Measurement; Cleaning; Operation - Hach CD300 Benutzerhandbuch

Operation

Configure the controller
1. Push Options in the navigation bar to set the general settings, measurements and cleaning
intervals.
2. Select an option.
Option
General settings
Measurement &

Cleaning

Relais & Buzzer
Description
Selects the language. Sets the system time. Shows the system status and contact
information.
Select the box "Measurement" to enable an automatic measurement and set a
measurement interval. Measurement interval: 30 seconds to 1 day (default: 2 minutes)
Select the box "Sensor power down after measurement" to save power.
Push Trigger now to measure a single sample.
Select the box "Cleaning" to enable the cleaning and set the parameters that follow:
• Active: on
• Cleaning interval: 30 seconds to 6 hours (default: 15 minutes)
• Cleaning duration: 5 to 20 seconds (default: 10 seconds)
• Pause before measurement: 5 seconds to 5 minutes (default: 5 seconds)

Measurement

interval
Minimum 30 seconds
Typical 2 minutes
Maximum 1 day
To start a cleaning immediately, push Clean now.
Select the box to enable the relay control and set the parameters that follow:
• Active: on
• Select the parameter
• Action level: Sets the measurement range in which the relay operates.
• Upper level: Sets an alarm to occur when the measurement is higher than the set
point value.
• Lower level: Sets an alarm to occur when the measurement is lower than the set point
value.
The buzzer is a local signal of the instrument. Select the box to enable the instrument
buzzer and set the parameters that follow:
• Active: on
• Select the parameter
• Action level: Sets the measurement range in which the buzzer operates.
• Upper level: Sets the buzzer to occur when the measurement is higher than the set
point value.
• Lower level: Sets the buzzer to occur when the measurement is lower than the set
point value.
Cleaning Cleaning time
interval
30 seconds 5 seconds
15 minutes 10 seconds
6 hours 20 seconds
Pause before
measurement
5 seconds
5 seconds
5 minutes
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