Fluke Fluke 1587 FC Manual

1587/1577

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Insulation Multimeters

Users Manual

®

LIMITED WARRANTY AND LIMITATION OF LIABILITY

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Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is three
years and begins on the date of shipment. Parts, product repairs, and services are warranted for 90 days. This warranty extends only to the original
buyer or end-user customer of a Fluke authorized reseller, and does not apply to fuses, disposable batteries, or to any product which, in Fluke's opin­ion, has been misused, altered, neglected, contaminated, or damaged by accident or abnormal conditions of operation or handling. Fluke warrants
that software will operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on non­defective media. Fluke does not warrant that software will be err or free or operate without interruption.

Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no authority to extend a
greater or different warranty on behalf of Fluke. Wa rranty support is available only if product is purchased through a Fluke authorized sales outlet or
Buyer has paid the applicable international price. Fluke reserves the right to invoice Buyer for importation costs of repair/replacement parts when
product purchased in one country is submitted for repair in another country.

Fluke's warranty obligation is limited, at Fluke's option, to refund of the purchase price, free of charge repair, or replacement of a defective product
which is returned to a Fluke authorized service center within the warranty period.

To obtain warranty service, contact your nearest Fluke authorized service center to obtain return authorization information, then send the product to
that service center, with a description of the difficulty, postage and insurance prepaid (FOB Destination). Fluke assumes no risk for dama ge in transit.
Following warranty repair, the product will be returned to Buyer, transportation prepaid (FOB Destination). If Fluke determines that failure was caused
by neglect, misuse, contamination, alteration, accident, or abnormal condition of operation or handling, including overvoltage failures caused by us e
outside the product’s specified rating, or normal wear and tear of mechanical components, Fluke will provide an estimate of repai r costs and obtain
authorization before commencing the work. Following repair, the product will be returned to the Buyer transportation prepaid and the Buyer will be
billed for the repair and return transportation charges (FOB Shipping Point).

THIS WARRANTY IS BUYER'S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, IN­CLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS F OR A PARTICULAR PURPOSE. FLUKE
SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF
DATA, ARISING FROM ANY CAUSE OR THEORY.

Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or limitation of incidental or cons eq ue ntial dam­ages, the limitations and exclusions of this warranty may not apply to every buyer. If any provision of this Warranty is held invalid or unenforceable by
a court or other decision-maker of competent jurisdiction, such holding will not affect the validity or enforceability of any other provision.

Fluke Corporation
P.O. Box 9090
Everett, WA 98206-9090
U.S.A.

Fluke Europe B.V.
P.O. Box 1186
5602 BD Eindhoven
The Netherlands

11/99

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Table of Contents

Title Page

Introduction .................................................................................................................... 1

Contacting Fluke ............................................................................................................ 1

Safety Information.......................................................................................................... 2

Accessories.................................................................................................................... 4

Unsafe Voltage............................................................................................................... 4

Test Lead Alert............................................................................................................... 4

Battery Saver (Sleep Mode)........................................................................................... 4

Rotary Switch Positions.................................................................................................. 5

Buttons........................................................................................................................... 6

Understanding the Display ............................................................................................. 8

Input Terminals............................................................................................................... 11

Power-Up Options.......................................................................................................... 12

AutoHold Mode............................................................................................................... 13

MIN MAX AVG Recording Mode.................................................................................... 13

Manual Ranging and Autoranging.................................................................................. 14

Understanding AC Zero Input Behavior of True RMS Meters ........................................ 15

Low-Pass Filter (Model 1587 and 1587T) ...................................................................... 15

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Users Manual

Making Basic Measurements......................................................................................... 16

Measuring AC and DC Voltage

Measuring Temperature (Model 1587 and 1587T).................................................... 18

Measuring Resistance............................................................................................... 19

Measuring Capacitance (Model 1587 and 1587T) .................................................... 19

Testing for Continuity................................................................................................ 20

Testing Diodes (Model 1587 and 1587T)

Measuring AC or DC Current.................................................................................... 22

Testing Insu

Measuring Frequency (Model 1587 and 1587T) ....................................................... 25

Cleaning......................................................................................................................... 27

Testing the Batteries......................................................................................................

