7 between-channel error test – Yokogawa PC-Based MX100 User Manual
Page 62
2-33
SM MX100-01E
Testing
1
2
3
4
5
6
7
Test Range and Product Specification
100 ms Interval
Test Range
Test Points
Specification
Measured Value Setting
200000 µSTR
+200000 µSTR
No. 6
±1% of Range
0 µSTR
No. 1
-200000 µSTR
No. 7
200 ms Interval
Test Range
Test Points
Specification
Measured value Setting
2000 µSTR
+2000 µSTR
No. 8
±0.5% of Range
0 µSTR
No. 1
-2000 µSTR
No. 9
20000 µSTR
+20000 µSTR
No.10
±0.3% of Range
+10000 µSTR
No,12
0 µSTR
No. 1
-10000 µSTR
No.13
-20000 µSTR
No.11
200000 µSTR
+200000 µSTR
No. 6
±0.3% of Range
0 µSTR
No. 1
-200000 µSTR
No. 7
For instructions on setting test points, see “Cal Box Settings” on the previous page.
2.7.7
Between-Channel Error Test
1.
Connect the Cal box to all channels in parallel.
2.
Restore the initial balance values (all measuring ranges) of all channels to the
initial values from a PC via communication.
3.
Enter the following settings.
Measurement range
2000 µSTR
Measurement Interval
200 ms
Filters
OFF
Duration
10 s or more
Dip switch setting (for the -B12 and -B35 modules) 4-gauge method
ON
1
2
3
4
5
SW1 to SW4: OFF
SW5: ON
4.
Apply the following input values and confirm that the between-channel error
satisfies the product specification.
Test Points
Specification
Measured value
Setting
+2000 µSTR
No. 8
+2000 µSTR ±10 µSTR
-2000 µSTR
No. 9
2000 µSTR ±10 µSTR
For instructions on setting test points, see “Cal Box Settings.”
In the case of the -B12 and -B35 modules, since the between-channel error for all
channels will be equal to the wiring resistance error, be sure to make the wiring
resistance values the same.
2.7 Tests of the 4-CH Strain Input Module