11.1 Programming
Programming is carried out via the membrane keypad and menu navigation; can be locked with a password
Settings
Attenuation
0.0 ... 100.0 s (jump response time 10 / 90 %) for signal output; separately also for display
Selection of the displayed measuring
value
0.0 = only differential pressure 1 (dP1)
0.1 = only differential pressure 1 (dP1)
0.2 …25.5 = switchover time in seconds, dP1 and dP2 alternately
(0)
Switching output 1 / 2
Switch-off point, switch-on point, response time (0...100s), function (NC / NO contact)
(4)
Measuring range unit
mbar / Pa / "fee unit", starting value, end value and decimal point for "free unit"
Zero-point stabilising
0 ... 1/3 of the basic measuring range
(1)
Output signal
User-definable within the basic measuring range
(2) (4)
Zero point correction
± 1/3 of the basic measuring range
(3)
Implementation of characteristic curve
linear, square rooted, flat cyl. tank, table with 3...30 support points
Password
001 ... 999 (000 = no password protection)
Comments:
(0): For values from 0.2, the display switches between dP1 and dP2 rhythmically.
(1): Measuring values (around zero) are set to zero. (e.g. to suppress seepage).
(2): Maximum effective spread 4:1. Only the output signal is influenced. This in turn enables a decreasing characteristic curve,
if the start of the measuring range > end of the measuring range.
(3): Zero point correction for compensation of various installation positions.
(4)
Differential pressure 1 (dP1) controls switching output 1 and the output signal
Differential pressure 2 (dP2) controls switching output 2
12 Dimensional drawings
(all dimensions in mm unless otherwise specified)
Wall mounting plate
(optional)
Rear view
without wall mounting plate
M12 plug connection
Hose screw connection
for 6 or 8 mm hose
Bore-holes for
tapping screws Ø 3.5
Connector 1
1 (-) Power supply br
2 - Signal
ws
3 - Power supply
bl
4 + Signal
sw
5 n.c.
Connector 2
1 Switch contact 1 br
2 Switch contact 2 ws
3 Switch contact 2 bl
4 Switch contact 1 sw
bridged internally
Coding A
Summary of Contents for DE44
Page 15: ...14 Declaration of Conformity...
