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Table 3-4
Model R418-7 14-Channel Enclosures
Model
Ac Voltage
Dc Voltage
R418-7AX
None
28*
R418-7AY
None
12*
R418-7BX
120
28
R418-7CY
120
12
R418-7DX
240
28
R418-7EY
240
12
* External input only
MODELS 4001 and 4005
The 4000 Series Enclosures are designed for airborne, vehicular, or marine service in mod-
erate-to-severe environments. The two enclosures in this series are the Model 4001, which
accommodates fourteen conditioner-amplifiers or frequency-to-voltage converters, and the
Model 4005, which accommodates twenty-two. These systems can be configured to operate
with virtually any transducer from thermocouples to strain gages to RTD’s (resistance tem-
perature detectors). Separate input and output connectors on the enclosures provide access
to each channel. A switched front-panel meter plus an output connector can be used to
monitor any channel in the system.
Features
•
Bipolar calibration and balance adjustment
of bridge-type transducers are provided with
either the Model 428, 418 or Model 352 con-
ditioner-amplifiers. Terminals permit easy in-
stallation of calibration resistors.
•
Per channel plug-in bridge-completion mod-
ules are included in the 4005, and fixed ter-
minals for bridge-completion components
are optional in the 4001.
•
Thermocouple signals can be amplified using
the Model T418 in conjunction with the
Model 683 Universal Thermocouple Adapter
(UTA).
•
A monitor meter plus output signal jacks fa-
cilitate initial setup and observation of any
channel.
•
An output substitution calibrator is included
in the Model 4005.
•
The rugged construction of the 4000 Series
Enclosures together with the virtual immu-
nity to temperature and humidity extremes
Operation
Model 451
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