Fluke 87V Ex User manual

®
87V Ex
True-rms Multimeter
Users Manual
PN 2518115
December 2005
2005 Fluke Corporation. All rights reserved. Printed in USA
All product names are trademarks of their respective companies.

LIMITED WARRANTY AND LIMITATION OF LIABILITY
Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is one year 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 non-defective media. Fluke does not warrant that software will be error
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. Warranty 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 damage 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 use outside the product’s specified
rating, or normal wear and tear of mechanical components, Fluke will provide an estimate of repair 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 FOR 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 consequential 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

i
Table of Contents
Title Page
Introduction.....................................................................................................................1
Contacting Fluke ............................................................................................................1
General Safety Information.............................................................................................2
ATEX Safety Information................................................................................................2
Errors and Load Restrictions .....................................................................................5
Ex-Certification Data..................................................................................................6
The Meter's Features .....................................................................................................8
Power-Up Options .....................................................................................................15
Automatic Power-Off .................................................................................................15
Input AlertFeature..................................................................................................15
Making Measurements ...................................................................................................15
Measuring AC and DC Voltage..................................................................................15
Zero Input Behavior of True-rms Meters....................................................................17
Low Pass Filter..........................................................................................................17
Measuring Temperature ............................................................................................18
Testing for Continuity.................................................................................................18
Measuring Resistance ...............................................................................................20
Using Conductance for High Resistance or Leakage Tests.......................................22
Measuring Capacitance.............................................................................................23
Testing Diodes...........................................................................................................24
Measuring AC or DC Current.....................................................................................26
Measuring Frequency................................................................................................29

87V Ex
Users Manual
ii
Measuring Duty Cycle ............................................................................................... 31
Determining Pulse Width........................................................................................... 32
Bar Graph ...................................................................................................................... 32
Zoom Mode (Power Up Option Only)........................................................................ 33
Uses for the Zoom Mode........................................................................................... 33
HiRes Mode ................................................................................................................... 33
MIN MAX Recording Mode ............................................................................................ 34
Smooth Feature (Power Up Option Only) ...................................................................... 34
AutoHOLD Mode........................................................................................................... 36
Relative Mode................................................................................................................ 36
Maintenance .................................................................................................................. 37
General Maintenance................................................................................................ 37
Fuse Test .................................................................................................................. 37
Replacing the Battery................................................................................................ 38
Replacing the Fuses ................................................................................................. 39
Service and Parts........................................................................................................... 40
General Specifications ................................................................................................... 45
Detailed Specifications................................................................................................... 46
AC Voltage Function ................................................................................................. 46
DC Voltage, Resistance, and Conductance Function ............................................... 47
Temperature ............................................................................................................. 48
Current Function ....................................................................................................... 49
Capacitance and Diode Function .............................................................................. 50
Frequency Counter ................................................................................................... 50
Frequency Counter Sensitivity and Trigger Levels.................................................... 51
Electrical Characteristics of the Terminals ................................................................ 52
MIN MAX Recording ................................................................................................. 53

iii
List of Tables
Table Title Page
1. Electrical Symbols ................................................................................................................. 7
2. Inputs..................................................................................................................................... 8
3. Rotary Switch Positions......................................................................................................... 9
4. Pushbuttons .......................................................................................................................... 10
5. Display Features.................................................................................................................... 13
6. Functions and Trigger Levels for Frequency Measurements................................................. 30
7. MIN MAX Functions............................................................................................................... 35
8. Approved Batteries................................................................................................................ 39
9. Replacement Parts................................................................................................................ 42
10. Specified Accessories ........................................................................................................... 44

87V Ex
Users Manual
iv

v
List of Figures
Figure Title Page
1. Display Features.................................................................................................................... 13
2. Measuring AC and DC Voltage.............................................................................................. 16
3. Low Pass Filter...................................................................................................................... 17
4. Testing for Continuity............................................................................................................. 19
5. Measuring Resistance........................................................................................................... 21
6. Measuring Capacitance......................................................................................................... 23
7. Testing a Diode ..................................................................................................................... 25
8. Measuring Current................................................................................................................. 27
9. Components of Duty Cycle Measurements ........................................................................... 31
10. Testing the Current Fuses ..................................................................................................... 38
11. Battery and Fuse Replacement ............................................................................................. 41
12. Replaceable Parts ................................................................................................................. 43

