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Summary of Contents for Aysix Technologies 2000CE
- Page 1 MODEL 2000CE PROCESS ANALYZER MODEL 10 OPTICAL DISSOLVED OXYGEN SENSOR MODEL 15/15L OPTICAL SUSPENDED SOLIDS SENSOR REVISION – November 28, 2005 AYSIX TECHNOLOGIES 2595 DUNWIN DR.#2 L5L 3N9 MISSISSAUGA TEL: 905 569 6246 FAX: 905 569 6244...
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Page 2: Table Of Contents
TABLE OF CONTENTS Product Description .................. 3 Packaging ....................3 INSTALLATION ..................4 Analog Outputs..................5 Digital Output ..................... 5 Relay Outputs..................... 5 OPERATION....................6 Run Mode....................6 Main Menu ....................6 Setup Mode....................6 Relay ......................7 Clean Mode....................8 Demand Clean.................... -
Page 3: Product Description
GENERAL INFORMATION Product Description The Model 2000 Process Analyzer is a two channel analyzer designed for the continuous measurement of dissolved oxygen and/or suspended solids in mixed liquor aeration basins. The microprocessor-based electronics of the Model 2000 analyzer provide a high degree of flexibility and ease of use. -
Page 4: Installation
INSTALLATION The Model 2000 analyzer should be located convenient for an operator to read and technician to install and maintain. A rear rail mounting kit is available for the standard enclosure (see Drawing IIG01N110). This mounting kit is design for a standard 2” handrail but can be adapted to square or angle handrails as well. -
Page 5: Analog Outputs
Note: The Model 10 D.O. sensor undergoes a thorough and accurate test and calibration procedure before shipment from the factory. Calibration of the D.O. reading at startup is not necessary and is not recommended. Analog Outputs Two isolated 4-20 or 0-20 milliamp signals capable of driving 600 ohms are available from the terminal block labeled TB1. -
Page 6: Operation
OPERATION Note! – In “Normal Operation” the hinge cover is to remain tightly screwed closed. Under no circumstance is it necessary for the operator to open the enclosure. Run Mode The RUN mode is the normal operating mode of the analyzer and is entered upon power-up. When the Run mode is entered the analyzer will determine what types of sensors are attached to each channel. -
Page 7: Relay
Second, use the “ARROW” keys to move the cursor to the desired setup function, then press the “ENTER” key. The sub-menu for that group will be displayed. Use the “ARROW” keys to move the cursor to specific item to be changed, then press the “ENTER” key. When the user is finished making the adjustment, press the “MENU”... -
Page 8: Clean Mode
Relay #3: Relay 3 has three modes, ALARM, CA2 CLEAN, and SPECIAL. ALARM MODE: In this mode, the relay is energized for normal operation and will become deenergized if an error condition occurs. Consequently, loss of power can be sensed remotely as an alarm condition. -
Page 9: Modbus Setup Mode
ANALOG 2 TYPE – select 4-20mA operation, 0-20mA operation, or 4-20mA output of channel 1’s temperature (only available if channel 1 is a DO sensor) for the Analog 2 output. ANALOG 2 FULL SCALE – defines the value that will cause the Analog 2 output to go to 20mA. ANALOG 2 MIN SCALE –... -
Page 10: Sensor Setup
SENSOR SETUP Each channel has its own sensor setup menu. The analyzer will select the appropriate menu for the type of sensor that is currently connected to each channel. DO Sensor General The Model 10 sensor has been designed to require very infrequent calibration. Unlike polaragraphic systems, light fouling of the sensing element should not affect the accuracy of the reading, but should only slow the response time of the system. - Page 11 minute to dissolve the salt. Submerge the Model 10 sensor in this water and allow it to rest for at least 30 minutes. For best accuracy, the sensor should be resting face down in the bottom of the container. (The solution stratifies over time at rest, and the dissolved oxygen content will be closest to zero at the bottom of the container, while slightly above zero nearer the surface.) Also make sure that no air bubbles are trapped on the face of the sensing element during the soak.
