Fluke 1750 B Users Manual

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3210-PR-TF-II
Thin Flex Current Probe
Instruction Sheet

Introduction
The 3210-PR-TF-II Flex Thin Flex Current Probe (the Probe or Product)
is an ac current probe utilizing the Rogowski principle. The Probe is
designed for use with the Fluke 1750 Power Recorder and measures
th
current from very low frequencies up to the 50 harmonic of a 50/60 Hz
power supply. The flexible and lightweight measuring head allows quick
and easy installation in hard to reach areas and around large conductors.

Contacting Fluke
To contact Fluke, call one of the following telephone numbers:
•
Technical Support USA: 1-800-44-FLUKE (1-800-443-5853)
•
Calibration/Repair USA: 1-888-99-FLUKE (1-888-993-5853)
•
Canada: 1-800-36-FLUKE (1-800-363-5853)
•
Europe: +31 402-675-200
•
Japan: +81-3-6714-3114
•
Singapore: +65-6799-5566
•
Anywhere in the world: +1-425-446-5500
Or, visit Fluke's website at www.fluke.com.
To register your product, visit http://register.fluke.com.
To view, print, or download the latest manual supplement, visit
http://us.fluke.com/usen/support/manuals.

PN 3986209
April 2011, Rev.1, 2/15
2011-2015 Fluke Corporation. All rights reserved. Specifications are subject to
change without notice. All product names are trademarks of their respective
companies.

3210-PR-TF English Instruction Sheet
Page 2

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







Description
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.
Important Information. See manual.
Hazardous Voltage. Risk of electric shock.
Double insulation.



Do not apply to or remove from hazardous, live
conductors without taking additional protective
measures.



Canadian Standards Association- Complies with
relevant North American Safety Standards.




Complies with the relevant European standards.
Conforms to relevant Australian standards.



Measurement Category III is applicable to test and
measuring circuits connected to the distribution part of
the building’s low-voltage MAINS installation.



Measurement Category IV is applicable to test and
measuring circuits connected at the source of the
building’s low-voltage MAINS installation.

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 Probe or the test equipment.
 Warning
To prevent possible electrical shock, fire, or personal injury:
•
The Probe is to only be used and handled by qualified
personnel.
•
Always connect to display device before it is installed
around the conductor.
•
Use the Product only as specified, or the protection
supplied by the Product can be compromised.
•
High voltages and currents can be present in adjacent
circuits under test.

3210-PR-TF English Instruction Sheet
Page 3

•

•
•
•

•
•
•
•
•
•

Before each use, examine the Product. Look for cracks or
missing pieces of the clamp housing or output cable
insulation. Also look for loose or weakened components.
Carefully examine the insulation around the jaws.
Do not use if the flexible jaw wear indicator shows wear
(indicated by a contrasting color on the inner insulation).
Do not use and disable the Product if it is damaged.
Comply with local and national safety codes. Use
personal protective equipment (approved rubber gloves,
face protection, and flame-resistant clothes) to prevent
shock and arc blast injury where hazardous live
conductors are exposed.
Do not work alone.
Limit operation to the specified measurement category,
voltage, or amperage ratings.
De-energize the circuit or wear personal protective
equipment in compliance with local requirements before
you apply or remove the Flexible Current Probe.
Do not touch voltages > 30 V ac rms, 42 V ac peak, or
60 V dc.
Equipment is to be used in 600 V CAT IV and 1000 V
CAT III environments.
Do not use the Product around explosive gas, vapor, or in
damp or wet environments.

Operating Instructions
1.
2.

3.
4.

5.

Connect the Probe to the 1750 via the 1750 current input jack.
Wear protective equipment or de-energize the circuit and place
the Probe around the conductor under test. To lock the coil,
see Figure 1.
Re-energize the circuit.
Observe and take measurements as required. Positive output
indicates that the current flow is in the direction shown by the
arrow on the Probe.
Wear protective equipment or de-energize the circuit before
removal of the Probe.

fig1.eps

Figure 1. Locking the Coil

Maintenance
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.

3210-PR-TF English Instruction Sheet
Page 4

Specifications
Electrical Characteristics
Measurement Range
Frequency Range
Accuracy (@ 25 °C)
Linearity (10 % to 100 % of range)
Temperature Coefficient
Position Sensitivity (with cable >25
mm from the coupling)
External Field (with cable >200 mm
from the head)
Working Voltage (see Safety
Standards)

20 to 1000 A (with a crest factor ≤3)
40 Hz to 5 kHz
±1 % of reading
±0.2 % of reading
±0.05 % of reading per °C
±2 % of reading
±1 % of reading
1000 V ac rms or dc

General Characteristics
Probe Cable Length
Probe Cable Diameter
Transducer Bend Radius (min)
Output Cable
Output Connector
Operating Temperature Range

Storage Temperature Range
Operating Humidity
Altitude
Degree of ingress protection

24 in. (610 mm)
0.3 in. (8 mm)
1.5 in. (38.1 mm)
2 core screened, double insulated, 3
meters long
LEMO 6 pin male connector
-4 to +158 °F (-20 to +70 °C) (the
temperature of the conductor under test
shall not exceed 176 °F /80 °C)
-40 to 176 °F (-40 to +80 °C)
15 % to 85 % (non condensing)
max 6562 ft. (2000 m)
IP40 (IEC 60529)

Safety Standards
IEC 61010-1: Pollution Degree 2 / IEC 61010-2-032: 1000 V CAT III
Use of the Probe on uninsulated conductors is limited to 1000 V under CAT III
installations and 600 V under CAT IV installations ac rms or dc and frequencies
below 1 kHz. 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
Fluke Europe B.V.
P.O. Box 9090
P.O. Box 1186
Everett, WA 98206-9090
5602 BD Eindhoven
U.S.A.
The Netherlands
11/99



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