SATEC EDL175 - Manual (Page 11)

11
3.1 Internal Battery Power Supply
The EDL175 includes a rechargeable battery. When fully charged, the battery allows the
EDL175 to work for at least 20 minutes. Do not allow the battery to totally discharge. The
battery measurement sockets can be used for external 12V battery connection, which will
allow prolonged use of the EDL175 in the event of no network power supply.
Charging the Battery
When the battery is fully discharged (indicated by the buzzer, the blinking LOW BAT lamp
and, upon end of discharging, by no display), apply AC voltage to the EDL175 to recharge
the battery. The recommended charge time is 8 hours.
3.2 Indicators
The following table lists the possible indicated conditions:
2.8.
2
Special Cables
The manufacturer's special cables, together with the standard clamps, enable the EDL175
to perform measurements on high voltage lines via existing current transformers with 5A
nominal secondary current by measuring the output of the current transformers.
2.8.
3 Standard FLEX Current Sensors
The EDL175 can work with all standard FLEX and clamp current sensors which have a
voltage output up to 3V RMS. The EDL175 provides an optional FLEX connector cable for
connection to these current sensors.
Green LED –
AC and net-
work neon
light
Red LED –
BAT Red LED –
LOW BAT PM175
Display
Indication
ON Off Off ON
EDL175 supplied by external AC power
supply; battery is charging slowly
Off ON Off ON
EDL175 supplied by internal charged DC
battery
Off ON
Blinking &
buzzer
ON
EDL175 supplied by internal DC power
supply; battery needs charging and will
disconnect automatically within 5 minutes
ON Off Off Off
EDL175 is connected to external AC power
supply, slide switch is OFF; battery is
charging rapidly