Testing the Fuse............................................................................................................ 27

Replacing the Batteries and Fuse.................................................................................. 28

Specificati

General Specifications.............................................................................................. 29

Electrical Specifications................................................................................................. 30

AC Voltage Measurement.........................................................................................

1587 and 1587T Accuracy ................................................................................... 30

1587 and 1587T Low-Pass Filter Voltage

1577 Accuracy...................................................................................................... 31

DC Voltage Measurement......................................................................................... 32

DC Millivolts Measurement ....................................................................................... 32

DC and A
Ohms Measurement

Diode Test (1587 and 1587T Only)........................................................................... 34

Continuity

Frequency Measurement (1587 and 1587T Only) .................................................... 35

lation...................................................................................................... 24

ons................................................................................................................. 29

C Current Measurement............................................................................ 33

.................................................................................................. 34

Test.......................................................................................................... 34

................................................................................. 17

.................................................................. 21

27

30

............................................................ 31

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Contents

Frequency Counter Sensitivity................................................................................... 35

Capacitance (1587 and 1587T Only)......................................................................... 35

Temperature Measurement (1587 and 1587T Only) ................................................. 36

Insulation Specifications............................................................................................ 36

Model 1587........................................................................................................... 37

Model 1577........................................................................................................... 37

Model 1587T......................................................................................................... 38

(continued)

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Users Manual

iv

List of Tables

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Table Title Page

1. Symbols................................................................................................................................. 3

2. Rotary Switch Selections....................................................................................................... 5

3. Buttons.................................................................................................................................. 7

4. Display Indicators

5. Error Messages.....................................................................................................................

6. Input Terminal Descriptions................................................................................................... 12

7. Power-Up Options................................................................................................................. 12

.................................................................................................................. 8

10

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Users Manual

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List of Figures

Figure Title Page

1. Rotary Switch........................................................................................................................ 5

2. Buttons.................................................................................................................................. 6

3. Display Indicators.................................................................................................................. 8

4. Input Terminals...................................................................................................................... 11

5. Low Pass Filter...................................................................................................................... 15

6. Measuring AC and DC Voltage ............................................................................................. 17

7. Measuring Temperature........................................................................................................ 18

8. Measuring Resistance........................................................................................................... 19

9. Measuring Capacitance......................................................................................................... 19

10. Testing for Continuity............................................................................................................. 20

11. Testing Diodes ...................................................................................................................... 21

12. Measuring AC or DC Current ................................................................................................ 23

13. Testing Insulation.................................................................................................................. 25

14. Measuring Frequency............................................................................................................ 26

15. Testing the Fuse.................................................................................................................... 27

16. Replacing the Fuse and Battery ............................................................................................ 28

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Insulation Multimeters

Introduction

The Fluke Models 1587,1587T, and 1577 are
battery-powered, true-RMS insulation multimeters
(hereafter "the Meter") with a 6000-count and a 3 ¾ digit
display. Although this manual describes the operation of
all models, all illustrations and examples assume use of
Model 1587.

These meters meet CAT III and CAT IV IEC 61010
standards. The IEC 61010 standard defines four
measurement categories (CAT I to IV) based on the
magnitude of danger from transient impulses. CAT III
meters are designed to protect against transients in Fixed
equipment installations at the distribution level; CAT IV
meters are designed to protect against transients from the
primary supply level (overhead or underground utility
service).

The Meter measures or tests the following:

• AC / DC voltage and
current

• Resistance • Continuity

• Voltage and current

frequency

• Temperature (Model

1587)

• Diodes (Model 1587)

• Capacitance (Model

1587)

• Insulation testing

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Users Manual

Safety Information

Use the Meter only as specified in this manual. Otherwise, the protection provided by the Meter may be impaired. See
Table 1 for a list of symbols used on the Meter and in this manual.

