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M o d e l DRC-93C
Section
III
3 . 7 . 4
Black Legend Keys
3 .
Units (K, C, F, V,
N)
When one of the Black Legend keys
5 .
An
indicator in the upper left
(GAIN, RATE, RESET, SETPOINT,
MANUAL
hand corner of the sign to
HEATER, TIME, or POINT#) is pressed
signal FILTER ON.
it is not to be held down released
immediately.
A Control arrow
(CTRL)
to the far
left of the TEMPERATURE block points
The quantity described by the key
to the Controlling Sensor.
will begin to flash indicating that
it can be changed.
The Setpoint Display is discussed in
Section
3.10
with the CONTROL Block.
The keypad
(0-9
and
.)
is then used
to enter the new value.
Negative
3 . 8 . 1
Sample
and
Control
Sensor
quantities are preceded by the minus
key.
The ENTER key completes
the operation and inserts the new
The choice of which input is assoc-
value.
The CLEAR key will cancel
iated with the Control Sensor or the
the entry and return the instrument
Sample Sensor is determined by the
to normal operation.
CONTROL key of the keypad and indi-
cated by the CTRL annunciator arrow.
When the
(up) and
(down) keys
If the CTRL Arrow points up then the
are used after selecting a Black
Upper Display with its associated
Legend key the
key will increment
SENSOR Number and UNITS are the
and the
key decrement the quanti-
Control sensor.
The Lower Display
ty. Detailed operation of these keys
is then the Sample Sensor with its
will be discussed in the sections
associated
SENSOR
number and UNITS.
dealing with
the
specific Black
Similarly, if the
CTRL
Arrow points
Legend functions.
down then the Lower Display and its
associated SENSOR and UNITS is the
Control Sensor and the Upper Display
SUMMARY: THE
KEYPAD
(0-9
AND
.)
ARE,
is the Sample Sensor.
ONLY
THE NUMBERS
0-9
AND
DECIMAL
POINT WHEN
A
DISPLAY
(SETPOINT,
3 . 8 . 2
U p p e r
and
Lower SENSOR Number
GAIN,
RATE,
RESET, OR MANUAL HEATER
POWER)
IS
FLASHING
OTHERWISE THE
The selection of
A
or B inputs for
K E Y S WILL
CARRY OUT
THE FUNCTION
the Upper Display is changed
by
DESCRIBED
BY
THE BLUE LEGEND.
THE
holding in the SENSOR key and pres-
ENTER AND CLEAR
KEY
ARE
ONLY EFFEC-
sing the
(Up) key.
TIVE WHEN
A
QUANTITY IS
FLASHING.
THE
KEY
AND
KEY
ARE
USED IN
The selection of A or B inputs for
CONJUNCTION
WITH
BLUE LEGEND KEYS
To
the Lower Display is changed by
CHANGE
THE
QUANTITY
BEING REQUESTED.
holding in the SENSOR key and pres-
sing the
(Down) Key.
3 . 8 TEMPERATURE
BLOCK
The
A
input is distinguished by a
uppercase letter
A
in the Sensor
The
TEMPERATURE
block consists of
window and the B input by a lower-
the Upper Display, Setpoint Display
case
b
in the Sensor window.
and the Lower Display.
The Upper
and Lower Displays each have
While the SENSOR key is held down,
1 .
SENSOR Number
the Upper and Lower Displays will
2.
(SCAN) indicator in the
show the card types being used
by
upper left hand corner of the
the displayed sensor.
The GAIN,
SENSOR Number
RATE, and RESET windows are blank.
4 .
A
5
digit display with sign
Inputs
COPYRIGHT
3/88
3-5
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