Hydrotec HydroDOS HD550G, Руководство по эксплуатации и обслуживанию, Страница: 65 / 103

I-65/103
Last change 04/2016 E-P – AL/TW/PW | Subject to technical modifications
4.7 Failure records
Record Possible reason Action
Inclination failure The inclination determined at
calibration was <20%.
- Check connections and flow and repeat
calibration
- Clean/replace electrode of probe
- Monitoring 0 or 500 mV:
check mains voltage
Contact our service staff!
Failure input 1
(electrode) Signal failure at input 1 - Control cable and connection of
electrode
- Measuring range exceeded
Contact our service staff!
Failure input 2
(temperature
sensor) Signal failure at input 2 - Check temperature sensor and cable
Failure record is even shown if no or a not
suited temperature sensor is connected.
Limit value 1 / 2 Limit value 1 exceeded
or:
Limit value 2 not reached
- Check dosing
Contact our service staff!
Dosing control 1 / 2 Controller 1 (or 2) is dosing too
long with 100 %
- Check dosing and dosing line
Caution!
A damaged dosing line may result in
chemical emission!
Contact our service staff!
Cleaning process
running The automatic sensor cleaning
will have started no more than 5
minutes ago
The info is cleared automatically after
max. 5 minutes after start of cleaning.
Calibration of chlorine dioxide measuring
is not possible whilst that record is shown!