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Preferred Instruments

Preferred Instruments manufactures microprocessor based controllers, instruments, and electric actuators for combustion and process applications. Preferred Instruments also manufactures oil tank gauging and leak detection equipment. A major component of the Instrument group sales is from control systems integration and personal computer based Supervisory Control and Data Acquisition systems. Preferred Utilities' industrial factory is located in Danbury, CT

Quanta Flame Series 5002-01 Self Checking UV Scanner

The Quanta-Flame Series 5002-01 Series Ultraviolet Self Checking Scanners are intended for monitoring all gas, oil and coal-fired burners.

Application

The 5002-01 UV self-checking scanner is ideal for natural gas, landfill gas, refinery gas, and light oil fired burners. It interfaces with Preferred, Honeywell, Fireye, Siemens, Eclipse, and PCI flame safeguard microprocessors. The -C versions output a contact closure and a 4-20 mA signal to interface with PLC or DCS-based flame safeguard systems.

 

Overview

The Quanta-Flame Series 5002 is intended for monitoring all gas, oil and coal-fired burners.  The control is the basis for industrial or commercial burner management systems using microprocessors, PLC or relay-based hardware. All essential circuits are supervised.

A Flame Status LED and Flame Relay LED provide useful diagnostic information on the front of the scanner.

Flame Status LED: The Flame Status LED (FSL) is a dual color LED that acts as a multi-functional indicator. When a flame is detected the FSL will illuminate with a red color. This light will vary in intensity proportional to the level of flame signal (flame strength) detected.  Every 10 seconds the self-checking mechanism will interrupt the light coming from the flame. This is done to verify that the UV sensing element is still functioning properly. When this check is being performed the FSL will momentarily turn to a yellow color (when flame present) or green color (when flame is not present). Should the UV sensing element fail to function, the scanner will lockout all the outputs to indicate the failure and the FSL will remain green without blinking for one minute. After one minute the control will automatically reset itself. The scanner’s microcomputer will then continue to check the sensing element every ten seconds. Should the sensing tube be in a permanent “runaway “condition then the scanner will immediately lockout again for another period of one minute.

Flame Relay LED: The Flame Relay LED (FRL) is a single color LED. When a flame of sufficient intensity is detected the 5002-01 control will activate the output signal. This output may be any one of the possible output forms described above. While the output is activated the FRL will illuminate. Should the flame signal fall below the minimum threshold, or should one of the internal circuits or sensing elements tests fail, the output will deactivate and the FRL will shut off.

Features

  • Interfaces with Preferred, Fireye, Honeywell, and PCI Flame Safeguard Controllers
  • Detectors and Signal Processor Automatically Checked Every 10 Seconds
  • Internal Microcomputer Controls Internal Functions
  • High Quality Fused Silica Quartz Lens
  • Machined Alloy Housing With Seals
  • Replacement Scanner Can Be Installed Without Disturbing Wiring
  • Status LEDs
  • Output On Indicator

Mechanical

Length Overall: 7” (177.8 mm)

Diameter:  3.25” (82.5 mm)

Housing:  Machined 5052 Aluminum Alloy

Finish: Clear Anodized

Sight Tube Entrance:  1” Pipe Thread

Purge Air Entrance:  3/8” Pipe Thread

Electrical

Supply Voltage: 120 VAC 50/60Hz, 230 VAC 50/60Hz 24 VDC

Required Power:  2 VA

Output Contact Rating: 230 VAC, 1 A

Available Outputs: Relay Contact 0 to 10 VDC, 0 to 5 VDC, 4 to 20 mA Frequency Modulation

4 to 20 mA output (two-wire current loop)

Span Error:  1%

Non-Linearity: 0.1%

Supply Required To The Loop: 12 to 30 VDC

Environmental

Class: NEMA 4

Temperature: (0° F to 140° F).

Optical

Lens Material: Fused Silica

Spectral Sensitivity

Ultraviolet: 180-230 nanometers

Product Certification

Microcomputer controlled UV Scanner (120VAC) Relay & Flame Amplifier Output FM / UL / CSA / CSAUS

UL File Number: E233069

CSA Certification: File No. 204571 –Project Number 1181621 and 1298906 update to add PCI and Eclipse controls. See attached CSA Certificate of Compliance FM Approved Report Number: 3009512 and 3013648 (for use specifically with Eclipse Combustion Inc and Protection Controls Combustion Safeguards)

Applicable Requirements: CSA 0.8-M1986, 199-M89, UL 372, UL1998, FM Class 7610

Specification

Self Checking UV Scanner: Ultraviolet self-checking flame scanner shall be U.L. listed, FM approved, and CSA certified. Scanner housing shall be made of rugged anodized aluminum, have two status LEDs, and connect by means of a military-style quick disconnect fitting.

Physical Desciption: Scanner shall be made of high strength anodized aluminum and mount by means of industry standard 1” NPTF connection and include:

  • 3/8” Purge connection
  • 5 Pin military-style quick disconnect cable fitting

Electrical Characteristics: Scanner shall be powered by 120 VAC, 230 VAC, or 24 VDC input power. A 120/230 VAC relay contact shall prove flame. In addition, a flame intensity signal shall be provided with the following outputs:

  1. 4-20 mA
  2. 0 to 10 VDC
  3. Frequency Modulation

Manufacturer: Self checking ultraviolet scanner shall be Model 5002-01 manufactured by Preferred Instruments of Danbury, CT.