Fluke 1587 T Insulation Multimeter

Fluke 1587 T Offers
Features

True RMS voltage and current for accurate measurements
Digital display counts of 6000
Auto-range and manual range for easy testing
Selectable filter for accurate voltage and frequency measurements on motor
drives
Special remote control probe for easy and safe measurements
Auto-discharge of capacitive voltage for added user protection
Live circuit detection prevents insulation test if voltage > 30 V is detected for
added user protection
Auto power off to save batteries
Large display with backlight
Input Alert to warn for incorrect connections
Continuity

6 Tips for effective insulation testing

1

Disconnect any electronic devices like motor drives, PLC’s, transmitters, etc. before performing insulation testing. Electronics can be damaged by applying higher than normal voltage.

2

The effect of temperature should be considered – it is recommended that tests be performed at a standard conductor temperature of 20 °C (68 °F) or that a temperature baseline is established while compensating future readings by using a DMM with a probe or an infrared thermometer.

3

Select a test voltage appropriate for the insulation being tested. The objective is to stress the insulation but not to over-stress it. When in doubt, use a lower test voltage. It’s usually appropriate to test insulation at twice the voltage it normally sees: for example 460 V to 600 V rated equipment is often tested at 1000 V.

4

When using an insulation tester, leave the leads connected when you stop the test. The insulation tester can discharge any residual test voltage.

5

Conductors that are close to each other have a normal capacitance. This will cause an insulation resistance reading to start low and increase steadily until it stabilizes. This type of increase is normal, but if the reading jumps violently down and up again this indicates arcing.

6

Although the current is tightly limited, an insulation tester can generate sparks and minor but painful burns. The unexpected surprise can cause an operator to jerk away. As always, work away from live systems and use safe work practices when working overhead.

Insulation Resistance Testing SolutionsFluke 1587 T Offers
Features

True RMS voltage and current for accurate measurements
Digital display counts of 6000
Auto-range and manual range for easy testing
Selectable filter for accurate voltage and frequency measurements on motor
drives
Special remote control probe for easy and safe measurements
Auto-discharge of capacitive voltage for added user protection
Live circuit detection prevents insulation test if voltage > 30 V is detected for
added user protection
Auto power off to save batteries
Large display with backlight
Input Alert to warn for incorrect connections
Continuity

6 Tips for effective insulation testing

1

Disconnect any electronic devices like motor drives, PLC’s, transmitters, etc. before performing insulation testing. Electronics can be damaged by applying higher than normal voltage.

2

The effect of temperature should be considered – it is recommended that tests be performed at a standard conductor temperature of 20 °C (68 °F) or that a temperature baseline is established while compensating future readings by using a DMM with a probe or an infrared thermometer.

3

Select a test voltage appropriate for the insulation being tested. The objective is to stress the insulation but not to over-stress it. When in doubt, use a lower test voltage. It’s usually appropriate to test insulation at twice the voltage it normally sees: for example 460 V to 600 V rated equipment is often tested at 1000 V.

4

When using an insulation tester, leave the leads connected when you stop the test. The insulation tester can discharge any residual test voltage.

5

Conductors that are close to each other have a normal capacitance. This will cause an insulation resistance reading to start low and increase steadily until it stabilizes. This type of increase is normal, but if the reading jumps violently down and up again this indicates arcing.

6

Although the current is tightly limited, an insulation tester can generate sparks and minor but painful burns. The unexpected surprise can cause an operator to jerk away. As always, work away from live systems and use safe work practices when working overhead.

Insulation Resistance Testing Solutions

Fluke 1587 T Specifications

Insulation Specifications

Measurement Range
0.01 to 100 MΩ

Test Voltages
50 V, 100 V

Accuracy: + 20%, -0%

Insulation Test Current
1 mA nominal

Auto Discharge
Discharge time < 0.5 s for C = 1 µF or less Maximum Capacitive Load Up to 1 µF load Multimeter Specifications Voltage DC Maximum: 1000 V Maximum Resolution: 1 mV Accuracy: ± (0.09% + 2) Voltage AC Maximum: 1000 V Maximum Resolution: 0.1 mV Accuracy: ± (2% + 3) Current DC Maximum: 400 mA Maximum Resolution: 0.01 mA Accuracy: ± (0.2% + 2) Current AC Maximum: 400 mA Maximum Resolution: 0.01 mA Accuracy: ± (1.5% + 2) Resistance Maximum: 50.0 MΩ Maximum Resolution: 0.1 Ω Accuracy: ± (0.9% + 2) Capacitance Maximum: 9999 µF Maximum Resolution: 1 nF Accuracy: ± (1.2% + 2) Frequency Maximum: 99.99 kHz Maximum Resolution: 0.01 Hz Accuracy: ± (0.1% + 1) Temperature Maximum: -40 to 998.6°F (-40 to 537°C) Maximum Resolution: 32.1°F (0.1°C) Accuracy: ± (1% + 10) General Specifications Temperature Operating: -4 to 131°F (-20 to 55°C) Storage: -40 to 140°F (-40 to 60°C) Power Supply 4 x AA Batteries (NEDA 15A or IEC LR6) Battery Life Meter: 1000 hrs Insulation Test: > 1000 tests

Dimensions
8 x 4 x 2″ (203 x 100 x 50 mm)

Weight
1.2 lbs (0.55 kg)

Click here for complete specifications on the Fluke 1587 T

What’s included with the Fluke 1587 T
Insulation Multimeter
Remote Test Probe
K-Type Thermocouple Probe
Silicone Test Lead Set
Alligator Clip Set
Carrying Case

Two in one tools
Stand-alone tools

Insulation test features

1587 FC
1577
1503
1507
1550C
1555

Test voltages

50 V, 100 V, 250 V, 500 V, 1000 V
500 V, 1000 V
500 V, 1000 V
50 V, 100 V, 250 V, 500 V, 1000 V
250 V to 5000 V
250 V to 10,000 V

Insulation resistance range
0.01 MΩ to 2 GΩ
0.01 MΩ to 600 GΩ
0.01 MΩ to 2000 GΩ
0.01 MΩ to 10 GΩ
250 kΩ to 1 TΩ
250 kΩ to 2 TΩ

PI/DAR

Auto discharge

Timed ramp test (Breakdown)

Pass/fail comparison

Est. # of IRT tests

1000
1000
2000
2000
Various
Various

Voltage > 30 V warning

Memory

With Fluke Connect App

Remote test probe

Lo ohms/earth-bond continuity

200 mA source (10 mΩ resolution)
200 mA source (10 mΩ resolution)

Display

Digital LCD
Digital LCD
Digital LCD
Digital LCD
Digital LCD/ analog display
Digital LCD/ analog display

Hold/lock

Multimeter features

AC/DC volts

Note: Not all product features and specifications are listed in this table. For more complete information, see individual product data sheets.
Footnotes:

1. Function useful for checking connections and motor windings. Also useful for users who are required to perform earth-bond continuity measurements during installation testing.
2. Filter for variable-speed motor drive measurements.

Current

Resistance

Continuity beeper

Temperature (contact)

Lo-pass filter2

Capacitance

Diode test

Frequency

MIN/MAX

Other features

Backlight

Software

Fluke Connect compatible

FlukeView® Forms Basic
Fluke View® Forms Basic

Battery

4 AA (NEDA 15A or IEC LR6)
4 AA (NEDA 15A or IEC LR6)
4 AA (NEDA 15A or IEC LR6)
4 AA (NEDA 15A or IEC LR6)
Rechargeable
Rechargeable

Find out more about insulation testing