Modbus Registers; Maintenance Schedule; Clean The Sensor - Hach 9181600 Manual De Usuario

Option
CAL REMINDER
OP ID ON CAL
Data log
The controller provides one data log for each sensor. The data log stores the measurement data at
selected intervals (user configurable). The data log can be read out in a CSV format. For instructions
on downloading the logs, please refer to the controller user manual.
Refer to Select temperature parameters
information about setting time intervals for data storage in the data log.

Modbus registers

A list of Modbus registers is available for network communication. Refer to www.hach.com or
www.hach-lange.com for more information.
Maintenance
Multiple hazards. Do not disassemble the instrument for maintenance or service. If the internal components must
be cleaned or repaired, contact the manufacturer.
Personal injury hazard. Only qualified personnel should conduct the tasks described in this section of the manual.

Maintenance schedule

Maintenance task
Clean and inspect the sensor

Clean the sensor

Chemical hazard. Always wear personal safety protection in accordance with the Material Safety Data Sheet for
the chemical that is used.
Examine the sensor periodically for debris and deposits. Clean the sensor when there is a buildup of
deposits or when performance has degraded.
Pre-requisites: Prepare a mild soap solution with a non-abrasive dishwashing detergent that does
not contain lanolin. Lanolin leaves a film on the electrode surface that can degrade the sensor
performance.
1. Turn off the flow.
2. Loosen the lock ring and remove the pH sensor from the flow cell.
3. Rinse the sensor with a stream of clean, warm water. If debris remains, carefully wipe the entire
measuring end of the sensor with a clean, soft cloth to remove the loose contaminate buildup.
Then rinse with clean water.
4. Soak the sensor for 2 to 3 minutes in the soap solution.
5. Use a soft bristle brush and scrub the entire measuring end of the sensor, thoroughly cleaning the
electrode and reference junction surfaces.
Description
Sets a reminder for the next calibration in days, months or years.
Includes an operator ID with calibration data—Yes or No (default). The ID is entered
during the calibration.
on page 10 and
W A R N I N G
W A R N I N G
Select pH parameters
C A U T I O N
Frequency
90 days
(The pH sensor may need to be cleaned more often
depending on water quality.)
on page 11 for
English 15