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Ss rtc-156 157
1. ISO 9001 Manufacturer
t e m p e r a t u r e
Specification Sheet, SS-RTC-156/157
» High accuracy
Down to ±0.04°C using the external refer-
ence sensor. 4-wire True-Ohm-Measurement
technology is used.
» Excellent stability 0.005˚C
» Wide temperature range
RTC-156 from -30 to 155°C (-22 to 311°F)
RTC-157 from -45 to 155°C (-49 to 311°F)
» Improved temperature
homogeneity
Unique active dual-zone block ensures good
temperature homogeneity in the calibration
zone
» DLC
Dynamic Load
Compensation
Perfect temperature uniformity in
the insert, even when calibrating large sen-
sors or many sensors at a time.
B and C models only
» Display indicator
for temperature uniformity
Shows the degree of temperature uniformity in
the insert when using the new DLC technology.
B and C models only
» Intelligent reference sensors
JOFRA reference sensors are supplied with
intelligent plugs, holding the calibration data
(coefficients) of the reference sensor. This is
a truly plug’n’play calibration system
» USB communication
All RTC calibrators communicate via an
easy-to-use USB port
» EURAMET
Best performing dry-block with regard to the
EURAMET/cg-13/v.01 guideline for testing of
dry blocks
AMETEK continues to develop new techniques to improve performance,
accuracy, convenience and functionality of the well-known JOFRA cali-
bration products. By doing so, we maintain our position as the leading
worldwide manufacturers of temperature dry-block calibrators.
We are proud to introduce our top model RTC (Reference Temperature
Calibrator), which is no exception to the above and even more sophisti-
cated than any existing calibrators.
The RTC offers many new fantastic features, such as:
• Patent pending DLC, Dynamic Load Compensation system, for perfect
temperature uniformity in the insert
• Unique intelligent sensors for plug’n’play connection
• USB connector for communication
• Easy-to-read color VGA display with perfect overview of the actual status
• Intuitive, fast and user-friendly navigation
• Lightweight and easy to carry around
• New functional carrying case design
• New multi-hole insert kits covering all the most used sensor sizes
• High profile design and the well-known long lasting JOFRA quality
The new RTC calibrator comes in three different models – A, B, and C.
• RTC-A reference temperature calibrator
• RTC-B reference temperature calibrator with input for reference sensor,
DLC sensor and sensors-under-test
• RTC-C reference temperature calibrator with input for reference sensor
and DLC sensor
Reference Temperature Calibrator
Model RTC-156 & RTC-157
Best dry-blockson the market!
Patent
pending!
DLC
2. 2 www.ametekcalibration.com Reference Temperature Calibrator • RTC-156/157
tionality, the RTC is the best performing dry-block calibrator
on the market, when being calibrated and tested according
to the globally accepted EURAMET/cg-13/v.01 guideline for
calibration and testing of dry-blocks.
The DLC system comprises a special differential temperature
sensor designed especially for the RTC. The sensor is placed
in the insert and connected to the calibrator. When the DLC
function is enabled, the calibrator will automatically equalize
the temperature homogeneity inside the insert on top of the
normal temperature control and stabilization.
DLC - User advantages
Calibrating with DLC sensor gives the following advantages:
1. Calibration of several sensors simultaneously
2. Calibration of thick sensors
3. Gives TSL (Thermo Sensitive Length) independency. It is
no longer necessary to know the TLS of the sensor
4. Compensates for sensor production tolerances like the
PT100 element being mounted in various positions in
the sensor
5. Trouble free calibration of sensors with PT100 elements
up to 60 mm length
6. The DLC indicator proves that the dual-zone is active an
functioning well
7. Proves that the calibrator is working perfect. The DLC
value should be very close to 0.00 when the calibrator
is loaded with DLC sensor and an external reference
sensor
8. Together with the stability indication, the CLD indicates
when the calibration values can be read
Axial temperature curves for a RTC calibrator with and with-
out the DLC functionality activated
USB connector for communication
Another new RTC feature is the USB connection that facili-
tates easy communication with JOFRACAL. The USB con-
nection also supports easy download of future firmware
upgrades.
The new USB connection provides fast and easy access to
all laptops without the need of RS-232 to USB converters.
Future-proof through e.g. a flash capability for easy firm-
ware upgrades as well as already integrated LAN commu-
nication, SD-card slot and USB host connectors for future
use.
Unique temperature performance
The RTC series of calibrators provides precision tempera-
ture calibration of sensors, whatever the type or format.
This is accomplished through an innovative active dual-
zone heating technology.
