Emerson MC68HC16Z1 Manuel D’Utilisation

The Liqui-tect panel’s controller board, as shown below, has connectors for two digital outputs for leak 

detection alarms, two digital outputs for cable break alarms, two inputs for leak detection cables and 

two analog outputs for connecting to a building management system. The board comes complete with 

light-emitting diodes (LEDs) to display the status of monitored zones, power connections and other 

features necessary to monitor and protect your operation. 

Indicates when power is supplied to the panel.

DIP switch used for resetting password to default 

and disabling the audible alarm.

Not used.

N/A

Provides audible notification when an alarm occurs.

and

The Cable Break output connection is a two-state 

point (ON/OFF, energized/de-energized). When the 

cable is broken or becomes contaminated, an alarm 

is created and the contact is energized.
The Leak Detected output connection is a two-state 

point (ON/OFF, energized/de-energized). When 

water is detected, an alarm is created and the 

contact is energized.
Each output can be used to connect to a secondary 

warning device such as a horn, light or building 

management system.

Indicates the status of the alarm outputs.

(See description and references for E-Digital alarm outputs (Zone 1) above)

ON

TB3

C28

R16

R17

R18

DS3

DS4

DS5

K1

K2

K4

K5

TX RX

A

1

SW2

SW1

R4

O N

2

3

4

5

6

7

8

1

O N

2

R1

R40

R44

DS7

DS8

R38

C26

C27

C40

C33

U15

U23

C32

U22

C46

U29

U24

U24

U16

DS1

Pwr On

24V Pow

LCD Interlface

3

4

5

6

7

8

Fault

LEDO

DS6

Reset