CONNECTING DIAGRAM
EXAMPLE OF INSTALLATION
ver. 0.4.1 _ 2006.06.27_14:00
FUNCTIONING
The system works properly after swit-
ching on the power supply from the mains.
Turning the potentiometer in the direction
of “ “ causes the lighting device to switch
on at lower lighting level, in the direction of
“☼“ causes the device to switch on at higher
lighting level. In case the inner sensor’s lumi-
nous flux density falls below the preset thres-
hold the system switches on the output relay
and its lighting devices. The relay is switched
on until the luminous flux density is over the
preset threshold. Using the luminous flux
density hysteresis (delta) and relay switching
off time delay (T) makes the system resistant
to momentary and accidental light pulses.
While mounting the twilight switch pay atten-
tion the switched on lighting does not disturb
the functioning of the twilight lighting sensor.
DIMENSIONS
INNER DIAGRAM
TIME COURSE
PRODUCT FAMILY
The twilight switch WZH-01 belongs to the
twilight switches WZx family.
MOUNTING
1. Disconnect the power supply from the ma-
ins by the phase fuse, the circuit-breaker or
the switch-disconnector that are joined to the
proper circuit.
2. Check if there is no voltage on connec-
tion cables by means of a special measu-
re equipment.
3. Fasten the
WZH-01
to the base with the
screw.
4. Connect the cables WZH-01 with the her-
metic installation junction box according to
installing diagram.
5. Switch on the power supply from the mains.
6. Take out the rubber hole plug covering the
adjustment of the switch on threshold poten-
tiometer.
7. Adjust the demanded switch on threshold.
8. Put back the rubber hole plug covering the
potentiometer.
Typical application:
The twilight switch operates the light control functions (for example garden
lighting). The device should be installed in a place which is not directly illuminated
by lights that are operated by this twilight switch.
RELAY CAPACITY
WZx - xx (/ S1)
Version:
01 - one range
02 - two ranges (only
type M casing)
Type of casing:
M - monomodular
N - surface mounting
H - hermetic
S - special
Symbol
Probe SOH-01
brown
grey
black
blue
black
blue
grey
brown
b
la
ck
blue
g
r
ey
br
o
wn
luminous flux
density
200 lx
35 lx
20 lx
2 lx
position of
potentiometer
0 lx
200 lx
☼
0 lx
200 lx
☼
0 lx
200 lx
☼
0 lx
200 lx
☼
t
☼
☼
t
∆
L, N
lx
T
t
∆ ≈ 5 ÷ 60 lx
T ≈ 30 s
