3.2Power Supply Requirements
Minimum supply voltage
8V continuous
Cranking dropouts
Able to survive 0V for 400mS providing the
supply was at least 10V before the dropout and
recovers to 5V afterwards.
Maximum supply voltage
35V continuous
Maximum operating current
•
BackLightOn
58mAat12V
60mAat24V
•
BackLightOff
48mAat12V
52mAat24V
•
DigitalInputsConnected
60mAat12V
62mAat24V
•
AllSensors
Connected
72mAat12V
74mAat24V
Maximum standby current. LCD
Back Light Off
47mA at 24V
51mA at 12V
Maximum Current when in Sleep Mode 35mA at 12V
32mA at 24V
3.3 Battery Voltage Display
Range
0V-40V DC (note Maximum continuous operating voltage of 35V DC)
Resolution
0.1V
Accuracy
1% of R1Least Count (At 12V 0.2V)
3.4 Generator Voltage/Frequency Sensing
Measurement type
True RMS conversion
Harmonics
Up to 11
Input Impedance
300K Ph-N
Phase to Neutral
30V to 330V AC (Measurement Range)
Phase to Phase
50V to 570V AC (Measurement Range)
Common mode offset from Earth
100V AC (max)
Resolution
0.1V
Accuracy
±1% of Reading phase to neutral
±1% of Reading phase to phase
Minimum frequency
15.0Hz
Maximum frequency
75.0Hz
Frequency resolution
0.1Hz
Frequency accuracy
±0.05Hz
