Performing A/D Calibration And Adjusting The Input Accuracy Of Ai Modules - YOKOGAWA GX20 User Manual

5.1 Maintenance 5.1 Maintenance
5.1.3 Performing A/D Calibration and Adjusting the Input Accuracy of AI
Modules
5-6
Preparing the Instruments
1
Wire the GX/GP and the calibration instruments as shown in the following figure, and
adequately warm up the instruments (the warm-up time of the GX/GP is at least 30
minutes).
For details on wiring, see "Installation and Wiring" in the First Step Guide (IM 04L51B01-02EN).
2
Check that the operating environment such as ambient temperature and humidity is
within the standard operating conditions (see "General Specifications").
Operation complete
Universal, Electromagnetic Relay, Low Withstand Voltage Relay, Current (mA), 4-wire
RTD/Resistance Type
Wiring for DC voltage range
Short the input terminal of CH1 (apply 0 V)
+
CH2
–
Input terminal of CH2
Wiring for RTD range
Short the input terminal of CH1 (connect 0 Ω)
b
B A
Make the resistance of three lead wires equal.
A
CH2
B
b
Wiring Current (mA) Input Modules
Short the input terminal of CH1 (supply 0 A)
+
CH2
–
Input terminal of CH2
Hi
Lo
Input terminal of CH2
DC voltage/current standard
H
L
G
Resistance standard
.
Digital multimeter
GS200
DC VOLTAGE/CURRENT SOURCE
SAMPLE SENSE OUTPUT
ERROR
REPEAT OUTPUT Hi
STORE
32V 0.5V 32V
REMOTE MAX MAX 200mA MAX
V
ERROR
Lo
LOCAL 1 2 3 4 5 BS RANGE mV
42V
ESC 10mA PEAK
END
POWER mA
G
NUM PROGRAM STEP
LOCK
6 7 8 9 0 DEL SRQ
UTILITY SETUP LIMIT MEASURE HOLD RUN ENTER
G TERM 250 V PEAK TO
PROGRAM
DC current source
IM 04L51B01-01EN