ENMET OMNI-4000 - Manual (Page 17)

OMNI-4000 S/N 6705 and above ENMET Corporation
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1.9.2 Data Available
The device computes, for each channel in use and at a rate of once per second, an average on a period of one minute.
The averaged data is stored in the memory. The following data can be read from the OMNI-4000 serial port:
• A personal computer with the COM4000 Communications software can be used to display the average readings
per minute.
• A serial printer can be used to printout the data relating to the average for each quarter of an hour. Thus, a print-
out shows the average reading over a period of 15 minutes; this new average is calculated by the OMNI-4000
during the printing.
1.9.3 Length of Data Storage
The data stored by the OMNI-4000 are held even if the device is left unused for a long period. The storage duration
is 3 to 5 years and is dependent on the life of the internal lithium battery.
1.9.4 Clearing the Stored Data
To clear the data, touch the ENTER switch; to retain the data, touch the BACKLIGHT switch.
This is performed by means of a request on the display after the printout of the stored data. Displayed alternately are:
Figure 1-13. Display of the Clear Data Request Following Printout
1.10 Printer or Computer Connection
These must be PC compatible and fitted with a serial RS 232C interface. See Figure 1-14. It is configured as follows:
ƒ 9600 bauds
ƒ 8 bits
ƒ Even parity
ƒ 1 Stop bit
ƒ XON/XOFF protocol
ƒ IBM Emulation
Figure 1-14: PC Compatible Serial Printer, Used for Printing the Histograms
To Clear
Memory
Accept: ENTER
Cancel: ¨