Fluke 1621 接地電阻測試錶 3極/2極

Fluke 1621 接地電阻測試錶 3極/2極
Fluke 1621
Basic Earth Ground Tester
Technical Data
The Fluke 1621 is an easy-to-use earth ground tester.
The first line of defense in detecting reliable ground
connections, the unit features basic ground testing
methods including 3-pole Fall-of-Potential as well as
2-pole ground resistance. Its convenient size, rugged
holster, and large, clear LCD display make it an ideal
field earth tester, for most work environments. With
a simple user interface and intuitive functionality, the
Fluke 1621 is a handy tool for electrical contractors,
utility test engineers, and earth ground specialists.
• 3-pole Fall-of-Potential earth testing for basic measurements
• 2-pole resistance measurements for added versatility
• Easily capture values with single-button operation
• Ensure accurate measurements with automatic ‘noise’ voltage detection
• Hazardous voltage warning offers increased user protection
• Clearly read and record data with a large, backlit display
• Rugged holster and design for tough work environments
• Portable size allows for easy transportation
• Instantly be alerted to measurements outside of your set limit, when
you use the adjustable limit setting
General specifications
Measuring functions
3-pole earth ground resistance, 2 pole ac resistance of a conductor,
Interference voltage
Intrinsic error
Refers to the reference temperature range and is guaranteed for one year
Measuring rate
2 measurements/second
Battery
One 9 volt alkaline (LR61)
Battery condition
LO-BAT is displayed if voltage drops below 6.5 V
Voltages
Between jacks H/C2 and E/C1: 250 Veff maximum (effective voltage)
Between jacks S/P2 and E/C1: 250 Veff maximum
Climatic class
VDE/VDI 3540 RZ (conforming to KWG as per DIN 40040, 4/87)
Temperature performance
Working: -10 °C to +50 °C (+14 °F to +122 °F)
Operating: 0 °C to +35 °C (+32 °F to +95 °F)
Storage: -20 °C to +60 °C (+68 °F to +140 °F)
Reference: +23 °C ± 2 °C (+73 °F ± 4 °F)
Note: If the tester is not going to be used, or is being stored for a long period, remove the battery and store separately from the tester to avoid
damage from battery leakage.
Note: The four temperature ranges for the tester exists to satisfy European Standards requirements; the instrument can be used over the full
working temperature range by using the temperature coefficient to calculate accuracy at the ambient temperature of use.
General specifications
cont.
Temperature coefficient
± 0.1 % of range per degree Kelvin
Safety
IEC/EN 61010-1, 600 V CAT II, pollution degree 2
Dimensions
113 mm x 54 mm x 216 mm (4.5 in x 2.1 in x 8.5 in.), including holster
Weight
850 g (1.9 lb), including standard accessories, volume approximately 600 cm3
Electrical specifications
Maximum deviations
Parameter
Influence factor
Deviation influence
Test voltage
3.7 kV
E1
Position
0%
Protection type
IP 40; IEC/EN 60529
E2
Supply voltage
0%
Emission: IEC/EN 61326 Class B
E3
Temperature E3
2.3 %
Electromagnetic
compatibility
E4
Serial interference voltage (20 V)
0.6 %
E5
Probe- and auxiliary probe resistance
10 %
Ordering information
RE resistance measurement
Current-voltage measurement with improved cross-talk attenuation,
no compensation of measuring lead resistance, with probe (3-pole)
or without probe (2-pole), as per IEC/EN 61557-5
Measuring method
Immunity: IEC/EN 61326 Annex C
Open circuit voltage
23 to 24 V ac
Short circuit current
> 50 mA ac
Measuring frequency
128 Hz
Maximum permissible
overload
250 Veff
Fluke-1621 Earth Ground Tester
Includes:
• Users manual
• Two measuring leads with
alligator clips, 2 m (6 ft)
• One battery, 9 V alkaline (LR61)
• One protective holster, yellow
• One CD-ROM
Measuring
range
Resolution
Display range
0.15 W to 20 W
0.01 W
0 to 19.99 W
200 W
0.1 W
20 to 199.9 W
2 kW
1W
200 to 1999 W
Intrinsic
uncertainty
Operating uncertainty IEC 61557[1]
± (6 % of
measured value
+ 5D)
± (18 % of measured
value + 5D)
Notes:
[1] Covers all deviations caused by influence quantities E -E .
1 5
If the deviation E4 caused by high probe or auxiliary probe resistance is higher than specified
Measured values are outside of the specified operating uncertainty.
Optional accessories
• Cable-Reel 50 m Ground/Earth
Cable Reel 50 M Wire (162.5 ft)
• Cable-Reel 25 m Ground/Earth
Cable Reel 25 M Wire (81.25 ft)
• Earth Stake Ground/Earth Stake
• ES-162P3 Stake Set for 3-Pole
flashes.
Measuring time
8 seconds (average from when START is pressed)
Limit input
Tester retains set value even if instrument is turned off (assuming
battery power supply is sufficient)
Measurement (includes three
stakes, one 50 M cable reel,
and one 25 M cable reel)
Note: If tester detects stray interference voltage ≥ 20 V, W is displayed and the measurement is not started.
Automatic changeover of resolution
RH
Resolution
< 7 kW
0.01 W
< 50 kW
0.1 W
> 50 kW
1W
Interference voltage display dc + ac
Vmax
30 Veff
Common mode rejection
> 80 dB at 50 Hz and
60 Hz
Ri
680 kW
Measuring uncertainty
< 10 % for pure ac
and dc signals
2 Fluke Corporation
Fluke 1621 Basic Earth Ground Testter
Fluke.Keeping your world
up and running.®
Fluke Corporation
PO Box 9090, Everett, WA USA 98206
Fluke Europe B.V.
PO Box 1186, 5602 BD
Eindhoven, The Netherlands
For more information call:
In the U.S.A. (800) 443-5853 or
Fax (425) 446-5116
In Europe/M-East/Africa +31 (0) 40 2675 200 or
Fax +31 (0) 40 2675 222
In Canada (800)-36-FLUKE or
Fax (905) 890-6866
From other countries +1 (425) 446-5500 or
Fax +1 (425) 446-5116
Web access: http://www.fluke.com
©2007 Fluke Corporation. All rights reserved.
Specifications subject to change without notice.
Printed in U.S.A. 6/2007 3057417 D-EN-N Rev A
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