The JOFRA RTC-series features our well-known active dual-
zone heating technology. Each heating zone is indepen-
dently controlled for precision temperature calibration. The
homogeneity in the lower part is close to that of a laboratory
liquid bath. The lower zone ensures optimum heat dissipa-
tion throughout the entire calibration zone. The upper zone
compensates for heat loss from the sensor-under-test and
from the open top. This design also eliminates the need for
extra insulation of sensors-under-test and makes it possible
to calibrate liquid-filled and other mechanical sensors.
DLC - Dynamic Load Compensation
To bring our well documented active dual-
zone technology to an even higher level, we
have developed the patent pending new DLC
system.
This newly developed unique feature makes it possible
to perform top calibration specifications without being affect-
ed by the actual load e.g. many sensors or very big sensors.
A new DLC sensor, Dynamic Load Compensation sensor,
has been specially developed for this purpose.
The RTC calibrator features the active dual zone tempera-
ture control which improves the homogeneity in the well by
adjusting the temperature in the top of the well to the same
temperature as in the bottom. The dual zone keeps this dif-
ference at a minimum.
The new DLC sensor
improves the homogene-
ity even more by controlling
the homogeneity not only in
the well, but also inside the
insert, where the sensors-
under-test are placed during
calibration. The DLC sensor
measures the temperature
homogeneity in the insert
and provides feedback to
the active dual-zone system,
which now compensates the
temperature difference to a
minimum inside the insert.
In this way, the DLC func-
tion makes the homogeneity
independent of the different
loads of the insert.
Based on the new DLC func-
Patent
pending!
DLC Sensor
3. www.ametekcalibration.com 3RTC-156/157 • Reference Temperature Calibrator
New multi-hole insert kits
Two special multi-hole insert kits have been developed to
comply with calibration of almost any sensor diameter with-
out having to buy numerous inserts.
The first kit is a metric insert kit consisting of only four
inserts covering all diameters from 3 to 13mm. The other is
an imperial insert kit consisting of only three inserts cover-
ing six different sizes from ⅛” to ½”.
All inserts have holes for
both STS reference sen-
sors and DLC sensors.
With this new insert kit
in the carrying case,
the user is now able to
calibrate all commonly
known sensor sizes.
These new insert kits are
part of the JOFRA light-
weight strategy.
Wide temperature range
The RTC-series can perform calibration over a very wide
temperature range starting from -45°C and up to 155°C
(-49 to 311°F). This makes it possible to perform calibration
jobs over a range of 200°C (360°F) with only one calibrator.
Easy-to-read
color display and user-friendly navigation
The new 5.7” full color VGA display is very easy to read.
The main temperatures, like SET, READ, TRUE and SUT
(Sensor under test), are always displayed at all stages of
the programming or calibration procedure.
The navigation is menu-driven and very logical to use and
the display shows any important information needed for the
current function in use. The communication windows pop
up and are followed by discrete sound messages.
The display is very bright and the main information can eas-
ily be read from a distance.
The large display contains more detailed information at a
glance, such as:
• Stability status
• Load compensation status
• Real time clock
• Serial number of reference sensor
• Sensor-under-test status
Intelligent reference sensors
The JOFRA STS-200 intelligent reference sensors as well
as the new DLC sensor are all containing all individual cali-
bration data regarding the sensor.
Firstly, this means that the time-consuming coefficient
downloading sequence with risk of errors is no longer nec-
essary. Secondly, the user can change the reference sensor
and be up and running immediately.
With the intelligent sensors, AMETEK has eliminated a
source of error and the system is now giving a fail-safe
plug’n’play calibration system.
Unique
reference sensors
The new STS-200 refer-
ence sensors and the DLC
sensors have been spe-
cially designed. They are
both angled 90˚ and have
been customized to fit the
calibrator so they are only
slightly higher than the top
of the RTC calibrator.
The unique design makes
it possible to calibrate
threaded sensors and sen-
sors with connection heads
without any problems.
Easy to carry
A calibrator is carried from one job to another. Therefore,
it is essential that the weight of the calibrator is as low as
possible.
We have thoroughly included the weight issue in our design
and have developed new design techniques that have
made the RTC calibrator lightweight and easy to carry
around without compromising its quality, durability and
functionality.
The purpose of minimizing the weight of the RTC calibrator
is to protect, especially frequent users from overload.
Same size of inserts
The new cooling calibrator RTC-156/157 are using the
same insert dimensions (30x150mm) as some of our exist-
ing calibrators. This makes it possible to reuse inserts from
other calibrators.
