Omega DPS3100 series, User Manual

Page 6

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.