Ametek RTC-159 Specifications
temperature
»
Widest temperature range
From -100 to 155°C (-148 to 311°F)
»
High accuracy
Down to ±0.06°C (±0.11°F) using the
external reference sensor. 4-wire True-OhmMeasurement technology is used
»
Most stable ultra cooler
calibration on the market
±0.03˚C (±0.05°F)
»
Perfect temperature
homogeneity in the insert
Even when calibrating large sensors or many
sensors at once, the unique, patent pending,
dynamic load compensation (DLC) system in
combination with JOFRA´s active dual-zone
technology ensures perfect temperature
homogeneity. (B and C models only)
As low as
you need to go!
Reference Temperature Calibrator
RTC-159 Ultra Cooler
Reach -80°C
in 65 minutes
to secure fast cooling and heating tem-
perature changes
»
Easy to carry
Weighing only 15.2 kg (33.5 lb), the RTC-159
is by far the lightest and most portable ultra
cooler on the market
»
Intelligent reference sensor
communication
JOFRA reference sensors are supplied with
intelligent plugs, holding the calibration data
(coefficients) of the reference sensor. This is
a truly plug & play calibration system
»
USB connector for
communication
All RTC calibrators communicate via an
easy-to-use USB port
»
EURAMET
Best performing dry-block with regard to the
EURAMET/cg-13 guideline for testing of dry
blocks
ISO 9001 Manufacturer
possible
The efficient free piston stirling
cooler (FPSC) technology is used
» Fastest calibration
Patented
cooling technology
The top model dry-block temperature calibrator – the JOFRA
is unsurpassed in the market. It is the most versatile temperature calibrator available with a temperature range that makes it especially ideal for
use in the health care, medical, pharmaceutical, biotechnology and food
industries.
The RTC-159 offers many advantages, such as:
• Relevant for many applications
With its extremely wide temperature reach, the RTC-159 can be used
in many applications where either high heat or extreme cooling is
needed
• User friendly
Intuitive to use and easy to run, the RTC-159 is equipped with a large
informative, easy-to-read color display, which makes reading error a
thing of the past
• Ergonomically correct
Lightweight and easy-to-carry, the RTC-159 is easy to move from job
to job
• Mechanically stable
With its high-tech design the RTC-159 ensures durability and lasting
quality
The RTC-159 is the newest member of the well-known JOFRA RTC family. The RTC family can meet any type of industrial temperature calibration need within the -100 to +700°C (-148 to 1292°F) temperature range.
®
RTC-159,
Specification Sheet, SS-RTC-159
Standard features
Best-in-class temperature homogeneity
The RTC series of calibrators provides precision temperature calibration of sensors, whatever the type or format.
USB connector for communication
Another RTC feature is the USB connection that facilitates
easy communication with the calibration management software JOFRACAL. The USB connection also supports easy
download of future firmware upgrades.
The JOFRA RTC-series features our well-known active dualzone heating technology. Each heating zone is independently 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 dissipation 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 any type of mechanical sensors.
Widest temperature range
The RTC-159 can perform calibration over a very wide
temperature range starting from -100°C and up to 155°C
(-148 to 311°F). The patented technology makes it possible
to perform calibration of sensors in applications ranging from
ultra-coolers to autoclaves.
Fastest temperature calibration
Time is money! This is why all the new RTC calibrators
heat and cool faster than all other calibrators on the market.
This saves you both in production downtime and general
calibration costs.
NEW!
Plug & play
The USB connection provides fast and easy access to all
laptops without the need for RS-232 to USB converters.
Future-proof through e.g. a flash capability for easy firmware upgrades as well as already integrated LAN communication, SD-card slot and USB host connectors.
Efficient cooling technology
The RTC-159 with both heating and cooling capabilities
features the FPSC (Free piston stirling cooler) as the cooling
source.
It is much more efficient than thermo-electric (Peltier) coolers.
Intelligent reference sensor communication
The JOFRA STS-200 intelligent reference sensor as well
as the unique DLC sensor contain all individual calibration
data regarding the sensor.
This means that the time-consuming coefficient
downloading sequence with risk of errors is no longer necessary. As well, the user can change the reference sensor and
be up and running immediately.
With these intelligent reference sensors, AMETEK has eliminated a source of error and the system is now a fail-safe plug
& play calibration system.
Intelligent recalibration information, IRI
In order to comply with ISO, SOP’s and FDA, it is imperative that the calibration equipment never exceeds the
expiry date of the calibration certificate. The RTC calibrator is, when switched on, constantly checking calibration
dates on the calibrator as well as for the connected STS
sensors. If the calibration period has expired, a warning
will appear in the display. This feature prevents costly
consequence evaluation.
Easy to read & user friendly
The new 5.7” full color VGA display is large, bright and very
easy to read – even from a distance. 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 important information needed for the
current function in use. The communication window pops
up and is followed by discrete sound messages.
The display contains detailed information at a glance, such
as:
• Stability status
• Load compensation status
• Real time clock
• Serial number of reference sensor
• Sensor-under-test status
Easy to carry
A calibrator is carried from one job to another and therefore it needs to weigh as little as possible. AMETEK has
designed the RTC calibrators to be lightweight and easy
to carry, without compromising quality, durability or functionality.
The RTC-159 weighs only 15.2 kg (33.5 lb), making it one of
the lightest ultra coolers on the market.