87V Ex
Users Manual
vi

1
True-rms Multimeter
Introduction
XWWarning
Read "Safety Information" before you use the
Meter.
The Fluke 87V Ex Intrinsically Safe True-rms Multimeter
(hereafter referred to as “the Meter”) is a compact and
easy to operate measurement tool for electrical and
electronic circuits.
The Meter is designed for use in potentially explosive
areas of Zone 1 or 2 as specified in Directive 1999/92/EC
(ATEX 137). Failure to follow these instructions may have
dangerous consequences.
Read the entire Users Manual before using the
Meter.
Contacting Fluke
To contact Fluke, call one of the following telephone
numbers:
USA: 1-888-44-FLUKE (1-888-443-5853)
Canada: 1-800-36-FLUKE (1-800-363-5853)
Europe: [phone]
Japan: [phone]
Singapore: [phone]
Anywhere in the world: [phone]
For USA Service: 1-888-99-FLUKE
(1-888-993-5853)
Or, visit Fluke's Web site at www.fluke.com.
To register your product, visit register.fluke.com

87V Ex
Users Manual
2
General Safety Information
The Meter complies with:
•EN61010-1:2001
•ANSI/ISA S82.01-2004
•CAN/CSA C22.2 No. 1010.1:2004
•Measurement Category III, 1000V, Pollution
Degree 2
•Measurement Category IV, 600V, Pollution
Degree 2
•Industrial use in potentially explosive areas of
zone 1 or 2, according to ATEX requirements
(ATEX 137)(see the ATEX safety instructions &
regulations section)
In this manual, a Warning identifies conditions and
actions that pose hazards to the user. A Caution
identifies conditions and actions that may damage the
Meter or the equipment under test.
Electrical symbols used on the Meter and in this manual
are explained in Table 1.
To ensure safe operation of the Meter, fully observe all
instructions and warnings contained in this manual.
ATEX Safety Information
This manual contains information and safety regulations
that must be followed to ensure safe, reliable operation of
the Meter in hazardous areas under the described
conditions. Failure to follow the information and
instructions can have dangerous consequences, or may
contravene applicable legislation.
Please take the time to read through this manual before
you start using the Meter.
To ensure safe operation of this Meter, fully observe all
instructions and warnings contained in the manual. In
case of doubt (due to translation and/or printing errors),
refer to the original English manual.
XW Warning
To avoid possible electric shock or personal
injury while working in EX-HAZARDOUS
areas, follow these guidelines:
•Do not open the Meter while in an Ex-
hazardous area.
•Change the Meter’s battery only outside
Ex-hazardous areas.
•Do not carry additional or spare batteries
in Ex-hazardous areas.
•Use only type-approved batteries in the
Meter. Refer to the “Replacing the Battery”
section for a list of approved batteries.
•Do not replace fuses while in an Ex-
hazardous area.

True-rms Multimeter
ATEX Safety Information
3
•Use only fuses approved for Ex-hazardous
areas in this Meter. See the “Replacing the
Fuses” section for a list of approved
fuses.
•After using the Meter on a non-i.s.
protected circuit, observe a 3-minute rest
period before taking the Meter into an Ex-
hazardous area.
•The Meter must be completely and
securely fitted in the red holster while it is
in an Ex-hazardous area.
•Do not open function buttons inside the
Meter. Interference or damage to any of
these elements removes the Ex-
protection.
•Observe the tolerances or threshold
values found in the “Specifications”
section of this manual.
•Use only allowed accessories with this
Meter in Ex-hazardous areas. See a listing
of allowed Fluke accessories at
www.Fluke.com.
•Avoid using the Meter in aggressive acidic
or alkaline solutions.
•Do not use the Meter in zone 0.
•Never measure voltages greater than 65
volts in an Ex-hazardous area.
•Never measure currents greater than 5
amps while using the Meter in an Ex-
hazardous area.
•Servicing not covered in this manual
should be performed only by the
manufacturer. Repair or service by others
may void the ATEX certification of this
Meter.
XWWarning
To avoid possible electric shock or personal
injury in ALL areas of operation, follow these
guidelines:
•Use this Meter only as specified in this
manual or the protection provided by the
Meter might be impaired.
•See the “ATEX Safety Information”
section for additional warnings on meter
use in hazardous areas.
•Do not use the Meter if it is damaged.
Before you use the Meter, inspect the
case. Look for cracks or missing plastic.
Pay particular attention to the insulation
surrounding the connectors.

