Product Description; General; Product Configuration; Modes Of Operation - SMC Networks IT Series Instruction Manual

1.1 GENERAL

The Model 5100-99-IT Transmitter is a member of the Information Technology
transmitters.
transmitters offer a broad array of features, including:
IT
•
Integral alphanumeric LED display
•
4-20 mA output
®
•
Modbus RTU interface
•
SMC Sentry interface
•
316 Stainless steel enclosure option
•
Auxiliary integral relay option
•
Remote display option
•
Low maintenance and operation costs
The 5100-99-IT is designed and approved for installation and operation in hazardous locations.
1.2

PRODUCT CONFIGURATION

Various transmitter configuration options are available.
configured prior to shipme
described in this manual

1.3 MODES OF OPERATION

1.3.1

SENTRY INTERFACE

IT gas sensor transmitter can be connected to on Sierra Monitor Sentry Model 5000 controllers. When it is
connected to a Sentry system the IT transmitter must have a unique address which can be established by
setting an address between 1 and 8 on the Transmitter Address Switch accessible from the cover plate as
illustrated in Figur
Se ntry controller.
When the transmitter is operated in conjunction with a Sentry controller, the alarms outputs in the
transmitter can both be set to "Sentry", allowing the Sentry controller to manage alarm acknowledge and
reset rather than the transmitter. The alarm relay outputs are triggered by the
the transmitter and can be independent of the settings in the Sentry controller.
The Sentry configuration allows daisy chain installation using the Sentry multiplex capability, thus reducing
costs by avoiding the requirement for wiring junction boxes. The connector card has two sets of
co nnections, allowing for a continuous run to the next transmitter.
®
Registered trademark of Schneider Electric

1. PRODUCT DESCRIPTION

nt. Options which can be re-configured by the installer or field technician are fully
.
e 3-1. Figure 3-6 in this manual provides the wiring terminations for connections to the
Model 5100-99-IT 4-20 mA Transmitter
Where applicable, these options are factory
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family of gas sensor
"IT"
alarm values established in