iQntrol DOS-MODBUS
Original manual in German Version 1.0.2 2022.10.06
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8.2.1.5
Main menu
Settings
Temperature
Alarm low
lower alarm value
Set point
the device attempts to reach this value
Control range
if the temperature falls below the set point minus the control
range (hysteresis), the Temperature output will be activated
Example: Set point 25 °C – 2.0 K
actual value ≤ 23 °C = output active
Alarm high
upper alarm value
Offset
for fine-tuning the temperature display
If an abnormal temperature, e.g., > 150°C, is displayed, this can be caused by the
following.
3. A sensor or a cable is broken. >1650 Ω ≈ 170 °C
4. There is a short circuit in a sensor or cable. < 880 Ω ≈ -30 °C
ATTENTION!
“Danger of frost” If the temperature control is used for the overwintering of an outdoor pool, it must be considered
that too short filter running times, an extended voltage interruption or a device failure can lead to a failure of the
pool heating!
This may result in frost damage to the pool! For this reason, it is recommended to conduct regular checks of the
pool system or use other safety measures (e.g., ice pressure cushions).
8.2.1.6
Main menu
Settings
Dosing delay
Dosing delay
If the device is restarted, the dosing delay is running, during which time no dosing
occurs. Software alarms are suppressed during this time. The dosing delay must
be set high enough to ensure that after the start of the filter system actual basin
water flows through the measuring cell.
8.2.1.7
Main menu
Settings
System
Date/ time
Set date and time
Password
Assign a password – there is no factory setting for a user password
Display
Adjust the display brightness to the ambient conditions
Network
Set the network addresses
Language
Select the user language
Device ID
Device ID