Keterangan :

SPECIFICATION
All quoted accuracies are at + 20° C.
Insulation
Nominal test voltages
MIT480 50 V, 100 V
MIT481, 485 50 V, 100 V, 250 V, 500 V, 1000 V
Insulation resistance range
MIT480 10 G©
MIT481, 485 200 G©
Range Full Scale Accuracy
All ranges ± 2% ± 2 digits up to 100 M© .
Then:
1000 volts ± 3% ± 2 digits ± 0.2% per G©
500 volts. ± 3% ± 2 digits ± 0.4% per G©
250 volts. ± 3% ± 2 digits ± 0.8% per G©
100 volts. ± 3% ± 2 digits ± 2.0% per G©
50 volts. ± 3% ± 2 digits ± 4.0% per G©
Analogue range 1 G© full scale
Short Circuit Current: 2 mA + 0% -50%
Terminal voltage: -0% + 20% ± 1 V
Test Current on load:
1 mA at min. pass value of insulation specified in BS7671, HD384
and IEC364, 2 mA max.
EN61557 Operating range: 0, 10 M© to 1, 00 G
Leakage current range: 10 ¼ A 2000 ¼ A
Leakage current: 10% ± 3 digits
Voltage display: 3% ± 3 digits ± 0.5% of rated
voltage
Polarisation Index ( PI) : 10 min / 1minute ratio
Dielectric Absorption Ratio ( DAR) : 60 sec / 30 sec ratio
Notes:
( 1) All ranges measure from 0, 00 M© upwards.
( 2) Above specifications only apply when high quality silicone leads
are being used.
Continuity
Measurement: 0, 01 © to 99, 9 © ( 0 to 100 © on
analogue scale)
Accuracy: ± 2% ± 2 digits ( 0 to 100 © )
Open circuit voltage: 5 V ± 1 V
Test current: 205 mA ( – 0 mA + 20 mA)
( 0.01 © to 9.99 © )
20mA ( ± 1 mA )
( 10.0 © to 99.9 © )
Zero offset at probe tips: 0, 10 © typical
Lead resistance zeroing: Up to 9, 99©
Buzzer: Variable limit 1 © , 2 © , 5 © ,
10 © , 20 ©
Resistance
Measurement: 0, 01 k© to 1000 k© ( 0 to 1 M©
on analogue scale)
Accuracy: ± 3% ± 2 digits up to 50 k©
then ± 2 digits
Open circuit voltage: 5 V ± 1 V
Short circuit current: 1.5 mA ± 0.2 mA
Voltage range
0 to 600 V d.c. ± 2% ± 2 digits
10 mV to 600 V TRMS sinusoidal ( 40 to 400 Hz) ± 2% ± 2 digits
0 to 1000 V on Analogue scale
Unspecified input level 0 - 10 mV ( 40 to 400 Hz)
For non-sinusoidal waveforms additional specification
apply:
± 3% ± 2 digits 101 mV to 600 V TRMS and ± 8% ± 2 digits 10 mV to
100 mV TRMS
Default Voltmeter: Operates at > 25 V a.c. or d.c.
on any range except OFF
Frequency: 40-450 Hz ( 40 Hz - 99, 9 Hz)
± 0.5% ± 1 digit ( 100 Hz to
450 Hz)
Capacitance measurement
MIT481 and MIT485.
Measurement range: 100 pF to 10 ¼ F
Accuracy: ± 5.0% ± 2 digits
Distance by capacitance:
MIT481, MIT485
Arithmetic conversion from capacitance measurement on
Default capacitance measurement: 50nF/ km
Capacitance range: 40 nF/ km to 60 nF/ km
Result storage
Capacity: > 1000 test results
Download: Bluetooth wireless
Bluetooth Class: Class II
Range: up to 10 m
Power Supply:
5 x 1, 5 V cells type IEC LR6 ( AA, MN1500, HP7, AM3 R6HP) Alkaline
NiMH rechargeable cells may be used.
Battery life: 2200 insulation tests with duty cycle of 5 sec ON / 55
sec OFF @ 1000 V into 1 M©
Dimensions
Instrument: 220 x 92 x 50 mm ( 8.66 in. x 3.63 in. x 1.97 in.)
Instrument + case: 456 x 178 x 89 mm ( 18 in. x 7 in. x 3.5 in.)
Weight
Instrument only: 590 gms, 775 gms with boot
( 20.73 oz., 27.22 oz.)
Instrument plus case: 1.75kg ( 3.86 lb)
Fuse
Use only a 500 mA ( FF) 1000 V 32 x 6 mm ceramic fuse of high
breaking capacity HBC 50 kA minimum. Glass fuses MUST NOT be
fitted