Walz MINI-PAM-II, Manual, Page: 55 / 130

Touchscreen Operation Chapter 7
49
7 Touchscreen Operation
Touchscreen operation of the MINI-PAM-II allows saturation
pulse analysis of photosynthesis independent from a computer.
Using the touchscreen, single F
V
/F
M
or Y(II) measurements as
well as more complex experiments like induction and light curves
are feasible. Continuous recording of steady state fluorescence,
however, requires operation of the MINI-PAM-II by WinControl-3
running on an external computer.
+ +
To invoke the calibration win-
dow, start MINI-PAM-II with
finger pressed on touchscreen.
To calibrate, use pointed but
not edged tool like a wooden
toothpick. Touch target point
(
+
) at bottom right corner.
Consecutively, three more tar-
get points have to be touched.
Finally, a message “Press any-
where to continue” indicates
end of calibration.
+
Calibration points
+ +
Fig. 25: Touch Screen Calibration
7.1 Calibration
The MINI-PAM-II can be operated autonomously using its resis-
tive touchscreen. The touchscreen is factory-calibrated to match
its two dimensional response with the LED screen underneath. If
touch operation is imprecise, calibration can be performed as
described in Fig. 25, page 49.