A XWWarning identifies hazardous conditions and actions that could cause bodily harm or death.
A XWCaution identifies conditions and actions that could damage the Meter, the equipment under test, or cause

permanent loss of data.

XWWarning

To avoid possible electric shock or personal injury, follow these guidelines:

• Use the Meter only as specified in this manual or the protection provided by the Meter might be
impaired.

• Do not use the Meter or test leads if they appear damaged, or if the Meter is not operating properly. If in
doubt, have the Meter serviced.

• Always use the proper terminal, switch position, and range for measurements before connecting Meter
to circuit under test.

• Verify the Meter’s operation by measuring a known voltage.

• Do not apply more than the rated voltage as marked on the Meter, between the terminals or between

any terminal and earth ground.

• Use caution with voltages above 30 V ac rms, 42 V ac peak, or 60 V dc. These voltages pose a shock
hazard.

• Replace the battery as soon as the low battery indicator (b) appears.

• Disconnect circuit power and discharge all high-voltage capacitors before testing resistance,

continuity, diodes, or capacitance.

• Do not use the Meter around explosive gas or vapor.

• When using the test leads, keep your fingers behind the finger guards.

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Safety Information

• Remove test leads from the Meter before opening the Meter case or battery door. Never operate the
Meter with the cover removed or the battery door open.

• Comply with local and national safety requirements when working in hazardous locations.

• Use proper protective equipment, as required by local or national authorities when working in

hazardous areas.

• Avoid working alone.

• Use only the replacement fuse specified or the protection may be impaired.

• Check the test leads for continuity before use. Do not use if the readings are high or noisy.

Table 1. Symbols

B AC (Alternating Current) J Earth Ground
F DC (Direct Current) I Fuse

X WARNING: risk of electric shock. T Double Insulated

b Battery (Low battery when shown on display.) W Important information; see manual

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Users Manual

Accessories

K Type

Model Leads Probes Clips Holster Hard Case

1587 and 1587T TL224 TP74 AC285 Yes Yes Yes Yes

1577 TL224 TL74 AC285 Yes Yes No Yes

Unsafe Voltage

To alert you to the presence of a potentially hazardous
voltage, when the Meter detects a voltage ≥ 30 V or a
voltage overload (OL), the Z symbol is displayed.

Test Lead Alert

To remind you to check that the test leads are in the
correct terminals,
move the rotary switch to or from the c position.

To avoid a blown fuse, damage to the Meter,
or serious personal injury, never attempt to
make a measurement with a test lead in an
incorrect terminal.

is momentarily displayed when you

LEAd

XW Warning

Battery Saver (Sleep Mode)

The Meter enters the “Sleep mode” and blanks the display
if there is no function change or button press for
20 minutes. This done to conserve battery power. The
Meter comes out of Sleep mode when a key is pressed or
when the rotary switched is turned.

To disable the Sleep mode, hold down the blue button
while turning the Meter on. Sleep mode is always disabled
in the MIN MAX AVG recording mode, AutoHold mode,
insulation test active, or if the auto power off feature has
been disabled by pressing the blue button when the Meter
is turned on.

Thermocouple

Remote

Probe

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Insulation Multimeters

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Buttons

Table 3. Buttons

Button Description

Press to freeze the displayed value. Press
again to release the display.

When a reading changes, the display
updates and the Meter beeps.

In MIN MAX AVG or Hz mode, this button

h

m

(1587 and

1587T

only)

operates a display hold.
In Insulation Test mode, this schedules a

test lock the next time you press t on
the Meter or on the remote probe. The test
lock acts to hold down the button until your
press h or t again to release the
lock.

Press to start retaining maximum, minimum,
and average values. Press successively to
display maximum, minimum, and average
values. Press and hold to cancel
MIN MAX AVG.

Button Description

f

(1587 and

1587T

only)

r

H

t

G

Activate frequency measurement.

Changes Ranging mode from Auto (default)
to Manual Ranging mode. Press and hold to
return to Auto Ranging mode.

Turns the backlight on and off. The backlight
goes off after 10 minutes.

Initiates an insulation test when the rotary
switch is on the
the Meter to source (output) a high voltage
and measure insulation resistance.

