1587/1577
Insulation Multimeters
Technical Data
Two powerful tools in one.
The Fluke 1587 and 1577 Insulation
Multimeters combine a digital
insulation tester with a full-featured,
true-rms digital multimeter in a
single compact, handheld unit,
which provides maximum versatility
for both troubleshooting and
preventative maintenance.
Like other tools that you have
come to expect from Fluke, the
1587 and 1577 are rugged, reliable
and easy to use.
Whether you work on motors,
generators, cables or switch-gear,
the Fluke 1587/1577 Insulation
Multimeters are ideally suited to
help you with your tasks.
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Large display with backlight
Insulation test (1587: 0.01 MΩ to 2 GΩ)
(1577: 0.1 MΩ to 600 MΩ)
Insulation test voltages (1587: 50 V, 100 V, 250 V,
500 V, 1000 V),(1577: 500 V, 1000 V) for many
applications
Live circuit detection prevents insulation test if volt-
age > 30 V is detected for added user protection
Auto-discharge of capacitive voltage for added user
protection
AC/DC voltage, DC milliVolts, AC/DC milliamps,
Resistance (Ω), Continuity
Filter for motor drive measurements (1587 only)
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Capacitance, diode test, temperature, Min/Max,
frequency (Hz) (1587 only)
Auto power off to save battery power
CAT III 1000 V, CAT IV 600 V measurement category
Included accessories: Remote probe, test leads
and probes, alligator clips, (K-type thermocouple,
1587 only)
Accepts optional Fluke TPAK
™
magnetic hanging
system to free your hands for other work
Rugged, utility hard case allows you to bring
everything you need for the job
Three year warranty
1587/1577 Specifications
AC voltage measurement
1587 accuracy
Range
600.0 mV
6.000 V
60.00 V
600.0 V
1000 V
1
1
Resolution
0.1 mV
0.001 V
0.01 V
0.1 V
1V
50 Hz to 60 Hz
+ (1 % + 3)
+ (1 % + 3)
+ (1 % + 3)
+ (1 % + 3)
+ (2 % + 3)
60 Hz to 5000 Hz
+ (2 % + 3)
+ (2 % + 3)
+ (2 % + 3)
+ (2 % + 3)
1
+ (2 % + 3)
1
kHz bandwidth
1587 lowpass filter Voltage
Range
600.0 mV
6.000 V
60.00 V
600.0 V
1000 V
Resolution
0.1 mV
0.001 V
0.01 V
0.1 V
1V
50 Hz to 60 Hz
± (% of Rdg + Digits)
± (1 % + 3)
± (1 % + 3)
± (1 % + 3)
± (1 % + 3)
± (2 % + 3)
60 Hz to 400 Hz
± (% of Rdg + Digits)
+ (2 % + 3)
– (6 % – 3)
+ (2 % + 3)
– (6 % – 3)
+ (2 % + 3)
– (6 % – 3)
+ (2 % + 3)
– (6 % – 3)
+ (2 % + 3)
– (6 % – 3)
1577 accuracy
Range
600.0 mV
6.000 V
60.00 V
600.0 V
1000 V
Resolution
0.1 mV
0.001 V
0.01 V
0.1 V
1V
50 Hz to 60 Hz
± (2 % + 3)
± (2 % + 3)
± (2 % + 3)
± (2 % + 3)
± (2 % + 3)
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
up to 500 V, decreasing linearly to crest factor <= 1.5 at 1000 V. For non-sinusoidal waveforms add ± (2 %
reading + 2 % FS) typical, for a crest factor up to 3.
