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KROHNE OPTISENS AAC 050 R, Инструкция по установке и эксплуатации

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Manual OPTISENS AAC 050  

 

27 

OPTISENS AAC 050

 

 

 

 

8.

 

Operation and maintenance 

8.1

 

Maintenance of the device 

 

The device does not require any maintenance. There is no need for readjustment. If you want to have the 
device checked regularly, you are welcome to send it to KROHNE Water Solutions. Alternatively the device 
can be checked on site by one of our engineers. 

 

 

8.2

 

Display contrast 

 

With devices in wall-mounting enclosures the display contrast can be adjusted to the actual light conditions 
by means of a potentiometer. It is indicated in the connection diagram with the word „display“. 

 

 

8.3

 

Exchange fuse 

 

Devices in wall-mounting enclosures have an internal fuse which has to be replaced at need. You will find a 
spare fuse fixed to the inside of the terminal cover. Information on the fuse can be found in the chapter 
„Technical data“.  
 
To exchange the fuse, open the front carefully. The fuse is located on the right hand side. It is kept in place 
by a Bayonet lock. Turn the lock to the left until the fuse pops up. Exchange it and fix the new fuse by turning 
the lock to the right. Put the front back on and fix it tightly.  
 

 

WARNING 

Disconnect the power supply before opening the device! 

 

ATTENTION 

Mind that the cable connections to the front are not damaged, broken or torn during the process! 

 

 

8.4

 

Cleaning 

 

The front and the display should not get in touch with organic solutions such as methanol. Never let water 
get inside the device. We suggest to simply use a damp cloth for cleaning. 
 

8.5

 

Maintenance of the potentiostatic measurement 

 

The metal surfaces of the electrodes must be cleaned regularly. Membrane sensors need a refill of 
electrolyte regularly and an exchange of the membrane at needs. For all types of sensors the slope must be 
determined regularly by calibration. 
 

NOTE 

The instrument checks the sensor’s response characteristic after each calibration and displays an error 
message if the sensor has to be cleaned or replaced. See chapter „Error messages“. 

 

 

8.6

 

Disposal 

 

For disposal please notice that the device contains electrolyte capacitors which have to be disposed 
separately. 

 

 

Содержание OPTISENS AAC 050 R

Страница 1: ...llation and Operating Instructions OPTISENS AAC 050 Measuring and control instruments for potentiostatic measurements of Chlorine total Chlorine Chlorine dioxide Oxygen Ozone and Hydrogen peroxide 07...

Страница 2: ...ion of the converter 15 4 2 Calibration 15 4 3 Temperature compensation 16 4 3 1 Calibration of the temperature measurement 16 4 4 Automatic Sensor Cleaning ASR option 17 5 Adjustments of the controll...

Страница 3: ...Manual OPTISENS AAC 050 3 OPTISENS AAC 050 9 2 1 Panel mounting enclosure 30 9 2 2 Wall mounting enclosure 30 10 Device return form 31 11 Customer settings for reference 32...

Страница 4: ...le and Delivery found on the back of the invoice and forming the basis of the purchasing contract are applicable General limitation on liability Unless otherwise expressly set forth in the Standard Te...

Страница 5: ...safe usage follow all instructions carefully and pay special attention to all warnings issued in this manual If the device is visibly damaged or has been stored inappropriately or if there are any dou...

Страница 6: ...ntroller types ON OFF controller with hysteresis P controller as Pulse Pause Impulse Frequency or steady controller PI controller as Pulse Pause Impulse Frequency or steady controller Hysteresis adjus...

Страница 7: ...r by sliding the slot under a screw which is an alternative for limited space Either way you have to fix it additionally with two screws ATTENTION Install the device in a place where it is not put und...

Страница 8: ...upon the upper screw In that case drill the upper hole 120mm 4 7 above the lower two 2 Or you can slip the fixture on the back of the device under the upper screw In that case the upper hole has to be...

Страница 9: ...ly The potentiostatic measurement is interference sensitive especially when using membrane sensors Use a special screened cable Membrane sensors are delivered complete with cable When using the relays...

Страница 10: ...lectrode sensors bridge 3 4 1 2 measurement 3 6V Membrane Sensor with electronics 1 4 4 6V Pt100 NTC 5 6 Analog output 9 10 9 10 max burden 500 Ohm Digital input 11 12 11 12 external controller stop o...

