User's Manual

787/789 SOMV 1 of 1 5/1/2008
Instrument Security Procedures
Models:
Fluke 787, Fluke 789
Product Name:
ProcessMeter™
Instrument Description:
Handheld DMM and Loop Calibrator
Memory Description:
Fluke 787 has two memory devices:
• U12, microcontroller, NEC UPD78064, 32-kbyte ROM, 1-kbyte RAM, 160-bits LCD
display RAM contains operating code for the product
• U108, Serial 16-kbyte EEPROM contains calibration and user preference constants
Fluke 789 has two memory devices:
• U1, microcontroller, NEC UPD780306, 48-kbyte ROM, 2-kbyte RAM, 160-bits LCD
display RAM contains operating code for the product
• U29, Serial 4-kbyte EEPROM contains calibration and user preference constants
Memory Cleaning Instructions:
The user-controlled storage operation, other than calibration constants, is the
storage of Min, Max, Average, and REL. Min, Max, Average, and REL are
cleared when the function switch is changed or if the unit is powered off.