20
Note: For the MIT310A only, the presence of fast transients in excess of
0.5kV or r.f. in excess of 1 volt on measured circuit may affect the results
General Specification
Insulation ranges
Nominal test voltage:
MIT310, 310A, 320, 330 1000 V, 500 V, 250 V (d.c.)
MIT300 500 V, 250 V (d.c.)
Terminal voltage on open circuit (0ºC):
-0% +20% of rated voltage
Measuring Range
All instruments: 10 kΩ - 999 MΩ on all ranges
Short circuit current: 1.5 mA nominal
Test cur
rent on load: 1 mA at min. pass values of insulation (as
specified in BS 7671, HD 384 and
IEC 364)
Accuracy (at 20°
C)
MIT300, 310, 320, 330: ±3%, ±2 digits up to 10 MΩ, ±5% up to
100 MΩ, ±30% up to full scale
MIT310A: ±2.5% of scale length (or 30% of reading
200 kΩ to 10 MegΩ)
Terminal characteristics
Continuity ranges
Measuring range: 0,01 Ω - 100 Ω
(0 -50 Ω on analogue scale)
Open circuit voltage: 5 V ±1 V
Short circuit current: 205 mA +10 mA -5 mA
Accuracy (at 20° C)
MIT300, 310, 320, 330: ±3% ±2 digits
MIT310A: ±2.5% of scale length
(or 30% of reading 0.2Ω to 2 kΩ)
Zero offset adjust:
MIT300, 310,320, 330: 0 - 9 Ω
MIT310A: 0 - 0.5Ω
Continuity buzzer
MIT300, 310: Operates at <5 Ω
MIT320, 330: Adjustable 1 Ω to 20 Ω
MIT310A: Operates at <5 Ω
MIT300, 310, 320, 330: Response time <20 ms
MIT310A: Response time <100 mS
Resistance range (MIT 320 and MIT330 only)
(can be used for diode testing)
Measuring range: 10 Ω - 1 MΩ
Open circuit voltage: 5 V
Short circuit current: 1.5 mA,
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