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.

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 and at a cost that is far less than buying the two products.

Consult the features included on the two new insulation multimeters in the comparison chart below to help select the best tool for your application:

Feature 1587 1577 Insulation test voltages 50V, 100V, 250V, 500V, 1000V •   Insulation test voltages 500V, 1000V   • Insulation test: 0.01 MΩ to 2.0 GΩ •   Insulation test: 0.1 MΩ to 600 MΩ   • Auto discharge of capacitive voltage • • Insulation test smoothing reading •   Frequency •   Capacitance •   Diode test •   Temperature •   Min/Max •   Low pass filter (for work on VSD's) •   AC/DC Voltage • • DC millivolts • • AC/DC milliamps • • Resistance (0.1 Ω to 50 MΩ) • • Continuity • • Three-year warranty • • Remote probe, test leads, alligator clips • • K-type thermocouple •   Rugged, utility hard case • • Auto power off to save battery power • • True-rms • • Large display with backlight • • Live circuit detection prevents insulation test if voltage > 30 V is detected for added user protection • • CAT III 100V, CAT IV 600V measurement category • • Accepts optional Fluke TPAKTM magnetic hanging system to free your hands for other work • •

Feature	1587	1577
Insulation test voltages 50V, 100V, 250V, 500V, 1000V	•
Insulation test voltages 500V, 1000V		•
Insulation test: 0.01 MΩ to 2.0 GΩ	•
Insulation test: 0.1 MΩ to 600 MΩ		•
Auto discharge of capacitive voltage	•	•
Insulation test smoothing reading	•
Frequency	•
Capacitance	•
Diode test	•
Temperature	•
Min/Max	•
Low pass filter (for work on VSD's)	•
AC/DC Voltage	•	•
DC millivolts	•	•
AC/DC milliamps	•	•
Resistance (0.1 Ω to 50 MΩ)	•	•
Continuity	•	•
Three-year warranty	•	•
Remote probe, test leads, alligator clips	•	•
K-type thermocouple	•
Rugged, utility hard case	•	•
Auto power off to save battery power	•	•
True-rms	•	•
Large display with backlight	•	•
Live circuit detection prevents insulation test if voltage > 30 V is detected for added user protection	•	•
CAT III 100V, CAT IV 600V measurement category	•	•
Accepts optional Fluke TPAKTM magnetic hanging system to free your hands for other work	•	•

Specifications
Voltage DC	Maximum Voltage:  1000 V Accuracy:  1577: ±(0.2%+2)  1587: ±(0.09%+2) Maximum Resolution:  0.001V
Voltage AC	Maximum Voltage:  1000 V Accuracy:  1577: ±(2%+3)  1587: ±(2%+3) AC Bandwidth:  1587: 5kHz*  *with low pass filter; 3db @ 800 Hz Maximum Resolution:  0.1 mV
Current DC	Maximum Amps:  400mA Amps Accuracy:  1577: ±(1.0%+2)  1587: ±(0.2%+2) Maximum Resolution:  0.01 mA
Current AC	Maximum Amps:  400mA Amps Accuracy:  1577: ±(2.0%+2)*  1587: ±(1.5%+2)*  * 1kHz bandwidth Maximum Resolution:  0.01 mA
Resistance	Maximum Resistance:  50 MΩ Accuracy:  1577: ±(1.2%+2)  1587: ±(0.9%+2) Maximum Resolution:  0.1Ω
Capacitance(1587 only)	Maximum Capacitance:  9,999 µF Accuracy:  ±(1.2%+2) Maximum Resolution:  1 nF
Frequency (1587 only)	Maximum Frequency:  100 kHz Accuracy:  ±(0.1%+1) Maximum Resolution:  0.01 Hz
Temperature Measurement (1587 only)	-40.0 °C to 537 °C  -40.0 °F to 998 °F  excluding probe
Diode Test (1587 only)	Range:  6 V Resolution:  1 mV Accuracy:  ±(2 % + 1)

Insulation Test
Minimum Test Current @ 1kΩ/V:	1mA
Test Voltages:	1577:  500, 1000 V 1587:  50, 100, 250, 500, 1000 V
Maximum Resistance per Test Voltage:	50V:   100V:   250V:   500V:   1000V:  1577: 600 MΩ  1587: 2 GΩ
Maximum Resolution per Test Voltage:	50V:  0.01 MΩ 100V:  0.01 MΩ 250V:  0.1 MΩ 500V:  0.1 MΩ 1000V:  0.1 MΩ
Accuracy per Test Voltage:	50V:  ±(3 % + 5) 100V:  ±(3 % + 5) 250V:  ±(1.5 % + 5) 500V:  1577: ±(2.0 % + 5)  1587: ±(1.5 % + 5) 1000V:  1577: ±(2.0 % + 5)  1587: ±(1.5 % + 5) to 600 MΩ, ±(10 % + 3) above 600 MΩ

Environmental Specifications
Operating temperature	–20 °C to +55 °C
Storage temperature	-40°C to +60°C
Humidity (Without Condensation)	0% - 95% (10 °C – 30 °C)  0% - 75% (30 °C – 40 °C)  0% - 40% (40 °C – 55 °C)
Operating Altitude	2000 m

Safety Specifications
Overvoltage category	Complies with ANSI/ISA 82.02.01 (61010-1) 2004, CAN/CSA-C22.2 NO. 61010-1-04, and IEC/EN 61010-1 2nd Edition for measurement CAT III 1000 V and CAT IV 600 V
Agency Approvals	2000 m CAT III 1000 V, CAT IV 600 V; 3000 m CAT II 1000 V, CAT III 600 V

Mechanical & General Specifications
Size	203 x 100 x 50 mm (with holster)
Weight	624 g
Warranty	3 years
Battery life Alkaline	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.
IP Rating	IP40