SEW 2120ER 3 Wire Earth Resistance Tester

SEW 2120 ER 3 Wire Earth Resistance Tester

FEATURES

• Capable of measuring earth resistance and earth voltage.
• 2mA measuring current permits the testing of earth resistance without tripping earth leakage current breakers in the circuit under test.
• The leads are supplied as standard accessories for simplified two-wire measuring system.
• 0Ω adjustment.
• Battery operated.
• Data hold function.
• Low battery indication.
• Calibration performed with supplied test leads.

Specification

Measuring ranges	Earth resistance   0-20Ω / 0-200Ω / 0-2000Ω  Earth voltage   0-200 Vac(40-500Hz)
Accuracy	Earth resistance  ±(2%rdg+2dgt)  or ±0.1Ω,  which is greater  Earth voltage  ±(1%rdg+2dgt)
Earth resistance resolution	0-20Ω : 0.01Ω    0-200Ω : 0.1Ω    0-2000Ω : 1Ω
Measuring system	Earth Resistance by constant current inverter 820Hz approx. 2mA
Display	3½ digit (2000 counts)
0Ω adjustment	-
Open circuit indication	LED will be unlit
LED will be unlit	“  “symbol appears  on the display
Data hold indication	“  “symbol appears on the display
Over range indication	“1”(MSD)
Dimensions	210(L) × 210(W) × 100(D)mm
Weight (battery included)	Approx. 1395g
Power source	1.5V (AA) × 8
Safety standards	IEC/EN 61010-1 CAT III 200V. IEC 61557-1 IEC 61557-5 EN 61326-1