Страница 11: ...ement 3 6V Membrane sensors with electronics 1 4 4 6V Pt100 NTC 6 7 Display contrast Display Potentiometer to adjust the display contrast Analog output 11 12 11 12 max burden 500 Ohm Relay 1 14 15 Rel...

Страница 12: ...ring With key Enter changes are stored For your convenience arrows in the display indicate the directions you can take from your position in the menu 3 1 How to adjust parameters Temp comp Manual 1 Wh...

Страница 13: ...mp Temperature compensation only for pH measurements Enter password Password function Set points Controller settings set points P ranges I functions Limit values Alarm function Basic settings Basic se...

Страница 14: ...anual compensation Flow rate Display of the flow measurement Basic settings Basic settings Cal Pt NTC Calibration of the temperature measurement Flow rate Calibration of the flow measurement Flow alar...

Страница 15: ...peroxide H2O2 0 0 100 0 mg l Input 2 works with the temperature sensors Pt100 or NTC 4 2 Calibration Main menu Calibration DPD Calibration DPD Calibration 0 48 mg l Slope Enter the concentration dete...

Страница 16: ...nual Temp 25 0 C Basic settings Calibration Pt 100 NTC Basic settings Cal Pt 100 NTC Cal Pt 100 NTC 0 0 C Temp coefficient Temp coeff Temp coeff 0 0 K Select between two ways of compensation 1 Automat...

Страница 17: ...last measured value for five minutes and the message cleaning in progress is displayed As a safety measure attempts to calibrate within these five minutes are ignored Activation and timing The cleani...

Страница 18: ...eved by either reducing the switch frequency Impulse frequency controller or reducing the time within a given period of time in which the relay is ON pulse pause controller The parameters for a P cont...

Страница 19: ...nu Set points and controller version Set points Set point S1 You can choose different 1 50 mg l Controller versions P range S1 For S1 and S2 0 20 mg l Integral time S1 000 sec Set point S2 0 50 mg l C...

Страница 20: ...pulse pause controller you have to set the following parameters 1 Set points S1 and S2 S1 refers to relay 1 S2 refers to relay 2 2 P range and integral action time Adjust a P range 0 For a P controll...

Страница 21: ...y Turn on delay Turn on delay OFF ON Turn on delay 180 s 5 5 Turn on delay Set a delay time which has to pass before the controller is activated after start up or power interrupt This allows the measu...

Страница 22: ...1 402 mS 25 0 C S1 S2 Man 6 Switch ON relay 2 with key The square to the left of S2 gets dark 1 402 mS 25 0 C S1 S2 Man 7 Switch OFF relay 2 again with key The square gets light 1 402 mS 25 0 C S1 S2...

Страница 23: ...s it happens regularly that the measured value exceeds a limit for a short period of time To avoid having an alarm issued under these circumstances you can adjust a turn on delay which has to pass bef...

Страница 24: ...of calibration failure the controller is not deactivated to enable you to continue the dosing or treatment process until a replacement sensor is at hand Sensor check during measurement During measure...

Страница 25: ...e sensor was used Limit 1 2 The measured value exceeded limit 1 or dropped below limit 2 respectively Please check the dosing and readjust the control parameters if necessary Dosage check 1 2 Controll...

Страница 26: ...g 4 20 mA the resolution is lower but defective cable connections are immediately evident With the parameters Begin and End you define which part of the measuring range you want to read out Alternativ...

Страница 27: ...a Bayonet lock Turn the lock to the left until the fuse pops up Exchange it and fix the new fuse by turning the lock to the right Put the front back on and fix it tightly WARNING Disconnect the power...

Страница 28: ...tion of the device hardware and software 8 7 2 Analog inputs Here you can see the raw data the device obtains from the sensors They are not influenced by compensations or calibration and offer valuabl...

Страница 29: ...ature with dimensions indication of relay status Current outputs 2 x 0 4 20 mA galvanically isolated max loading 500 Ohm Interface option RS485 Baud rate 9600 data format 8Bit 1 Start and 1 Stop bit C...

Страница 30: ...Manual OPTISENS AAC 050 OPTISENS AAC 050 30 9 2 Dimensions 9 2 1 Panel mounting enclosure 9 2 2 Wall mounting enclosure...

Страница 31: ...firming that the device is safe to handle If the device has been operated with toxic caustic flammable or water endangering products you are kindly requested to check and ensure if necessary by rinsin...

Страница 32: ...or conductivity for Temperature Controller S1 Controller S2 Controller S1 Controller S2 Start Start End End Controller Controller S1 Controller S2 Acting direction Acting direction raise lower raise l...

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