Detcon FP-524D-HRT Manual de usuario descargar pdf (Pagina 7)

Model FP-524D-HRT

FP-524D-HRT Instruction Manual Rev. 0.1 Page 3 of 48

1.2 Modular Mechanical Design

The Model FP-524D-HRT Sensor Assembly is completely modular and is made up of four parts:

1) FP-524D with HRT Bridge Plug-in Transmitter

2) Field Replaceable Combustible Gas Sensor

3) Connector PCB

4) Splash Guard.

FP-524D-HRT Plug-in Transmitter

The Plug-in Transmitter Module is a microprocessor-based package that plugs into the connector board located

in the explosion proof junction box. Circuit functions include extensive I/O circuit protection, sensor pre-

amplifier, sensor temperature control, on-board power supplies, microprocessor, LED display, magnetic

programming switches, and a linear 4-20mA DC output with HART. Magnetic program switches located on

either side of the LED Display are activated via a hand-held magnetic programming tool, thus allowing non-

intrusive operator interface with the Transmitter Module. Calibration can be accomplished without

declassifying the area. Electrical classifications are Class I, Division 1, Groups B C D.

Figure 5 Circuit Functional Block Diagram

PGM 1

PGM 2

MODEL FP-524D-HRTHOUSTON, TEXAS

FLT 1 2 CAL

MicroSafe LEL Gas Sensor

ALM ALM

Figure 6 FP-524D-HRT Transmitter Module

Field Replaceable Sensor

The Detcon combustible gas sensor is a field proven, replaceable type sensor. It can be accessed and replaced

in the field by unthreading the lower half of the sensor housing. The cell can then be unplugged and replaced.

The Detcon combustible gas sensor has an infinite shelf life and is supported by a 2 year warranty.

I/O

Circuit

Protection

20mA

Displa

Micro-

Processor

Temperature

Control

Pre

Amp

Analog 4-20mA Out

RT communication

Power In

Power Supply

Plug-In

Sensor

Element

1 2 3 4 5 6 7 8 9 10 11 12 ... 51 52

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Detcon FP-524D-HRT Manual de usuario Pagina 7

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