Fast temperature calibration
Time is money! This is why all the new RTC calibrators
have an increased heating and cooling speed compared to
all other calibrators. Heating and cooling speed has been
increased by up to 20%. The implication is savings in both
production downtime and general calibration costs.
Only
10.5 kg
-45˚C
-24˚C@15 min.
4. 4 www.ametekcalibration.com Reference Temperature Calibrator • RTC-156/157
Special designed carrying case
AMETEK has designed an all-in-one-handle carrying case.
We have now made it possible to store both the STS refer-
ence sensors and DLC sensors in the carrying case with an
optimum physical protection. There is room for inserts and
insulation plugs to cover all dimensions and compartments
for the new integrated support rod set, wires, manuals, cer-
tificates, plugs, insert tools etc.
All rooms are specially designed to hold one of the above
mentioned items. This makes it very easy to keep track of
any accessories.
For optimum protection of the cali-brator and the accesso-
ries, the compartments are designed to hold the accessories
fixed during transportation.
Integrated support rod
The new integrated support rod is part
of the reduced weight philosophy. It is
lightweight and very easy to mount on
the RTC. Two fixing holes are integrated
in the calibrator where the support rods
can be mounted.
MVI - Secure temperature stability
MVI stands for ’’Mains power Variance Immunity’’.
Unstable mains power is a major contributor to on-site
calibration inaccuracies. Traditional temperature calibra-
tors often become unstable in production environments
where large electrical motors, heating elements, and other
devices are periodically cycled on or off. The cycling of sup-
ply power can cause the temperature regulator to perform
inconsistently, leading to both inaccurate readings and
unstable temperatures.
The JOFRA RTC calibrators all employ the MVI functional-
ity, thus avoiding such stability problems. The MVI func-
tionality is obtained by running the calibrator on stabilized
DC voltage.
Highest accuracy (model B & C only)
The RTC series calibrators may be supplied with a built-in
reference thermometer to be used with an external refer-
ence sensor. This feature allows the instrument to perform
calibrations on-site, while maintaining a high accuracy.
A special 90° angled external reference sensor has been
designed to accommodate calibration of sensors with a
transmitter head, top connector or similar arrangement.
The user can decide whether to read the built-in reference
sensor or the more accurate angled reference sensor from
the large, easy-to-read LCD display of the calibrator. The
external sensor and the internal sensor readings are inde-
pendent of one another.
SET-Follows-TRUE (model B & C only)
Available on B and C models only, the “SET-Follows-TRUE”
makes the instrument tune in until the temperature reading
of the external reference “TRUE” meets the desired “SET”
temperature. This feature is important when it is critical that
the temperature of the calibration zone matches the desired
temperature when measured with accurate external refer-
ence sensors.
Reading of sensor-under-test (model B only)
Model B of the RTC is equipped with a built-in accu-
rate measuring circuit for sensor-under-test (input), which
enables measurement of virtually any type of temperature
sensors including: Resistance thermometers (RTD), ther-
mocouples (TC), transmitters, milliamps (mA), voltage (V)
and thermostats
The RTC calibrators can be user-programmed from the
keyboard for fully automatic sensor calibrations. Once the
unit is programmed, the instrument is self-operating and
performs the configured calibration routine. All calibration
data are stored and can be read in the display.
Switch test (model B only)
Users may perform a thermoswitch test and find “Open”,
“Closed” and the hysteresis (deadband) automatically. The
instrument retains the last twenty test results.
Auto-stepping
Up to 20 different temperature steps may be programmed
including the hold time for each step. Upon completion of
an auto step routine, the user can easily read the results
for the sensor-under-test on the RTC display. Results from
twenty auto-step calibrations are stored.
The “Set temperature” feature allows the user to set the
exact desired temperature with a resolution of 0.001°.
5. www.ametekcalibration.com 5RTC-156/157 • Reference Temperature Calibrator
JOFRACAL calibration software
JOFRACAL is a highly versatile calibration software that is
supplied together with the RTC calibrators. The software
ensures easy calibration of all kind of temperature sen-
sors, such as RTD´s, thermocouples, transmitters and
thermoswithes. Furthermore, it can be used for pressure
calibration i.e. pressure gauges and pressure switches.
JOFRACAL integrates with JOFRA calibration instruments.
As for temperature calibrators, it is the whole range of
temperature calibrators. Regarding pressure calibrators, it
integrates with DPC-500, HPC and IPI pressure calibrators.
JOFRACAL also has full integration with the series of signal
calibrators.
JOFRACAL may also be used for manual calibrations, as it can
be set up to accept manual entry of calibration data together
with other liquid baths, ice points or dry-block heat sources.
