MIT480 series Telecoms insulation and continuity testers

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