Pyromation Dual J-T-E-K - Manual (Page 21)

19
DIFFERENTIAL READINGS (T1-T2)
The differential function is used to compare two
different measurements and display the difference
between them. Differential measurements can be
made using either one probe or two probes.
Single Probe Measurements
For single probe measurements, one measurement
is stored as the reference measurement, then each
following measurement is compared to the refer-
ence. The reference measurement is viewed on
the lower left display, the differential value is shown
in the lower right display and the main display shows
the present T1 or T2 reading.
1. Place probe at first measurement point.
2. Press the T1/T2 key to store this reference tem-
perature. The
∆
T and M= annunciators will be
on and the reference temperature will be dis-
played on the lower left display. The
∆
T indi-
cates that the differential mode is selected and
the M= indicates that a reference temperature
has been stored. Any time after this that the T1/
T2 key is pressed, the M= value will be updated
to the present value shown in the main display.
3. Place the probe at the second measurement
point. The main display will immediately show
the new measured temperature and the lower
right display will immediately show the difference
between the reference temperature and the
present temperature point.