Testing Dc Current - Fluke 525A User Manual

525A
Users Manual

Testing DC Current

Use the Wavetek 1281 and the precision shunt to measure the 525A output as
shown in Figure 6-2 . Take the Voltage reading from the Wavetek 1281 and divide
it by the 742A-1 actual value.
525 A
TEMPERATURE / PRESSURE CALIBRATOR
525A
mA
VOLTS RTD
100mA MAX
HI HI
OUTPUT
100V MAX
LO LO
20V PK
MAX
4W RTD
HI
INPUT SENSE
LO
20V PK
MAX
mA
Output
Terminals
100 mA output
(A)
0
0.025
0.075
0.1
6-6
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 6-2. Measuring DC Current
Table 6-3. Measuring DC Current
Volt
Current Shunt
CE
Curent 742A-1
(I=E/R) Shunt Value
Direct into 1281
current input
1281 DCV Function
1 Year (A)
0.000002
4.5E-06
9.5E-06
0.000012
ajr25f.eps