KROHNE H250 M40 EN - Manual (Page 35)

START-UP
5
35
H250 M40
www.krohne.com 11/2012 - 4000640702 MA H250 M40 R02 en
Start-up
5.1 Standard device
A minimum operating pressure (primary pressure) is necessary to operate the device:
5.2 Indicator ESK4-T
Start
After the device is switched on, the display shows
• "INITIALISING"
• Firmwareversion IO-Modul
The device first performs a self-test. Here, all of the parameters preset for the customer are
analysed and checked for plausibility. The device then switches to measuring mode and indicates
the current measured value.
Operation
CAUTION!
When starting up the device, the following points must be observed:
• Compare the actual operating pressure and the product temperature of the system with the
specifications on the nameplate (PS and TS). These specifications may not be exceeded.
• Make sure materials are compatible.
• Slowly open the shut-off valve.
• When measuring liquids, vent the pipes carefully.
• When measuring gases, increase pressure slowly.
• Avoid float impact (e.g. caused by solenoid valves), as this is likely to damage the measuring
unit or float.
Medium Pressure loss : operating pressure
Liquids 1 : 2
Gases without float damping 1 : 5
Gases with float damping 1 : 2
INFORMATION!
The device is always preset for the user and his application.
INFORMATION!
The device is low-maintenance
Comply with the application limits with regard to temperature of the medium and ambient
temperature.
MA_H250_M40_R02_en_640702_PRT.book Page 35 Wednesday, November 28, 2012 12:23 PM