Fluke 1577 Fluke 1577 and 1587 Insulation Multimeter Datasheet - Page 3

DC and ac current measurement Range AC 400 mA 45 to 1000 Hz 60 mA DC 400 mA 60 mA 11 kHz bandwidth Resolution 0.1 mA 0.01 mA 0.1 mA 0.01 mA Accuracy 1587 ± (% of Rdg+Digits) ± (1.5 % + 2)1 ± (1.5 % + 2)1 ± (0.2 % + 2) ± (0.2 % + 2) Accuracy 1577 ± (% of Rdg+Digits) ± (2 % + 2)1 ± (2 % + 2)1 ± (1.0 % + 2) ± (1.0 % + 2) Burden Voltage (Typical) 2 mV/mA 2 mV/mA Overload: 600 mA for 2 minutes maximum Overload protection: 440 mA, 1000 V, FAST fuse AC conversion: Inputs are ac-coupled and calibrated to the rms value of sine wave input. Conversions are true-rms responding and specified from 5 % to 100 % of range. Input signal crest factor can be up to 3 at full scale up to 300 mA, decreasing linearly to crest factor < = 1.5 at 600 mA. For non-sinusoidal waveforms add + (2 % reading + 2 % FS) typical, for a crest factor up to 3. Ohms measurement Range 600.0 Ω 6.000 kΩ 60.00 kΩ 600.0 kΩ 6.000 MΩ 50.0 MΩ Resolution 0.1 Ω 0.001 kΩ 0.01 kΩ 0.1 kΩ 0.001 MΩ 0.01 MΩ 1Accuracies apply from 0 to 100 % of range Accuracy 15871 ± (% of Rdg+Digits) 0.9 % + 2 1.5 % + 3 Accuracy 15771 ± (% of Rdg+Digits) 1.2 % + 2 2.0 % + 3 Overload protection: 1000 V rms or dc Open circuit test voltage: < 8.0 V dc Short circuit current: < 1.1 mA Diode test (1587 Only) Diode test indication: Display voltage drop: 0.6 V at 1.0 mA nominal test current Accuracy: + (2 % + 1) Continuity test Continuity indication: Continuous audible tone for test resistance below 25 Ω and off above 100 Ω. Maximum reading; 1000 Ω Open circuit voltage: < 8.0 V Short circuit current: 1.0 mA typical Overload protection: 1000 V rms Response time: > 1 m sec Frequency measurement (1587 only) Range 99.99 Hz 999.9 Hz 9.999 kHz 99.99 kHz Resolution 0.01 Hz 0.1 Hz 0.001 kHz 0.01 kHz Accuracy ± (% of Rdg+Digits) ± (0.1 % + 1) ± (0.1 % + 1) ± (0.1 % + 1) ± (0.1 % + 1) 1587/1577 Insulation Multimeters Fluke Corporation 3