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525A
Users Manual
First apply a four wire short to the 525A 4W RTD Ohm input. Set the 525A to the
400 ohm range. Note the reading. Set the 525A to the 4000 ohm range. Note the
reading. Move the 525A 4W RTD Ohm input to the output of the 5520A. Output
the same nominal values and note the 525A readings in the 525A reading column.
Subtract the actual 5520A value from the 525A reading and ensure that it is within
the specified tolerance.
525A
TEMPERATURE / PRESSURE CALIBRATOR
VOLTS
mA
RTD
100mA MAX
HI
HI
OUTPUT
100V MAX
LO
LO
20V PK
MAX
4W RTD
HI
INPUT
SENSE
LO
20V PK
MAX
Testing Pressure Modules
The Fluke 700 series pressure modules are calibrated separately from the 525A.
The calibration follows the pressure module, so only a performance test is needed.
Connect any of the Fluke 700 series pressure modules to the pressure module
connector. Verify that the 525A reads pressure.
6-14
525A
STBY
VOLTS
TC
TYPE
OPR
mA
RTD
UNITS
TC
INPUT/OUTPUT
OUTPUT
INPUT
ZERO
7
8
9
SHIFT
SETUP
CJC
C / F
4
5
6
SET
RECALL
AUTOSET
20V PK
MAX
1
2
3
RNG LOCK
LOCAL
EXP
/
0
•
ENTER
Figure 6-8. Connection for Measuring Ohms
CE
5520 4W Ohms
Function
ajr27f.eps
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