3310-PR/3312-PR
Flex Current Probe
Instruction Sheet
Introduction
The Fluke 3310-PR and 3312-PR Current Probes (“the Probe”)
are ac current probes utilizing the Rogowski principle. They 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 Probes are 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
+31-402-675-200 in Europe
+81-3-3434-0181 in Japan
+65-738-5655 in Singapore
+1-425-446-5500 from anywhere in the world
Or, visit Fluke’s Web site at www.fluke.com
To register your product, visit register.fluke.com
PN 3039192
July 2007
©2007 Fluke Corporation. All rights reserved. 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.
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
U.S. and Canadian 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 Probe 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:
• 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 and 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.
Maintenance
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)
0.4 mV/A
± 0.2 % of reading
± 2 % of reading
± 1 % of reading
1000 V ac rms or dc
General Characteristics
Probe and Cable Material
Couplings Material Lati Latamid 6H-V0 Nylon
Probe Cable Length
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
24 in. (610 mm) 3310-PR
48 in. (1220 mm) 3312-PR
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
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.
11/99
or dc by the connector specified.
Fluke Europe B.V.
P.O. Box 1186
5602 BD Eindhoven
The Netherlands
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