MODEL P222 SIGNAL PROCESSOR and S256B UV VIEWING HEAD

GENERAL DESCRIPTION:

The IRIS Watchdog III UV Flare Stack Pilot Monitor is an effective replacement or supplement to thermocouples or optical IR systems. It can be connected to an existing ignition system making the replacement of burned out thermocouples effortless.
This can be done without plant shut down or flare interruption, saving you valuable time and money.

The IRIS Watchdog electro-optically monitors pilot and flare stack activity using an ultraviolet sensor. It provides continuous burner surveillance indicating the presence or absence of a flame at the flame tip.
The Ultraviolet sensor is not affected by sunlight and therefore provides reliable flame sensing under a wide range of atmospheric conditions.

S256B VIEWING HEAD
The model S256B viewing head is ground mounted up to 1000 feet from the flare stack tip. The rugged, light weight, all weather aluminum mounting yoke is designed for easy and accurate adjustment of the viewing head. Both vertical and horizontal aiming can be performed, and securely locked once achieved. Signal strength can be monitored and adjusted at the viewing head location by using the display on the rear of the viewing head. The electronics are designed with no moving parts to ensure continuous and maintenance-free operation.
P222 SIGNAL PROCESSOR
	Based upon our flagship flame monitoring system, the IRIS model P522, the model P222 signal processor uses advanced microprocessor technology for detection and monitoring of Flare Stacks. All setup functions and status displays are available from the front panel. The P222 can be powered from 85 to 264 VAC line voltage, or from a DC supply of 22 to 26VDC. Two independent relays are provided, one giving an early response (adjustable between one and sixty seconds) to a "flame loss" and the other giving a time-delayed response, (adjustable between the early response time and 60 minutes), for a "flame-out" alarm. The P222 is also compatible with FlameTools software for remote setup and monitoring from a desktop computer system, or a handheld PDA.

SETUP AND OPERATION DEMO

Click to View an Online Demo
View an on-line demo of the operation of the P531/P532 in Streaming Flash format. This Demo runs in a separate window in your browser.
You may need to install the Flash plug-in if it is not already installed.

Click to Download the PowerPoint demo
This is a high resolution full screen demo that runs on your PC. It is suitable for projection or large screen monitors. The file size is 8Mb.
Choose SAVE to save the file to your hard drive. You must have the PowerPoint 2003 viewer installed on your PC to view this demo.

Click to download PowerPoint demo with voice (16Mb)

Download PowerPoint Viewer 2003

MAIN FEATURES: IRIS WATCHDOG


		Not affected by the sun
		Lightweight and low power consumption
		Monitors pilot and indicates flaring
		No moving parts ensures reliability
		Easy to install with no plant shutdown
		Atmosphere penetrating UV sensor
		Ground Mounted for ease of installation
		1000 ft line of sight Range
		Continuous Surveillance
		Both 0 to 20 mA and 4-20 mA Outputs available.
		Built Rugged to Last

APPLICATIONS:

Primarily used for monitoring flare stacks in the petrochemical industry, or other applications
where distance and/or accessibility is a factor.

A typical application for the IRIS Watchdog flare stack monitor is shown above.

The Viewing head can be placed at a distance of up to 1,000 ft from the flare stack being monitored, as shown in the diagram on the left.

APPROVALS:

CSA Special Acceptance

SPECIFICATIONS: IRIS WATCHDOG

ELECTRICAL	AC Powered	85 - 264VAC, 47 - 440Hz, 0.3A Max (with viewing head)
	DC Powered	22 - 26VDC, 300 mA (with viewing head)
	DC Power for backup	22 - 24VDC, 300 mA (with viewing head)

ENVIRONMENTAL	Signal Processor Ambient Temperature:	0° C to 60° C ( 32° F to 140° F)
ENVIRONMENTAL	Viewing Head Ambient Temperature:	-40° C to 80° C (-40° F to to 140° F)
	Viewing Head Housing	NEMA type 4X

CABLE	Signal Processor to Viewing Head	4 conductor, #16 AWG or #18 AWG, one wire shielded with braided shield for flame signal. IRIS type C328 or C330 cable recommended

OUTPUTS	Relay R1 (Early indication)	2 sets Form C contacts Contact Rating: 5A at 30VDC or 250VAC
	Relay R2 (Delayed Indication)	1 set Form C contacts Contact Rating: 5A at 30VDC or 250VAC
	Analog Flame Signal	0 to 19.8 mA output for remote meters, or 4 to 19.8 mA output for DCS, etc. 360 Ohm Max resistance
	Power to Viewing Head	+26 VDC, Self Resetting fused, 0.25A (from Processor)

INPUTS	Manual Clear	Connect to GND via a remote switch to clear
INPUTS	Channel Select	Connect 24VDC to select channel B

SERIAL COMMUNICATION	RS-422/485 (Differential)	4800 ,9600, 19200 or 38400 baud (User selected)

VIEWING HEAD	Distance from Pilot	Up to 1000 ft. Line of Sight
VIEWING HEAD	Field of view	40 ft. diameter target at 1000 ft.

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IRIS Signal Processors, Flame Monitors, Viewing Heads and Flame Detectors are made in the USA