Gas Detector Controllers System For Marine

The gas detection controller is the main component of a fixed detection system. Connected to several detectors, it ensures continuous and permanent monitoring of areas presenting gas leak related risks.

It is worth noting that the ATEX EN 50271 certifications and metrological performance according to EN60079-29-1 of your detection installation ensures you a safe operation.

The unit first processes the gas measurements sent by the detectors. In the event of an abnormal threshold, it generates actions to warn you of the dangers associated with an excessive concentration of gas. These actions are previously defined by the user; they may be sound and/or light signalling, servo-controls or alarm reports by remote transmission.

Discover our single and multi-channel detection units online, as well as a complete selection of visual and audible alarms. Are you interested in a particular range? Click on the detection unit of your choice to discover its technical characteristics. Our team can also support you at any time in your detection system installation project.

7200+ & 7400+ Controllers

• Centralized Graphic Display and Alarm Controller.
• Seamless Upgrade for Current Loop and Direct Cat Bead Detectors.
• MODBUS Interfacing and Output Relay Options for Any Environment.
• Compatibility with Teledyne’s Full Array of Gas Detection Transmitters and Detectors.
• Hazardous Location Approval for Class I, Division 2 Applications (certain units only).

Overview

The 7200 Plus and 7400 Plus Controllers are designed to provide simultaneous display and alarm functions for up to four monitored variables.
A graphic LCD displays monitored data as bar graphs and engineering units. Three adjustable alarm levels are provided per channel. Relay outputs allow control of beacons, horns and other alarm events. The controllers are easy to configure and user friendly. Measurement ranges in engineering units, adjustable alarm set-points, optional serial interfaces and many other features offer flexibility to meet most demanding applications. Some of the controllers utilize NEMA 4X rated enclosures and are CSA certified for combustible detection and hazardous locations. An optional RS-485 MODBUS® slave port allows up to 128 controllers to be multidropped onto a single data highway for interrogation by another MODBUS master. Other 7200 Plus options include six 5 amp SPDT discrete alarm relays per channel, 4 to 20 mA outputs and light stacks. Nonvolatile memory retains all configuration data indefinitely.

Common Markets Include:
• Petrochemical Oil and Gas
• Food and Beverage
• Pulp and Paper
• Water and Wastewater Treatment.

FEATURES

• Centralized Graphic Display and Alarm Controller
• Seamless Upgrade for Current Loop and Direct Cat Bead Detectors
• MODBUS Interfacing and Output Relay Options for Any Environment
• Compatibility with Teledyne’s Full Array of Gas Detection Transmitters and Detectors
• Hazardous Location Approval for Class I, Division 2 Applications (certain units only).

SYSTEM SPECIFICATIONS

Inputs
Sensor input PCBs are available for combustible sensor and 4 to 20 mA. All versions may be configured for 4 to 20 mA inputs.

Analog Outputs (Optional)
10 bit 4 to 20 mA output. Max load 800 ohms with nominal 24 VDC power supply

Common Alarm Relays (Standard)
Two 5 amp 30 VDC or 250 VAC resistive Form C

Discrete Alarm (Optional)
Six 5 amp 30 VDC or 250 VAC resistive Form C

Serial Port (Optional)
Master and slave RS-485 port equipped with Tx/Rx LEDs. Protocol = MODBUS RTU. 10-BaseT Ethernet with MODBUS TCP protocol.

Display
128 x 64 pixel graphic LCD with backlight displays bar graphs, 30-minute trends and engineering units. Six discrete LEDs indicate alarm status for three alarms per channel

Temperature
-25°C to 50°C

Humidity
0 to 90% R.H. non-condensing

Power Supply
100 to 240 VAC or 24 VDC are standard primary power supplies. AC power source generates 24 VDC at 8 watts auxiliary power.

Housing Options
NEMA 4X wall mount CSA certified for Class I, Division 2, Groups A, B, C, D.
NEMA 7 explosion-proof wall mount for Division 1 areas
*Note: Adding Auditble Alarm or strobe lights void CSA Approval of Unit.

APPROVALS

CSA C122.2 No. 152 performance requirements. This equipment is suitable for use in Class I, Division 2, Groups A,B,C and D or non-hazardous locations only. Note: CSA has not approved the Controller with any of the following items installed: 100db Piezo Audible Alarm, Dual Light Stack, and Strobe Light(s)

Read more:

• Inert gas system
• Cara kerja sistem inert gas

Source:

• www.teledynegasandflamedetection.com