77/75/23/21 English Instruction Sheet
Page
9
Service and Parts
To contact Fluke, call one of the following telephone numbers:
USA and Canada: 1-888-99-FLUKE (1-888-993-5853)
Europe: +31 402-678-200
Japan: +81-3-3434-0181
Singapore: +65-
*
-276-6196
Anywhere in the world: +1-425-356-5500
Or, visit Fluke’s Web site at www.fluke.com.
Item Description Fluke
PN
Quan.
BT1 Battery, 9 V, NEDA 1604/IEC 6F22, or
NEDA 1604A/IEC 6LR61
696534
614487
1
F1*
Models 21/75:
Fuse, F630 mA, 250 V, Min Interrupt
Rating 1500 A or IEC 127-1
740670 1
F2* Fuse, F11 A, 1000 VAC/DC,
Min Interrupt Rating 17 kA
943118 1
F1*
Models 23/77:
Fuse, F44/100 A, 1000 VAC/DC,
Min Interrupt Rating 10 kA
943121 1
F2* Fuse, F11 A, 1000 VAC/DC,
Min Interrupt Rating 17 kA
943118 1
* For safety, use exact replacement
Specifications
Accuracy is specified for a period of one year after calibration, at
18°C to 28°C (64°F to 82°F) with relative humidity to 90%. AC
conversions are ac-coupled, average responding, and calibrated
to the RMS value of a sine wave input.
Accuracy specifications are given as:
±([% of reading] + [number of least significant digits])
Maximum Voltage Between
any Terminal and Earth
Ground
Rated voltage
Display Digital: 3,200 counts, updates 2.5/sec
Analog: 31 segments, updates 25/sec
Response Time of Digital
Display
V ac < 2 s
V dc < 1 s
Ω < 1s to 320 kΩ, < 2s to 3.2 MΩ,
< 10 s to 32 MΩ
Operating Temperature 0°C to 50°C
Storage Temperature -40°C to 60°C
Temperature Coefficient 0.1 x (specified accuracy)/°C
(<18°C or >28°C)
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