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Page 12: Ss Sensor Calibration
SS SENSOR CALIBRATION To do a complete calibration, three steps are required. The analyzer must first be zeroed, and then a sample/snapshot is taken. After the sample has been analyzed, the span of the analyzer can be adjusted to the sample. As long as the lenses are kept clean, frequent recalibration should not be necessary. Every six months should be more than adequate for a complete calibration. -
Page 13: Ch 2 Mode
menu using the up and down arrow buttons and press the "ENTER" button. The value that was previously saved snapshot will be displayed. Use the up and down arrow buttons to adjust the analyzer reading to the value of the laboratory analysis. Press the "Enter" button when done. The system is now calibrated and ready for normal operation. -
Page 14: Test Mode
Test Mode This mode of operation allows the user to perform basic test functions to aid in troubleshooting. There are a total of 13 tests which may be performed. Operation of the TEST MODE proceeds as follows. From the Main Menu use the arrow keys to move the cursor to the TEST option, then press the “ENTER”... - Page 15 Test Modbus Test Modbus will test the RS-485 communication port. Software Version Software Version displays the current version of software in the analyzer. To exit, press the "MENU" button. View Sensor 1 Char This test is intended primarily to aid the Aysix technical support engineers in troubleshooting. The characteristics for the channel 1 sensor are displayed.
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Page 16: Error Messages
ERROR MESSAGES During operation, the Model 2000 analyzer may determine that an error condition exists. If this happens, the display will contain an error message. The 4 possible error messages are as follows: **SENSOR NOT RESPONDING** This error message indicates that the analyzer is not receiving any data from the sensor. This could be caused by either the sensor is not properly connected to the analyzer or a faulty sensor or analyzer electronics. -
Page 17: Maintenance
MAINTENANCE The analyzer does not require any periodic maintenance. However, it may be necessary to periodically clean the exterior of the analyzer. This may be done with a soft brush, broom or low pressure water rinse. DO NOT! use hi-pressure water or a pressure washer to clean the analyzer. -
Page 18: Drawings
Appendix A - Modbus Protocol Analyzers support communication with other devices via the Modbus protocol using RTU transmission mode. The Modbus protocol defines a message structure that controllers will recognize and use, regardless of the type of networks over which they communicate. It establishes a common format for the layout and contents of message fields. - Page 19 Function codes supported by the Model 2000 01 Read Coil Status Description Reads the ON/OFF status of the relays in the Model 2000 analyzer. Query The query message specifies the starting relay and quantity of relays to be read. Relays are addressed starting at zero.
- Page 20 04 Read Input Registers Reads the binary contents of input registers in the Model 2000 analyzer. Query The query message specifies the starting register address and the quantity of registers to be read. The Model 2000 input registers are as follows: Address Register 0000...
- Page 21 Preset Single Register Presets a value into a single register of the Model 2000 analyzer. Query The query message specifies the register to be preset. The demand clean cycle register is the only register in the Model 2000 which can be written to. When any value is written to this register, a clean cycle is initiated.
- Page 22 17 Report Slave ID Returns a description of the type of device at the slave address. Query Below is an example of a request to report the ID and status of slave address 1. Field Name Example Slave Address Function The normal response of the Model 2000 is shown below.
- Page 23 Exception Responses If the Model 2000 analyzer receives a query without a communication error, but cannot handle it, an exception response will be returned. In a normal response, the Model 2000 echoes the function code of the original query in the function code field of the response.
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Page 24: Appendix B - Ca-2 Jet Clean System
Appendix B – CA-2 Jet Clean System The cleaning system uses a pressurized stream of air or water to remove bio growth or other debris from the optical surfaces of our sensors. The Aysix analyzers control the frequency and duration of the clean cycle through relays #3 and #4.
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