Omega Vehicle Security DP97 - Manual (Page 18)

Stored values can be viewed at any time as follows:
º From Main Menu, click CHANNEL to select channels A OR B
º Click READ
Stored values can be changed at any time by repeating input procedure. Stored
Values can be cleared from the DP97 at any time as follows:
º From Main Menu, click CHANNEL A <-> B
º Click DISABLE
º Click PRINT in load/save/print menu to print out corrections. To exit programme
and return to DOS, click EXIT on Main Menu.
Note: Although the DP97 stores only one set of corrections for each channel, the
number saved in the software is limited only by available diskette space. Data for many
probes can thus be stored.
When using corrections the DP97 channel annunciation lights (A or B) will occult at 4
second intervals according to the channel selected. In A-B mode channel A and/or B
annunciation lights occult at 8 second intervals.
It is important to note that the DP97 will revert to its standard resistance versus
temperature values for Pt100 sensors and the channel annunciation light will illuminate
normally, ie.the instrument interpolates only and will not extrapolate to extend
corrections outside the range entered.
When calibrating probes alone, prior to programming corrections into the DP97, we
recommend calibrating at a point slightly higher and a point slightly lower (e.g. by 5°C)
than the maximum and minimum temperatures expected for the probe in use. This
ensures corrections are always applied during normal operation. We recommend a
minimum of three correction values are programmed. The DP97 corrects only in
temperature (°C, °F, K). The Ohms value is not affected. Therefore, when measuring in
Ohms in corrected mode channel annunciation lights will not occult.
SPECIFICATIONS
All values are valid for a nominal 110v/240v 50Hz supply and 20°C ambient temperature
(±2°C).
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