Owner's manual

Temperature/Pressure Adapter
4
SETTING PRESSURE SENSOR TO 0 PSI
Under certain conditions and over a period of time the pressure sensor may drift
slightly off 0 PSI.
To re-zero the pressure sensor, press and hold
STATUS
while in the Operating Mode until the
display indicates Initial Zero Pressure.
Release the
STATUS
button. The sensor has now been reset to zero. Note
that for this adjustment to maintain the accuracy of the pressure sensor, the
pressure must actually be at 0 PSI when setting the zero point.
RECORDING DATA
One of the most important functions of the Service Logger is to record informa-
tion over a period of time. This function is like a chart recorder except that the
information is stored in memory rather than being printed on paper. The user
can choose to print the information, transfer the information to a computer for
advanced analysis or long term storage, or review the information on the Serv-
ice Logger’s display.
In the case of the OM-60-MOD-TP option, the temperature and pressure will be
recorded. Different sensors will, of course, record different information de-
pending on the function of that sensor. The Service Logger has a memory ca-
pacity to record up to 4000 samples of data. It is the option of the user to record
data to the maximum capacity of the Service Logger or to terminate a recording
when sufficient information has been gathered.
IMPORTANT !
Each new recording will erase any previously recorded information. It is the
responsibility of the user to either print out or store a previous recording
prior to starting a new recording.
The first step in making a recording is to select the proper recording time and
sample rate. If a sampling rate of 15 seconds is being used, then every 15 sec-
onds the temperature and pressure will be measured and stored into digital mem-
ory. No record of information is made between each sample even though the dis-
play will continuously show the environment the OM-60-MOD-TP sensors are ex-
posed to.
For a recording to accurately reflect a series of events, it is up to the user to se-
lect a recording interval that best suits the particular application. In some situa-
tions maximum recording time may be sacrificed so that more frequent sam-
INITIAL
ZERO PRESSURE