Assessments - 3, GPA: 4
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Facilidade de uso
• This Operation Manual was written for administrator use. Instructions for the basic operations of this unit are provided separately in the standard Operation Manual. Refer to the Operation Manual when necessary. 740 McArdle Drive, Unit C – Crystal Lake, IL 60014 815-788-5200 Phone 815-788-5300 Fax Some of the settings on this unit (alarm settings, etc.) are password protected. This Operation Manual explains the following items: • Passwords • Changing settings 1 Passwords 1-1 Password-protected Settings • Span adjustment (Refer to 2-1 Span Adjustment) • 21vol% adjustment (Refer to 2-2 21Vol% Adjustment ) • The values of various settings (Refer to 2-3 Changing Setting Values) • The values of alarm settings (Refer to 2-4 Changing the Alarm Settings) 1-2 Releasing the Password Lock (1) Press these key switches in the following order. 1. ZERO switch 2. UP switch 3. Special command switch 4. DOWN switch (2) The password lock is released when the POWER lamp (green) blinks once. (3) The password lock is automatically reactivated 10 minutes after it has been released. 2 1 3 4 POWER lamp (green) Blinks once Warning Important tasks, such as changing alarm settings, span adjustment, etc., can be carried out once the password lock is released. Take the utmost care regarding confidentiality of the password. 2 Changing Settings 2-1 Span Adjustment Toxic gas sensor unit : CDS-7 Combustible gas sensor unit : CHS-7 (1) Set to maintenance mode (MNT1 or MNT2). Left: Maintenance 1 (MNT1) Center: Normal mode Right: Maintenance 2 (MNT2) TROUBLE lamp (yellow) blinks. MNT1 or MNT2 is displayed at the bottom of the LCD screen. The “__” indication and the concentration value of the detected gas blink alternately. Pull back to open (2) Release the password lock. (Refer to 1-2 Releasing the Password Lock.) (3) Press the SPAN switch. SPAN switch SPAN is displayed at the bottom right of the LCD screen. (4) Let the calibration gas through. (5) Use the UP/DOWN switch to adjust the concentration indication on the screen to that of the calibration gas concentration. (6) Once adjustments have been done, press the SPAN switch again. The SPAN indication in the bottom right of the LCD UP/DOWN switch screen will go off, and the span adjustment will be completed. (7) Remove the calibration gas, check that the detected gas concentration is under that of the alarm value, and restore to the normal mode (by switching the maintenance switch to the center). 2-2 21Vol% Adjustment Oxygen sensor unit: COS-7 (1) Set to maintenance mode (MNT1 or MNT2). TROUBLE lamp(yellow)blinks. The “__” indication and the concentration value of the Oxygen blink alternately. MNT1 or MNT2 is displayed at the bottom of the LCD screen. Pull back to open Left: Maintenance 1 (MNT1) Center: Normal mode Right: Maintenance 2 (MNT2) (2) Release the password lock. (Refer to 1-2 Releasing the Password Lock.) (3) Press the SPAN switch. SPAN is displayed at bottom of the LCD screen SPAN switch (4) Let the calibration gas through. (5) Use the UP/DOWN switch to adjust the concentration indication on the screen to that of the calibration gas concentration. (6) When the adjustment is completed, press the SPAN switch again. The SPAN indication in the bottom right corner of the LCD screen will then disappear, and the 21vol% adjustment is complete. (7) Remove the calibration gas and confirm that no alarm is displayed( ALARM 1 , ALARM 2 is not shown). Then, restore to the normal mode by switching the maintenance switch to the center. 2-3 Changing Setting Values Some of the setting values of the unit can be changed. Those that can be changed are listed in the table below. The method for changing them is explained here. (1) Release the password lock. (Refer to 1-2 Releasing the Password Lock.) (2) Press the UP/DOWN switch (“..” or “..”) until the setting you wish to change ( “LCD Screen Indication” in the table below ) is displayed at the bottom right of the LCD display. Setting to be changed UP/DOWN switch (3) Then press the special command switch, and the setting to be changed ( “LCD Screen Indication” in the table below ) and “—“ will flash alternately. -- - - - d1 0 Special command switch (4) Change the value by using the UP/DOWN switches (“..” or “..”). When you are done, press the special command switch again, and the alternating display in the bottom right corner of the LCD display will become constant. The process is now finished. Each time the UP switch is pressed, it will move down the table to the next item. When the DOWN switch is pressed, it will move up one. LCD Screen Indication The function to be set Remarks Default value Adjustable Range Toxic: CDS-7 Combustible : CHS-7 Oxygen: COS-7 d1 ** Time delay 1 Time delay (secs.) of the gas alarm contact (1st level) d1 0 d1 0 0 to 99 sec d2 ** Time delay 2 Time delay (secs.) of the gas alarm contact (2nd level) d2 0 d2 0 0 to 99 sec az Analog output (base) (*For our maintenance purposes only) . . . as Analog output (span)...