A.7.1 Resistive Temperature Probes (Temperature) - AOIP THERMYS 150 Mode D'emploi

THERMYS 150 G
ENERAL
The MEASUREMENT MENU dialogue box is displayed.
A.7.1 Resistive temperature probes (Temperature)
• Display the MEASUREMENT MENU dialogue box:
• Select the Rt measurement function, then the appropriate "type of probe" using the function and navigation keys.
• Select Auto, 2 -Wire, 3-Wire or 4-Wire connection with the function and navigation keys.
• Select display unit.
• Confirm with ENTER.
Connection is made according to the number of wires of the resistive probe.
The following probes are available:
α Being the temperature coefficient of the probe.
Wiring diagram is automatically detected by the calibrator. The THERMYS 150 displays an icon showing the connections used (
3 wires or for 4 wires) to carry out the measurement.
In order not to introduce an error when measuring with 3 wires, the following is recommended:
• Measure using conductors of the same length, the same diameter and the same type of metal (a difference of 40 mΩ between two wires
introduces an error of about 0.1°C).
• Clean connections to avoid development of spurious electromotive force (emf).
• Take care with the connections to avoid the appearance of interfering contact potential differences.
Note:
By changing the display unit, the ohmic value of the connected probe can be measured:
The following ranges are available:
72/107
Sensor
Pt 50(α = 3851)
Pt 100 (α = 3851)
Pt 100 (α = 3916)
Pt 100 (α = 3926)
Pt 200 (α = 3851)
Pt 500 (α = 3851)
Pt 1 000 (α = 3851)
Ni 100 (α = 618)
Ni 120 (α = 672)
Ni 1 000 (α = 618)
Cu 10 (α = 427)
Cu 50 (α = 428)
Probe Type Caption
Pt50
Pt100
Pt100-3916
Pt 100-3926
Pt200
Pt500
Pt1000
Ni100
Ni120
Ni1000
Cu10
Cu50
for 2 wires, for