Amico Alert-2, Installation Operating & Maintenance Manual

4

Amico Corporation

Description of the Modules 

A m i c o   M i c r o p r o c e s s o r   B a s e d   A l a r m

P a g e :   1 0

MASTER ALARM

7. MASTER/NEMA 4 STATUS MODULE

Each Master Status Module will continuously monitor up to 10 signals from

source equipment and pressure switches. If any of the signals being

monitored go into an alarm condition, a red LED will illuminate and the

audible alarm will sound. The module has a 

slow

 and a 

rapid

 flashing LED

rate. The last alarm condition always flashes at a 

rapid

rate, while the

previously acknowledged alarms always flash at a 

slow

rate.

PLEASE NOTE:

 Contacts located on back of module are Dry Contacts

only. DO NOT apply any voltage.

8. COMPUTER INTERFACE MODULE

The Computer Interface Module is a piggyback board that fits on top of the

master status module. This module  plugs into the status module via a

connector, located at the bottom end of the status module. There are three

mounting screws provided to secure this module to the status module.

This module provides dry contacts

for interface to a “

Building Manage-

ment System

”. The module is “Fail-

Safe”, closed circuit monitoring.

NOTE:

 The computer interface

module is not compatible with the 2

in 1 board.

COMPACT DISPLAY MODULE

The Compact Module provides a digital display of the actual pressure/vacuum of a gas 

being monitored. In addition a gas trend indicator bar with High and LOW alarms are displayed. 

The trend bar as two colored LED’s: GREEN for Normal and RED for High and Low condition.

Each display module contains a gas specific colour coded label (USA or ISO colours are 

available). The Display Module is field adjustable for pressure/vacuum settings, repeat alarm, 

and unit of measure. Dry contacts for high and low alarms are available for remote monitoring of 

each module.

SENSOR MODULE

The Sensor Module contains the transducer which converts the pressure/vacuum pressure source 

into a digital signal that is displayed on the Display Module. The sensor module shall be 

housed in an anodized aluminum and nickel-plated brass enclosure to act as a barrier against 

any interference and it is also temperature compensated. Each sensor is clearly labeled 

and colour coded for the gas or vacuum being monitored. The sensor module contains a 

gas specific DISS fitting to ensure correct connection of the proper sensor to the respective gas. 

Each sensor has been factory calibrated by computer for the specific gas shown on the sensor 

housing. If it is not connected to the appropriate gas display module, an error message (EO2) 

will be displayed.

MASTER ALARM

MASTER/NEMA 4 STATUS MODULE

Each Master Status Module will continuously monitor up to 10 signals from source equipment and 

pressure switches. If any of the signals being monitored go into an alarm condition, a Red 

LED will illuminate and the audible alarm will sound. The module has a slow and a rapid 

flashing LED rate. The last alarm condition always flashes at a rapid rate, while the previously 

acknowledged alarms always flash at a slow rate.

PLEASE NOTE

: Contacts located on back of module are Dry Contacts only. 

DO NOT apply any voltage.

For Annual Test

•  Reset power to make sure all LED’s light up

•  Push and hold the ‘Test’ button to light up all LED’s and the audible alarm

COMPUTER INTERFACE MODULE

The Computer Interface Module is a piggyback board that fits on top of the master status module. This 

module plugs into the status module via a connector, located at the bottom end of the status 

module. There are three mounting screws provided to secure this module to the status module. This 

module provides dry contacts for interface to a “Building Management System”.  The module is 

“Fail-Safe”, closed circuit monitoring.