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Sperry instruments DM-4400A - Page 5

Sperry instruments DM-4400A
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Storage
Environment: -20° C to 60° C (-4 F to 140° F) at 80% relative
humidity.
Power Source: One (1) 9V Transistor Type Battery.
(NEDA #1604).
Power
Consumption: 30mW typical
Battery Life: 1000 hours typical with zinc carbon.
Battery Indicator: " " symbol appears in display to indicate
low battery voltage.
Fuse: AWS Part F-17; 0.5A, 250V, 5 x 20mm fast acting.
Dimensions: 5.0"H x 2.8"W x 1.4"D
(128H x 72W x 36Dmm).
Weight: Approximately 7.0 oz. (200g) including battery.
RANGES:
DC Voltage
3
Range Resolution Accuracy (18°C to 28°C) Input Impedance
200mV 100µV ±(2.0% of rdg + 4d) 10MΩ
2V 1mV ±(0.5% of rdg + 4d) "
20V 10mV " "
200V 100mV " "
600V 1V " "
Normal Mode Rejection Ratio: Greater than 46dB at 50 Hz 60Hz
(1K unbalance).
Overload Protection: 600VDC or AC rms for 1 minute.
AC Voltage (Average Responding, Calibrated in RMS of Sine Wave)
Range Resolution Accuracy (18°C to 28°C) Input Impedance
(50Hz-500Hz)
2V 1mV ±(1.0% of rdg + 4d) 10MΩ
20V 10mV " "
200V 100mV " "
600V 1V " "
Response: Average responding calibrated in RMS of a sine wave.
Overload Protection: 600VAC for 1 minute.
DM4400 04_06 5/3/06 1:10 PM Page 6

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