Hytek ALPHA Series Technical Data Manual page 19

DISPLAY CONNECTION DIAGRAM
NEUTRAL
220/240 VAC
POWER EARTH
INPUT
LIVE
220/240 VAC
NEUTRAL - GREY
MOTOR RELAY
LIVE - BLACK
OUTPUT
AC INPUT
PUMP
NOZZLE P/OUT SOLENOID
GND IN 12V COM REED OPT 12V
1 2 3 1 2 3 1
12V DC SOL.
NOZZLE 10:1 /
OUTPUT
SWITCH 100:1
(WEIGHTS &
INPUT PULSE
MEASURES
OUTPUT
VERSION
DISPLAY /
CALCULATOR
VIEWED FROM
REAR
SWITCHES
+12V
TANK LEAK EXT
GND
DC
GND SW GND SW GND SW
2 1 2 3 4 5 6 1
TRANSMITTER
ONLY)
PULSE IN COMMS
CH1 CH2 GND
GND + -
2 3 4 1 2 3
PULSE
INPUT
CALIBRATION
BUTTON
S855/2