The calibration data collected can be stored on a PC for
later recall or analysis. The RTC calibrator stores the cali-
bration procedure and may be taken out to the process site
without bringing a personal computer.
This allows the RTC calibrator to:
• Operate as a stand-alone instrument, using advanced
calibration routines without the assistance of a personal
computer on site. The work order functionality
• Prevent unauthorized changes to a calibration routine.
Personnel who are not authorized to alter a calibration
routine cannot do so
Once all calibrations are completed, the data may be up-
loaded to the JOFRACAL for printing of certificates. The
data collected may be stored on the personal computer for
later recall or analysis.
JOFRACAL offers extended output formats of the cap-
tured calibration data such as PDF file format and ASCII/
semicolon separated text format for further processing and
calculation of data in spreadsheets and word processors.
Calibration of up to 24 sensors
with JOFRA ASM
Using the JOFRA RTC series together with the ASM,
Advanced Signal Multi-scanner, offers a great time-saving
automatic solution to calibrate multiple temperature sen-
sors at the same time. The ASM series is an eight channel
scanner controlled by the JOFRACAL software on a PC. Up
to 3 ASM units can be stacked to calibrate up to 24 sen-
sors at a time. It can handle signals from 2-, 3- and 4 wire
RTD’s, thermocouples, transmitters, temperature switches
and voltage.
Enhanced stability
A stability indicator shows when the RTC calibrator has
reached the desired temperature and is stable. The user
may change the stability criteria for the external reference
and the sensor-under-test quickly and simply. The stabil-
ity criterion is the user’s security of a correct calibration.
A count-down timer is displayed next to the temperature
read-out.
Instrument setups
The RTC series allows the user to store up to ten (10) com-
plete instrument setups. You may store all sorts of informa-
tion including temperature units, stability criteria, use of
external reference sensors, resolutions, sensors-under-test
(SUT), conversions to temperature, display contrasts, etc.
The setup may be recalled at any time.
Maximum and minimum temperature
From the setup menu, the user can select the maximum
and minimum temperature limit for the calibrator. This func-
tion prevents damage to the sensor-under-test caused by
excessive temperatures and it helps reducing sensor drift
from exposures of too high temperatures. This feature can
be locked with an access code.
Silent Operation
The RTC calibrator can be programmed to run in silent
operation. This function is an advantage if calibrating in
a laboratorie or in an office. If used in silent operation the
calibrator is not using its full speed potential.
As found/As left (model B only)
When running a calibration initiated from a work order, the
user can select the calibration as an As Found or an As Left
calibration.
SYNC output
A synchronization output signals when the instrument is
stable and may be used with ancillary devices such as
video recorders, digital cameras or as an input to a data
logging device. The SYNC output may be useful for auto-
mating and documenting your calibrations when calibrating
external reading devices.
Calibration of indication devices
When calibrating an indicating device in the work order
mode, users may key in the results during or after the test.
Using the “Calibration info” function, the user may view the
complete calibration task, including the “Scenario” before
the calibration takes place.
Hardware requirements
• INTELTM
486 processor
• (PENTIUMTM
800 MHz recommended)
• 32 MB RAM (64 MB recommended)
• 80 MB free disk space on hard disk prior to installation
• Standard VGA (800 x 600, 16 colors) compatible screen
• (1024 x 786, 256 colors recommended)
6. 6 www.ametekcalibration.com Reference Temperature Calibrator • RTC-156/157
Temperature range
RTC-156
@ ambient temp. 0°C/32°F.........-46 to 155°C/-51 to 311°F
@ ambient temp. 23°C/73°F.......-30 to 155°C/-22 to 311°F
@ ambient temp. 40°C/104°F.....-15 to 155°C/ 5 to 311°F
RTC-157
@ ambient temp. 0°C/32°F.........-57 to 155°C/-71 to 311°F
@ ambient temp. 23°C/73°F.......-45 to 155°C/-49 to 311°F
@ ambient temp. 40°C/104°F.....-31 to 155°C/-24 to 311°F
Accuracy (model B & C) with external STS ref. sensor
RTC-156 B & C.......................................... ±0.04°C/±0.07°F
RTC-157 B & C.......................................... ±0.04°C/±0.07°F
12-month period. Relative to reference standard. Specifications
by use of the external JOFRA STS-200 reference sensor
Accuracy with internal reference sensor
RTC-156 A, B & C...................................... ±0.10°C/±0.18°F
RTC-157 A, B & C...................................... ±0.10°C/±0.18°F
Stability
RTC-156................................................±0.005°C/±0.009°F1)
RTC-157................................................±0.005°C/±0.009°F1)
Measured after the stability indicator has been on for 15 minutes.
