4.6
What must be programmed when connecting the analogue output?
The analogue output can be used only if the instrument was ordered with analogue output
(TD 8250-A ..).
The analogue output can be assigned to flow rate or volume measurement.
Flow rate measurement:
A
“0”
is inserted under the menu reference
“07”
. This takes place at the position desig-
nated
“Display”
(
§ 4.1 "Overview of the input values").
Volumetric measurement:
A
“1”
is inserted under the menu reference
“07”
. This takes place at the position desig-
nated
“Display”
(
§ 4.1 "Overview of the input values").
Signal selection:
Menu reference 08
Analogue output
0XXX
0 - 20 mA
1XXX
4 - 20 mA
The digits identified with an “X” in the Menu reference “08” column are of no significance to the set-
ting procedure.
The maximum value is entered under the menu reference
“01”
, maximum analogue output,
corresponding to an output of 20 mA.
Example: Switch-on value: 0.000
Switch-off
value:
3.000
The flow rate is 3,500 Litres/minute, so 20 mA are output. If the flow rate is 0,000 Li-
tres/minute, then 0 mA is output.
5
Maintenance and Cleaning
Maintenance:
The TD 8250 is maintenance-free and cannot be repaired by the user. In case of a defect, the
device must be replaced or returned to the manufacturer for repair.
CAUTION! Material damage!
When opening the device, critical parts or components can be damaged.
Never open the device and perform any repair yourself.
Cleaning:
Clean the TD 8250 with a dry or slightly damp lint-free cloth. Do not use sharp objects or ag-
gressive agents for cleaning.