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Model
DRC-91C/93C
9220
Input
Card
9 2 2 0
U S E R C O N F I G U R A B L E I N P U T C A R D O P T I O N
9 2 2 0 . 1
INTRODUCTION
Table
9220-1.
9220
Configurable
This section contains information
pertaining to the Model
9220
Diode
and
Platinum
User
Configurable
Input
Card.
Included
is
a
description,
specifications,
installation,
operation
and
maintenance information.
Input Card
9220.2
DESCRIPTION
The Model
9220
Diode and Platinum
Input Card
is
designed
to
be
installed in a DRC-91C or DRC-93C
to convert either the Input A or
Input B (or both with two options)
to
accommodate
either
diode
or
positive
temperature
coefficient
sensors
such
as
platinum
or
rhodium-iron.
The
9220-3
configuration
is
e q u i v a l e n t
t o
t h e
9210-3
configuration
described
earlier.
The
9220-6
configuration
is
e q u i v a l e n t
t o
t h e
9210-6
configuration.
The 9220-P2 converts either InputA
or B (or both with two options) to
accommodate
100
ohm platinum RTD's
which
conform
to
DIN
43760
tolerances
+
0.1K,
have
an
interchangeability of 0.1% at
0
C
and a temperature coefficient of
0.00385/°C from
0
to
100
C.
This
card may also be configured as a
9220-P3
(1000 o h m
platinum)
or
9220-R1
(rhodium-iron) input card.
9220.3
SPECIFICATIONS
Specifications for the Model
9220
User Configurable Input Card are
given
i n
Table
9220-1
of
this
manual.
The card can be configured
as a
9220-3
or
9220-6
diode card, a
9220-P2 or 9220-P3 platinum card or
a 9220-R1 rhodium-iron input card.
COPYRIGHT
12/87 LSCI
9220-3:
See
9210-3
specifications.
9220-6:
See
9210-6
specifications.
Sensor
(ordered
separately):
Platinum RTD sensor.
PT-100
series or any other
100 o h m
or
1000
o h m platinum sensor.
27
ohm rhodium-IRON sensor,
See Lake Shore Sensor brochures.
Temperature
Range:
Dependent on
Sensor.
See Sensor brochure.
RTD
Sensor Power Dissipation:
Depends on Sensor Resistance.
Dissipation is the product of
sensor excitation current squared
and the Sensor resistance.
9220-P2:
100
ohm platinum
Current Excitation:
lmA(±0.005%)
Resistance
Range:
0.00-299.99.
Resolution:
0.005
ohms
Display Resolution:
5
digits;
Displays
0.00
to
299.99
ohms.
9220-P3: 1000
o h m platinum
Current Excitation:
0. 1mA(±0 .005%)
Resistance
Range: 0 . 0
to
2999.9
Resolution:
0.05
ohm
Display Resolution:
5
digits.
Displays
0.0
to
2999.9
ohms.*
9220-R1: 27
o h m platinum
Current Excitation:
3 mA(±0. 005%)
Resistance
Range: 0.000
to 99.9992
Resolution:
0.003
ohm
Accuracy:
0.003
o h m
Display Resolution:
5
digits.
Displays
0.000
to
99.999
ohms.
Accuracy:
0.01
ohms
Accuracy:
0.1
ohm
*Equivalent temperature accuracy
is a function of sensor type,
.sensitivity and Precision Option.
9220-1
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