Fluke 789 Original instructions

PN 4276668
August 2012
© 2012 Fluke Corporation. All rights reserved.
All product names are trademarks of their respective companies.
789
ProcessMeter
Safety Information
Go to www.fluke.com to register your product and find more
information.
A Warning identifies conditions and procedures that are dangerous to
the user.
 Warning
To prevent possible electrical shock, fire, or personal injury:
•Read “Safety Information” before using the meter.
•Do not use the meter if it is damaged. Before using the
meter, inspect the case. Look for cracks or missing
plastic. Pay particular attention to the insulation
surrounding the connectors.
•Make sure the battery door is closed and latched
before operating the meter.
•Remove test leads from the meter before opening the
battery door.
•Inspect the test leads for damaged insulation or
exposed metal. Check test lead continuity. Replace
damaged test leads before using the meter.
•Do not use the meter if it operates abnormally.
Protection may be impaired. When in doubt, have the
meter serviced.
•Do not operate the meter around explosive gas, vapor,
or dust.
•Do not use in a damp or wet environment.
•Use only type AA batteries, properly installed in the
meter case, to power the meter.
•When servicing the meter, use only specified
replacement parts.
•Use caution when working above 30 V ac rms, 42 V ac
pk, or 60 V dc. Such voltages pose a shock hazard.
•When using the probes, keep fingers behind the finger
guards on the probes.
•Connect the common test lead before connecting the
live test lead. When disconnecting test leads,
disconnect the live test lead first.

•Do not use AutoHold to determine if dangerous voltage
is present. AutoHold will not capture unstable or noisy
readings.
•To avoid false readings, which could lead to possible
electric shock or personal injury, replace the battery as
soon as the battery indicator () appears.
•Remove test leads from the meter before opening the
battery door.
•Close and latch the battery door before using the
meter.
•To avoid personal injury or damage to the meter, use
only the specified replacement fuse, 440 mA 1000 V
fast-blow, Fluke PN 943121.
•When the TL175 is used with instruments or other
accessories, the lowest category rating of the
combination applies. One exception is when the probe
is used with the AC172 or AC175.

Safety Specifications
Battery Type: 1.5 V, 0-15 mA, AA, Alkaline
Temperature:
Operating temperature: -20 °C to 55 °C
Storage temperature: -40 °C to 60 °C
Altitude: Operating altitude: 2000 meters maximum
Frequency Overload Protection: 106V Hz max
Symbols
Symbol Description

Risk of Danger. Important information. See Manual.

Conforms to European Union directives

Conforms to relevant North American Safety
Standards

Battery

Hazardous voltage

Conforms to relevant Australian EMC requirements

Fuse
CAT III
Measurement Category III is applicable to test and
measuring circuits connected to the distribution part
of the building’s low-voltage MAINS installation.
CAT IV Measurement Category IV is applicable to test and
measuring circuits connected at the source of the
building’s low-voltage MAINS installation.

Double Insulation

Alternating current

Direct current

To 610101
2nd Edition
Meets Underwriters’ Laboratories safety
requirements

Earth ground

Inspected and licensed by TÜV Product
Services

This product complies with the WEEE Directive
(2002/96/EC) marking requirements. The affixed
label indicates that you must not discard this
electrical/electronic product in domestic household
waste. Product Category: With reference to the
equipment types in the WEEE Directive Annex I, this
product is classed as category 9 "Monitoring and
Control Instrumentation" product. Do not dispose of
this product as unsorted municipal waste. Go to
Fluke’s website for recycling information.

LIMITED WARRANTY &
LIMITATION OF LIABILITY
This Fluke product will be free from defects in material and
workmanship for three years from the date of purchase. This warranty
does not cover disposable batteries or damage from accident,
neglect, misuse or abnormal conditions of operation or handling.
Resellers are not authorized to extend any other warranty on Fluke’s
behalf. To obtain service during the warranty period, send your
defective meter to the nearest Fluke Authorized Service Center with a
description of the problem.
THIS WARRANTY IS YOUR ONLY REMEDY. NO OTHER
WARRANTIES, SUCH AS FITNESS FOR A PARTICULAR
PURPOSE, ARE EXPRESSED OR IMPLIED. FLUKE IS NOT LIABLE
FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES OR LOSSES, ARISING FROM ANY
CAUSE OR THEORY.
Since some states or countries do not allow the exclusion or limitation
of an implied warranty or of incidental or consequential damages, this
limitation of liability may not apply to you.
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