Fluke 1750, 1750-B, 1750-TF User Manual

3110-PR

Flex Current Probe

Instruction Sheet

Introduction

The Fluke 3110-PR Flex Current Probe (the Probe) is an ac
current probe utilizing the Rogowski principle. After appropriate
signal conditioning, it can be used with the Fluke 1750 to
measure current from very low frequencies up to 15 kHz. The
flexible and lightweight measuring head allows quick and easy
installation in hard to reach areas and with large conductors.

The Probe is designed for use with the Fluke 1750 Power
Recorder.

®

Contacting Fluke

To contact Fluke, call:

1-888-993-5853 in USA
1-800-363-5853 in Canada
[phone] in Europe
[phone] in Japan
[phone] in Singapore
[phone] from anywhere in the world

Or visit Fluke’s Web site at: www.fluke.com

To register your product, visit http://register.fluke.com

PN 3039177
February 2008
©2008 Fluke Corporation. All rights reserved. Product specifications are
subject to change without notice. Printed in the U.K.

Symbols

The table below lists the symbols used on the Probe and/or in
this instruction sheet.

Symbol Description

~

W
X

T

-

)

P
;

Do not dispose of this product as unsorted municipal
waste. Go to Fluke’s website for recycling information.

Risk of Danger. Important Information. See manual.

Hazardous Voltage. Risk of electric shock.

Double insulation.

Do not apply to or remove from hazardous, live
conductors.

Canadian Standards Association: Conforms to relevant
Canadian and U.S. standards.

Complies with the relevant European standards.

Conforms to relevant Australian standards.

Safety Instructions

Please read this section carefully. It will familiarize you with the
most important safety instructions for handling the Probe. In this
instruction sheet, a Warning identifies conditions and actions
that pose hazard(s) to the user. A Caution identifies conditions
and actions that may damage the calibrator or the test
instruments.

WX Warning

The Probe may only be used and handled by
qualified personnel. To avoid electric shock or
personal injury, follow these precautions:

• Do not apply to or remove from hazardous live

conductors without taking additional protective
measures.

• De-energize circuit during installation and

removal of Probe.

• High voltages and currents may be present in

adjacent circuits under test.

• Do not use the Probe if damaged. Always

connect to display device before it is installed
around the conductor.

• Use the Probe only as specified in the operating

instructions; otherwise the safety features may
not protect you.

• Adhere to local and national safety codes.

Individual protective equipment must be used
to prevent the shock and arc blast injury where
hazardous live conductors are exposed.

• Before each use, inspect the Probe. Look for

cracks or missing portions of the housing or
output cable insulation. Also look for loose or
weakened components.

• Use caution when working with voltages above

60 V dc, 30 V ac rms or 42 V ac peak. Such
voltages pose a shock hazard.

• Use of this equipment is designed to 600 V

CAT IV or 1000 V CAT III standards. 600 V CAT
IV or 1000 V CAT III equipment is designed to
protect against the transients in the equipment
in fixed equipment installations, such as
distribution panels, feeders and short branch
circuits, and the lighting systems in large
buildings.

• Do not use Probe in wet environments or in

locations that hazardous gases exist.

Operating Instructions

1. Connect the Probe to the 1750 via the 1750 current
input jack.

2. De-energize the circuit and place the Probe around the
conductor under test.

3. Observe and take measurements as required. Positive
output indicates that the current flow is in the direction
shown by the arrow on the Probe.

Cleaning

Clean the Probe periodically by wiping it with a damp cloth and
detergent. Do not use abrasive cleaners or solvents. Do not
immerse the Probe in liquids.

Specifications

Electrical Characteristics

Output Sensitivity @ 60 Hz
(@ output of the integrator)

Accuracy (@ 25 °C) ±1 % of reading
Linearity

(10 % to 100 % of range)
Temperature Coefficient ±0.05 % of reading per °C
Position Sensitivity (with cable >25

mm from the coupling)
External Field (with cable >200

mm from the head)

Working Voltage
(see Safety Standards)

20 mV/A

±0.2 % of reading

±2 % of reading

±1 % of reading

1000 V under CAT III conditions
and 600 V under CAT IV
conditions. (V ac rms or dc)

General Characteristics

Probe and Cable Material

Couplings Material Lati Latamid 6H-V0 Nylon

Probe Cable Length 24 in. (610 mm)

Probe Cable Diameter 0.49 in. (12.4 mm)

Transducer Bend Radius (min) 1.5 in. (38.1 mm)

Output Cable 2 core screened, 3 meters long

Output Connector LEMO 6 pin male connector

Operating Temperature Range -4 to +194 °F (-20 to +90 °C)

Storage Temperature Range -40 to 221 °F (-40 to +105 °C)

Operating Humidity 15 % to 85 % (non condensing)

Degree of protection IP40

Alcryn 2070NC, reinforced
insulation, UL94 V0, Color: RED

Safety Standards

• EN/IEC 61010-1 2001

• EN/IEC 61010-032

• Pollution Degree 2

Use of the Probe on uninsulated conductors is limited to 1000 V
ac rms or dc and frequencies below 1 kHz.

Please note that the safety rating for the output to ground is
limited to 30 V ac rms or dc by the connector specified.

LIMITED WARRANTY AND LIMITATION OF LIABILITY

This Fluke product will be free from defects in material and workmanship
for one year from the date of purchase. This warranty does not cover
fuses, disposable batteries, or damage from accident, neglect, misuse,
alteration, contamination, 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, 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 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

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