Pressure Systems 9022 Manuel d'utilisateur télécharger pdf (Page 31)

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Measurement Specialties Inc. NetScanner System (9016, 9021, & 9022) User’s Manual

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2.3.7 9021 and 9022 Transducer Installation

Models 9021 and 9022 interface to twelve external transducers or signal sources. Although this

module is intended primarily for use with Model 9400, 9401, and 9402 All-Media Transducers,

it may also be used with many third party transducers with suitable analog outputs. When using

the 9022 with third party pressure sensors that lack a temperature output signal, you must short

the temperature signal input (pin D of the circular connector) to its reference line (pin C of the

circular connector). This may be done directly on the connector. Transducers should be installed

to the 9021/9022 as described on the following pages.

The 12 volt transducer supply line is fuse-protected. The 9021 modules have a green LED at the

bottom center of the case, indicating the presence of 12 volt power to the external transducers.

The indicator LED is not present on the 9022.

2.3.7.1 Installation of 9400, 9401 and 9402 Transducers

9400, 9401, and 9402 transducer cables are typically ordered from MEAS pre-wired for use with

the 9021/9022. If it is necessary to fabricate interface cables to interface the Series 9400

transducer to the 9021, the diagram in Figure 2.4 should be used. The 9021 makes use of 9-pin

D-shell mating connectors. The 9022 uses circular (military) style connectors. See Figure 2.4a.

Additional wiring diagrams can be found in Appendix C.

Warning: Always ensure that the Model 9021/9022 power is OFF before

connecting or disconnecting external transducers.

Warning: Improper electrical connections between the Model 9021/9022 and

external transducers can result in permanent damage to the scanner and the

external transducer.

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Pressure Systems 9022 Manuel d'utilisateur Page 31