22
HE 5422 Operating Instructions
# 342338 | Version 1.3
6.3
Inputs
The Δp controller has 3 inputs: Start, post-cleaning (Postcl.) and Hold. The inputs are
internally supplied with 24 VDC and are active when they are connected to earth (GND) with a
potential-free contact.
Note!
The inputs refer to the same earth (-). It is allowed to use one earth line
for all inputs.
6.4
Outputs
6.4.1 Relay
The device has 4 potential-free relay outputs. The contacts can each be loaded with 250 VAC
/ 5 A.
6.4.2 Analogue output
The current differential pressure is reported with a non-galvanically isolated 0 (4) - 20mA & 0 -
10V signal.
6.5
Measuring hose assembly at the pressure connection
Assembly of hose onto push-in bulkhead fitting
A
Hose connection
Insert hose with 6 mm outer diameter into the connection.
B
Hose disconnection
1. Press the blue retaining ring to open the lock.
2. Pull the hose out of the connection.
A
B
1. Push
2. Pull hose
