SEW ST-1520 三线数字式接地电阻测试仪

Name: SEW ST-1520 三线数字式接地电阻测试仪
Brand: SEW

制造商SEW(查看更多该品牌的产品)

ModelST-1520

原产地Taiwan

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Measuring ranges: 0~40Ω / 0~400Ω / 0~4kΩ / ±(2%rdg+2dgt)
resolution
0-20Ω : 0.01Ω
0-200Ω : 0.1Ω
0-2000Ω : 1Ω
Measuring Earth voltage: 0-200 Vac / ±(1%rdg+2dgt)
Dimensions: 163(L) × 100(W) × 50(D)mm
Weight: 480g
Power source: 1.5V (AA) × 6

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.
● Auto power off function.
● The timer operates automatically for about three to five minutes
   when the "PUSH BUTTON SWITCH" and "TIMER ON BUTTON"
   are pressed together. This will keep test "ON" for the duration of the
   timer.
● Timer for test function (count 3-5 minutes).
● Battery operated.
● Data hold function.
● Small and light weight.
● Calibration performed with supplied test leads.

SPECIFICATIONS

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)
Open circuit indication	LED will be unlit
Low battery indication	“ B “symbol appears on the display
Data hold indication	“ DH “symbol appears on the display
Over range indication	“1”(MSD)
Dimensions	163(L) × 100(W) × 50(D)mm
Weight (battery included)	Approx. 480g
Power source	1.5V (AA) × 6

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