- PROCEDURE:
- Precautions:
- Do not remove back cover with unit ON or Power to the unit ON.
- UV light is harmful to the eyes.
- Take appropriate action to maintain condition during sensor cleaning, replacement or sensor or instrument calibration.
- Operation Procedure:
- Operation Procedure:
- Turn ON the power at the switch on the rear panel of the analyzer.
- Title screen will appear. High temperature units display 550-HT and SX units display 550-SX.
- Before starting to measure, be sure the flow rate is adjusted to 20mL/min (unless otherwise not specified).
- Press “START/AUTO” to initiate the system check and measure process.
- The system check is blinking. The Analyzer does an automatic zeroing to correct for any drift.
- The system check passed now solid. UV Warming Up is blinking UV Lamp is stabilizing during this period.
- After the Primary measurement is display.
- The time interval is determined by print setup.
- After press ESC return to the measurement display.
- From the above screen, the measurement trend check mode can be accessed with ENTER.
- The past record of measurement values can be accessed with UP/DOWN.
- Pressing ENTER again will show the three most current readings on the display.
- lines of data are stored. The values are the instantaneous measurement at the time shown, not an average value.
- ESC will return the display to the regular measurement screen.
- Trend data clear:
- If the unit has been moved and a new sample is being introduced, or it is otherwise desirable, trend data can be erased.
- First, stop measurement with the START/STOP button. Press menus key and then access trend clean in system config2 using the NEXT and DOWN keys.
- Press enter key then select history clear using the DOWN key and press ENTER. Toggle to ON using UP/DOWN keys, and press ENTER. The trend data will be cleared
- Print trend data:
- If a printer is connected to the printer port, the measurement trend data can be printed.
- Push menus and move the asterisk to print setup.
- Press ENTER to enter this menu
- Press enter
- Select Nr. of data using the down key and press ENTER. Move the cursor using the NEXT key and change to the desired number of most recent data lines to print with the UP/DOWN keys.
- Press ENTER. The number of data lines will print out
- Push ESC twice to return to the measurement display.
- To terminate measure at any time, press START/STOP, and the display will return to the TITLE screen.
- Lamp replacement:
- Stop measuring by pushing the START/STOP key.
- Switch power OFF.
- Disconnect the power cord.
- Allow unit to cool 10minutes before changing the lamp.
- Remove the round plate on the back panel of the analyzer.
- Unplug the UV lamp lead
- Pull the lamp straight back. Loosening it from its socket, and removing it from the unit.
- The reverse procedure is used to install the new lamp.
- Grasp the new lamp at its outboard end, being careful not to touch the glass, and insert the lamp in the socket.
- Replace the round plate.
- Connect the power cord.
- Turn power ON.
- The calibration shall be done after every lamp replacement.
- The UV time must now be cleared in the software, so that the timer will start with 0hours for the new lamp.
- The UV time CLR is accessed as follow.
- Press menus then scroll to MAINTENANCE using the down key.
- Press enter and change password (Factory default is 0000) using the UP key.
- Select maintenance 4/4 using UP/DOWN key.
- Scroll to Other setup using the DOWN key.
- Press enter and toggle ON using UP/DOWN key. Press ENTER
- Press NEXT to access UV TIME
- Select UV TIME CLR using the down key.
- Press ENTER and toggle UV TIME CLR to ON using the UP/DPWN key and press ENTER. UV ON TIME will reset to 0000.
- UV TIME CLEAR will automatically return to OFF after clearing.
- Press ESC three times to return to TITLE screen.
- Press START to resume measurement
- ABBREVIATIONS:
| No. | : | Number |
| TOC | : | Total Organic Carbon |
| CCR No | : | Change Control reference number |
| SOP | : | Standard Operating Procedure |
| QC | : | Quality Control |