Metrel MI 3121 ເຄື່ອງທົດສອບທີ່ມີໜ້າທີ່ດຽວ (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
ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