Commissioning; Reading Measured Values And Error Messages - Grundfos Conex DIS-G Montage- Und Betriebsanleitung

11.5.5 Setting the hysteresis for the limit values
A hysteresis can be set for the limit values of each
sensor (the sensors are set separately, but the
hysteresis of the two limit values of one sensor is
equal).
ppm
ppm
Hysteresis
1/2 hysteresis
1/2 hysteresis
1
0
1
0
Fig. 9 Distribution of hysteresis
M1 - hysteresis
0.00 ppm
M2 - hysteresis
0.00 ppm
"M2 - hysteresis" is only displayed if the device is set
to "2 sensors".
1. For each item, set the hysteresis to the desired
value by pressing the [Up] and [Down] buttons.
– Adjusting range: 0 - 0.5 ppm
– Suggested setting: 0.2 ppm.
2. Confirm each item by pressing [OK].
11.5.6 Setting the delay time for limit value 2
If limit value 2 is exceeded by one of the two
sensors, a sprinkling installation is usually triggered
to bond the leaking chlorine.
To prevent the immediate triggering of alarm
activities when the value is exceeded only briefly, a
delay time can be entered. When limit value 2 is
exceeded, the relay for limit value 2 is only activated
once this delay time has elapsed.
The alarm delay time begins when the measured
value for a sensor exceeds its value for limit value 2.
The switching of the relay for limit value 2 and the
switching of the alarm relay is being delayed (if the
alarm relay is assigned to this limit value).
Time delay
limit 2 90 s
t
1. Adjust the desired delay time by pressing the
[Up] or [Down] button.
– Adjusting range: 0 to 200 seconds
– Default setting: 90 seconds.
2. Confirm by pressing [OK].

11.6 Commissioning

1. Check if all electrical connections are correct.
2. Switch on the power supply.
– Now the device carries out a sensor test. See
section 11.7.3 Sensor
3. Check if all settings are correct.
– Now the device is ready for use.
11.7 Reading measured values and error
messages
During operation, the measured values and possible
error messages can be read:
– sensor test fault
– exceeding of limit values.
11.7.1 Reading measured values
In the display mode, the actual measured values can
always be read. One of the following menus is
displayed.
Measured value
x.xx ppm
– If one sensor is connected.
M1 x.xx ppm
M2 x.xx ppm
– If two sensors are connected.
Limit 2
Limit 1
Measured value
Relay 2
Relay 1
faults.
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