G
Mounting and Installation
ATTENTION
specific to PREMASGARD
®
SHD 652
– A stable operating condition is reached not until 15 minutes after
applying supply voltage!
– Never change potentiometer setting.
– In case of liquid media with solid particle fractions in suspension,
content of measurement line ≥ 8 cm³
CALIBRATION
For customer-specific output and zero point signals
(Factory setting: maximum pressure = maximum output signal).
NP = Zero point setting
= Rate-of-rise setting
Calibration shall be done in mounting position.
Adhere to instructions regarding mounting position.
PROCEDURE
– Apply supply voltage (minimum 15 minutes).
– At output signal 0 V respectively 0 mA add to the desired pressure
10 % of the pressure range to be preset (pressure pick-up class
0.6 – better 0.25 %). By zero point potentiometer NP adjust to
1 V (max. 2 V) or 2 mA (max. 4 mA) respectively.
– Apply 100 % of the desired end pressure and
- Adjust to 10 V (min. 5 V) respectively 20 mA (min. 10 mA) using
the potentiometer.
– Repeat this process two to three times until values lie within the
tolerance range.
– Lacquer-seal all potentiometers again after calibration.
In case of liquid media direct vent screws
upward to enable proper ventilation.