The blue button. Functions as a shift key.
Press to access blue functions on the rotary
switch.

INSULATION position. Causes

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Insulation Multimeters

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Understanding the Display

Table 4. Display Indicators (cont.)

Indicator Description

Z Unsafe voltage warning. Indicates 30

V or greater (ac or dc depending on
the rotary switch position) is detected
on the input. Also appears when the
display shows 0L in the

B, C, or E

switch positions, and when batt
appears on the display. The Z also
appears when insulation test is active,
or in Hz.

a “Smoothing” enabled. Smoothing

dampens display fluctuations of rapidly
changing inputs by digital filtering.
Smoothing is available for insulation
testing on Model 1587 only. For more
on smoothing, see Power-Up options.

K

(1587 and

Indicates the low-pass filter function
for ac volts is selected.

1587T only)

Indicator Description

Y

S

M

n

(1587 and

Indicates AutoHold is active.
Indicates display hold is active.

Indicates minimum, maximum, or
average reading has been selected
using the m button.

1587T only)

X Continuity test function is selected

O

Diode test function is selected

(1587 and

1587T only)

nF, µF, ° C, ° F,
AC, DC, Hz, kHZ,

Measurement units

Ω, kΩ, MΩ, GΩ

0.00.0 Primary display
VDC Volts

1000 Secondary display

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Users Manual

Table 4. Display Indicators (cont.)

Feature Description

Auto Range

Display range in use

ManualRange
610000mV

2500V
1000V

Source voltage rating for insulation
test: 50, 100, 250, 500 (default) or
1000 V on the 1587. 500 (default) and
1000 V ranges available on the 1577.
50 (default) and 100 V on the 1587T.

T Insulation test indicator. Appears when

insulation test voltage is present.

Table 5. Error Messages

Message Description

Appears on the primary display and
indicates that the battery is too low for

batt

reliable operation. The Meter will not
operate at all until the battery is replaced.
The b also appears when batt is on the
primary display.

Appears on the secondary display and
indicates that the battery is too low to
perform an insulation test. The t

bat

button is disabled until the battery is
replaced. This message disappears when
the rotary switch is turned to any other
function.

OPEn

Appears when an open thermocouple is
detected.

Test lead alert. The message appears

LEAd

briefly and a single beep will sound when
you move the switch in or out of the c
position.

15--Err

Model detect error. Service Meter if this is
displayed.

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Users Manual

Item Description

Table 6. Input Terminal Descriptions

p input terminal for insulation test.

A
B q input terminal for insulation test. Use for ac

and dc milliamp measurements to 400 mA and
current frequency measurements.

C Input terminal for voltage, continuity, resistance,

diode, capacitance, voltage frequency, and
temperature (Model 1587 and 1587T only)
measurements.

D Common (return) terminal for all measurements

except insulation test.

Power-Up Options

Holding a button down while turning the Meter on activates
a power-up option. Power-up options allow you to use
additional features and functions of the Meter. To select a
power-up option, hold down the appropriate button
indicated while turning the Meter from OFF to any switch
position. Power-up options are cancelled when the Meter
is turned OFF. Power-up options are described in Table 7.

Table 7. Power-Up Options

Button Description

switch position turns on all LCD segments.

B
C switch position displays the software

version number.

E switch position displays the model

number.

S

r

Power Up options are active when the button is
pressed.

INSULATION switch position initiates a fully

loaded battery test and displays the charge
level of the battery until the button is
released.

The remaining positions show all LCD
segments.

Enables “Smoothing” mode for all of the
functions except insulation. The display
shows S - - - until the button is released.

Smoothing dampens display fluctuations of
rapidly changing inputs by digital filtering.

Note

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AutoHold Mode

Table 7. Power-Up Options (cont.)

Button Description

Disables automatic power-off ("Sleep
mode"). Display shows PoFF until the button is

G

(Blue)

H

t

released.
Sleep mode is also disabled while the Meter

is in a MIN MAX AVG Recording mode,
AutoHold mode, and when performing an
insulation test.

