Samson Type 5824, Mounting And Operating Instructions

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7-2 EB 5824-1 EN
Start-up
7.2 Adjusting the resistance
transmitter
Risk of fatal injury due to electric shock.
Î
Before installing electrical accessories,
switch off the supply voltage and discon-
nect the signal line.
The resistance transmitter is not suitable for
retrofitting.
As the valve passes through its travel range,
the resistance value changes from 0 Ω to
approx. 80 % of its nominal value. Turn a
screwdriver placed on the slotted shaft to
calibrate the resistance transmitter.
Calibrating the actuator with an extended
actuator stem at 0 Ω
1. Connect ohmmeter to terminals 61 and
62 (see the 'Electrical connection' sec-
tion).
2. Move the actuator stem to the bottom
end position.
3. Turn the resistance transmitter counter-
clockwise as far as it will go. The ohm-
meter indicates the initial value of ap-
prox. 0 Ω .
DANGER !
Note
Calibrating the actuator with a retracted
actuator stem at 0 Ω
1. Connect ohmmeter to terminals 61 and
63 (see the 'Installation' section).
2. Move the actuator stem to the top end
position.
3. Turn the resistance transmitter clockwise
as far as it will go. The ohmmeter indi-
cates the initial value of approx. 0 Ω .
4. Only for actuators with 6 or 12 mm
travel: slowly turn the resistance transmit-
ter counterclockwise up to the point
where the resistance changes from 0 Ω.