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Model
DRC-93C
Section III
within the instrument.
Similarly
the 9317C, 9318C, and the 9220-P2,-
the units of the Lower Display are
P3, and -R1 configurations as well
changed by holding down the UNITS
as the older 8219-P2, the 8219-P3
key and pressing the
(Down)
key.
and 8219-R1 cards.
The display
range and resolution for the 9317C
For any input card except the
9215,
is
0 . 0 0 0
to
9999.9
ohms; the 9318C
the DRC-93C will read temperature
is
0.000
to
99999
ohms.
Note that
regardless of whether a curve is
the resistance automatically ranges
to
---- -
.
to
stored within the instrument which
from
--.---
to
---
--
corresponds to the temperature sen-
-----
as the resistance increases in
sor being interrogated. For diodes,
value.
If the input resistance ex-
germanium, carbon glass, and all
ceeds the resistance range for the
other negative temperature depen-
card,
an
overload
condition
is
dence sensors; the default curve is
present and is indicated by OL on
Curve
00
which is the D curve for
the display.
the DT-500-DRC sensors.
tive temperature dependence tempera-
The display ranges and resolutions
ture sensor such as platinum and
for the 9220-P2 (and 8219-P2),
9220-
rhodium-iron, the default curve is
P3 (and
8219-P3)
and 9220-R1 (and
Curve
03
which is the standard
3750
8219-R1) are
0 . 0 0
to
299.99 ohms,
DIN curve for platinum.
This de-
0 . 0
to
2999.9
and
0 . 0 0 0
to
99.999
fault will only occur
if
a curve of
ohms respectively.
Again, if a
opposite temperature dependence has
resistance exceeding full scale is
been inadvertently selected by the
applied to the input,
OL
is
user. In the case of the
9215
card,
temperature units are not allowed
due to the inability of this sensor
3 . 8 . 6 . 2 . 3
Capacitance Units
to hold a calibration upon cycling.
The capacitance mode is allowed for
3 . 8 . 6 . 2
Sensor Units
M o d e
the
9215
Input Card which can be
configured in the -15 or
-150
con-
3.8.6.2.1Voltage
Units
figurations.
The display range is
0 . 0 0 0
to
30.000
or
150.00
nano-
The voltage mode is allowed for the
farads, respectively.
An
input in
9210-3
and
-6
configurations, the
excess of the configured maximum is
9220-3
and
-6
configurations as well
indicated by
OL on the display.
as the older version
8210
and
8211
cards.
In the voltage mode, the
3 . 8 . 7
Display Resolution
display has a resolution of
0 . 1
mil-
livolt with the full scale range de-
The Model DRC-93C allows the user to
pendent on the input card
(2.9999
set his display resolution over the
volts for the
-3
configurations and
range from
1
kelvin to
1
millikelvin
the
8210
card and 6.5535 volts for
(0.1 millikelvin for the 9317C input
the
-6
configurations and the
8211
card).
The temperature is rounded
input card).
The actual Input Card
to the least significant digit of
resolution is
0 . 0 5
millivolts and
the
resolution
range
selected.
0.1
millivolts, respectively.
If a
Since
the
temperature
display
voltage exceeding full scale is ap-
resolution is dependent on both the
plied to the displayed input an
sensor units (voltage, resistance or
overload condition is present and is
capacitance) resolution of the Input
indicated by OL on the display.
Card as well as the sensor sensitiv-
ity, temperature resolution is grea-
3 . 8 . 6 . 2 . 2
Resistance
U n i t s
tly dependent on the sensor.
Refer
to Table 3-1 for a representative
The Resistance mode is allowed for
summary
of
"system"
resolution,
For a posi-
indicated on the display.
COPYRIGHT
3/88
3
-7
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