2 www.ametekcalibration.com Reference Temperature Calibrator • RTC-159
SET-Follows-TRUE (Models B & C only)
The “SET-Follows-TRUE” mode makes the instrument tune
in to 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 reference sensors.
Reading of sensor-under-test (Model B only)
Model B is equipped with a built-in accurate measuring circuit for sensor-under-test (input), which enables measurement of virtually any type of temperature sensors including: Resistance thermometers (RTD), thermocouples (TC),
transmitters, milliamps (mA), voltage (V) and thermostats.
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 and results are stored and can be read on 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 20 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 read the results for the
sensor-under-test on the RTC display. Results from twenty
auto-step calibrations can be held.
The “Set temperature” feature allows the user to set the
exact desired temperature with a resolution of 0.001°C (0.002°F).
Instrument setups
The RTC series allows the user to store up to 10 complete
instrument setups. You may store all types of information
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.
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 stability
criterion is the user’s security of a correct calibration.
A count-down timer is displayed next to the temperature
read-out.
Specially-designed carrying case
AMETEK has designed an all-in-one carrying case that
makes it possible to store both the STS reference sensors and DLC sensors in the carrying case with optimum
physical protection. There is room for inserts and insulation
plugs to cover all sensor-under-test dimensions and compartments for the wires, manuals, certificates, plugs, insert
tools, etc.
All compartments are specially designed to hold the
above-mentioned items
(5 inserts). This makes it
easy to keep track of all
your accessories.
For optimum protection
of the calibrator and the
accessories, the compartments are designed
to hold the accessories
firmly in place during
transportation.
JOFRACAL calibration software
JOFRACAL is a highly versatile
calibration software that is supplied
together with the RTC calibrator.
The software ensures easy calibration of all kind of temperature
sensors, such as RTD´s, thermocouples, transmitters and thermoswitches. Furthermore, it
can be used for pressure calibration i.e. pressure gauges
and pressure switches.
In conjunction with JOFRACAL, RTC calibrators can:
Maximum and minimum temperatures
From the setup menu, the user can select the maximum
and minimum temperature limit for the calibrator. This function prevents damage to the sensor-under-test caused by
excessive temperatures and it helps reduce sensor drift
from exposure to too high temperatures. This feature can
be locked with an access code.
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.
Calibration of indication devices
When calibrating an indicating device in 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.
• Operate as a stand-alone instrument, using advanced
calibration routines without the assistance of a personal computer on site. This is 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 uploaded to 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 captured 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.
Free download at www.jofra.com
www.ametekcalibration.com 3RTC-159 • Reference Temperature Calibrator
Optional features
Dynamic Load Compensation (DLC)
All RTC calibrators feature active dual-zone temperature
control, which improves the homogeneity in the well by
adjusting the temperature at the top of the well to the
same temperature as at the bottom. The dual-zone keeps
the temperature differences to a minimum.
To bring the well-documented active dual-zone technology
to an even higher level, AMETEK has developed a patentpending, new dynamic load compensation (DLC) system.
This system makes it possible to achieve exceptional calibration specifications without being affected by the actual
load (e.g. many sensors or very large sensors).
A Dynamic Load Compensation Sensor has been developed specifically for the RTC. This has been done to
improve homogeneity by controlling the temperature not
only within the well, but also inside the insert, where the
sensors-under-test are placed during calibration.
The DLC 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. This will together with the standard
temperature control and stabilization, provide feedback
to the active dual-zone system, which compensates the
temperature difference to a minimum. In this way, the DLC
function makes temperature homogeneity less dependent
on the load of the insert.
DLC – user advantages
Calibrating with DLC sensor gives the following advantages:
1. Calibration of several sensors simultaneously
2. Calibration of thick sensors
3. Gives thermo sensitive length (TLS) 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 40 mm length
6. The DLC indicator proves that the dual-zone is active
and 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 DLC indicates
when the calibration values can be read
When the DLC functionality is enabled, 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 guideline for calibration and testing of
dry blocks.
Unique reference sensors
The new STS-200 reference sensors and DLC sensors are
designed with a 90˚ angled rod 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 sensors with connection heads without any
problems.
STS-200 reference sensors also alert you when your calibration has expired.
Increased capacity with JOFRA ASM
Using the RTC series together with the ASM, Advanced
Signal Multi-scanner, offers a great time-saving automatic
solution to calibrate multiple temperature sensors at the
same time. The ASM series is an eight channel scanner
controlled by JOFRACAL software on a PC. Up to 3 ASM
units can be stacked to calibrate up to 24 sensors at a
time. It can handle signals from 2-, 3- and 4 wire RTD’s,
thermocouples, transmitters, temperature switches and
voltage.
More information can be found on www.jofra.com
Sensor support rod
The support rod is lightweight and easy to mount on the
RTC. Two fixing holes are integrated in the calibrator where
the support rods can be mounted.
Multi-hole insert kits
Two special multi-hole insert kits have been developed
to comply with calibration of almost any sensor diameter
without having to buy numerous inserts.
The first kit is a metric insert kit consisting of four inserts
covering all diameters from 3 to 13 mm. The other is an
imperial insert kit consisting of three inserts covering six
different sizes from 1/8” to 7/16”.
All inserts have holes for both STS reference sensors and
DLC sensors.
With this new insert kit in the carrying case, the calibration
technician is now able to calibrate all commonly-used sensor sizes with just one insert.
4 www.ametekcalibration.com Reference Temperature Calibrator • RTC-159
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