Measuring time is 30 minutes.
Radial homogeneity (difference between holes)
RTC-156..........................................................0.01°C/0.02°F
RTC-157..........................................................0.01°C/0.02°F
Resolution (user-selectable)
All temperatures .......................1° or 0.1° or 0.01° or 0.001˚
Temperature unit in display
User-selectable ............................................... °C or °F or K
Heating time
RTC-156 -30 to 23°C/-22 to 73°F.................. 4 minutes
23 to 155°C/73 to 311°F............... 15 minutes
RTC-157 -45 to 23°C/-49 to 73°F.................. 7 minutes
23 to 155°C/73 to 311°F............... 17 minutes
Cooling time
RTC-156 155 to 100°C/311 to 212°F............. 4 minutes
100 to 23°C/212 to 73°F................. 8 minutes
23 to -24°C/73 to -11°F................ 15 minutes
-24 to -30°C/-11 to -22°F............. 10 minutes
RTC-157 155 to 100°C/311 to 212°F............. 5 minutes
100 to 23°C/212 to 73°F............... 10 minutes
23 to -30°C/73 to -22°F................ 17 minutes
-30 to -45°C/-22 to -49°F............. 25 minutes
Time to stability (approx.)
RTC-156.............................................................. 10 minutes
RTC-157.............................................................. 10 minutes
Immersion depth
RTC-156........................................................ 160 mm/6.3 in
RTC-157........................................................ 160 mm/6.3 in
FUNCTIONAL SPECIFICATIONS
All input specifications apply to the dry-block of the calibrator
running at the respective temperature (stable plus an additional
20 minute period).
All input specifications are valid for RTC-156 and RTC-157.
RTD reference input (B & C models only)
Type................... 4-wire RTD with true ohm measurements1)
F.S. (Full Scale).......................................................400 ohm
Accuracy (12 months).......±(0.0012% rdg. + 0.0005% F.S.)
Note 1: True ohm measurement is an effective method to
eliminate errors from induced thermoelectrical voltage
DLC sensor input (B & C models only)
RTD sensor under test input (B model only)
F.S. (range)..............................................................400 ohm
Accuracy (12 months).................. ±(0.002% Rdg.+0.002% F.S.)
F.S. (range)............................................................4000 ohm
Accuracy (12 months)......... ±(0.005% Rdg. + 0.005% F.S.)
2-wire.............................................................add 50 mOhm
INPUT SPECIFICATIONS
RTD Type Temperature 12 months
°C °F °C °F
Pt100
reference
-50 -58 ±0.008 ±0.015
0 32 ±0.008 ±0.015
155 311 ±0.011 ±0.019
Type Temperature 12 months
°C °F °C °F
DLC 155 -50 -58 ±0.014 ±0.025
0 32 ±0.010 ±0.018
155 311 ±0.010 ±0.018
RTD Type Temperature 12 months
°C °F °C °F
Pt1000 -50 -58 ±0.064 ±0.115
0 32 ±0.073 ±0.131
155 311 ±0.076 ±0.136
Pt500 -50 -58 ±0.115 ±0.191
0 32 ±0.127 ±0.228
155 311 ±0.142 ±0.255
Pt100 -50 -58 ±0.026 ±0.046
0 32 ±0.026 ±0.046
155 311 ±0.030 ±0.054
7. www.ametekcalibration.com 7RTC-156/157 • Reference Temperature Calibrator
Thermocouple input
Range ...................................................................... ±78 mV
F.S. (Full Scale).......................................................... 78 mV
Accuracy (12 months)......... ±(0.005% Rdg. + 0.005% F.S.)
.
* Excl. CJC accuracy ±0.3˚C / ±0.54˚F
Transmitter supply
Output voltage................................................. 24VDC ±10%
Output current........................................... Maximum 28 mA
Transmitter input mA (B model only)
Range.................................................................. 0 to 24 mA
Accuracy (12 months)...........±(0.005% Rdg. +0.010% F.S.)
Voltage input VDC (B model only)
Range:............................................................... 0 to 12 VDC
Accuracy (12 months)...........±(0.005% Rdg. +0.010% F.S.)
