Checking The Diode Test Function - Fluke ProcessMeter 787 Calibration Manual

UUT
787
(BLUE)
MIN MAX
% STEP
mV
V
V
OFF
OUTPUT 0-24mA
SOURCE SIMULATE
+ +
A mA
30mA
0.44A
FUSED
(1A /30 sec)
FUSED

Checking the Diode Test Function

1. Put the calibrator in Standby (
2. Put the UUT rotary switch in the
3. Press the BLUE button to select diode test (
4. Connect the calibrator to the
Figure 6.
5. Apply 2.0 V dc from the calibrator.
6. The UUT should read between 1.959 V and 2.041 V.
7. Put the calibrator in Standby (
UUT.
8. Put the multimeter in the dc mA (autorange) function.
9. Connect the current terminals of the multimeter to the
on the UUT.
10. The multimeter should read close to 0.2 mA. (There is no tolerance specification for
this current. This test just makes sure that the diode test current source is operating.)
PROCESSMETER
RANGE HOLD H
COARSE FINE
REL Hz
mA
A
OUTPUT
mA
mA
COM V
CAT
1000V
Figure 5. Current Measurement Test Connections
STBY
and
COM
STBY
5500A
5500A CALIBRATOR
SCOPE
NORMAL AUX
V, , A, -SENSE,
200V PK
RTD AUX V STBY
MAX OPR EARTH SCOPE BOOST
HI
1000V 20V 7 8 9 m
RMS RMS
MAX MAX
TRIG
LO
OUT n
4 5 6 k
1V PK
MAX
20V PK
p
MAX
1 2 3
M
TC
/ + 0 • SHIFT
20V PK
MAX
) mode.
position.
.
)
terminals on the UUT as shown in
) mode; then disconnect the calibrator from the
COM
Calibration Manual
Verification Tests
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A ¡C
REF
MEAS TRIG
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TC OUT
POWER
MULT DIV
ENTER
x I
O
LT003F.EPS
and terminals
17