Relay and Open Collector Wiring
Relay Module Wiring
The alarm is OFF during normal
operation, and will go ON when
relay energizes according to
9900 Relay settings.
The valve is ON during normal
operation, and will go OFF when
relay energizes according to
9900 Relay settings.
NO = normally open (closes when energized)
NC = normally closed (opens when energized)
Password Overview
The password is often required to start editing. Once entered correctly, this password will not
be needed for subsequent edits. However, once the menu system is exited,
the password will again be required when edit mode is re-entered.
Your choice of password (STD or CODE) is selected in the Options Mode.
● STD
The standard (STD) password is ▲▲▲▼, pressed in sequence. This password is
designed to protect the 9900 from unintentional changes. It is best suited for systems
where a group of people need to be able to change settings.
● CODE
The CODE default setting is 0000, adjustable to any 4-digit numerical code up to 9999.
Using a personal code provides the maximum degree of security.
This code can be modifi ed in the Options mode.
NO
NC
C
NO
NC
C
AC or DC
power
Flow
9900 Transmitter Start-Up Guide
ALARM!
AC or DC
power
Valve
15