Switch input (B model only)
Switch dry contacts
Test voltage................................................Maximum 5 VDC
Test current...............................................Maximum 2.5 mA
Mains specifications
Voltage................................115V (90-127) / 230V (180-254)
Frequency, non US deliveries................50 Hz ±5, 60 Hz ±5
Frequency, US deliveries........................................60 Hz ±5
Power consumption (max.).........................................400 W
TC Type Temperature 12 months*
°C °F °C °F
E -50 -58 ±0.09 ±0.17
0 32 ±0.06 ±0.11
155 311 ±0.06 ±0.11
J -50 -58 ±0.10 ±0.18
0 32 ±0.08 ±0.14
155 311 ±0.09 ±0.16
K -50 -58 ±0.14 ±0.24
0 32 ±0.10 ±0.19
155 311 ±0.11 ±0.20
T -50 -58 ±0.15 ±0.26
0 32 ±0.10 ±0.18
155 311 ±0.08 ±0.15
R -50 -58 ±1.30 ±2.35
0 32 ±0.78 ±1.40
155 311 ±0.47 ±0.84
S -50 -58 ±0.98 ±1.76
0 32 ±0.78 ±1.40
155 311 ±0.49 ±0.89
N -50 -58 ±0.20 ±0.35
0 32 ±0.15 ±0.27
155 311 ±0.13 ±0.23
XK
(onlyinRussian
versions)
-50 -58 ±0.09 ±0.15
0 32 ±0.06 ±0.11
155 311 ±0.06 ±0.11
U -50 -58 ±0.13 ±0.24
0 32 ±0.10 ±0.18
155 311 ±0.08 ±0.14
Communication interface
Serial data interface..............................USB 2.0 device port
Serial data interface....................USB 2.0 host double port*
LAN....................................... Ethernet MAC 10/100 Base-T*
SD............................................................................. SD slot*
* for future expansion
Miscellaneous
Operating temperature.......................0 to 40°C/32 to 104°F
Storage temperature........................ -20 to 50˚C/-4 to 122˚F
Humidity .......................................................... 0 to 90% RH
Protection class ...........................................................IP-10
PHYSICAL SPECIFICATIONS
Weight and instrument size (L x W x H)
RTC-156/157.................................................10.5 kg/23.2 lb
RTC-156/157........362 x 171 x 363 mm/14.3 x 6.7 x 14.3 in
Shipping (without carrying case)
RTC-156/157.................................................14.8 kg/32.6 lb
Size.......................570 x 235 x 440 mm/22.4 x 9.3 x 17.3 in
Shipping (including optional carrying case)
RTC-156/157.................................................20.5 kg/45.1 lb
Size.....................650 x 380 x 500 mm/25.5 x 14.9 x 19.7 in
Shipping (carrying case only)
Weight.............................................................8.0 kg/13.2 lb
Size.....................650 x 380 x 500 mm/25.5 x 14.9 x 19.7 in
INSERTS
Insert dimensions
RTC-156/157 outer diameter......................29.7 mm/1.17 in
RTC-156/157 inner diameter (multi hole)....25.6 mm/1.01 in
RTC-156/157 inner diameter (single hole)..22.0 mm/0.87 in
RTC-156/157 length.....................................150 mm/5.91 in
Weight of non-drilled insert (approx.)
RTC-156/157...................................................290 g/10.2 oz
Use of other inserts may reduce performance of the cali-
brator. To get the best results out of the calibrator, the
insert dimensions, tolerance and material is critical. We
highly advise using JOFRA inserts, as they guarantee
trouble free operation.
8. 8 www.ametekcalibration.com Reference Temperature Calibrator • RTC-156/157
UN1
UN3
UN2
PREDRILLED INSERTS FOR RTC-156/157
All predrilled inserts have holes for:
4 mm reference sensor • ¼” reference sensor • 3 mm hole for DLC sensor
All inserts are supplied with an insulation plug drilled with the necessary holes
Spare part no. for predrilled inserts with reference holes
Instrument
Sensor diameter Insert code 1 RTC-156/157
A/B/C
3 mm 003 127312
4 mm 004 127313
5 mm 005 127314
6 mm 006 127315
7 mm 007 127316
8 mm 008 127317
9 mm 009 127318
10 mm 010 127319
11 mm 011 127320
12 mm 012 127321
13 mm 013 127322
14 mm 014 127323
15 mm 015 127324
16 mm 016 127325
Package of the above inserts SMM 127336
Spare part no. for predrilled inserts with reference holes
Instrument
Sensor diameter Insert code 1 RTC-156/157
A/B/C
1/8 in 125 127302
3/16 in 187 127303
1/4 in 250 127304
5/16 in 312 127305
3/8 in 375 127306
7/16 in 437 127307
1/2 in 500 127308
9/16 in 562 127309
5/8 in 625 127310
Package of the above inserts SIM 127335
Note 1: Use the insert code, when ordering a JOFRA standard insert together with the RTC calibrator
Picture 1 shows a custom-made insert and our STS-102 A cable reference
sensor placed in a RTC-156 calibrator. Picture 2 shows the sanitary sensor
when fitted into the insert, ready for calibration. Note that the design makes
room for the reference sensor cable. Complete STS102 application kit for
RTC-156 model B and C including STS102A030EH, recalibration tube, 5-Pack
undrilled flange insertion tubes with cable groove, and carrying case.
