Ametek ETC-125 A, ETC-400 A, ETC-400 R Specifications
temperature
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Temperature ranges
ETC-125 A -10 to 125°C / 14 to 257°F
ETC-400 A 28 to 400°C / 82 to 752°F
ETC-400 R 28 to 400°C / 82 to 752°F
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Fast calibration saves money
Heats up as quickly as 100°C / 212°F per
minute and stabilizes in just 3 minutes.
Completes a 2-point test in less than 10
minutes
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Extreme flexibility
The small size makes it perfect to store in a
tool box and to check temperature sensors
that are difficult to access
Easy Temperature Calibrator
ETC-series
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Fully-featured despite the small size
The multi-information display shows actual
and set temperatures, a stability indicator,
and a stability countdown timer
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Timesaving features
Fast one-key-one-function access to set the
temperature and the auto-stepping function
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Documentation made easy
RS232 communication interface and
JOFRACAL calibration software are part of
the ready-to-use standard delivery
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Easy IR calibration
Standard delivery of the ETC-400 R
includes JOFRA IR-LAB software enabling
the user to calibrate IR thermometers with a
fixed emission factor setting
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Complete marine program
Part of a complete program of marine
approved temperature, pressure and signal
calibrators; including temperature sensors
Heats up by up to 100°C / 212°F per minute and completes a full dualpoint test in less than 10 minutes, including stability time; timesavings at
your fingertips! The ETC- series is designed for field testing of temperature measurement devices.
The small size and light weight make it a perfect instrument to verify sensors in difficult to reach places.
All JOFRA ETC units have many of the same useful and timesaving features offered in the more advanced JOFRA dry-block series.
Designed for people who perform tests and verifications of temperature
sensing devices in the field. This instrument is ideal when time is a critical factor and the highest accuracy is not a critical factor.
Reduced size and weight are important considerations because the unit
is able to fit into a tool box or instrument carrying case and can be used
for sensors that are difficult to access.
One-key-one-function user interface provides immediate access to setting the temperature and the auto-step timesaving function. There is no
need for manipulation of sophisticated menus.
The Stability indicator provides audible and visual prompts when the
temperature is stable. This function also includes a 3 minute countdown
before the stable condition.
Stainless steel and rubber side panels make the instrument suitable for
many years of faithful duty in an industrial environment.
ISO 9001 Manufacturer
Specification Sheet, SS-ETC
ETC-400 R for infrared thermometers
The ETC-400 R is designed for optimum speed in connection with calibration of infrared thermometers. The 36 mm
target provides the optimum size for reliable calibration
of infrared thermometers in the process industry as it is
designed for high accuracy and long-term stability while
maintaining speed.
With regard to the coating of the target it has been especially designed for space technology applications, which
secure long time performance under high temperature
influence. In combination with the shape of the target it
ensures the emissivity of 0.96.
If higher accuracy is required, and for recalibration, a 3
mm external JOFRA STS reference probe can be placed
under the surface of the target.
Cooling and heating - ETC-125 A dry-block
The ETC-125 A is a simple yet effective tool for verifying temperature instruments that also require references
below ambient temperatures: e.g. air-conditioning and
cold counters. The predrilled holes allow the use of an
insertion tube in the largest bore. This increases the flexibility to match many sensor-under-test sizes.
Easy-to-use, intuitive operation
All instrument controls are accessed directly from the front
panel. The main functions on the ETC series are designed
with one-key-one-function logic. This means that there are
no difficult multiple keystrokes to remember to access primary functions. The easy-to-read, backlit display features
dedicated icons, which help in identifying instrument conditions and operational steps.
Super fast heating - ETC-400 A dry-block
The ETC-400 A is designed for optimum speed. The heating block is built around a highly efficient heating element.
The insertion holes for the temperature device under
test are located around this element. To reduce mass
and increase effectiveness, there is no removable insertion tube; the holes are drilled directly into the block. The
minimal mass offers an extremely fast heating and cooling
time. The different layouts also make it possible to use an
external JOFRA STS reference probe during the calibration. Choose the combination of holes that best suits your
needs from our various design combinations.
If your application requires a dry-block that can handle
large sensors or more than one sensor at a time, we offer
several other JOFRA dry-block calibrators that can meet
your needs.
Set temperature
The ’’Up’’ and ’’Down’’ arrow keys allow the user to set
the exact temperature desired with a resolution of 0.1°C
or °F.
Instrument setups
The ETC-series stores the complete instrument setup,
including: engineering units, stability criteria, resolution,
auto-step settings, and maximum temperature.
Stability indicator
The bold checkmark on the display indicates that the
calibrator has reached the desired set temperature and is
stable. The operator may change the stability criteria and
establish a greater level of confidence in the calibration
results as desired. A convenient countdown timer is activated three minutes before the unit reaches stability. This
prompts you to be prepared to record results.
2 www.jofra.com Easy Temperature Calibrator • ETC
Auto-stepping
This feature saves time. The operator may stay in the control room, or another remote location, monitoring the output from the sensor-under-test while the ETC- series calibrator is placed in the process and automatically changes
the temperature using a programmed step value and rate.
Up to 9 different temperature steps may be programmed,
including the hold time for each step. This feature is also
ideal for burning-in new sensors prior to installation; this
minimizes initial drift and allows for initial testing. It is also
useful for testing temperature data loggers.
Maximum temperature
From the setup menu, you can select a lower maximum temperature limit for the calibrator. This function prevents damage
to the sensor-under-test caused by the application of excessive temperatures.
Re-calibration/adjustments made easy
The ETC- series has a very easy and straightforward procedure for re-calibration/adjustment. There is no need for
a screwdriver or PC software. The only thing you need is
a reliable reference thermometer. Place the probe in the
calibrator and follow the instructions on the display.
JOFRA IR-LAB software for the ETC-400 R
As an extra feature the ETC-400 R will be delivered with
a small mathematical program, which will constitute a
powerful tool together with the calibrator. The program
enables you to calculate at which temperatures you need
to calibrate, if your IR thermometer is either locked to a
fixed emission factor or if you just want to calibrate your
thermometer at a certain emission factor. The program facilitates the whole issue of correcting settings of emission
factors and temperatures.
The calibration surface of the JOFRA ETC-400 R IR
calibrator has an emission factor of 0,96. If your IR-thermometer is using a different emission factor than 0.96,
the result will be a faulty temperature reading on your IR
thermometer. However if your IR thermometer is using an
emission factor of 0.95 or 0.98 – a helpfull diagram is part
of the standard delivery.
Example: Your thermometer is locked to an emission
factor of 0,98 and you have set the JOFRA ETC-400
R to 300°C. The diagram indicates that 3,9°C must be
subtracted from the calibrator temperature, to obtain the
“true” IR thermometer reading (296,1°C).
If you are working with IR thermometers where the emission factor is different than 0.95, 0.96 or 0.98, or other
parameters differ from “standard”, use the PC program
JOFRA IR-Lab. The JOFRA IR-Lab program allows you to
type in various emission factors, in order to get a “true”
temperature readout on your thermometer or the other
way around - what is the true surface temperature of the
calibrator. But the IR-Lab will do more than that; it allows
you to calculate “true” temperatures in simulated surroundings that approximate your actual test environments.
Use the ETC calibrator with JOFRACAL calibration software
Calibration of up to 24 sensors with JOFRA ASM
Using the JOFRA ETC 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 the same time.
It can handle signals from 2-, 3- and 4 wire RTD’s, TC’s,
transmitters, thermisters, temperature switches and voltage.
www.jofra.com 3ETC • Easy Temperature Calibrator
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