1. Selection of the monitored medium:
Factory setting: Monitoring of liquids. For monitoring of gases: Link
terminals 23 / 24.
2. Setting of the power-on delay time:
Factory setting: Power-on delay time = 10 s. To define other times
for t1: Connect an external resistor (R) between the terminals 22
and 23.
3. Apply the operating voltage. After the power-on delay time has
elapsed, the unit is ready for operation, (during this time the out-
put relay is energised).
4. Set the preset flow and keep it constant. Turn the setting poten-
tiometer (2) until a green LED lights. The farther the green LED lit is
away from the yellow LED, the safer is the adjustment (excess gain
for flow or temperature fluctuations).
5. Set the setting potentiometer for the temperature monitoring (3) to
the requested limit temperature.
15
ENGLISH
3
2
1
4
5
FLOW
TEMP
FLOW
LOW VOLTAGE
WIRE BREAK-
RELAY
TEMP-
RELAY
SWITCH
POINT-
RELAY
Potentiometer (switch point flow)
Bank of LED's
- red LED lit: flow below the switch
point
- yellow LED lit: relay is energised, flow
has reached the switch point
- green LED lit: flow above the switch
point
Potentiometer (switch point
temperature)
Red LED (TEMP/RELAY): lights if the set
temperature is exceeded
Red LED (WIRE BREAK/RELAY): lights in
case of wire break or short circuit of the
sensor wires
1
2
3
4
5
Adjustment
t1 [s] 15
20
25
30
35
40
45
50
55
60
65
70
75
80
R [k
Ω
] 10
18
27
39
47
56
68
82 100 120 150 180 220 270
