Sentry Industries 5000 instruction manual Step Activity Display, Calibration Parameters

SMC sierra monitor corporation Sentry Instruction Manual - Version 6

5.2.2 CALIBRATION PARAMETERS

Use the CHANGE CALIB menu to configure calibration parameters as follows: Calibration parameters remain in Sentry memory until changed by the operator, they do not require initiation at every calibration

Step	Activity	Display
1	Select CHANGE CALIB menu	PRESS ENTER TO
		<CHANGE CALIB>
	Use MODE key to select CHANGE CALIB
2	Select Gas Type	USE ARROWS/ENTER
		GAS TYPE: COMB
	Sentry displays the last gas type which was
	calibrated. Use the arrow keys to change the type.
	Press ENTER to continue to the next parameter
3	Edit Full Scale	USE ARROWS/ENTER
		FULL SCALE = 100
	If the full scale value is set above 999, the display
	will default percent full scale (%FS). (Alarm
	values must be set using PPM, not %FS.) Press
	ENTER to continue to the next parameter.
4	Edit Span Gas Concentration	USE ARROWS/ENTER
		CALIB CONC = 050
	Use arrow keys to set the span gas concentration
	to match the concentration of gas to which the
	sensors will be exposed. Press ENTER to continue
	to the next parameter
5	Edit Calibration Frequency	USE ARROW/ENTER
		CAL FREQ =30 DAYS
	Use the arrow keys to set the number of days till
	the next calibration. Sentry will use this number
	to count down to the next calibration and display
	"CALIBRATION OVERDUE". Press ENTER to
	continue to the next parameter.
	The calibration overdue message is a notification
	only and does not cause the module to go out of
	service. The message can be suppressed by
	setting the calibration frequency to "00" days at
	the time of calibration
6	Select Calibration Method	USE ARROWS/ENTER
		GLOBAL CAL ON
	Use the arrow keys to turn Global Calibration ON
	for Global Calibration or OFF for Local
	Calibration.

5.3 CALIBRATION PROCEDURE

5.3.1 CONTROLLER SET-UP

Use the CALIB menu to initiate the calibration session at the controller.

Step	Activity			Display
1	Select CALIBRATION activity	PRESS ENTER TO
		<CHANGE CALIB>
	From normal operate mode, press MODE and
	ENTER to access the calibration activity.. (If a
	user code has been set in the system it must be
	input to access the CALIB/CHANGE activity.
	See Section 8.3.3).
	Successive Displays.		CALIB/CHANGE
				SELECTED
	Successive Displays	READ INSTRUCTION
			MANUAL FIRST
	Select Gas Type	ENTER TO CALIB
			COMB 50% LEL
	If the gas type is not correct press the ARROW
	until the correct gas type and concentration is
	displayed. Use CHANGE CALIB menu selection to
	change span gas concentration. (See Section: 5.2 )
3A	Initiate Calibration (Global)	ENTER TO ZERO
		1	2	3	4	5	6	7	8
	If the display is similar to this example, the
	controller is configured for Global Calibration.
	Continue to Section 5.3.1.1.
3B	Initiate Calibration (Local)	APPLY 0 & 50% LEL
		1	2	3	4	5	6	7	8

If the display is similar to this example, the controller is configured for Local Calibration. Continue to Section 5.3.1.2.

NOTE

In all calibration examples, the responses for

combustible gas are used as an example. Other gases

will provide appropriate similar displays.)

CALIBRATION

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