Jesco TOPAX L1, Инструкция по эксплуатации и техническому обслуживанию

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| Operation & Maintenance Instructions TOPAX L1/L4/L5 | Service
8. Operation and Maintenance
Device maintenance
Device operation is maintenance free. No check settings are required during operation.
Should you however require a verification of your device at any time, you can forward it to
us. It shall be returned to you within two weeks together with a protocol test report.
Display contrast
The display contrast of the device can be adjusted in the wall-mounted casing using a
potentiometer. The potentiometer is designated by “Display” in the connection diagram.
Safety protection replacement
Wall mounted devices are equipped with an internal safety protection that may have to be
replaced under some circumstances. A spare safety protection is accordingly provided on
issue with the device. You will find it is stored in the terminal covering. Instructions regar-
ding safety protection are provided under the “Technical Specifications” section herein.
For safety protection replacement, it is necessary to unscrew and remove the front end of
the device by carefully flipping it upwards. The safety protection is located below and on
the right hand side. It is locked on with a bayonet catch. Rotate the catch leftwards, until
the safety protection slips out. Exchange it with the spare safety protection and fasten it in
place by turning the catch rightwards. Replace the front end of the device again and screw
it on firmly.
WARNING!
Prior to opening the device, make sure that it is completely powered down!
CAUTION!
During service and maintenance operations, be careful with the connection
cable located on the front of the device!
Cleaning
Please ensure that during cleaning operations, the face end of the device does not come
into contact with solvents such as methanol, alcohol or methylated spirits. Take care that
no water leaks into the device. We recommend cleaning the device by simply wiping it with
a clean, damp cloth.
Measurement maintenance
Both chlorine measurement and chlorine dioxide measurement must be calibrated on a
regular basis.
NOTE!
During each calibration, the device tests the utility of the sensors and specifies
when a sensor needs to be cleaned or replaced. For more details, please refer to
the “Error Advisory” section of this manual.