Ametek RTC-700 Specifications
temperature
»
High accuracy
Down to ±0.11°C using the external reference sensor. 4-wire True-Ohm-Measurement
technology is used.
»
Excellent stability to 0.008˚C
»
Wide temperature range
RTC-700 from 33 to 700ºC (91 to 1292ºF)
»
Improved temperature
homogeneity
Unique active triple-zone block
ensures good temperature homo-
geneity in the calibration zone.
NEW
Triple-zone
Best dry-block
on the market!
Reference Temperature Calibrator
RTC-700
Patent
pending!
»
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
(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.
Patent
»
Time-saving
Super high speed cooling.
»
EURAMET
Best performing dry-block with regard to the
EURAMET/cg-13/v.01 guideline for testing of
dry blocks.
ISO 9001 Manufacturer
pending!
AMETEK continues to develop new techniques to improve performance,
accuracy, convenience and functionality of the well-known JOFRA calibration products. By doing so, we maintain our position as the leading
worldwide manufacturer of temperature dry-block calibrators.
We are proud to introduce our new high temperature model RTC (Reference
Temperature Calibrator), which is no exception to the above and even
more sophisticated 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 with integrated trolley
• 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
Specification Sheet, SS-RTC-700
NEW
Triple-zone
Unique temperature performance
The RTC series of calibrators provides precision temperature calibration of sensors, whatever the type or format.
This is accomplished through an innovative active triplezone heating technology.
The RTC-700 features our new active triple-zone 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 two lower zones 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 liquid-filled and other mechanical sensors.
DLC - Dynamic Load Compensation
To bring our well documented active dual-zone
Patent
pending!
to perform top calibration specifications without being affected by the actual load e.g. many sensors or very big sensors.
technology to an even higher level, we have
developed the patent pending new DLC system.
This newly developed unique feature makes it possible
Based on the new DLC functionality, 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 and full acuracy 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 will be very close to 0.00 when the calibrator only
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
A new DLC sensor, Dynamic Load Compensation sensor,
has been specially developed for this purpose.
The RTC-700 features the active triple-zone temperature
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 triple-zone keeps this difference at a minimum.
The new DLC sensor
improves the homogeneity even more by controlling
the homogeneity not only in
the well, but also inside the
insert, where the sensorsunder-test are placed during
calibration. The DLC sensor
measures the temperature
homogeneity in the insert
and provides feedback to the
active triple-zone system,
which now compensates the
temperature difference to a
minimum inside the insert.
In this way, the DLC function makes the homogeneity
independent of the different
loads of the insert.
DLC Sensor
Axial temperature curves for a RTC calibrator with and without the DLC functionality activated
NEW!
USB connector for communication
Another new RTC feature is the USB connection that facilitates easy communication with JOFRACAL. The USB connection 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 firmware upgrades as well as already integrated LAN communication, SD-card slot and USB host connectors for future
use.
2 www.ametekcalibration.com Reference Temperature Calibrator • RTC-700
NEW!
plug’n’play
Intelligent reference sensors
The JOFRA STS-200 intelligent reference sensors as well
as the new DLC sensor are all containing all individual calibration data regarding the sensor.
Firstly, this means that the time-consuming coefficient downloading sequence with risk of errors is no longer necessary.
Secondly, the user can change the reference sensor and be
up and running immediately. Time saving and convenient.
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 reference sensors and the DLC
sensors have been specially 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 sensors with connection heads
without any problems.
New 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 only four
inserts covering all diameters from 3 to 13mm. The other is
an imperial insert kit consisting of only three inserts covering six different sizes from ⅛” to ½”.
All inserts have holes for both
NEW!
Wide temperature range
The RTC-700 can perform calibration over a very wide temperature range starting from 33°C and up to 700°C (91 to
1292°F). This makes it possible to perform calibration jobs
over a range of 667°C (1232°F) with only one calibrator.
metric and imperial STS reference sensors and DLC sensor.
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.
700˚C
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.
Easy to carry
A calibrator is carried from one job to another. Therefore, it
is essential that it is easy to carry.
We have thoroughly included the weight issue in our design
and have developed new design techniques that have
made the RTC calibrator easy to carry around without compromising its quality, durability and functionality.
Long inserts for accurate calibration
The new extended insert length increases the maximum
possible diameter of the sensor under test to 16 mm.
Switch test of long bulb sensor can be carried out with very
high accuracy.
Patent
pending!
Time is money! This is why all the new RTC calibrators
have an increased calibration speed compared to all other
calibrators. The implication is savings in both production
downtime and general calibration costs.
Fast temperature calibration
Based upon our new developed heating block
the RTC-700 is able to perform a unique com-
bination of high speed and high accuracy.
NEW!
The navigation is menu-driven and very logical and intuitive to use. 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.
The large display contains many detailed information at a
glance, such as:
• Up to five temperature readings simultaneously
• Stability status
• Load compensation status
• Real time clock
• Serial number of reference sensor
• Sensor-under-test status
www.ametekcalibration.com 3RTC-700 • Reference Temperature Calibrator
Special designed carrying case
NEW!
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 an
optimum physical protection. There are compartments for
inserts to cover all sensor under test dimensions and compartments for the new integrated support rod set, wires,
manuals, certificates, 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
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. Even though weight
has been reduced with 50% the support
rod is very firmly positioned.
NEW!
SET-Follows-TRUE (B & C model 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 reference sensors.
Reading of sensor-under-test (B model only)
Model B of the RTC 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
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.
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 calibrators
often become unstable in production environments where
large electrical motors, heating elements, and other devices
are periodically cycled on or off. The cycling of supply power
can cause the temperature regulator to perform inconsistently, leading to both inaccurate readings and unstable
temperatures.
The RTC calibrators all employ the MVI functionality, thus
avoiding such stability problems.
Highest accuracy (B & C model only)
The RTC series calibrators may be supplied with a built-in
reference thermometer to be used with an external reference sensor only B & C models. This feature allows the
instrument to perform calibrations on-site, while maintaining
a high accuracy.
Switch test (B model 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°.
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 independent
of one another.
4 www.ametekcalibration.com Reference Temperature Calibrator • RTC-700
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