Procedure; Re-Programming Serial Number Or Model Number - Fluke 87 IV Series Service Manual

Procedure

While the rotary switch is in the
Meter's terminal (same temperature as reference junction). Make sure the probe tip
COM
makes firm contact with the bottom of the terminal. Measure and record the
terminal temperature in units of 1/100 °C. Do not convert this number to Fahrenheit, even
if the Meter is using the Fahrenheit scale for its display output.
Turn the rotary switch to the temperature position. It does not matter whether the Meter is
in calibration mode. On the Service Software menu screen, click
the measured temperature value in the text box and click
reference junction temperature to the Meter through the IR adapter.
Although the temperature calibration is not yet complete, it is safe at this point to turn the
Meter off if the need arises. Doing so will not invalidate the previous steps.
To complete the temperature calibration, the DC mV function must be calibrated.
After DC mV calibration is complete:
1. Turn the rotary switch to the temperature position. Put the Meter in calibration mode
by pressing the recessed button on the back of the Meter.
The secondary display, which normally shows the required input, displays zero. In
this case, no input is required.
2. Press the
UP
This sends the calculated temperature constants to EEPROM, and completes the
temperature calibration.
3. Continue calibrating the other functions, or turn the rotary switch to the
to exit calibration.

Re-Programming Serial Number or Model Number

When the U10 EEPROM is replaced, you must also reenter the serial number and model
number for the Meter. Do this as follows:
1. Connect the IR adapter to the serial com port of the PC. Install Fluke 87/89 IV
Service Software (Fluke P/N 676152).
2. Turn the Meter rotary switch to any function.
3. On the Service Software menu screen, click
the back of the Meter in the text box and click
or in the model menu box.
Yes No
position, insert the certified 80T-150 probe into the
OFF
button.
°C Ref. Junction
OK . This sends the recorded
. Enter the serial number from
EEPROM
OK . To enter the model number, click
Calibration
COM
. Enter
position
OFF
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