METERING
R
®
www.merkur-germany.com
Keyboard Function / Meter operating
METERING
R
®
14
Unregister
Some meters, when the customer does not use and need to return the remaining amount of the
meter, need to perform the unregister operation. When the meter successfully decrypt off Token,
will display the 20 digit Token in the LCD screen, the Token contains the remaining amount (only
integer decimal rounding), meter status information. The Token input to the system, the system
will get the corresponding information, the remaining amount will be returned to the custom at
the same time, the system will display the remaining amount, holidays, friendly mode, purchase
records, electricity records (showing the number of data, billing data).
15
Meter mode switch
The meter can be switched between the normal mode and the prepaid mode by Token.
Special function:
For single-phase watt hour meter, when the meter is connected properly, there is no voltage input
(power off), the meter relay will automatically disconnect the meter in the pull state. When the
meter to restore power supply (power on), the meter will automatically close the relay, the meter is
in the closing state, the meter to work properly, this function to prevent custom stealing electricity.
30
Meter operating instructions
This type of prepaid meter in addition to the management of TOKEN (number of synchronous
TOKEN, test TOKEN), other TOKEN generated according to KEYNO and SEQNO, the meter in the dec-
ryption TOKEN need to use the same KEYNO and SEQNO, otherwise decryption fails.
Three Phase Keypad meter: If inserting Token no. through any external Keypad system, Token will
be rejected and will show an error message.
a)
A purchase TOKEN: Input the Token, upon successfull entry, LCD will display "Success" and
displaying purchase amount. If failed it will display error code(Error code see Appendix)
b)
Clear TOKEN: Input the Token no. of Clear Token, upon successful entry, LCD will display
"Success" and relay will be disconnected. LCD willdisplay pull, every 5 seconds 5 short tone show-
ing remaining amount 0. If failed it will display error code (Error code see Appendix)
c)
Set the amount of overdraft TOKEN: Input the Token, upon successfull entry, LCD will
display "Success". If failed it will display error code(Error code see Appendix)
d)
Set up the amount of TOKEN: Input the Token, upon successful entry, LCD will display
"Success". If failed it will display error code(Error code see Appendix)
