Device Functions Proline Promass 83 MODBUS RS485 9 Block BASIC FUNCTION
Endress+Hauser 115
9.2.4 Function group ADJUSTMENT
BASIC FUNCTION G → MODBUS RS485 GDA
→
PROCESS PARAMETER GIA → CONFIGURATION 640
→
EPD PARAMETER 642
→
REFERENCE PARAMETER 646
→
ADJUSTMENT 648
Function description
BASIC FUNCTION → PROCESS PARAMETER → ADJUSTMENT
ZERO POINT
ADJUSTMENT
MODBUS register:
Data type:
Access:
6480
5121
Integer
read/write
This function enables a zero point adjustment to be automatically carried out.
The new zero point determined by the measuring system is adopted by the
function ZERO POINT.
Options:
0 = CANCEL
1 = START
Factory setting: CANCEL
" Caution!
Before carrying this out, please refer to the Operating Instructions BA107D for a
detailed description of the procedure for zero point adjustment.
! Note!
• Programming is locked during zero point adjustment.
The message“ZERO ADJUST RUNNING” appears on the display.
• If the zero point adjustment is not possible (e.g. if v > 0.1 m/s) or has been
canceled, the alarm message “ZERO ADJUST NOT POSSIBLE” appears on the
display.
• If the Promass 83 measuring electronics are fitted with a status input, then the
zero point can also be activated by using this input.
DENSITY ADJUST
MODE
MODBUS register:
Data type:
Access:
6482
5180
Integer
read/write
Use this function to select whether a 1-point or a 2-point density adjustment
should be carried out.
Options:
0 = CANCEL
1 = 1-POINT
2 = 2-POINT
DENSITY
SETPOINT 1
MODBUS register:
Data type:
Access:
6483
5124
Float
read/write
Use this function to enter the density setpoint value for the first fluid for which
you want to carry out field density adjustment.
User input: 5-digit floating-point number, including units
! Note!
• The preset density entered here should not vary from the actual fluid density by
a more than ±10%.
• The appropriate unit is taken from the function group SYSTEM UNITS
(see Page 15).
MEASURE FLUID 1
MODBUS register:
Data type:
Access:
6484
5126
Integer
read/write
In this function the actual density of the first fluid is measured for density
adjustment.
Options:
0 = CANCEL
1 = START
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