Simulate Transmitter Function - Fluke 74X Series Calibration Manual

74X Series
Calibration Manual

Simulate Transmitter Function

Proceed as follows to verify the Simulate Transmitter function (accessed through DC
Current Source function):
1. Connect the UUT, HP3458A, and 5500A as shown in Figure 8. The 5500A is used as
2. Set the 3458A [NPLC] to 30, and the function to [DC Current].
3. Set the UUT to the [mA Source] function, then select
4. Set the UUT source value to 4 mA.
5. Set the 5500A to output 4V dc.
6. Observe that the reading on the 3458A is within the range shown in Table 10.
7. Change the UUT source value to 22 mA and check the results again in Table 10.
8. Set the 5500A to [STANDBY], and press ctwice on the UUT to turn the Source
NORMAL
V, ,
RTD
1000V
RMS
MAX
LO
1V PK
MAX
20V PK
MAX
TC
FLUKE 5500A CALIBRATOR
Range
22 mA
22 mA
20
a stable dc voltage source. Its value is not critical, and another dc source such as a
battery can be substituted.
function off. This saves battery life.
AUX SCOPE
A, -SENSE,
200V PK
AUX V MAX
HI
20V
RMS
MAX
TRIG
OUT
GUARD
20V PK
MAX
Figure 8. Simulate Transmitter Verification Connections
Table 10. Simulate Transmitter Verification Points
Output
4 mA
22 mA
Ω SENSE
INPUT
HI
HI
LO
LO
HP3458
Minimum 1 & 2 Year
3.9926
21.9890
.
Simulate Transmitter
V mA mA V
RTD
RTD
CAT
SOURCE MEAS
30V 300V
TC
MAX 30V 30V MAX
MAX MAX
FLUKE 74X
Maximum 1 & 2 Year
4.0074
22.0110
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