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1587/1577
Calibration
18
Testing Temperature Function (1587 Only)
Use the following procedure to verify that the UUT measures temperature within the
published specification.
1.
Connect the K-Type thermocouple to the temperature input of the UUT (
J
)
and temperature calibrator.
Note
To ensure an accurate measurement the UUT and thermocouple
connector must be at the same temperature.
2.
After connecting the thermocouple to the UUT and the Calibrator, allow the
junctions to stabilize before recording the display reading. Depending on
temperature gradients this could take several minutes.
3.
Turn the rotary switch to
D
, and press
G
to select temperature mode.
4.
Put the calibrator in the thermocouple function, and set the output temperature to
23
°
C.
The UUT display reading should be within the limits of 21.8
°
C to 24.2
°
C.
Testing the Discharge Circuit
The following Discharge Circuit Test is a safety-related test that verifies input jack
wiring to the PCA, the RSOB contacts, RSOB pads on the PCA, and other active
discharge components on the PCA.
W
Caution
To prevent damage to the Test DMM DO NOT press
t
during the following procedure.
1.
Connect the Test DMM to the
INSULATION
terminals (+ and -) on the UUT.
2.
Set the Test DMM to measure resistance.
3.
Turn the rotary switch to
INSULATION
.
4.
Verify that the Test DMM reading is between 2500
Ω
and 3500
Ω
.
Testing the Insulation Function
XW
Warning
To avoid electric shock hazard at the INSULATION output
terminals, do not press
t
when the rotary switch is set
to INSULATION.
W
Caution
To prevent damage to the calibrator do not use the 5500A or
other standard calibrators for the insulation tests.
W
Caution
To prevent damage to the 9100A make sure it is in the
Insulation Test mode prior to pushing
t
.
Insulation Resistance Accuracy Test
To test the Insulation Resistance accuracy, sequentially complete the test steps in
Table 4, using the following procedure.
1.
Connect the
INSULATION
output terminals on the UUT to the calibrator.
2.
Set the calibrator to the Insulation Resistance Test Mode.
Содержание 1577
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