Chapter 3 Device description
Operating manual HE 5422 MR
13
Version 1.2
3.3
Differential pressure column
Fig. 3.3: Differential pressure column
In normal operating mode, the LEDs serve the purpose of displaying the differential pressure.
In parametrization mode, the selected parameter value is indicated by flashing.
Recovery time: delay to restore the pressure balance after the blowing time
Interval: waiting time until the next measuring line cleaning cycle
TEST button: testing mode ON/OFF
PARA button: parametrization mode ON/OFF
UP button: increase displayed value
DOWN button: reduce displayed value
ENTER button: accept/confirm displayed value
Display:
Normal operation: current differential pressure
Parametrization mode: parameter values
Alarm indications
Symbols
Meaning
ΔP measuring range
High alarm
Upper threshold – Cleaning start
Lower threshold – Cleaning stop
Low alarm
Post cleaning threshold
Zeroing