Input impedance:
10 MΩ (nominal), < 100 pF, ac-coupled
Common mode rejection ratio (1 kΩ unbalanced):
> 60 dB at dc, 50 or 60 Hz
Overload protection:
1000 V rms or dc, 10
7
V Hz Max
DC voltage measurement
Range
6.000 V dc
60.00 V dc
600.0 V dc
1000 V dc
1
Accuracies
Resolution
0.001 V
0.01 V
0.1 V
1V
Accuracy 1587
1
± (0.09 % + 2)
± (0.09 % + 2)
± (0.09 % + 2)
± (0.09 % + 2)
Accuracy 1577
1
± (0.2 % + 2)
± (0.2 % + 2)
± (0.2 % + 2)
± (0.2 % + 2)
apply to ± 100 % of range
Input impedance:
10 M
Ω
(nominal), < 100 pF
Normal mode rejection ratio:
> 60 dB @ 50 Hz or 60 Hz
Common rode rejection ratio:
> 120 dB @ dc, 50 Hz or 60 Hz (1 kΩ unbalance)
Overload protection:
1000 V rms or dc
DC millivolts measurement
Range
600.0 mV dc
2 Fluke Corporation
1587/1577 Insulation Multimeters
Resolution
0.1 mV
Accuracy 1587
± (0.1 % + 1)
Accuracy 1577
± (0.2 % + 1)
DC and ac current measurement
Range
AC
45 to 1000 Hz
DC
1
1
400 mA
60 mA
400 mA
60 mA
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
kHz bandwidth
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 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
1
Accuracies
Resolution
0.1
Ω
0.001 kΩ
0.01 kΩ
0.1 kΩ
0.001 MΩ
0.01 MΩ
Accuracy 1587
1
± (% of Rdg+Digits)
Accuracy 1577
1
± (% of Rdg+Digits)
± (0.9
% + 2)
± (1.2 % + 2)
± (1.5 % + 3)
± (2.0 % + 3)
apply from 0 to 100 % of range
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 % + 3)
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
Continuity test
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
1587/1577 Specifications
cont.
Frequency counter sensitivity
Input Range
600.0 mV ac
6.0 V
60.0 V
600.0 V
1000.0 V
1
Maximum input for specified accuracy =
2
Usable to 100 kHz with full scale input.
V ac Sensitivity (RMS Sinewave)
1
5 Hz to 20 kHz
20 kHz to 100 kHz
100.0 mV
150.0 mV
1.0 V
1.5 V
10.0 V
36.0 V
100.0 V
–
300.0 V
–
DC Trigger Levels
to 20 kHz
2
N/A
-400.0 mV and 2.5 V
1.2 V and 4.0 V
12.0 V and 40.0 V
12.0 V and 40.0 V
10x range (1000 V max). Noise at low frequencies and amplitudes may affect accuracy.
Capacitance (1587 only)
Range
1000 nF
10.00 µF
100.0 µF
9999 µF
Resolution
1 nF
0.01 µF
0.1 µF
1 µF
± (% of Rdg+Digits)
± (1.2 % + 2)
± (1.2 % +/- 90 counts)
Temperature measurement (1587 only)
Range
-40 °C to 537 °C
-40 °F to 998 °F
1
Accuracies
Resolution
0.1 °C
0.1 °F
Accuracy
1
± (1 % + 10 counts)
± (1 % + 18 counts)
apply following 90 minutes settling time after a change in the ambient temperature of the instrument
Insulation specifications
Measurement range:
1587: 0.01 MΩ to 2 GΩ , 1577: 0.1 MΩ to 600 MΩ
Test voltages:
50, 100, 250, 500, 1000 V model 1587, 500 and 1000 V model 1577
Test voltage accuracy:
+ 20 %, - 0 %
Short-circuit test current:
1 mA nominal
Auto discharge:
Discharge time < 0.5 second for C = 1 µF or less
Live circuit detection:
Inhibit test if terminal voltage > 30 V prior to initialization of test
