AOIP CALYS 150, Инструкция по эксплуатации, Страница: 129 / 194

Measurement on channel V1
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Measurement by Thermocouple (Temperature)
Display the MEASUREMENT MENU dialogue box:
Select the Tc measurement function, then the appropriate “type of thermocouple” using the function and navigation
keys.
Select the display unit
Select the type of cold junction (CJC) used. Enter the temperature of the cold junction in the case of a programmed
cold junction.
Confirm with ENTER.
The thermocouples available are: K, T, J, E, N, U, L, S, R, B, C, PL, Mo, NiMo/NiCo.
After a significant thermal shock, it is recommended that the unit is left for the temperature to stabilize in order to
use the internal cold junction (CJC) with maximum accuracy.
Thermistor Measurement (Temperature)
Display MEASUREMENT MENU dialogue box:
Select Thermistor "measurement function, then select Auto, 2-Wire, 3-Wire or 4-Wire connection with the function
and navigation keys.
Enter coefficients corresponding to thermistor Coeff. A, Coeff. B and Coeff. C.
Confirm with ENTER.
Wiring diagram is automatically detected by the calibrator. The CALYS 150 displays an icon showing the connection used
to carry out measurement ( for 2 wires, for 3 wires or for 4 wires).
On channel 1, thermistors can be measured over a 0-50 KOhm range, while measurement is limited to 0-3.6 KOhm on
channel 2.
To avoid errors when measuring with 3 wires, the following is recommended:
Measure using conductors with same length, same diameter and same type.
Clean connections to avoid development of spurious electromotive force (emf).
Use Y-shaped lugs to reduce connector resistance.