Starts the Calibration mode. The Meter
displays Cal and enters Calibration mode
when the button is released.

Disables the beeper. The display shows bEEP
until the button is released.

AutoHold Mode

XWWarning

To avoid electric shock, do not use the
Display AutoHold mode to determine if a
circuit is live. Unstable or noisy readings will
not be captured.

In the AutoHold mode, the Meter holds the reading on the
display until
Meter beeps and displays the new reading.

it detects a new stable reading. Then the

• Press h to activate AutoHold. Y appears.

• Press h again or turn the rotary switch to

resume normal operation.

MIN MAX AVG Recording Mode

The MIN MAX AVG mode records minimum and maximum
input values. When the inputs go below the recorded
minimum value or above the recorded maximum value,
the Meter beeps and records the new value. This mode
can be used to capture intermittent readings, record
maximum readings while you are away or record readings
while you are operating the equipment under test and
cannot watch the Meter. MIN MAX AVG mode can also
calculate an average of all readings taken since the MIN
MAX AVG mode was activated.

The Meter tracks the minimum, maximum, and average
values for each display which are updated 4 times per
second.

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Users Manual

To use MIN MAX AVG recording:

• Make sure the Meter is in the desired
measurement function and range. (Autoranging is
disabled in the MIN MAX AVG mode).

• Press m to activate MIN MAX AVG mode.
M appears on the display.

• Press m to step through the high (MAX), low
(MIN), average (AVG), and present readings.

• To pause MIN MAX AVG recording without
erasing stored values, press h. S is
displayed.

• To resume MIN MAX AVG recording, press h
again. S turns off.

• To exit and erase stored readings, press m for
one second or turn the rotary switch.

Manual Ranging and Autoranging

The Meter has both Manual Range and Autorange modes.

• In the Autorange mode, the Meter selects the
range with the best resolution.

When you turn the Meter on, it defaults to Autorange and
Auto Range is displayed.

1. To enter the Manual Range mode, press r. Manual
Range is displayed.

2. In the Manual Range mode, press r to increment
the range. After the highest range, the Meter wraps to
the lowest range.

Note

You cannot manually change the range in the MIN
MAX AVG, or Display HOLD modes.

If you press r while in MIN MAX AVG, or
Display HOLD the Meter beeps twice, indicating
an invalid operation, and the range does not
change.

3. To exit Manual Range, press r for one second or
turn the rotary switch. The Meter returns to Autorange
and Auto Range is displayed.

• In the Manual Range mode, you override
Autorange and select the range yourself.

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Making Basic Measurements

The figures on the following pages show how to make
basic measurements.

When connecting the test leads to the circuit or device,
connect the common (COM) test lead before connecting
the live lead; when removing the test leads, remove the
live lead before removing the common test lead.

XWWarning

To avoid electric shock, injury, or damage to
the Meter, disconnect circuit power and
discharge all high-voltage capacitors before
testing resistance, continuity, diodes, or
capacitance.

For better accuracy when measuring the dc offset of an ac
voltage, measure the ac voltage first. Note the ac voltage
range, then manually select a dc voltage range equal to or
higher than the ac range. This procedure improves the
accuracy of the dc measurement by ensuring that the
input protection circuits are not activated.

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Measuring AC or DC Current

XWWarning

To avoid personal injury or damage to the
Meter:

• Never attempt to make an in-circuit current
measurement when the open-circuit potential
to earth is > 1000 V.

• Check the Meter’s fuses before testing. See
Testing the Fuses later in this manual.

• Use the proper terminals, switch position,
and range for your measurement.

• Never place the probes in parallel with a
circuit or component when the leads are
plugged into the current terminals.

Turn power OFF to the circuit under test, break circuit,
insert Meter in series, turn power ON. To measure ac or
dc current, set up the Meter as shown in Figure 12.

