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Insulation resistance
Insulation resistance (test voltages 50 V DC, 100 V DC and 250 V DC)
Measuring range according to EN 61557 is 0.25 MΩ ÷ 199.9 MΩ
Measuring range (MΩ)/ Resolution (MΩ)/ Accuracy
0.00 ÷ 19.99/ 0.01/ ±(5 % of reading + 3 digits)
20.0 ÷ 99.9/ 0.1/ ±(10 % of reading)
100.0 ÷ 199.9/ 0.1/ ±(20 % of reading)
Insulation resistance (test voltages 500 V DC and 1000 V DC)
Measuring range according to EN61557 is 0.15 MΩ ÷ 30 GΩ
Measuring range (Ω)/ Resolution (MΩ)/ Accuracy
0.00 M ÷ 19.99 M/ 0.01/ ±(5 % of reading + 3 digits)
20.0 M ÷ 199.9 M/ 0.1/ ±(5 % of reading)
200 M ÷ 299 M/ 1/ ±(5 % of reading)
300 M ÷ 999 M/ 1/ ±(5 % of reading)
1.00 G ÷ 4.99 G/ 10/ ±(10 % of reading)
5.00 G ÷ 19.99 G/ 10/ ±(20 % of reading)
20.0 G ÷ 29.9 G/ 100/ indicative
Open circuit voltage: -0 % / +20 % of nominal voltage
Measuring current: min. 1 mA at RN=UNx1 kΩ/V
Short circuit current: max. 3 mA
Auto discharge after test
Continuity (200 mA)
Measuring range according to EN61557 is 0.16 Ω ÷ 1999 Ω
Measuring range R (Ω)/ Resolution (Ω)/ Accuracy
0.00 ÷ 19.99/ 0.01/ ±(3 % of reading + 3 digits)
20.0 ÷ 199.9/ 0.1/ ±(5 % of reading)
200 ÷ 1999/ 1/ ±(5 % of reading)
Open-circuit voltage: 6.5 V DC ÷ 9 V DC
Measuring current: min. 200 mA into load resistance of 2 Ω
Test lead compensation: up to 5 Ω
Automatic polarity reversal of the test voltage.
Continuity (7 mA)
Measuring range (Ω) Resolution (Ω) Accuracy
0.0 ÷ 19.9 0.1 ±(5 % of reading + 3 digits)
20 ÷ 1999 1 ±(5 % of reading + 3 digits)
Open-circuit voltage 6.5 V DC ÷ 9 V DC
Short-circuit current max. 8.5 mA
Test lead compensation up to 5 Ω
Voltage
Measuring range (V)/ Resolution (V)/ Accuracy
0 ÷ 9.99/ 0.01/ ±(3 % of reading + 3 digits)
10.0 ÷ 99.9/ 0.1/ ±(5 % of reading + 3 digits)
100 ÷ 550/ 1/ ±(5 % of reading + 3 digits)
Result type: True r.m.s. (TRMS)
Nominal frequency range: 0 Hz, 15 Hz ÷ 500 Hz
Frequency
Measuring range (Hz)/ Resolution (Hz)/ Accuracy
0.00 ÷ 19.99/ 0.01/ ±(0.2 % of reading + 1 digit)
20.0 ÷ 199.9/ 0.1/ ±(0.2 % of reading + 1 digit)
200 ÷ 500/ 1/ ±(0.2 % of reading + 1 digit)
Nominal voltage range: 10 V ÷ 550 V
General data
Power supply: 6 x 1.5 V batteries or rechargeable batteries, size AA
Battery life: typical 13 h (>1200 insulation resistance tests / >2000 resistance
RLOW tests)
Overvoltage category: CAT III 600 V, CAT IV 300 V
Protection classification:IP 40
Display: custom liquid crystal display with backlight
Communication transfer speed: 115200 baud (RS 232) / 256000 baud (USB)
Memory: 1900 measurements
Dimensions (w x h x d): 14 cm x 8 cm x 23 cm
Weight (without batteries): 0.80 kg
MI 3121 Standard set
Instrument Smartec Insulation / Continuity
Soft hand strap
Test lead, 2 x 1.5 m
Test probe, 2 pcs (black, red)
Crocodile clip, 2 pcs (black, red)
Power supply adapter + 6 NiMH rechargeable batteries, type AA
Instruction manual on storage media
Short instruction manual
Instruction manual
