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1.4
Major Assemblies Supplied
The DRC-7/70 series includes as standard equipment, in addition to
the digital thermometer, the following:
A.
Operating and Servicing Manual.
B. Five Pin Plug for Temperature Sensor Cables.
C. Three Pin Plug for Monitor of Sensor Output Voltage.
Model DT-500 series silicon diodes are not supplied as part of the
DRC-7/70 instrument.
1.5
Accessory Equipment and Custom Options Available
The following accessory equipment and custom options are available from
the factory. Items marked with an asterisk
(*)
are of a custom nature, the customer
should discuss these items with a factory representative before ordering.
A. Extra Five Pin and Three Pin Connectors.
B.
19" Rack Mount.
C. DT-500-DRC and DT-500CU-DRC-36 Silicon Temperature Sensitive Diodes
(Uncalibrated). (See data sheets at end of this manual for nominal
operating characteristics and case styles available).
D. DT-500-DRC Silicon Temperature Sensitive Diodes (Calibrated). Standard
laboratory calibration service for correlating diode output voltage
with diode temperature.
ation.
See sensor data sheet for additional inform-
E.
Custom Modification of Sensor Current Supply Value.*
F. Analog of Temperature (10mV/°K is standard).
G.
TTL Compatible Parallel BCD of Temperature (Also Remote Set Point
Input - Standard with BCD output for DRC-7C/70C instruments).
H. Custom Cut PROM of calibrated DT-500 diodes series.
I. Two Position, Five Position and Ten Position Switches for multiple
sensor readout. (Switch is mounted internally in DRC-70 instruments
(See Table 3.1)
instruments
.
)
Switch is mounted in an external box for DRC-7C/70C
1.6
Ordering of Replacement or Additional Sensors
Two different sensor configurations are available for use with the
Model DRC-7/70 series instruments. These are the DT-500-DRC and the DT-500-CU-
DRC-36 sensors. Their description is included in the cryogenic temperature
sensing elements brochure which is included in the back
of
this manual (see
reference numbers 8 and
14 for dimensions of these sensors).
Three curves presently exist which can be used with the DRC series
instruments. The correct curve must be specified so that your instrument
will have its stated accuracy.
following ways
:
The proper curve may be determined in one of the
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