Remote Interface; Temperature Calibration; Setup - Fluke 187 Calibration Manual

Step
AC A
1
2
DC A
1
2
1. Use 5520A 2-Wire Comp.
2. Zero volts and ohms must use the same calibrator and test leads as all other volt and ohm cal
points.
Do not bypass the calibrator with a shorting bar for the zero volt or ohm step.
3. Because of capacitive coupling, readings will be affected by movement of the leads or
operator. Put fingers on UP button and wait for display reading to settle before pushing.

Remote Interface

You can perform semi-automated calibration with the remote interface using MET/CAL
software.

Temperature Calibration

Required equipment:
•
Fluke 87/89-IV, 187/189 Service Software, Fluke P/N 676152
•
Infrared Serial Cable, Fluke P/N 1578406
•
IBM compatible PC
• Fluke 80T-150U with accuracy certified to +0.2 °C
•
Fluke 8060A Digital Multimeter
Optional equipment:
•
IR Cable Adapter, Fluke P/N 1576688
The following procedure is only required if the Meter has been repaired by
replacing one of the following components: A/D, U4, Reference Junction
Sensor, U100 or EEPROM, U10.

Setup

Prior to beginning the procedure, turn the rotary switch
constant ambient temperature for 30 minutes. This allows the internal reference junction
sensor and input terminals to stabilize to the same temperature.
Connect the IR Serial Cable to the serial com port of the PC. Install the 87/89-IV,
187/189 Service Software.
Table 5. Calibration Inputs (cont.)
Value Frequency
5 A 700 Hz
5 A 700 Hz
5 A DC
5 A DC
Note
Time to Settle (In Seconds)
7
7
16
7
. Let the Meter stabilize in a
OFF
True RMS Multimeter
Calibration
25