DIFFERENTIAL PRESSURE SWITCH
Technical Notice
FI 72.0226.1016E
Page 5 sur 10
WARNING:
All parameters are stored in memory. If at starting,
there’s an error, the display shows “CFX”.
X corresponds to an error code (0: zero adjustment,
1: measure scale, 2: Xk1 threshold, 3: Xk2 threshold,
9: ID number, A: 4mA, B: 20 mA, C: 4-20 mA
scale.
If any problem, please contact us.
If “CFX” fault, 4-20 mA output is to 0mA.
ADJUST « ZERO »:
It’s possible to adjust « zero » pressure:
- put the device out of pressure (disconnect
pneumatic connections).
- in the mode display of the pressure, press and held
the "-" key.
- press the "SELECT" key.
- loosen keys: the zero is adjusted
ADJUSTMENT:
The device leaves our workshops the scale pressure
in order from zero to full scale.
Adjustments Made after stabilisation and at 20° C.
INSTALLATION & MAINTENANCE:
The installation must be realised by skilled staff.
The device is a pressure controller, so to maintain a good
accuracy, the zero pressure offset must be adjusted over a
one year period (see adjust « zero »).
WARRANTY:
The MDPP2 Sv2 is 2 years limited guarantee (return of the
device in our workshops).
The guarantee doesn’t agree in these cases :
- handle without care, without package,
damage due to bad use (bad connections, over pressure,
over voltage, etc. …),
- all interventions in the device except connecting.
SEFRAM reserves the right to make changes to its devices.
