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Fluke 393 Calibration Manual
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393/393 FC
CAT III 1500V TRMS Clamp Meter
Calibration Manual
February 2022
© 2022 Fluke Corpor
ation.
All rights reserved.
Specifications are subject to
change without notice.
All product names are trad
emarks of their respective compan
ies.
2
Table of Contents
Table of Contents
3
Introduction
5
Contact Fluke
5
Safety
5
Static Awareness
6
Specifications
7
Performance Tests
7
AC Voltage
8
DC Voltage (0 V to 600 V)
8
DC High Voltage (600 V to 1500 V)
8
Two Calibrators Method
8
High Voltage DC Power Supply Method
9
MV DC Voltage
10
Resistance/Capacitance
10
DC Current, AC Current, and Iflex Verification
11
DC Current (Jaw with Amplifier and 25-Turn Coil)
11
AC Current (Jaw with Amplifier and 25-Turn Coil)
12
AC Current (Iflex Current Probe with Simulation)
12
AC Current (Iflex Current Probe with Amplifier and 25-Turn Coil or 50-Turn Coil)
14
Calibration Adjustment
18
Adjustment Setup
18
AC Adjustment Procedure
21
DC/MV DC Adjustment Procedure
22
DC Adjustment Procedure
22
MV DC Adjustment Procedure
23
Resistance/Capacitance Adjustment Procedure
23
Resistance Adjustment Procedure
24
Capacitance Adjustment Procedure
25
A DC Adjustment Procedure
25
A AC Jaw/Iflex Adjustment Procedure
26
A AC Jaw Adjustment Procedure
27
A AC Iflex Adjustment Procedure
28
Maintenance
29
Operation Checks
29
How to Clean the Case
30
Battery Replacement
30
Product Disposal
31
User Replaceable Parts
32
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Fluke 393 Specifications
General
Category
Clamp Meter
IP Rating
IP40
True RMS
Yes
Operating Temperature
-10 °C to +50 °C
Battery Type
2 x AA
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