Page 7
Translation of the original instructions MFS-05
Δp, Filtration Group GmbH, 16.01.18, Mat. No. 70303409, Version 03
•
Valve alarm: Red
•
Alarm threshold: Red
Electrical
connection
•
Screw-type terminal strips
2.5 mm²
•
Valve connections 1.0 mm²
Ambient
temperature
0 ... 50°C
Climatic
category
KWF acc. to DIN 40040
(≤ 75% relative humidity, no
condensation allowed)
Design
•
Dust-tight Makrolon casing
(Ex II 3D T60°C IP65)
•
175 x 175 x 100 mm (W x H x D)
Mains power supply
230 V AC,
50-60 Hz
24 V DC
Tolerance
±
10%
±
10%
Mains fuse
0.315 A time-
lag
3.15 A time-
lag
Power consumption
30 W
42 W
8
Transport and storage
Transport
•
Always transport in the original packaging
•
Avoid vibrations
Storage
•
Always store in the original packaging
•
The unit must be stored in a dry room at 0 … 70°C
•
Avoid vibrations
•
Avoid direct UV radiation (sunlight)
9
Functions
9.1
Operating modes
The controller can operate in three different modes. The
mode is selected by altering the assignment of terminal
16-18 and the setting of the “XS1” jumper.
9.1.1 Interval time control
If “interval time control” mode is selected, the controller is
permanently active. The interval time varies as a function
of
∆
p.
Factory settings:
•
Terminal 16-17 not assigned
•
Terminal 18-19 jumpered
•
XS1 jumper Schw./Reg. switch up
•
XS1 jumper T/G Cycle switch up
Fig. 11: Jumper settings for interval time control
Valve activation is controlled by a ∆p-dependent interval
time.
The interval duration is determined by Δp and the
selected controller characteristic.
Possible controller characteristics:
0
4
8
12
16
20
24
28
32
36
40 mbar
2
aus
ein
Fig. 12: Controller characteristics
Example:
The filter must be cleaned at a differential pressure
equivalent to 30% of the differential pressure measuring
range (= 12 mbar) with an interval time of approximately
70 s.
To select the characteristic:
•
Find and plot the 30% line.
•
Find and plot the 70 s line.
The point of intersection is located on characteristic 60.
•
Set the “interval” potentiometer to 60 s.
