Fluke Biomedical 942A-200L-M4 - Manual (Page 62)

942A-200L-M4 & 942A-200L-M5 UDR
Operator Manual
4-2
NOTE
Prior to entering the value in step 5, note the previous
setting.
5. Set the function switch to position 3 (overrange) and enter 0.00E0.
6. Adjust VR2 for a DVM reading of 10.00 volts.
7. Enter the original full-scale value set point for position 3.
8. Repeat steps 3 - 7 as necessary for verification.
9. When no further adjustment is necessary, restore the overrange value to the previous setting.
4 - 20 mA Output #1, Output #2 (Factory Set)- Refer to detector electrical loop
drawings S1740140-102, S174014E1003, S27860A-102 and S321299A-104,
Appendix B.
NOTE
The adjustments for output number 2 are shown in parentheses ( ).
1. Disconnect the detector.
2. Set the DVM to the 20 mA range.
3. Connect the positive lead of the DVM to P6-1 (P6-3) and the negative lead to P6-2, (P6-4).
4. Adjust VR7 (VR6) to obtain a DVM reading of 4.00 mA. It may be necessary to adjust VR4 (VR5)
slightly.
NOTE
Prior to entering the value in step 5, note the previous
setting.
5. Set the function switch to position 3 (full scale value) and enter 0.00E0.
6. Adjust VR4 (VR5) for a 20.00 mA reading on the DVM.
7. Enter the original full-scale value set point for position 3.
8. Repeat steps 3 - 7 as necessary for verification.
9. When no further adjustment is necessary, restore the overrange value to the previous setting.
V/F Converter Adjustment HV (Factory Set)
1. Set the DVM to the 2-volt range.
2. Connect the positive lead of the DVM to the HV test jack and the negative lead to ground.
3. Depress the HV switch on the front and wait for the HV reading to stabilize (about 2 seconds). The
front panel reading should be 1000 times the DVM reading.
4. Adjust VR3, if necessary to obtain the correct reading. Repeat step 3 until the adjustment is
completed.