Measurement Specialties 9116 user manual Diagnostic Port Hookup, Pressure Connections

Pressure Systems, Inc. Model 9116 User’s Manual

2.3.5Diagnostic Port Hookup

Each NetScanner™ System module contains a Diagnostic Port that supports diagnostic and operational functions. The Diagnostic Port has only a simple RS-232 asynchronous serial interface. The connections are made via certain pins of its common circular connector. Cable connection should be made according to Table 2.1.

Table 2.1

Diagnostic Port Wiring

NetScanner™ System

Diagnostic Port Connector

GND

Tx

Rx

The RS-232 interface is capable of supporting simple asynchronous communications with fixed parameters of 9600 baud, no parity, 8 data bits, and 1 stop bit. Only communication cable lengths less than 30 feet (10 m) are recommended.

The Model 9116 uses the diagnostic interface for optional configuration and diagnostic purposes only. The diagnostic port functions on the Model 9116 is generally not required by the end user. Standard cables for this module do not include diagnostic port connections.

2.3.6Pressure Connections

All pneumatic connections to Model 9116 are found on the instrument top panel. The function of each input port is clearly engraved or printed next to each input. Connections are through bulge tubing, compression fittings, or special user-supplied fittings on the tubing plate. All pneumatic inputs to the Model 9116 should contain only dry, non-corrosive gas.

All Model 9116 standard Intelligent Pressure Scanners are supplied with the purge/leak check calibration manifold. Through software commands, this valve may be placed in one of four positions; RUN, CAL, PURGE, or LEAK-CHARGE. Pneumatic input requirements for these four operating positions are described in the following sections.

Page 13 www.PressureSystems.com