Endress+Hauser promag 31, Руководство по эксплуатации

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4.3 Local display
Note!
For the fiscal measurement system Promag 31 there is no operation possible,
because the access is sealed!
With the Promag 31 local display important variables can be read off and controlled
directly at the measuring point:
•
Flow rate and/or totaliser value
•
Technical units (SI or US)
•
Process conditions (creep. partially empty pipe)
•
Error messages
It is possible to access, activate, and set various functions in sequence with the help
of the three operating keys on the local display.
1. Loosen Allen screw (3 mm) of the safety grip. Unscrew the cover of the
electronics compartment.
2. The keys may now be operated by pressing with a thin (non-conductive) pin.
A switching cycle takes about 0.5...0.8 seconds.
3. Firmly screw back the cover of the electronics compartment to the transmitter
housing once the settings have been entered. Firmly tighten the Allen screw of the
safety grip.
Jumper is
with fiscal measurement
without action
Set
This key is used for carrying out the following
operations within the appropriate function:
•
Selecting the technical units
•
Switching on/off the EPD (Empty Pipe Detection)
•
Starting the empty/full pipe adjustment
(for Empty Pipe Detection)
b
a
028y
37
LCD, 8-character
All measured values, operating and status
indications are shown here.
11 Display segments
The appropriate segments serve to provide
clear information on technical units and
current instrument function:
•
Current technical unit
•
Creep too low (Low flow cut-off)
•
Velocity of fluid > 12.5 m/s
•
System fault (error)
•
Partially filled pipe (Empty Pipe Detection)
Totalizer reset
This key is used for resetting totalizer to “0”
(in the “
tot ” function only).
Display function
This key is used for selecting the function
required (= display mode). By continuously
pressing the key, the individual functions
are called up automatically on at a time.
Only the * signed functions are activated
with fiscal measurement!
•
Current flow
•
* Actual totaliser
•
Alternating display
Flow/Totaliser
•
* Empty Pipe Detection
•
Empty Pipe adjustment
(for Empty Pipe Detection)
•
Full pipe adjustment
(for Empty Pipe Detection)
•
* Display function (for testing
the display functions)
Only l and m
3
are
allowed in fiscal
measurement status!
Fig. 40
4. Operation and Commissioning Promag 31
36 Hauser