Fluke 376 FC, 375 FC, 374 FC, 902 FC User Manual
374 FC/375 FC/376 FC/
902 FC
Clamp Meter
Calibration Manual
February 2017 Rev. 1, 9/19
©2017-2019 Fluke Corporation. All rights reserved.
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 three years 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..
11/99
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
ООО «Флюк СИАЙЭС»
125167, г. Москва,
Ленинградский проспект дом 37,
корпус 9, подъезд 4, 1 этаж
Table of Contents
Title Page
Introduction ..................................................................................................................................... 1
How to Contact Fluke ...................................................................................................................... 1
Safety Information ........................................................................................................................... 2
The Product .................................................................................................................................... 4
374 FC/375 FC/376 FC Electrical Specifications ............................................................................ 4
AC Current via Jaw ........................................................................................................... 4
AC Current via Flexible Current Probe ............................................................................. 4
Position Sensitivity .................................................................................................... 5
DC Current ................................................................................................................ 5
AC Voltage ................................................................................................................ 5
DC Voltage ................................................................................................................ 5
mV dc (375 FC and 376 FC) ..................................................................................... 5
Frequency via Jaw .................................................................................................... 6
Frequency via Flexible Current Probe ....................................................................... 6
Resistance ................................................................................................................. 6
Capacitance .............................................................................................................. 6
902 FC Electrical Specifications ..................................................................................................... 6
Mechanical Specifications ................................................................................................ 7
Environmental Specifications ........................................................................................... 7
Performance Tests .......................................................................................................................... 8
Calibration Adjustment .................................................................................................................... 9
Calibration Setup .............................................................................................................. 11
VAC Adjustment Procedure .............................................................................................. 12
VDC/mVDC Adjustment Procedure ........................................................................... 13
Ohm/Cap Adjustment Procedure .............................................................................. 13
AAC Adjustment Procedure (374 FC, 375 FC, 376 FC) ........................................... 14
AAC Adjustment Procedure (902 FC) ...................................................................... 14
ADC Adjustment Procedure (374 FC, 375 FC, 376 FC) .......................................... 14
uADC Adjustment Procedure (902 FC) ..................................................................... 14
ROGO Adjustment Procedure (374 FC, 375 FC, 376 FC) ....................................... 15
Temperature Adjustment Procedure (902 FC) ......................................................... 15
902 FC Temperature Zero Procedure ....................................................................... 15
Maintenance .................................................................................................................................. 15
Clean the Product .............................................................................................................15
Battery Replacement ........................................................................................................ 15
Replacement Parts ........................................................................................................... 16
i
374 FC/375 FC/376 FC/902 FC
Calibration Manual
ii
Introduction
To prevent electric shock or personal injury, read the Safety Information
before you use the Product.
This manual provides all the information necessary to perform basic maintenance and make calibration adjustments
for the 374 FC/375 FC/376 FC and the 902 FC Clamp Meters (the Product). All figures show the 376 FC unless
noted.
For complete operating instructions, refer to the 375 FC/375 FC/376 FC Users Manual and the 902 FC Users Manual
at www.fluke.com
.
How to Contact Fluke
To contact Fluke, use one of these 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
• China: +86-400-810-3435
• Brazil: +55-11-3530-8901
• 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
XW Warning
.
.
.
1
374 FC/375 FC/376 FC and 902 FC
Calibration Manual
Safety Information
A Warning identifies hazardous conditions and procedures that are dangerous to the user. A Caution identifies
conditions and procedures that can cause damage to the Product or the equipment under test.
To prevent possible electrical shock, fire, or personal injury:
•
Carefully read all instructions.
•
Read all safety information before you use the Product.
•
Use the Product only as specified, or the protection supplied by the Product can
be compromised.
•
Do not use the Product around explosive gas, vapor, or in damp or wet
environments.
•
Do not use the Product if it operates incorrectly.
•
Do not use the Product if it is altered or damaged.
•
Disable the product if it is damaged.
•
Prior to use, ensure the Product is clean, dry, and in good repair. Do not use the
Product if has been exposed to water, cleaning solutions, battery electrolyte
leakage, or other contaminants that may have entered the enclosure. These
contaminants can reduce or eliminate the protection provided by the Product
against electric shock or arc explosion. Have the product dried, cleaned, or
repaired as necessary to ensure continued safe operation.
•
Use only correct measurement category (CAT), voltage, and amperage rated
probes, test leads, and adapters for the measurement.
•
Do not exceed the Measurement Category (CAT) rating of the lowest rated
individual component of a Product, probe, or accessory.
•
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.
•
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 test leads if they are damaged. Examine the test leads for damaged
insulation and measure a known voltage.
•
Do not touch voltages >30 V ac rms, 42 V ac peak, or 60 V dc.
•
Do not measure current while the test leads are in the input jacks.
•
Do not apply more than the rated voltage, between the terminals or between
each terminal and earth ground.
•
De-energize the circuit or wear personal protective equipment in compliance
with local requirements before you apply or remove the Flexible Current Probe.
•
Measure a known voltage first to make sure that the Product operates correctly.
•
Limit operation to the specified measurement category, voltage, or amperage
ratings.
•
The battery door must be closed and locked before you operate the Product.
•
Connect the common test lead before the live test lead and remove the live test
lead before the common test lead.
•
Remove all probes, test leads, and accessories before the battery door is
opened.
•
Keep fingers behind the finger guards on the probes.
•
Hold the Product behind the tactile barrier.
•
Replace the batteries when the low battery indicator shows to prevent incorrect
measurements.
XW Warning
2
Loading...