Walz MINI-PAM - Description of the Mode-Menu Points

CHAPTER 7 THE MODE-MENU
49. GAIN: 2 (SET)
50. MEAS-INT: 8 (SET)
51. MARK: A (SET)
7.2 Description of the Mode-menu points
The following list briefly describes the items contained in the
MODE-menu, some of which are outlined in more detail in section
12.3 (Assessment of photosynthesis yield with the MINI-PAM).
Standard settings are shown.
Standard menu-position for display of the
data measured by last saturating light pulse
triggered by START. The 4 central parameters F, M, Y and E, the
present fluorescence signal F: (with blinking
*
), temperature (°C)
and and ambient PAR (L) are displayed.
1: 445F 1739M 19.9C
F: 448 745Y 6.2E 20L
Command for determination of signal in
absence of sample (background signal), the
value of which is displayed and automatically subtracted, such that
signal becomes zero without sample. This offset value remains
effective for all following measurements until being deliberately
changed. It has to be newly determined whenever 50: MEASURING
LIGHT INTENSITY or 49: GAIN are modified. If this is not done
there is a warning ?NEW OFFSET? when YIELD is determined by
START. The warning will stop when a new offset is determined via
menu point 2 or the given offset is confirmed in menu position 1 via
SET.
2: AUTO-ZERO: 20(SET)
F: 448 745Y 6.2E 20L
On/off switch of measuring light. Under
standard conditions the measuring light is
on. When switched off, a negative signal indicates the AUTO-ZERO
value (see menu point 2). The switch can also be operated via
MODE + ON without entering the MODE-menu.
3:MEAS.LIGHT: ON (SET)
F: 448 745Y 6.2E 20L
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