Teledyne 7300A manual Press enter again to set the alarm setpoints

4 Operation Model 7300A

alarm status will terminate when process conditions revert to non- alarm conditions.

4.Are either of the alarms to be defeated?

The defeat alarm mode is incorporated into the alarm circuit so that maintenance can be performed under conditions which would normally activate the alarms.

The defeat function can also be used to reset a latched alarm. (See procedures, below.)

If you are using password protection, you will need to enter your password to access the alarm functions. Follow the instructions in section 4.3.3 to enter your password. Once you have clearance to proceed, enter the Alarm function.

Note: If all ranges are for the same application, set any one of them will automatically set the others.

Press the Alarm button on the front panel to enter the Alarm function. Make sure that 01 is blinking.

Sel rng to set alm:

—> Ø1 Ø2 Ø3 <—

Set up the Range 1 alarm by moving the blinking over to 01 using the UP/ DOWN arrow keys. Then Enter. Check the gas application and range limits as displayed on the screen.

Gas use: CO2

Range: 0 — 10 %

Press enter again to set the alarm setpoints.

Sel %/ppm alm to set

AL1—PPM AL2—PPM

Use the UP/DOWN keys to choose between % or ppm units. Then Enter to move to the next screen.

AL1: 1ØØØ ppm HI

Dft:N Fs:N Ltch:N

Five parameters can be changed on this screen:

•Value of the alarm setpoint, AL1: ####

•Out-of-range direction, HI or LO

•Defeated? Dft:Y/N (Yes/No)

•Failsafe? Fs:Y/N (Yes/No)

•Latching? Ltch:Y/N (Yes/No).

•To define the setpoint, use the UP/DOWN key while screen is blinking over to AL1: ####. Use the UP/DOWN key to change

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