2, 3-Wire Earth Resistance Tester
Model: 92720
Introduction:
The 92720 is a "professional instrument".
The instrument is suitable for the testing of single earth electrodes such as lightning conductors and other small earthing system.
The resistance of conductors such as continuity and conduit coupling joints can also be measured.
Two-terminal operation measurement, which reduces the accuracy, can also be done by shorting P and C terminals .
Earth resistance can be Measurement directly from 0.01 Ω up to 1999 Ω.
The reading is displayed on a large, easy-to-read digital display.
Features:
● 2, 3-wire measurements earth resistance
● Capable of measuring earth voltage (Vac).
● 2mA measuring current permits the testing of earth resistance without tripping earth leakage current circuit breakers in the circuit.
● The leads are supplied as standard accessories for simplified two-wire measuring system.
● Data hold function.
● Battery operated.
● Battery test indicator.
● Timer for test function(count 3-5 minutes).
● Standard accessories for 3T and 2T.
● Designed to met IEC/ EN 61010-1, EN 61557-1, EN 61557-5. EN 61326-1. CAT III 200V.
● Calibration performed with supplied test leads.
Technical Data:
Display
|
3 1/2 digit (1999 counts)
|
Earth Resistance
|
0-20 /0-200 /0-2000Ω
|
Resolution
|
0.01/0.1/1Ω
|
Accuracy
|
±(2%rdg+2dgt)
|
Test current
|
2mA/820Hz
|
Earth Voltage
|
0-200V/ AC (40-500Hz)
|
Accuracy
|
± (1%rdg+2dgt)
|
Low Battery Indication
|
symbol appears on the display
|
Data Hold Indication
|
symbol appears on the display
|
Over Range Indication
|
"1" (MSD)
|
Power supply
|
6 x 1.5 V, IEC LR6
|
Safety complying with
|
EN 61010-1, EN 61557-1
EN 61557-5. EN 61326-1
|
Measurement category
|
CAT III 200V
|
Dimensions
|
205 x 90 x 55 mm
|
Weight
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Approx. 550g
|