87V Ex
Users Manual
4
•Ensure the battery door is closed and
latched whenever operating the Meter.
•Replace the battery as soon as the
battery indicator (M) appears. See
“Replacing the Battery” section for
instructions and a list of approved
batteries.
•Remove test leads from the Meter before
opening the battery door.
•Inspect the test leads for damaged
insulation or exposed metal. Check the
test leads for continuity. Replace
damaged leads before using the Meter.
•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 when working with voltages
above 30 V ac rms, 42 V ac peak, or 60 V
dc. These voltages pose a shock hazard.
•Use only the replacement fuses specified
in this Users Manual. See “Replacing the
Fuses” section for instructions and a list
of approved fuses.
•Use the proper terminals, function, and
range for measurements.
•Avoid working alone.
•When measuring current, turn off circuit
power before connecting the Meter to the
circuit. Remember to place the Meter in
series with the circuit.
•When making electrical connections,
connect the common test lead before
connecting the live test lead; when
disconnecting, disconnect the live test
lead before disconnecting the common
test lead.
•Do not use the Meter if it operates
abnormally. Protection may be impaired.
When in doubt, have the Meter serviced.
•Use only a single 9 volt battery, properly
installed in the Meter case, to power the
Meter. See “Replacing the Battery”
section for instructions and a list of
approved batteries.
•Only use replacement parts listed in the
“Parts” section of this manual. Return
the Meter to the manufacturer for all
other service needs.
•When using probes, keep your
fingers behind the probe’s finger
guards.

True-rms Multimeter
ATEX Safety Information
5
•Do not use the Low Pass Filter option to
verify the presence of hazardous
voltages. Voltages greater than what is
indicated may be present. First, make a
voltage measurement without the filter to
detect the possible presence of
hazardous voltage. Then select the filter
function.
•Do not use in wet environments.
WCaution
To avoid possible damage to the Meter or to
the equipment under test, follow these
guidelines:
•Disconnect circuit power and discharge
all high-voltage capacitors before testing
resistance, continuity, diodes, or
capacitance.
•Use the proper terminals, function, and
range for all measurements.
•Before measuring current, check the
Meter's fuses. (See "Fuse Test".)
•Observe all safety regulations and read
the certificate.
Errors and Load Restrictions
If there is any question that the safety or integrity of this
Meter is compromised, remove it from operation and the
Ex-hazardous area immediately. Also, take whatever
actions are necessary to prevent the Meter from being
accidentally placed into operation before it can be
examined and approved for operation. It is recommended
the Meter be returned to the manufacturer for
examination.
The safety and reliability of the Meter may be at risk and
discontinue use of the Meter if:
•Visible damage is evident on the Meter’s housing.
•The Meter has been subjected to excessive loads for
which it is not designed.
•The Meter has been improperly stored.
•The Meter has sustained damage in transit.
•Illegible inscriptions or lettering appears on the Meter.
•A Meter malfunction occurs.
•Obvious measuring inaccuracies occur.
•Measurements/simulations are no longer possible with
the Meter.
•Permitted tolerances or threshold values have been
exceeded.

87V Ex
Users Manual
6
Ex-Certification Data
•EC-type certificate no.: ZELM 05 ATEX 0274
•Ex-designation: (II 2 G EEx ia IIC T4
Measuring range: 65 V Max in Ex-hazardous areas.
5 A Max. in Ex-hazardous areas
•Power supply: 9 Volt block type, IEC 6LR61 (See
Table 8 for approved batteries.)
•Measuring protected electric circuits:
Voltage-Mass (V/Ω- COM):
Ui = 65 V Uo = 10.35 V Co = 2.52 µF
Io = 4.0 mA. Lo= 100 mH
Current-Mass (µA/mA & A - COM):
li = 5 A Uo=2.8 V Co = 1000 µF
Io = 68 mA Lo = 8 mH.
•Approved for Zones 2 and 1, device group II, gas group
C potentially explosive gases, vapours and mist,
temperature class T4.

