Metrel MI 3121 Single-Functional Testers (30 GΩ; 50 V ~ 1000 V)

INSULATION RESISTANCE

Test Voltage 50, 100, 250 VDC:

0.00 MΩ ... 19.99 MΩ / 0.01 MΩ / ±(5 % of reading + 3 digits)

20.0 MΩ ... 99.9 MΩ / 0.1 MΩ / ±(10 % of reading)

100.0 MΩ ... 199.9 MΩ / 0.1 MΩ / ±(20 % of reading)

Test Voltage 500 VDC, 1000 VDC:

0.00 MΩ ... 19.99 MΩ / 0.01 MΩ / ±(5 % of reading + 3 digits)

20.0 MΩ ... 199.9 MΩ / 0.1 MΩ / ±(5 % of reading)

200 MΩ ... 999 MΩ / 1 MΩ / ±(5 % of reading)

1.00 GΩ ... 4.99 GΩ / 10 MΩ / ±(10 % of reading)

5.00 GΩ ... 19.99 GΩ / 10 MΩ / ±(20 % of reading)

20.0 GΩ ... 29.9 GΩ / 100 MΩ / Indicative

CONTINUITY

Test Current 200 mA (with polarity change):

0.00 Ω ... 19.99 Ω / 0.01 Ω / ±(3 % of reading + 3 digits)

20.0 Ω ... 199.9 Ω / 0.1 Ω / ±(5 % of reading)

200 Ω ... 1999 Ω / 1 Ω / ±(5 % of reading)

Test Current 7 mA:

0.0 Ω ... 19.9 Ω / 0.1 Ω / ±(5 % of reading + 3 digits)

20 Ω ... 1999 Ω / 1 Ω / ±(5 % of reading + 3 digits)

VOLTAGE & FREQUENCY

Voltage (TRMS):

0 V ... 9.99 V / 0.01 V / ±(3 % of reading + 3 digits)

10.0 V ... 99.9 V / 0.1 V / ±(5 % of reading + 3 digits)

100 V ... 550 V / 1 V / ±(5 % of reading + 3 digits)

Frequency:

0.00 Hz ... 19.99 Hz / 0.01 Hz / ±(0.2 % of reading + 1 digit)

20.0 Hz ... 199.9 Hz / 0.1 Hz / ±(0.2 % of reading + 1 digit)

200 Hz ... 500 Hz / 1 Hz / ±(0.2 % of reading + 1 digit)

GENERAL DATA

Power supply: 6 x 1.5 V batteries or rechargeable batteries, size AA

Battery life: Typical 13 h (>1200 insulation tests)

Overvoltage category: CAT III 600 V, CAT IV 300 V

Protection classification: Double insulation

Degree of protection: IP 40

Memory: 1900 measurements

Connectivity: RS232 and USB

Weight: 0.80 kg (without batteries)

Dimensions (W x H x D): 14 cm x 8 cm x 23 cm

Datasheet