SETTING AND USING METHOD
43
ENGLISH
Operating condition display
LED condition display
- Power LED (Red): When on, it shows that the product is in operation.
- Communication LED (Green, Red)
: Central controller, 485 wattmeter, remote reading device and 485 communication condition are
displayed.
Green LED ON: Signal sent
Yellow LED ON: Signal received
- The wattmeter (gas meter) receives pulse (yellow): The connected wattmeter (gas meter) dis-
plays the pulse signal reception status.
When pulse signal is input, the LED blinks (once per pulse).
- When the power is connected initially, all LEDs are turned on.
- If the pulse signal receipt condition display LED is continuously ON, it could mean that there is a
short circuit between the two terminals. Please check.
(If you are using a mechanical gas meter, depending on when operation is stopped, the LED may
be on sometimes.)
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