4-10
IM CA71-E
4.4 Sourcing Thermocouple (TC) Signals
4.4.1 When RJ Sensor Is Used
(Making Use of Reference Junction Compensation)
To calibrate a device with built-in reference junction temperature
compensation by sourcing a thermoelectromotive force with
the calibrator without using any external 0°C reference junction
compensation means, use the optional RJ sensor (P/N: B9108WA).
CAUTION
When sourcing thermocouple signals, the CA71 outputs a small DC voltage.
If the device under calibration has a switching power supply, its switching
noise may affect the CA71 output. Taking measures such as connecting
the device to ground can reduce its noise, resulting in less effect on the CA71.
(This caution also applies to the CA51.)
French
ATTENTION
Lors de la source de signaux de thermocouple, le CA71 émet une petite
tension CC. Si l'appareil en cours d'étalonnage dispose d'une alimentation
de commutation, son bruit de commutation peut affecter la sortie CA71.
La prise de mesures telles que la connexion de l'appareil à la terre peut
réduire son bruit, ce qui réduit l'effet sur le CA71.
(Cette mise en garde s'applique également à la CA51.)
Step 1:
Insert the RJ sensor into the R.J.INPUT connector of
the calibrator.
Insert the sensor until the locking claw in the bottom of
the sensor connector locks with a click.
To unplug the sensor connector, unlock the connector by
gently pushing the locking claw.
Step 2:
Using the function selector switch, select
100mV TC
.
4.4 Sourcing Thermocouple (TC) Signals