1 Instrument description and intended use
SIKA Dr.Siebert & Kühn GmbH & Co.KG
1 Instrument description and intended use
The calibrator is a portable unit for service, industry and laboratory tasks. The SIKA temperature calibrators
are intended to
calibrate thermometers,
temperature switches/thermostats,
resistance thermometers and
thermal elements.
The operational safety of the supplied instruments is only guaranteed if they are operated according to their
intended use (inspection of temperature sensors). Specified limit values (see “Technical Data”) should never
be exceeded.
It is your responsibility to select the instrument which is suitable for your specific application, to connect it
correctly, to carry out tests and to maintain all the components.
Various instrument versions are manufactured. The respective type plate on the calibrator displays the version
of each device.
These operating instructions apply to the following calibrator types:
TP 38 165 (cooling and heating)
-35 °C up to 165 °C
(with integrated measuring instrument)
TP 38 165 E (cooling and heating)
-35 °C up to 165 °C
(without integrated measuring instrument)
TP 38 650 (heating)
ambient temperature up to 650 °C (with integrated measuring instrument)
TP 38 650 E (heating)
ambient temperature up to 650 °C (without integrated measuring instrument)
The temperature calibrator consists of a controllable metal block that is capable of heating and cooling. The
metal block features the holder for the probe. You have to enter a setpoint value via an operator panel. The
nominal and actual values of the calibrator are displayed on the screen.
During the calibration, the temperature measured by the probe is compared to that displayed by the calibrator.
Various types of probes can be calibrated.
Thermometers/SIKA machine thermometers/bimetal thermometer/dial thermometer
These are checked by comparing the temperature measured and displayed by the probe to that
displayed by the calibrator. Thereby take note of the test instructions of the thermometer producer.
Temperature
switches/Thermostats
The probe is inserted into the metal block and connected to an external display. The switch setting or
switch point is signaled via this monitoring display. In the case of calibrators with integrated measuring
instrument, the probe can be connected directly. An automatic temperature switch test can be
performed. Thereby take note of the test instructions of the thermometer producer.
Resistance thermometers and thermocouples
A separate temperature measuring instrument is required for the test. These devices are checked by
comparing the temperature displayed on the external measuring instrument with the block temperature.
In the case of TP 38… calibrators with integrated measuring instrument, the probe can be connected
directly. An automatic calibration can be performed.
The calibrators TP38 165 and TP38 650 are equipped with an integrated measuring instrument at which the
test specimen can attached directly. TP 38 165 E and TP 38 650 are supplied without an integrated measuring
instrument.
