Omega DPS3200, DPS3100 manual Display Modes, Elapsed Time Mode, Scan Mode, Mode Function Performed

setpoint, difference between any two selected channels or just run as a timer. In the timer mode the unit keeps track of process run time with crystal controlled accuracy. Elapsed Time display format is 'HH.MM.SS' for hours, minutes, and seconds. The desired display mode is selected during SYS SETUP ---- (for details refer to the SYS CONFIGURATION

section).

Table 2. Display Modes

	MODE	FUNCTION PERFORMED
1)	Elapsed time	Unit displays elapsed time since power up or last time reset.
2) Scan		All active channels are automatically scanned.
		Channels that are turned off are not scanned or displayed.
3)	High Channel	The unit will compare all active channels against each other and
		display the one that has the highest process reading.
4)	Low Channel	The unit will compare all active channels against each other and
		display the one that has the lowest process reading.
5)	Deviation	The unit scans all active channels and displays the deviation of
		process variable from a pre-programmed setpoint.
6)	Channel Differential	The unit continuously displays the difference of process between
		any two selected channels.

The following paragraphs give a detailed description and operation of various modes.

Elapsed Time Mode

DPS3000 Series can be programmed to run as timer. In this mode the unit will indicate elapsed time in hours, minutes and seconds. The display format is 'HH.MM.SS'. This mode is selected during SYS Setup by opting for 'ELPSD t'. The elapsed time is the time passed since the unit was turned on or when the time was last reset. To reset the time, first push the TIME key and while keeping it pressed, push the RESET key. The display will show 'rESEt' and on release of the RESET key, the display will reset to '00.00.00' and begin timing.

The elapsed time can also be momentarily displayed while the unit is operating in any other display mode. This is done by pushing the TIME key once. The

unit will first display the word 'ELPSd t' followed by the elapsed time. This will stay in the display window for a brief period and then the unit will revert to the normal display mode.

Scan Mode

When setup for scan mode, individual channels are displayed for a programmed period of time. At the end of that time period the, display automatically switches to the next channel. For ease of reading, the display first shows the channel number (Format: 'CHANEL 1') and then the process variable along with the programmed three digit engineering units e.g. 23.45 PSI.

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