Order No. 127279
APPLICATION KIT
FOR CALIBRATION OF SANITARY SENSORS
Picture 2Picture 1
UNDRILLED INSERTS FOR RTC SERIES
Inserts, undrilled incl. insulation plugs
Instrument
Inserts Insert code1
RTC-156 A/B/C
5-pack, undrilled inserts with no holes UN1 127299
5-pack, undrilled inserts with hole for DLC sensor UN2 127300
5-pack, undrilled inserts with 2 holes for STS reference sensors
(4mm & ¼”) and 1 hole for DLC sensor
UN3 127301
Undrilled insulation plug 122781
Note 1: Use the insert code, when ordering a JOFRA standard undrilled insert together with the RTC calibrator
9. www.ametekcalibration.com 9RTC-156/157 • Reference Temperature Calibrator
Spare part no. for multi-hole inserts - metric (mm)
Instrument
Insert type Insert code1 RTC-156/157
A/B/C
Multi-hole type 1 M01 127329
Multi-hole type 2 M02 127330
Multi-hole type 3 M03 127331
Multi-hole type 4 M04 127332
Multi-hole type 7 M07 127241
Multi-hole type 8 M08 127242
Multi-hole type 9 M09 127243
Set of 4 Metric Multi Inserts, 3mm to 16mm
(Incl. 127332, 127241, 127242 and 127243)
SM 127326
MULTI-HOLE INSERTS FOR RTC-156/157 - METRIC (MM)
Spare part no. for multi-hole inserts - imperial (inch)
Instrument
Insert code Insert code1 RTC-156/157
A/B/C
Multi-hole type 5 M05 127327
Multi-hole type 6 M06 127328
Multi-hole type 10 M10 127247
Set of 3 Imperial Multi Inserts, 1/8 to 1/2 inch
(Incl. 127308, 127328 and 127247)
SI 127311
MULTI-HOLE INSERTS FOR RTC-156/157 - IMPERIAL (INCH)
9 mm
Multi-hole M04
1/4”
3 mm
4 mm
5 mm
6 mm
6 mm
3 mm
4 mm
4 mm
Multi-hole M01
1/4”
4 mm
4 mm
4 mm
6 mm
3 mm
4 mm
Multi-hole M02
6 mm
6 mm
1/4”
6 mm
6 mm
4 mm
3 mm
Multi-hole M03
1/4”
3 mm
6 mm
3 mm
3 mm
3 mm
3 mm
3 mm
3 mm
4 mm
3 mm
13 mm
Multi-hole M07
1/4”
3 mm
4 mm
7 mm
11 mm
Multi-hole M09
1/4”
3 mm
4 mm
10 mm
7/16”
Multi-hole M10
1/4”
3 mm
4 mm
5/16”
12 mm
Multi-hole M08
1/4”
3 mm
4 mm
8 mm
Multi-hole M05
1/4”
3 mm
4 mm
1/4”
1/4”1/4”
1/4”
Multi-hole M06
1/4”
3 mm
4 mm
1/4”
3/16”
1/8”
3/8”
Note 1: Use the insert code, when ordering a JOFRA standard multi-hole insert together with the RTC calibrator
Note 1: Use the insert code, when ordering a JOFRA standard multi-hole insert together with the RTC calibrator
All inserts are supplied with an insulation plug drilled with the necessary holes
All inserts are supplied with an insulation plug drilled with the necessary holes
10. 10 www.ametekcalibration.com Reference Temperature Calibrator • RTC-156/157
OPTIONS
Carrying Case - Option CT
With our new special designed carrying case it is now
possible to store all your sensors in the case with an opti-
mum physical protection. With improved integrated trolley
system for easy and safe transportation.
Support rod set - Option SR
Support rod for sensors to be mount-
ed on all JOFRA RTC dry-block cali-
brators. Holds the sensor under test in
its position, while calibrating. Includes
2 sensor grips and 2 fixtures for sen-
sor gribs.
