Scientific 5000 Series, Manual

Page: 111 / 360

7
– MAINTENANCE / TROUBLESHOOTING
MODEL 5000 SERIES MANUAL
Version 1.23
7-9
CAL
MODE
STEP CIRCUIT
BOARD
POT TRIM POINT ENTER
CAL
VOLTAGE
MEASURE
VOLTAGE
MEASURED
TOLERANCE
LOAD
(.1%)
CAL ADC 1 Analog R63 TP-3 +2.44 mV +2.44 mV ±0.6 mV None
CAL ADC 2 Analog R64 TP-3 +9.998 V +9.998 V ±0.002 V None
CAL ADC 3 Analog R3 TP-2 +2.44 mV +2.44 mV ±0.6 mV None
CAL ADC 4 Analog N/A TP-2 +9.998 V +9.988 V ±0.005 V None
CAL ADC 5 Analog R19 TP-2 -2.44 mV -2.44 mV ±0.5 mV None
CAL ADC 6 Analog N/A TP-2 -9.998 V -9.998 V ±0.005 V None
CAL ADC 7 Analog R106 TP-9 +2.44 mV +2.44 mV ±0.6 mV None
CAL ADC 8 Analog R85 READ DISPLAY -9.998 V -9.998 V ±0.002 V None
CAL ADC 9 Analog R86 READ DISPLAY +9.998 V +9.998 V ±0.002 V None
CAL ADC 10 Analog N/A READ DISPLAY +2.44 mV +2.44 mV ±3.0 mV None
CAL ADC 11
2
Analog Center R114 None
CAL RMS 12
2
Analog R7 READ DISPLAY INTERNAL USE ONLY None
CAL RMS 13
2
Analog R32 READ DISPLAY INTERNAL USE ONLY None
CAL RMS 14
2
Analog READ DISPLAY INTERNAL USE ONLY None
CAL RMS 15
2
Analog READ DISPLAY INTERNAL USE ONLY None
CAL SYS 16
2
Normalize R21 TP-2 +0.1 V 0.000 V ±1.0 mV None
CAL SYS 17 Hi Source R18 A
S
+0.1 V -100.1 mV ±0.5 mV None
CAL SYS 18 Hi Source R18 A
S
-0.1 V +100.1 mV ±0.5 mV None
CAL SYS 19
1
Hi Source R153 K
S
+1.0 V -100.1 mV ±0.5 mV 100
Ω, A-K
CAL SYS 20
1
Hi Source R153 K
S
-1.0 V +100.1 mV ±0.5 mV 100
Ω, A-K
CAL SYS 21
5
Hi Source R143 TP-1 +0.1 V 0.000 V ±1.0 mV None
CAL SYS 22 Hi Source R141 TP-1 +1.0 V -0.500 V ±3 mV 100
Ω, A-K
CAL SYS 23 Hi Source R142 TP-1 -1.0 V +0.500 V ±3 mV 100
Ω, A-K
CAL SYS 24 Relay R86 TP-1 +0.1 V TP-1 = G
S
±0.5 mV None
CAL SYS 25 Relay R82 TP-2 +0.1 V TP-2 = G
S
/2 ±0.5 mV None
CAL SYS 26 Relay R83 TP-3 +0.1 V TP-3 = A
S
/2 ±0.5 mV None
CAL RMS 27
2
Relay R121 U103-6 +0.1 V 0.00 V ±0.1 mV None
Run Test
3
28
2
Relay R104 READ DISPLAY
3
0.005 Max
4
N/A Short, A-K
Run Test
3
29
2
Analog R32 READ DISPLAY
3
1.00
Ω
±0.01
Ω
1
Ω, A-K
--- OR --- 10.0
Ω ±0.1 Ω
10
Ω, A-K
CAL SYS 30 Lo Source R18 G
S
+0.1 V -100.1 mV ±0.5 mV None
CAL SYS 31 Lo Source R18 G
S
-0.1 V +100.1 mV ±0.5 mV None
CAL SYS 32
1
Lo Source R153 G
S
to K
S
+1.0 V -100.1 mV ±0.5 mV 1K
Ω, G-K
CAL SYS 33
1
Lo Source R153 G
S
to K
S
-1.0 V +100.1 mV ±0.5 mV 1K
Ω, G-K
CAL SYS 34 Lo Source R143 TP-1 +0.1 V 0.000 V ±1.0 mV None
CAL SYS 35 Lo Source R141 TP-1 +1.0 V -0.500 V ±3 mV 1K
Ω, G-K
CAL SYS 36 Lo Source R142 TP-1 -1.0 V +0.500 V ±3 mV 1K
Ω, G-K
NOTES
: these notes apply to above Table
1
Pull in Current Drive relay by connecting TP-2 (on PC Board being calibrated) to chassis ground. Adjust R153
for a balance between polarities.
2
This adjustment is for 5000E and 5300HX ZZ calibration.
3
Run a ZENER, ZZ Test @ ZZ < 2, BVZ = 6.0, IZ = 41mA in the single test measure mode. This will require
getting out of the CAL RMS mode. Create the test in the PCW Test Program Generator, then download the
program to the mainframe and run the test in the single test measure mode.
4
Adjust R104 for minimum.
5.
All 5000E and 5300HX with the Extended Range pcb. after Step 21 adjustment, run a NPN and PNP ICE test
@ ICE < 10nA, VCE = 100V in the single test measure mode and re-adjust R143 until both the NPN and PNP
readings are balanced around 10nA; then run Auto-Calibrate and save the factors (Note: does not apply of Low
Current Deck used).
Table 7-4 Calibration/Trim Pot Adjustments (Models 5000E and 5300HX)