SPECIFICATIONS RANGE ACCURACY RESOLUTION mV Measure(INPUT) 0-100mV (0.02%+2) 0.01mV mV Source(OUTPUT) 0-100mV (0.02%+2) 0.01mV V Measure(INPUT) 0-10V (0.02%+2) 0.001V V Source(OUTPUT) 0-10V (0.02%+2) 0.001V mA Measure(% of span) 0 to 24 mA(-25% to 125%) (0.015%+4) 0.001mA mA Source(% of span) 0 to 24 mA(-25% to 125%) (0.015%+4) 0.001mA Loop Power 24 V DC 10% FEATURE Measure loop current(0-24mA)signals with very high accuracy of 0.015% and 1uA resolution Measure voltage output process signals from PLCs,transmitters Source or simulate 24mA loop current Source voltage to 100mV or 10V 24V loop supply with simultaneous current measurement GENERAL Power Supply 41.5V AA batteries Weight Approx.550g Size 204mm93mm57mm Safety Rating EN61010-1,EN61326-1 Voltage current signal source (PM7221)is a Volt/mA source and measuring tool used in tests on 0-24 Milliamperecurrent circuit and 10V DC voltage. This calibrator can not be used for measurement and output simultaneously.The calibrator can provide current output in accordance with Milliampere value or percentage displayed. The maximum voltage imposed between any input terminal and the ground or between two input terminals 30V. Storage temperature:-40 to 60. When the meter is left idle for five minutes, the meter will automatically be shut down to extend the batteries service life.