Ametek RTC-187 Specifications
RTC Series
Reference
Temperature
Calibrator
RTC-187
Product Description
METEK continues to develop new techniques to improve performance, accuracy, convenience and
A
functionality of the well-known Jofra calibration 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 sophisticated than any existing calibrators.
Features & Models
The RTC oers 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 of the most used sensor sizes.
High prole design and well-known, long lasting Jofra quality.
The new RTC calibrator comes in three dierent 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.
Key Features
High Accuracy
Down to ± 0.04° C using the external reference sensor. 4-wire True-Ohm Measurement
technology is used.
Excellent Stability, 0.005° C
Wide Temperature Range
From -45 to 180° C (-49 to 356° 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 sensors 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
(coecients) 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-13v.01 guideline for the
testing of dry-blocks.
Unique Temperature Performance
DLC
90
807060
50
40
30
20
10
0
0.00
Axial Temperature Homogeneity in °C
Distance to Bottom of Insert in mm
Sensor-Under-Test
Upper ZoneMain Zone
Temperature
Dierence
Set
Temperature
Internal Reference
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-lled and other mechanical sensors.
The RTC series of calibrators provides precision
temperature calibration of sensors, what-
ever the type or format. This is accomplished
through an innovative active dual-zone heat-
ing technology.
With Jofra’s active dual-zone heating technol-
ogy, each heating zone is independently con-
trolled 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
DLC–Dynamic Load Compensation
during calibration. The DLC sensor measures the temperature homogeneity in the insert
and provides feedback to the active dual-zone system, which compensates the tem-
perature dierence to a minimum inside the insert. In this way, the DLC function makes
the homogeneity independent of the dierent loads of the insert, making the RTC the
best performing dry-block calibrator on the market when calibrated and tested accord-
ing to the globally accepted EURAMET/cg-13v.01 guideline for calibration and testing of
dryblocks.
The DLC system is comprised of a special dierential temperature sensor designed espe-
cially 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 ho-
mogeneity inside the insert, along with the normal temperature control and stabilization.
DLC–User Advantages
100
DLC Sensor
Slave
Master
To bring our well documented active dual-zone tech-
nology to an even higher level, we have developed
the patented DLC system.
This newly developed feature makes it possible to
perform top calibration specications without being
aected by the actual load, e.g. many sensors or very
big sensors.
The new DLC sensor improves on the RTC calibrator’s
already advanced dual-zone technology by control-
ling the homogeneity in not only the well, but inside
the insert where the sensors-under-test are placed
DLC Function On
DLC Function O
Thermo Sensitive Length
0.05 0.10 0.15
Axial temperature curves for a RTC calibrator with and without the DLC functionality activated.
0.20 0.25
Calibrating with the DLC sensor oers 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 vari-
ous 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 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 CLD indicates when the calibration values can be read.
USB Connector for Communication
Another new RTC feature is the USB connection that facilitates easy communication with Jofra-
CAL. The USB connection also supports easy download of future rmware upgrades.
errors is no longer necessary. 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 giv-
ing a fail-safe plug’n’play calibration system.
Unique Reference Sensors
The new STS-200 reference sensors and the
DLC sensors have been specially designed.
They are both angled 90˚ and have been
customized to t 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.
Easy to Carry Only 10.5 kg
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 ash capability for easy rmware upgrades as well as already integrat-
ed LAN communication, SD-card slot and USB host connectors for future use.
Intelligent Reference Sensors
The Jofra STS-200 intelligent reference sensors
as well as the new DLC sensor are all contain-
ing all individual calibration data regarding the
sensor.
Firstly, this means that the time-consuming
coecient downloading sequence with risk of
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 com-
promising 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 Inserts
The new cooling calibrator RTC-156/157 are using the same insert dimensions (30x150mm) as
some of our existing calibrators. This makes it possible to reuse inserts from other calibrators.
Fast Temperature Calibration -24° C @ 15 min
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.
New Multi-Hole Insert Kits
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 easily be read from a distance.
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 rst kit is a metric insert kit consisting of only four in-
serts covering all diameters from 3 to 13mm. The other is an
imperial insert kit consisting of only three inserts covering
six dierent sizes from /” to ½”.
All inserts have holes for both STS reference sensors 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 lightweight strategy.
Wide Temperature Range 225° C
The RTC-series can perform calibration over a very wide temperature range starting from -45° C
and up to 180° C (-49 to 356° F). This makes it possible to perform calibration jobs over a range of
225° C (360° F) with only one calibrator.
Easy to Read Color Display and
User-Friendly Navigation
The large display contains more detailed infor-
mation at a glance, such as:
Stability status.
Load compensation status.
Real time clock.
Serial number of reference sensor.
Sensor-under-test status.
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 reference sensors and DLC sensors in the
carrying case with 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,
certicates, plugs, insert tools etc.
All compartments 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 calibrator and the accessories, the compartments are designed to
hold the accessories xed during transportation.
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 cali-
bration procedure.
Loading...