True-rms Multimeter
ATEX Safety Information
7
Table 1. Electrical Symbols
BAC (Alternating Current) JEarth ground
FDC (Direct Current) IFuse
ECapacitance GDiode
MBattery. Low battery when displayed. R Continuity test or continuity beeper tone.
X Hazardous voltage TDouble insulated
WRisk of Danger. Important information. See
Users Manual. =
Do not mix with solid waste stream. Dispose
using a qualified recycler or hazardous material
handler.
CAT
III
IEC Measurement Category III
CAT III equipment is designed to protect
against transients in equipment in fixed-
equipment installations, such as distribution
panels, feeders and short branch circuits, and
lighting systems in large buildings.
CAT
IV
IEC Measurement Category IV
CAT IV equipment is designed to protect
against transients from the primary supply
level, such as an electricity meter or an
overhead or underground utility service.
PConforms to European Union directives. )Conforms to relevant Canadian and U.S.
Standards.
sInspected and licensed by TÜV Product
Services. ( Conforms to ATEX directive.

87V Ex
Users Manual
8
The Meter's Features
Tables 2 through 5 and Figure 1 briefly describe the Meter's features.
Table 2. Inputs
Terminal Description
A Input for 0 A to 10.00 A current (20 A overload for 30 seconds maximum), current frequency, and duty cycle
measurements.
mA µ A Input for 0 µA to 400 mA current measurements (600 mA for 18 hrs.) and current frequency and duty cycle.
COM Return terminal for all measurements.
I Input for voltage, continuity, resistance, diode, capacitance, frequency, temperature, and duty cycle
measurements.

True-rms Multimeter
The Meter's Features
9
Table 3. Rotary Switch Positions
Switch Position Function
Any Position When the Meter is turned on, the Meter model number briefly appears on the display.
J AC voltage measurement
Press Afor low pass filter (K).
LDC voltage measurement
600 mV dc voltage range
M
Press Afor temperature (T).
N Press Efor continuity test.
eResistance measurement
Press Afor capacitance measurement.
O Diode test
P AC current measurements from 0 mA to 10.00 A
Press Afor dc current measurements, from 0 mA to 10.00 A.
Q AC current measurements from 0 µA to 6000 µA
Press Afor dc current measurements from 0 µA to 6000 µA.

87V Ex
Users Manual
10
Table 4. Pushbuttons
Button Switch
Positon Function
N Selects capacitance
M Selects temperature
J Selects ac low pass filter function
P Switches between dc and ac current
Q Switches between dc and ac current
A
(Yellow)
Power-up Disables automatic power-off feature (Meter normally powers off in 30 minutes).
The Meter reads “PoFF” until Ais released.
B Any switch
position
Power-up
Starts recording of minimum and maximum values. Steps the display through MAX, MIN, AVG
(average), and present readings. Cancels MIN MAX (hold for 1 second)
Enables the Meter’s calibration mode and prompts for a password.
The Meter reads “CAL“ and enters calibration mode. See 87V Ex Service Information.
C Any switch
position Switches between the ranges available for the selected function. To return to autoranging, hold the button down for 1 second.
M
Power-up
Switches between °C and °F.
Enables the Meter’s smoothing feature. The Meter reads “5___” until Cis released.

True-rms Multimeter
The Meter's Features
11
Table 4. Pushbuttons (cont.)
Button Switch
Positon Function
D Any switch
position
MIN MAX
recording
Frequency
counter
Power-up
AutoHOLD (formerly TouchHold) captures the present reading on the display. When a new,
stable reading is detected, the Meter beeps and displays the new reading.
Stops and starts recording without erasing recorded values.
Stops and starts the frequency counter.
Turns on all LCD segments.
H Any switch
position
Turns the backlight on, makes it brighter, and turns it off.
Hold Hdown for one second to enter the HiRes digit mode. The “HiRes” icon appears on the
display. To return to the 3-1/2 digit mode, hold Hdown for one second. HiRes=19,999
E Continuity
ReE
MIN MAX
recording
Hz, Duty
Cycle
Power-up
Turns the continuity beeper on and off
Switches between Peak (250 µs) and Normal (100 ms) response times.
Toggles the meter to trigger on positive or negative slope.
Disables the beeper for all functions. The Meter reads “bEEP” until Eis released.

87V Ex
Users Manual
12
Table 4. Pushbuttons (cont.)
Button Switch Positon Function
F
(Relative
mode)
Any switch
position
Power-up
Stores the present reading as a reference for subsequent readings. The display is
zeroed, and the stored reading is subtracted from all subsequent readings.
Enables zoom mode for the bar graph. The Meter reads “2rEL” until Fis released.
G
Any switch
position except
diode test
Power-up
Press Gfor frequency measurements.
Starts the frequency counter.
Press again to enter duty cycle mode.
Enables the Meter’s high impedance mode when the mV dc function is used.
The Meter reads “Hi2” until Gis released.