After start-up, the instrument performs an internal self-test, checking the functionality of the connected sensor as well. Automatic diagnostic routines in the microprocessor permanently monitor the sensor signal for plausibility and can thus signal a sensor break via the display unit. The results are displayed as a message. By supplying the measuring instrument via the transmitter, the solar cell is only loaded in the event of failure of the current loop, thus providing a safe, independent local display.

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SIKA industrial thermometers meet the requirements of DIN 16195 “Requirements and testing of industrial glass thermometers”. Scale graduation values and error limits are defined depending on the casing size and the display range.

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• Temperature range RT……850 °C
• Tolerance ±1 °C
• Stability ±0,1 °C
• Resolution 1 °C
• Block Ø 18 mm or 28 mm / depth 100mm  or 200 mm

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The maximum pressure drop should not exceed 16 bar. This limits the measurement range of high viscosity media (see pressure drop diagrams). Basically, the measurement accuracy increases with increase in viscosity of the media.

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Dry-block function
The optimum thermal coupling from the block to test item is achieved with the correct adapter sleeve. Ideally, the internal diameter of the sleeve is 0.5 mm larger than the outer diameter of the test item. With the aid of the adapter sleeve, straight temperature sensors of virtually any length and diameter can be calibrated. The dry block covers the entire temperature range without the need to change the calibration medium. Viscosity, flash points or outgassing are of no concern.

Black body function
A patented infrared calibration sleeve is used to calibrate IR pyrometers or thermal imaging cameras. The special surface structure and the asymmetrical shapes create a „cavity radiator“ with an emission factor of 0.9994, prevent the reflection of interference radiation and emit the required temperature in an ideal form. The pyrometer is simply held at the specified distance above the measurement opening, thereby forming the desired measurement area on the bottom for the calibration to be performed. A support base can be fitted directly on the unit.

Surface temperature function
Surface temperature sensors are calibrated using special sleeves that are fitted vertically with the required contact force. Switching calibration control to the external reference sensor creates the best possible temperature reference point on the surface of the sleeve. The reference sensor is located directly beneath the abutting face of the sleeve. The sleeve is designed in such a way that the best temperature homogeneity is achieved in the centre of the abutting face. The special design of the abutting face enables good thermal contact. There is no need to use a thermally conductive paste or other thermal conduction aids.

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