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Users Manual

Testing Insulation

Insulation tests should only be performed on dead
circuits. Check the fuse before testing. See Testing the
Fuse later in this manual. To measure insulation
resistance set up the Meter as shown in Figure 13 and
follow the steps below:

1. Insert test probes in the

2. Turn the knob to INSULATION position. A battery load
check is initiated when the switch is moved to this
position. If the battery fails the test b and bat
appear in the lower display. Insulation tests cannot
be performed until the batteries are replaced.

3. Press r to select the voltage.

4. Connect the probes to the circuit to be measured.
The Meter automatically detects if the circuit is
energized.

• The primary display shows - - - - until you press

t and a valid insulation resistance reading
is obtained.

p and q input terminals.

• The high voltage symbol (Z) along with a primary
display of >30 V warns if voltage more than 30 V
ac or dc is present. In this condition, the test is
inhibited. Disconnect the Meter and remove
power before proceeding.

5. Push and hold t to start the test. The
secondary display shows the test voltage applied to
the circuit under test. The high voltage symbol (Z)
along with a primary display showing the resistance
in MΩ or GΩ appears. The
lower portion of the display until t is released.

When resistance is higher than the maximum display
range, the Meter displays the Q symbol and the
maximum resistance for the range.

6. Keep the probes on the test points and release the
t button. The circuit under test then discharges
through the Meter. The resistance reading appears
on the primary display until a new test is started or a
different function or range is selected or > 30 V is
detected.

T icon appears on the

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Insulation Multimeters

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Specifications

Specifications

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

Relative Humidity ................................................Noncondensing

Vibration..............................................................Random, 2 g, 5-500 Hz per MIL-PRF-28800F, Class 2 instrument

Shock ..................................................................1 meter drop per IEC 61010-1 2

Electromagnetic Compat bility.............................In an RF field of 3 V/M, accuracy = specified accuracy except in temperature: accuracy =

Safety..................................................................Complies with ANSI/ISA 82.02.01 (61010-1) 2004, CAN/CSA-C22.2 NO. 61010-1-04, and

Certifications........................................................CSA per standard CSA/CAN C22.2 No. 61010.1-04; TUV per standard EN 61010

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

Size .....................................................................5.0 cm H x 10.0 cm W x 20.3 cm L

Weight.................................................................550 g (1.2 lb.)

IP Rating..............................................................IP40

> 82 °F)

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)

nd

Edition (1 meter drop test, six sides, oak floor)

specified accuracy ± 5 °C (9 °F). (EN 61326-1:1997).

nd

IEC/EN 61010-1 2
CAT IV 600 V.

Part 1-1002

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.

(1.97 in H x 3.94 in W x 8.00 in L)

Edition for measurement category III 1000 V (CAT III) and

29

1587/1577

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

Users Manual

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

Electrical Specifications

AC Voltage Measurement

1587 and 1587T Accuracy

Range Resolution

600.0 mV 0.1 mV + (1 % + 3) + (2 % + 3)

6.000 V 0.001 V + (1 % + 3) + (2 % + 3)

60.00 V 0.01 V + (1 % + 3) + (2 % + 3)

600.0 V 0.1 V + (1 % + 3) + (2 % + 3)
1000 V 1 V + (2 % + 3) + (2 % + 3)

[1] 1 kHz bandwidth.

50 Hz to 60 Hz

± (% of Rdg + Digits)

60 Hz to 5000 Hz

± (% of Rdg + Digits)

[1]

[1]

30

Insulation Multimeters

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

Electrical Specifications

1587 and 1587T Low-Pass Filter Voltage

Range Resolution

600.0 mV 0.1 mV + (1 % + 3)

6.000 V 0.001 V + (1 % + 3)

60.00 V 0.01 V + (1 % + 3)

600.0 V 0.1 V + (1 % + 3)

1000 V 1 V + (2 % + 3)

50 Hz to 60 Hz

± (% of Rdg + Digits)

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 Resolution

600.0 mV 0.1 mV + (2 % + 3)

6.000 V 0.001 V + (2 % + 3)

60.00 V 0.01 V + (2 % + 3)

600.0 V 0.1 V + (2 % + 3)
1000 V 1 V + (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 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

50 Hz to 60 Hz

± (% of Rdg + Digits)

31

1587/1577

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

Users Manual

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 Resolution

6.000 V dc 0.001 V + (0.09 % + 2) + (0.2 % + 2)

60.00 V dc 0.01 V + (0.09 % + 2) + (0.2 % + 2)

600.0 V dc 0.1 V + (0.09 % + 2) + (0.2 % + 2)
1000 V dc 1 V + (0.09 % + 2) + (0.2 % + 2)

[1] Accuracies apply to ± 100% of range.

