PART THREE - OPERATION
SECTION 1 - OPERATING CONTROLS
Model 692P
Rev. 9-898
-22-
1.2 Slide Switches
7.
BEGIN CAL
key (Figure 3-1)
n
With display in measurement mode:
A. Displays stored value for LO or HI CAL VALUE
setup variable used in “two-key” calibration (two-
point or table method). Each key press alternately
displays both stored values. To return display to
normal indication, pressed
EXAM/CANCEL
key.
B. Initiates calibration of a point used in “two-key”
calibration (two-point or table method). Specific
buffer values should be stored in memory before
using this key to initiate calibration (see Part
Three, Section 6.4 or 6.5 for details).
n
With display in “examination” mode:
This key has no effect.
8.
END CAL/HOLD
recessed button (Figure 3-1)
n
With display in measurement mode:
Activates output hold feature when pressed together
with
OUTPUT
key (item 9).
n
With display in “examination” mode:
A. Completes calibration of a point used in “two-key”
two-point or “two-key” table method.
B. Activates output hold feature when pressed to-
gether with
OUTPUT
key (item 9).
9.
OUTPUT
key (Figure 3-1)
With display in measurement or “examination” mode:
A. Activates output hold feature when pressed together
with recessed
END CAL/HOLD
button.
B. Cancels output hold feature when pressed together
with
ENTER/CANCEL HOLD
key.
10.
SWITCH 2
(Figure 3-2)
Selects the state that the instrument will default to during
an out-of-range condition due to a defective pH sensor
or shorted sensor cable. The operator presets a low or
high out-of-range default state. In case of failure,
Содержание 692P
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