
User Manual
California Instruments
6.6Non-Routine Calibration
All internal adjustments are set at the factory at the time or original shipment. As such, non-
routine calibration is generally not required unless one or more amplifier assemblies have been
replaced in the field. In this case, perform the following sections in the order shown.
The non-routine calibration involves removing the top cover from the power source. Remove the
line power from the power source before removing the top cover. Most of the adjustments are on
the Current Limit Assembly. One adjustment is on I/O Board Assembly. Refer to Figure 6-80 for
the location of the adjustments.
6.6.1DC Offset Adjustment
1. Turn off the AC input power to the power source using the front circuit breaker. Not that
AC voltage is still present inside the unit so
DO NOT
touch the contacts of the circuit
breaker inside the unit.
2. Connect a 22
µ
F tantalum capacitor in series with a 100k
Ω
1% resistor across the
output.
3. Connect a DVM to read DC volts across the capacitor.
4. Short test point TP1 to test point TP6 on the Current Limit Board using a jumper wire.
5. Power up the unit in AC mode, 150 VAC range, 0.0 V programmed and close the output
relay. Adjust the DC offset to 0.0 mVDC +/-5.0 mVDC using R95 on the AC Logic Board.
6. Remove short on the Current Limit Board.
7. Open the output relay when done.
6.6.2Current Monitor Offset Adjustment
1. Select Phase A.
2. Program the 300 VAC range, 0.0 volts, and turn the Output ON.
3. On the current limit board, monitor test point TP5 with respect to test point TP1
(common) using a DMM in VDC mode.
4. Adjust R23 on the input/output board for 0.0 mVDC
±
0.5 mVDC on TP5.
5. Cycle the AC input power using the front panel circuit breaker.
CAUTION
:
Use extreme care in adjusting R23. Do not touch any connections on the
Input/Output Board Assy. Dangerous voltages exist on most exposed connections.
148
i Series II / NSG 1007 II / iM Series II
Содержание 10002iX
Страница 4: ...User Manual Teseq 4 NSG 1007 Series II ...
Страница 48: ...User Manual California Instruments 48 i Series II NSG 1007 II iM Series II ...
Страница 53: ...User Manual California Instruments Figure 3 20 Functional Test Setup NSG 1007 Series II 53 ...
Страница 59: ...User Manual California Instruments Figure 3 26 Connection With MODE Option NSG 1007 Series II 59 ...
Страница 131: ...User Manual California Instruments Figure 5 73 Power Source Module Block Diagram NSG 1007 Series II 131 ...
Страница 134: ...User Manual California Instruments Figure 5 74 5001i Internal Layout 134 i Series II NSG 1007 II iM Series II ...
Страница 135: ...User Manual California Instruments Figure 5 75 Logic Board LED s NSG 1007 Series II 135 ...
Страница 164: ...User Manual California Instruments Figure 9 84 Voltage Modulation 164 i Series II NSG 1007 II iM Series II ...
Страница 204: ...User Manual California Instruments Figure 9 114 NSG 1007 15 208 CTS EOS3 LR3 204 i Series II NSG 1007 II iM Series II ...
Страница 205: ...User Manual California Instruments Figure 9 115 NSG 1007 15 208 3 EOS3 NSG 1007 Series II 205 ...
Страница 223: ...User Manual California Instruments Figure 9 118 Example Connections With INA 2151 NSG 1007 Series II 223 ...