Test Points - AEMC 1000N Calibration Manual

MODEL 1000N
VOLTAGE LEVELS AND OSCILLOGRAMS FOR PROPER OPERATION
Unless otherwise indicated, all of the potentials cited herein are direct potentials measured with respect to ground.
The respective oscillograms correspond to a situation where the instrument is set at the 500 V / MΩ position with
+P =12 V.
All bold face numbers represent test points on the schematic.
1. + 5 V ± 5% - Pin 8 of Z3
2. - 4.6 V ± 10% - Pin 5 of Z3
4.
2.6 V
0
7. + 50 V to + 1000 V, according to selected
range ± 5%
+ 1100 V ± 5% in KΩ position (1 mA)
8. + 2.49 V ± 4%
9. + 2.49 V ± 5% if KΩ range is selected
10. For any MΩor GΩ range which is
selected and with a voltage level of 50
V to 1000 V, one should obtain at pin
10 of Z5:
1 MΩ input: 4 V @ 5%
10 MΩ input: 0.4 V @ 5%
100 MΩ input: 40 mV @ 5%
1000 MΩ input: 4 mV @ 5%
15.
12 V
0
4/21/2005
REPAIR AND CALIBRATION MANUAL
5.
11 V
0
27
REV. 7: March 13, 2004
FILE LOCATION: Manuals - Cal. Man - 1000MAN.DOC
3. + 2.49 V ± 4% - Pin 1 of Z1
3b. - 1.65 V ± 5% - Pin 8 of Z2
6.
26 V
12 V
0
11. V (pin 4 of Z6) - V (pin 8 of Z6)
4 V at pin 4 ≈ - 50.7 mV at pin 8
0.571 V at pin 4 ≈ 0 V at pin 8
0.4 V at pin 4 ≈ + 9.3 mV at pin 8
40 mV at pin 4 ≈ + 69.3 mV at pin 8
4 mV at pin 4 ≈ 129.3 mV at pin 8
12. V [pin 8 of Z6]-V[pin6 of Z7]
- 50.7 mV at pin 8 ≈ 0 V at pin 6
+ 129.3 mV at pin 8 ≈ 1.5 V at pin 6
13. Voltage at terminals of CR3 is
2.49 V ± 4%, Current for Ω
measurement: 10 mA
14. + 11 V except on ranges for measuring
between 0 and 200 Ω: - 0.2 V
16.
12 V
0
CAT. #185.100