AMU pH-Redox
Program List and Explanations
A-96.250.441 / 060619
73
5.3.1.5
Case Temp. low:
Set the alarm low value for temperature of elec-
tronics housing. If the value falls below the programmed value
E014 is issued.
Range: -10–20 °C
5.3.2 and 5.3.3
Relay 1 and 2:
The contacts can be set as normally open or nor-
mally closed with a jumper. See
.
The function of relay contacts 1 or 2 are defined by the user
NOTICE:
The navigation in the menu <Relay 1> and <Relay 2>
is identical. For reason of simplicity only the menu numbers of
Relay 1 are used in the following.
1
First select the functions as:
- Limit upper/lower,
- Control upwards/downwards,
- Timer
- Fieldbus
2
Then enter the necessary data depending on the selected func-
tion.
When the relays are used as upper or lower limit switches, program
the following:
5.3.2.20
Parameter:
select a process value:
Meas. Value
Temperature
Sample flow
5.3.2.300
Setpoint
: If the measured value rises above respectively falls below
the set-point, the relay is activated.
5.3.2.1
Function = Limit upper/lower:
Parameter
Range:
pH sensor
Redox sensor
Meas. Value
-3.00 pH to +15.00 pH
-500 mV to +1500 mV
Temperature
-25 °C to +270 °C
Sample flow
0–200 l/h