FLUKE 1555

Insulation resistance measurement Test voltage ( dc) Range ( dc) Accuracy ( ± reading) 250 V 50 G© unspecified 5 % 20 % unspecified 500 V 200 k© 200 k© to 10 G© 10 G© to 100 G© > 100 G© unspecified 5 % 20 % unspecified 1000 V 200 G© unspecified 5 % 20 % unspecified 2500 V 500 G© unspecified 5 % 20 % unspecified 5000 V 1 T© unspecified 5 % 20 % unspecified 10000 V ( 1555 only) 2 T© unspecified 5 % 20 % unspecified Bar graph range 0 to 1 T© Insulation test voltage accuracy -0 % , + 10 % at 1 mA load current Induced ac mains current rejection 2 mA maximum Charging rate for capacitive load 5 seconds per ¼ F Discharge rate for capacitive load 1.5 s/ ¼ F Leakage current measurement Range: 1 nA to 2 mA Accuracy: ± ( 5 % + 2 nA) Capacitance measurement Range: 0.01 uF to 15.00 ¼ F Accuracy: ± ( 15 % rdg + 0.03 ¼ F) Timer Range: 0 to 99 minutes Resolution Accuracy: Setting: 1 minute Indication: 1 second Live circuit warning Warning Range: 30 V to 660 V ac/ dc, 50/ 60 Hz Voltage Accuracy: ± ( 15 % + 2 V) General specifications Display 75 mm x 105 mm Power 12 V lead-acid rechargeable battery, Yuasa NP2.8-12 Charger Input ( AC) Charger Input ( AC) 85 V to 250 V ac 50/ 60 HZ 20 VA This Class II ( double insulated) instrument is supplied with a Class 1 ( grounded) power cord. The protective earth terminal ( ground pin) is not connected internally. The extra pin is for added plug retention only. Dimensions 170 mm x 242 mm x 330 mm ( 6.7 in x 9.5 in x 13 in) Weight 3.6 kg ( 7.94 lb) Temperature ( operating) -20 º C to 50 º C ( -4 º F to 122 º F) Temperature ( storage) -20 º C to 65 º C ( -4 º F to 149 º F) Humidity 80 % to 31 º C decreasing linearly to 50 % at 50 º C Altitude 2000 m Enclosure sealing IP40 Input overload protection 1000 V ac Electromagnetic compatibility EN 61326