ACCESSORIES
125066 Extra fixture for sensor grib
125067 Extra sensor grib
122771 Mini-Jack connector for stable relay output
120516 Thermocouple Male Plug - Type J - Black
120517 Thermocouple Male Plug - Type K - Yellow
120514 Thermocouple Male Plug - Type N - Orange
120515 Thermocouple Male Plug - Type T - Blue
120518 Thermocouple Male Plug - Type R / S - Green
120519 Thermocouple Male Plug - Type Cu-Cu - White
Model A, B and C:
• RTC dry-block calibrator (user specified)
• Mains power cable (user specified)
• Traceable certificate - temperature performance
• Tool for insertion tubes
• JOFRACAL
• USB cable
• Set of rubber cones for insulation plugs
• Manual
Model B instruments contain the following extra items:
• Test cables (2 x red, 2 x black)
• Traceable certificate - input performance for reference
sensor and DLC sensor
• Traceable certificate - input performance for sensor-
under-test inputs
Model C instruments contain the following extra items:
• Traceable certificate - input performance for reference
sensor and DLC sensor
STANDARD DELIVERY
FUNCTIONAL COMPARISON
Model A Model B Model C
Dual-zone heating/cooling block • • •
MVI - Mains Variance Immunity (or similar) • • •
Stability indicator • • •
Automatic step function • • •
USB communication • • •
Display resolution 0.001˚ • • •
Programmable max. temperature • • •
SYNC output (for external recording device) • • •
Calibration of short sensors in special insert • •
External precision reference sensor input • •
External precision DLC reference sensor input • •
“SET” follows “TRUE” • •
Load compensation functionality • •
Input for RTD, TC, V, mA •
4-20 mA transmitter input incl. 24 VDC supply •
All inputs scalable to temperature •
Automatic switch test (open, close and hysteresis) •
Download of calibration work orders from PC •
Upload of calibration results (as found & as left) •
Model A Model B Model C
NEW!
11. www.ametekcalibration.com 11RTC-156/157 • Reference Temperature Calibrator
ORDERING INFORMATION
Order number Description
Base model number
RTC156 RTC-156 Series, -30˚C to 155˚C (-22˚F to 311˚F)
RTC157 RTC-157 series, -45˚C to 155˚C (-49˚F to 311˚F)
Model version
A Basic model, without input
B Full model, incl. DLC sensor input, Reference sensor input, Sensor-under-test input
C Middle model, incl. DLC sensor input, Reference sensor input,
Power supply (US deliveries 60 Hz only)
115 115VAC
230 230VAC
Mains power cable
A European, 230V
B USA/Canada, 115V
C UK, 240V
D South Africa, 220V
E Italy, 220V
F Australia, 240V
G Denmark, 230V
H Switzerland, 220V
I Israel, 230V
Insert type and size
NON No insert selected (standard)
UNX 1 x Undrilled Insert (Please see Insert selection for code)
XXX 1 x Single hole insert (Please see Insert selection for code)
MXX 1 x Multi hole insert (Please see Insert selection for code)
SIX Set of 3 Imperial multi hole inserts. Covering holes from 1/8” to 1/2”
SMX Set of 4 Metric multi hole inserts. Covering holes from 3mm to 13mm
SIM Set of 9 Imperial inserts. Covering holes from 1/8” to 5/8”
SMM Set of 14 Metric inserts. Covering holes from 3mm to 16mm
Dynamic Load Compensation (B & C models only, optional)
DLC DLC sensor
STS Reference sensor (B & C models only, optional)
R1 STS-102 Ref. sensor. Dia. 4mm. Length 30mm (STS102A030EH)
R2 STS-200 Ref. sensor. Dia. 4mm. Length 161mm (STS200A915EH)
R3 STS-200 Ref. sensor. Dia. 1/4”. Length 161mm (STS200B915EH)
Calibration Certificate
F Traceable Callibration Certificate. (standard)
H Accredited Calibration Certificate
EA Full EURAMET Calibration Certificate
FS Traceable System Calibration Certificate (B & C model only)
HS Accredited System Calibration Certificate (B & C model only)
EAS Full EURAMET System Calibration Certificate (B & C model only)
EASD Full EURAMET System Calibration Certificate with DLC (B & C model only)
Accessories
CT Solid Protective Carrying case with trolley
SR Support rod set
TR Solid Protective Carrying case with trolley & Support rod set
Sample order number
RTC156 B 230 A SM DLC R2 EA CT
JOFRA RTC-156 B with 230VAC, EU power cord, set of metric inserts, DLC, STS-200 ref. sensor, full EA temp.
calibration certificate, and carrying case with trolley.
