Grundfos Conex DIS-G, Инструкция по установке и эксплуатации

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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).
Fig. 9 Distribution of hysteresis
"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).
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 faults .
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.
– If one sensor is connected.
– If two sensors are connected.
TM0
3
704
6
4
5
0
6
t
1
0
1
0
ppm
Hysteresis
1/2 hysteresis
1/2 hysteresis
Limit 2
Limit 1
Measured value
Relay 2
Relay 1
ppm
M1 - hysteresis
0.00 ppm
M2 - hysteresis
0.00 ppm
Time delay
limit 2 90 s
Measured value
x.xx ppm
M1 x.xx ppm
M2 x.xx ppm