Operation manual 20997-Duftdos-UNPL (09/16)
Page 8 von 9
Mounting of the contact sensor on the steam line
The temperature sensor type NTC 20 KΩ, is a contact sensor for mounting at steam-carrying tubes. The sensor measures the temperature at
the pipe wall of the steam pipe.
Article no.: 23721
Scope of delivery:
Temperature sensor NTC 20 kOhm
incl. tensioning chain with spring
Mounting:
Take the coil spring with the small chain, placing them on the steam pipe and hook the chain with a slight tension on the coil spring.
Check if the chain is securely hooked on the coil spring.
Now pull the coil spring from the steam pipe up and push the head of the temperature sensor between the steam pipe and the coil
spring, so that the coil spring is located in the recess of the sensor head (see picture). Look out for a tight fit of the sensor head.
Then you adjust the desired dosing value at the rotary knob for the dosage. The dosing pump delivers per second running time approximately
1 ml fragrance. The green LED indicates the unit is read to operate. The yellow LED temperature indicates reaching the set temperature of the
steam line.
Because the dosage of the fragrance is coupled via the contact sensor to the steam generator it will only dosed when the steam pipe is hot
and at the same time the steam generator produces steam.
9.
Maintenance
The DUFTDOS dosing pumps are practically maintenance-low and giving long life if the following points are considered:
-
Unsuitable fragrances are not used
-
check the pump head every time you change the canister
-
at least change the pump hose twice a year, or as needed
If the unit is taken out of service remove the dosing hose from the pump (see under setion 6.1) to prevent long term deformation of the hose.
Attention!
Risk of scalding at the hot steam lines!
Temperature sensor with tensioning
chain and spring