Input Impedance.................................................10 MΩ (nominal), < 100 pF

Normal Mode Rejection Ratio.............................> 60 dB @ 50 Hz or 60 Hz

Common Mode Rejection Ratio..........................>120 dB @ dc, 50 Hz or 60 Hz (1 k unbalance)

Overload Protection ............................................1000 V rms or dc

Accuracy 1587 and 1587T

± (% of Rdg + Digits)

[1]

± (% of Rdg + Digits)

DC Millivolts Measurement

Range Resolution

600.0 mV dc 0.1 mV + (0.1 % + 1) + (0.2 % + 1)

Accuracy 1587 and 1587T

± (% of Rdg + Digits)

± (% of Rdg + Digits)

Accuracy 1577

Accuracy 1577

[1]

32

Insulation Multimeters

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

Electrical Specifications

DC and AC Current Measurement

Range Resolution

400 mA 0.1 mA + (1.5 % + 2)
45 Hz to
1000 Hz

DC

[1] 1 kHz bandwidth.

60 mA 0.01 mA +

400 mA 0.1 mA + (0.2 % + 2) + (1.0 % + 2)

60 mA 0.01 mA +

Accuracy 1587 and 1587T

± (% of Rdg+Digits)

[1]

+ (2 % + 2)

(1.5 % + 2)

[1]

+ (2 % + 2)

(0.2 % + 2) + (1.0 % + 2)

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 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.

Accuracy 1577

± (% of Rdg+Digits)

[1]

AC

[1]

Burden Voltage

(Typical)

2 mV/mA

2 mV/mA

33

1587/1577

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

Users Manual

Ohms Measurement

Range Resolution

600.0 Ω 0.1 Ω

6.000 kΩ 0.001 kΩ

60.00 kΩ 0.01 kΩ

600.0 kΩ 0.1 KΩ

6.000 MΩ 0.001 MΩ

50.0 MΩ 0.01 MΩ

[1] Accuracies 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

Accuracy 1587 and 1587T

+ (% of Rdg+Digits)

[1]

+

(0.9 % + 2) + (1.2 % + 2)

(1.5 % + 3) + (2.0 % + 3)

+

Accuracy 1577

+ (% of Rdg+Digits)

[1]

Diode Test (1587 and 1587T Only)

Diode Test Indication ..........................................Display voltage drop: 0.6 V at 1.0 mA nominal test current:

Accuracy .............................................................+(2 % + 3)

Continuity Test

Continuity Indication............................................Continuous audible tone for test resistance below 25 Ω and off above 100 Ω. Maximum

Open Circuit Voltage...........................................< 8.0 V

Short Circuit Current ...........................................1.0 mA typical

Overload Protection ............................................1000 V rms

Response Time...................................................> 1 m sec

Reading; 1000 Ω

34

Insulation Multimeters

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

Electrical Specifications

Frequency Measurement (1587 and 1587T Only)

Range Resolution

99.99 Hz 0.01 Hz + (0.1 % + 1)

999.9 Hz 0.1 Hz + (0.1 % + 1)

9.999 kHz 0.001 kHz + (0.1 % + 1)

99.99kHz 0.01 kHz + (0.1 % + 1)

Accuracy

(% of Rdg+Digits)

+

Frequency Counter Sensitivity

[1]

Input Range

V ac Sensitivity (RMS Sine Wave)

5 Hz to 20 kHz 20 kHz to 100 kHz

DC Trigger Levels

[1]

to 20 kHz

[2]

600.0 mV ac 100.0 mV 150.0 mV na

6.0 V 1.0 V 1.5 V -400.0 mV and 2.5 V

60.0 V 10.0 V 36.0 V 1.2 V and 4.0 V

600.0 V 100.0 V - 12.0 V and 40.0 V

1000.0 V 300.0 V - 12.0 V and 40.0 V

[1] Maximum input for specified accuracy = 10x range (1000 V max). Noise at low frequencies and amplitudes may affect accuracy.
[2] Usable to 100 kHz with full scale input.

