Yokogawa PC-Based MX100 - Manual (Page 81)

3-9
IM MX100-01E
Troubleshooting and Maintenance
3
2
1
4
5
Index
• When calibrating the RTD or resistance range of the 6-CH, Medium-Speed Four-Wire
RTD Resistance Input module
Short the input terminal
of CH3 (connect 0 Ω)
When calibrating the RTD (1 mA)
20 mV range, connect 20 Ω to the
input terminal of CH4.*
* When calibrating the RTD (1 mA) 60 mV range, connect 60 Ω to the input terminal of CH5.
When calibrating the RTD (1 mA) 200 mV range, connect 200 Ω to the input terminal of CH6.
When calibrating the RTD (1 mA) 600 mV range, connect 300 Ω to the input terminal of CH4.
When calibrating the RTD (0.25 mA) 600 mV range, connect 2400 Ω to the input terminal of CH5.
When calibrating the RTD (0.25 mA) 1 V range, connect 3000 Ω to the input terminal of CH6.
Resistance standard
C
A
I
C
A
B
I
B
• When calibrating the range of the 4-CH, Medium-Speed Strain Module (-B12, -B35,
and -NDI)
The clamp terminal (-B12, -B35) and NDIS terminal (-NDI) are connected with the
4-gauge method (see below and next page). Resistors R1-R3 use 120 Ω, and a
resistance corresponding to the Zero or Full value is connected to R4.
To correctly calibrate the range, do so in the order Zero, then Full.
Calibration Range Res. R1, R2, and R3
Res. R4 Resistance value
accuracy Zero Full*
2000 µstrain 120.000 Ω 120.000 Ω 117.154 Ω ±0.005%, ±0.3ppm/°C
20000 µstrain 120.000 Ω 120.000 Ω 113.010 Ω ±0.005%, ±0.3ppm/°C
200000 µstrain 120.000 Ω 120.000 Ω 80.000 Ω ±0.005%, ±0.3ppm/°C
* The Full calibration value of 2000 µstrain range is approximately to 12000 µstrain
The Full calibration value of 20000 µstrain range is approximately to 30000 µstrain
The Full calibration value of 200000 µstrain range is approximately 200000 µstrain
Setting switch (CH1 to CH4)
ON OFF
No.1
No.2
No.3
No.4
No.5
For -B12, -B35
No.1
OFF
No.2
OFF
No.3
OFF
No.4
OFF
No.5
ON
Connect CH2
only
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A(+)
B(L)
C(-V)
D(H)
R2
R4
R3
R1
3.3 Calibration