Maximum capacitive load:
Operable with up to 1 µF load
4 Fluke Corporation
1587/1577 Insulation Multimeters
Model 1587
Output Voltage
50 V
(0 % to + 20 %)
100 V
(0 % to + 20 %)
250 V
(0 % to + 20 %)
500 V
(0 % to + 20 %)
1000 V
(0 % to + 20 %)
Display Range
0.01 to 6.00 MΩ
6.0 to 50.0 MΩ
0.01 to 6.00 MΩ
6.0 to 60.0 MΩ
60 to 100 MΩ
0.1 to 60.0 MΩ
60 to 250 MΩ
0.1 to 60.0 MΩ
60 to 500 MΩ
0.1 to 60.0 MΩ
60 to 600 MΩ
0.6 to 2.0 GΩ
Resolution
0.01 MΩ
0.1 MΩ
0.01 MΩ
0.1 MΩ
1 MΩ
0.1 MΩ
1 MΩ
0.1 MΩ
1 MΩ
0.1 MΩ
1 MΩ
100 MΩ
Test Current
1 mA @ 50 kΩ
Resistance Accuracy
± (3 % + 5 counts)
1 mA @ 100 kΩ
1 mA @ 250 kΩ
1 mA @ 500 kΩ
± (3 % + 5 counts)
± (1.5 % + 5 counts)
± (1.5 % + 5 counts)
± (1.5 % + 5 counts)
± (10 % + 3 counts)
1 mA @ 1 MΩ
Model 1577
Output Voltage
500 V
(0 % to + 20 %)
1000 V
(0 % to + 20 %)
Display Range
0.1 to 60.0 MΩ
60 to 500 MΩ
0.1 to 60.0 MΩ
60 to 600 MΩ
Resolution
0.1 MΩ
1 MΩ
0.1 MΩ
1 MΩ
Test Current
1 mA @ 500 kΩ
1 mA @ 1 MΩ
Resistance Accuracy
± (2.0 % + 5 counts)
± (2.0 % + 5 counts)
1587/1577 General Specifications
Maximum voltage applied to any terminal:
1000 V ac rms
or dc
Storage temperature:
-40 °C to 60 °C (-40 °F to 140 °F)
Operating temperature:
-20 °C to 55 °C (-4 °F to 131 °F)
Temperature coefficient:
0.05 x (specified accuracy) per °C
for temperatures < 18 °C or > 28 °C (< 64 °F or > 82 °F)
Relative humidity, non-condensing:
< °C
0 % to 95 % @ 10 °C to 30 °C (50 °F to 86 °F)
0 % to 75 % @ 30 °C to 40 °C (86 °F to 104 °F)
0 % to 40 % @ 40 °C to 55 °C (104 °F to 131 °F)
Vibration:
Random, 2 g, 5-500 Hz per MIL-PRF-28800F,
Class 2 instrument
Shock:
1 meter drop per IEC 61010-1 2
nd
Edition (1 meter
drop test, six sides, oak floor)
Electromagnetic compatibility:
In an RF field of 3 V/M,
accuracy = specified accuracy except in temperature:
accuracy = specified accuracy ± 5 °C (9 °F). (EN 61326-1:1997)
Safety:
Complies with ANSI/ISA 82.02.01 (61010-1) 2004,
CAN/CSA-C22.2 NO. 61010-1-04, and IEC/EN 61010-1 2
nd
Edition for measurement CAT III 1000 V and CAT IV 600 V
Certifications:
CSA per standard CSA/CAN C22.2
No. 61010.1-04; TUV per standard EN 61010 Part 1-1002
Batteries:
Four AA batteries (NEDA 15A or IEC LR6)
Battery life:
Meter use 1000 hours; Insulation test use: Meter
can perform at least 1000 insulation tests with fresh alkaline
batteries at room temperature. These are standard tests of
1000 V into 1 MΩ with a duty cycle of 5 seconds on and 25
seconds off
Size:
5.0 cm H x 10.0 cm W x 20.3 cm L (1.97 in H x 3.94 in
W x 8.00 in L)
Weight:
550 g (1.2 lb)
IP rating:
IP40
Altitude (operating):
2000 m CAT III 1000 V, CAT IV 600 V;
3000 m CAT II 1000 V, CAT III 600 V
Storage:
12,000 m
Over-range capability:
110 % of range except for
capacitance which is 1 %
Compliance to EN 61557:
IEC61557-1, IEC61557-2
1587/1577 Insulation Multimeters
Fluke Corporation 5
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