29 Instruction Manual
(5) Select item '6. Alarm #1' in M78
(6) Select item '6. Alarm #1' in M79.
4.18 How to use the built-in Buzzer
The built-in buzzer is user-configurable. It can be used as an alarm. Use M77 for setups.
4.19 How to use the OCT output
The OCT output is ON/OFF type. It is user-configurable. For example, you can set the OCT
output to be a pulse signal for flow accumulation.
Use M78 for the setup.
Notice that the Frequency Output shares the same OCT hardware.
The OCT output is wired to pin 6(for positive) and pin 5(for ground) of the RS232 connector.
Refer to section 6.2 for more details.
4.20 How to modify the built-in calendar
No modification on the built-in calendar will be needed in most cases. The calendar runs on
insignificant amount of power supply. Modification will be required only in such cases as
when the battery is totally consumed, or when the changing of the battery takes a long time.
Press the ENT key under M60 for Modification. Use the dot key to skip over these digits
that need no modification.
4.21 How to view the Date Totalizers
Use M82 to view the date totalizers that are comprised of a daily totalizer, a monthly
totalizer and a yearly totalizer.
