Martel Electronics 235 - Manual (Page 93)

General
Input Impedance:
Volts >10 megohms
Millivolts >10 megohms
Current 5 ohms nominal
Output Impedance:
Volts <5 ohms
Millivolts <5 ohms
Common Mode Rejection: 80 db at 60 Hz
Normal Mode Rejection: 40 db at 60 Hz
Input/Output Isolation: 100 megohms at 500Vdc
Battery Charge Time: 12-14 hours
Unit on Time: 7-8 hours typically
Environmental
Temperature:
Operational 0°C to 50°C
Storage (w/Batteries) -20°C to 60°C
Humidity: 10% to 90% non-condensing
Specifications subject to change without notice.
Specifications
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