Capacitance (1587 and 1587T Only)

Range Resolution

1000 nF 1 nF

10.00 µF 0.01 µF

100.0 µF 0.1 µF
9999 µF 1 µF

Accuracy

(% of Rdg+Digits)

+

(1.2 % + 2)

+

(1.2 % +/- 90 counts)

+

35

1587/1577

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

Users Manual

Temperature Measurement (1587 and 1587T Only)

[1]

Range Resolution

-40 ° C to 537 ° C 0.1 °C

-40 ° F to 998 ° F 0.1 °F

[1] Accuracies apply following 90 minutes settling time after a change in the ambient temperature of the instrument.

Accuracy

± (% of Rdg+Digits)

(1 % + 10 counts)

+

(1 % + 18 counts)

+

Insulation Specifications

Measurement Range

Model 1587.................................................0.01 MΩ to 2 GΩ

Model 1577.................................................0.1 MΩ to 600 MΩ

Model 1587T...............................................0.01 MΩ to 100 MΩ

Test Voltages

Model 1587.................................................50, 100, 250, 500, 1000 V

Model 1577.................................................500, 1000 V

Model 1587T...............................................50, 100 V

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.

36

Insulation Multimeters

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

Electrical Specifications

Model 1587

Output Voltage Display Range Resolution Test Current

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 %)

0.01 to 6.00 MΩ 0.01 MΩ

6.0 to 50.0 MΩ 0.1 MΩ

0.01 to 6.00 MΩ 0.01 MΩ

6.0 to 60.0 MΩ 0.1 MΩ
60 to 100 MΩ 1 MΩ

0.1 to 60.0 MΩ 0.1 MΩ
60 to 250 MΩ 1 MΩ

0.1 to 60.0 MΩ 0.1 MΩ
60 to 500 MΩ 1 MΩ

0.1 to 60.0 MΩ 0.1 MΩ
60 to 600 MΩ 1 MΩ

0.6 to 2.0 GΩ 100 MΩ

1 mA @ 50 kΩ ± (3 % + 5 counts)

1 mA @ 100 kΩ ± (3 % + 5 counts)

1 mA @ 250 kΩ ± (1.5 % + 5 counts)

1 mA @ 500 kΩ ± (1.5 % + 5 counts)

1 mA @ 1 MΩ

Resistance Accuracy

± (% of Rdg + Digits)

± (1.5 % + 5 counts)

± (10 % + 3 counts)

Model 1577

Output Voltage Display Range Resolution Test Current

(0 % to + 20 %)

1000 V

(0 % to + 20 %)

0.1 to 60.0 MΩ 0.1 MΩ 500 V
60 to 500 MΩ 1 MΩ

0.1 to 60.0 MΩ 0.1 MΩ 1 mA @ 1 MΩ

1 mA @ 500 kΩ

Resistance Accuracy

± (% of Rdg + Digits)

± (2.0 % + 5 counts)

± (2.0 % + 5 counts)

37

1587/1577

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

Users Manual

Model 1587T

Output Voltage Display Range Resolution Test Current

50 V

(0 % to + 20 %)

100 V

(0 % to + 20 %)

0.01 to 6.00 Me 0.01 Me

6.0 to 50.0 Me 0.1 Me

0.01 to 6.00 Me 0.01 Me

6.0 to 60.0 Me 0.1 Me
60 to 100 Me 1 Me

1 mA @ 50 ke ± (3 % + 5 counts)

1 mA @ 100 ke ± (3 % + 5 counts)

Resistance Accuracy

± (% of Rdg + Digits)

38