Endress+Hauser Topclean S CPC30, Руководство по эксплуатации

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Topclean S 6 Commissioning
Hauser 49
6.2 Special features for measurement with ISFET sensors
Switch-on behaviour
A closed control loop is created once the measuring system is switched on. During this time (approx.
5-8 minutes), the measured value adjusts to the real value. This settling behaviour occurs each time
the liquid film between the pH-sensitive semiconductor and the reference lead is interrupted (e.g.
caused by dry storage or intensive cleaning with compressed air). The settling time in question
depends on how long the interruption lasts.
Sensitivity to light
Like all semiconductor elements, the ISFET chip is sensitive to light (measured value fluctuations).
However only intense direct illumination impinges on the measured value. For this reason, avoid
direct exposure to sunlight during calibration. Normal ambient light does not affect measurement.
6.3 Installation and function check control
#
Warning!
Before power-up, make sure there is no danger to the measuring point. Uncontrolled actuated
pumps, valves or similar could lead to damage to instruments.
"
Caution!
• Before switching on, check all the connections again for correctness.
• Make sure that the pH or redox electrode and the temperature sensor are in the medium or in a
buffer solution, otherwise no plausible measured value can be displayed.
• Make also sure that the connection check has been carried out (s. chap. 4.7).
6.4 Switching on the device
Before first start-up, make sure you understand how to operate the device. You should make
particular reference to Chapters 1 ("Safety instructions") and 6 ("Operation").
We recommend the following procedure for commissioning:
1. Connect Mycom S CPM153 to the power supply.
2. Switch the service switch to "OFF" or to the Service position .
3. Wait for initialisation of CPM153 and CPG30.
Function of the green "Alive LED":
– Frequency 2/sec: communication is running
– Frequency 1/sec: communication is loading
– LED lights up constantly: no communication
If the LED does not light up, check the power supply at terminals L+/L– (setpoint: 12 volts).
4. First commissioning only:
Execute the menu "First start up", chap. 6.5, page 51.
5. Switch the service switch to the Measuring position or to "ON".
6. Set the following parameters:
– Select a function for the additional valve (page 93).
– Configure the times of the "Clean" programme (page 54).
7. Start the "Clean" programme and check the entire system for leaks.
Programme start :
"PARAM"
➠
Specialist
➠
Manual operation
➠
Topclean
➠
Status messages (Enter)
➠
"Start
programme"
➠
"Clean"
8. Now configure the complete system via the menu.