Endress+Hauser Proline Promag 55 Operating Manual page 85

Device functions Proline Promag 55 FOUNDATION Fieldbus
Endress+Hauser
Write access with
Parameter operating mode
(MODE_BLK)
EPD - Adjustment AUTO - OOS
"Flow" Transducer Block/base index 1400
Use this parameter to perform EPD adjustment for an empty or full
measuring tube.
Options:
OFF
FULL PIPE ADJUST
EMPTY PIPE ADJUST
Factory setting:
OFF
Procedure for empty pipe / full pipe adjustment
1. Make sure that hardware write protection is switched off (→ see
Operating Instructions for Proline Promag 55 FOUNDATION
Fieldbus, BA0126).
2. In the configuration program, open the "Flow" Transducer Block.
3. Enable the configuration of the device by means of the "Access - Code"
parameter ( → Page 78). Check the status by means of the "Access -
Status" parameter
4. Empty the pipe. For the following empty pipe adjustment, the wall of
the measuring tube should still be wetted with fluid.
5. Start empty pipe adjustment:
In this parameter, select the ".... EMPTY PIPE ADJUST" setting and
start empty pipe adjustment by sending the setting to the field device.
6. After empty pipe adjustment, fill the piping with fluid.
7. Start full pipe adjustment with medium at a standstill:
In this parameter, select the ".... FULL PIPE ADJUST" setting and start
full pipe adjustment by sending the setting to the field device.
8. Having completed the adjustment, select the setting "OFF" and exit
the function by sending the setting to the field device.
9. Select "EPD - Empty Pipe Detection" parameter ( → Page 86) and
switch on empty pipe detection by selecting the setting "ON".
"
Caution!
The adjustment values must be valid before you can switch on the EPD
function. If calibration is faulty, the following messages are output in the
"Diagnosis" Transducer Block via the "Diag. - Act.Sys.Condition"
parameter ( → Page 90):
• EPD adjustment wrong - Err. No. 463:
The adjustment values for empty pipe and full pipe are identical.
EPD adjustment must be repeated.
This error is relayed to downstream function blocks or higher-order
process control systems by means of the status "BAD" of the output
value OUT (AI Block).
• EPD adjustment not possible - Err. No. 461:
Adjustment is not possible as the fluid conductivity values are outside
the permitted range.
This error is relayed to downstream function blocks or higher-order
process control systems by means of the status "UNCERTAIN" of the
output value OUT (AI Block).
3 Transducer Block
Description
→
ACCESS CUSTOMER ( → Page 78).
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