Fluke 930 - Maintenance; Replacing the Batteries; Cleaning; Specifications

6
MAINTENANCE
Beyond replacing the batteries, do not attempt to repair or service the Product
unless you are qualied to do so and have relevant calibration, performance test,
and service instructions. The recommended calibration cycle is 12 months.
 Warning
To prevent possible electrical shock, re, or personal injury:
● Repair the Product before use if the battery leaks.
● Use only specied replacement parts.
● Have an approved technician repair the Product.
● Be sure that the battery polarity is correct to prevent battery
leakage.
REPLACING THE BATTERIES
Replace the batteries when the low battery symbol appears on the display.
1. Remove the battery cover on back of the Tachometer. See Figure 3.
2. Replace with 2 AA 1.5V IEC LR6 (Alkaline) batteries.
3. Replace the battery cover.
CLEANING
Periodically wipe the case with a damp cloth and mild detergent. Do not use
abrasives or solvents. Dirt or moisture in the terminals can affect readings.
SPECIFICATIONS
RPM
Range
Optical (non-contact) 1 RPM to 99999 RPM
Contact (Fluke 931) 1 RPM to 19999 RPM
Accuracy ±0.02 % of reading ±1 digit
Sensing Distance (optical) 500 mm (20 inches)
Battery Type 2x AA 1.5 V IEC LR6 (Alkaline)
Battery Life Fluke 930 approximately 35 hours
Fluke 931 approximately 40 hours
Operating Temperature 0 ºC to +50 ºC (32 ºF to 122 ºF)
Storage Temperature -20 ºC to +70 ºC (0 ºF to 160 ºF)
Operating Humidity 10 %-90 % RH (non-condensing)
Operating Altitude 2000 m