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In addition to offering all the abilities of the MIT220-EN, Megger’s MIT230-EN Insulation and Continuity Tester is designed for 250 V/ 500 V/ 1000 V testing applications.
Insulation ranges
Nominal test voltage:
1000 V, 500 V, 250 V (d.c.)
Measuring range
10 kΩ - 1000 MΩ on all ranges
Terminal voltage on open circuit (d.c.):
-0% +25% of rated voltage
Short circuit current:
205 mA +10 mA –5 mA
Test current on load:
>1 mA at minimum pass values of insulation as specified in BS7671, HD384, IEC364 and VDE0413 part 1
Accuracy (at 20° C)
MIT220, 230:
±3% of reading ±2 digits up to 10 MΩ
±5% of reading ±2 digits up to 100 MΩ
±30% of reading up to 1000 MΩ
Continuity ranges
Measuring range:
0.01Ω - 100.0 Ω
(0 -50 Ω on analogue scale)
Open circuit voltage:
5 V ±1 V
Short circuit current:
205 mA, ±5mA (0-10 Ω) >20 mA (0 - 100 Ω) Ω
Accuracy (at 20° C)
MIT220, 230:
±0.01 Ω to 9.99 Ω ±3% ±2 digits
10.0 Ω to 99.9 Ω ±5% ±2 digits
Zero offset adjust:
MIT220, 230:
0 to 9.99 Ω
Continuity buzzer
MIT220, 230:
Operates at <2 Ω
Default voltmeter
MIT220,230:
>25 V ac or dc. is applied display will operate as a voltmeter.
Test inhibit
If more than 50 volts is detected, testing will be inhibited.
Range:
25 V to 600 V @ 50/60 Hz & dc
Accuracy:
25 V to 450 V ac/dc ±1% ±1 digit
450 V to 600 V ac ±2% ±1 digit
Auto power down
Auto power down operates after 10 minutes if left in standby mode.
Temperature and humidity
Operating range:
-10 °C to +55 °C (14 °F to 130 °F)
Operating humidity:
93% R.H. at +40 °C max. (93% R.H. at 104 °F)
Storage range:
-25 °C to +65 °C (-13 °F to 150 °F)
Environmental protection:
IP40
Fuses
Terminals:
500 mA (F) 600 V, 32 x 6 mm Ceramic HBC 50 kA minimum.
Display shows if fuse is ruptured.
Safety
Meets the requirements of EN61010-1 Cat III 600 V phase to earth.
Automatic discharge
After an insulation test the item under test will be discharged automatically. Any voltage present will be indicated on the display so that the discharge can be monitored.
Power supply
Battery 6 x 1.5 V cells IEC LR6 type(AA alkaline).
Rechargeable NiMH cells may be used.
Battery condition is constantly shown on the display as a four-section bar-graph.
Battery life
3000 consecutive tests (5 seconds per test) on any test using 2 Ah batteries.
Weight
All units: 550gms approx. (1.2lbs)
Dimensions
All units: 195 x 98 x 40mm (7.7 x 3.9 x 1.6 inches)
E.M.C
In accordance with IEC61326-1
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