Oldham Simtronics DF-TV7-XTA0-0XH-0N 3IR DF-TV7, Standard range, HART protocol

What is the Oldham Simtronics DF-TV7-XTA0-0XH-0N?

The Oldham Simtronics DF-TV7-XTA0-0XH-0N is: 3IR DF-TV7, Standard range, HART protocol. The MultiFlame DF-TV7 is an optical flame detector for hydrocarbon fires, designed around minimising false alarms and fitted with an intelligent optical self-test. The family has two detection technologies: the DF-TV7-T reads three separate infrared wavelengths and detects hydrocarbon fires up to 80 metres away, and the DF-TV7-V combines ultraviolet with double infrared for higher immunity to false alarms and a shorter response time, detecting hydrocarbon fires up to 45 metres away. The detector connects directly to conventional fire controllers or to a PLC, and a DF-RV7 variant exists for the addressable SYNTEL network. Configuration, including time delay, sensitivity and output behaviour, is done with the TLU600 hazardous area remote terminal or over HART with a TLH710 or TLH720.

What are the specifications of the MultiFlame DF-TV7 Flame Detectors?

• Detection technologies: triple infrared (DF-TV7-T) and ultraviolet with double infrared (DF-TV7-V)
• Detection distance: up to 80 m for the triple IR version, up to 45 m for the UV/2IR version
• Field of view up to 120 degrees, per the vendor product overview
• Outputs: 4-20 mA, relays, HART as an option, and LonWorks for the SYNTEL system
• Power supply 24 V DC (18 to 35 V DC on DF-T#7 versions, 18 to 30 V DC on DF-R#7)
• Typical power consumption 1.4 W for IR3 and 1.5 W for UV2IR, 5 W maximum
• Operating and storage temperature: -40 C to +65 C
• Humidity 95% RH non condensing, protection rating IP66
• Explosion proof housing in 316 L stainless steel, weight 5.1 kg
• Performance certified to EN 54-10/A1, RFI and EMI to EN 50130-4, SIL 2 capable

What should you check before ordering?

The two technologies in this family are not interchangeable and the difference is measurable rather than a matter of preference: the triple IR version reaches 80 metres and is aimed at smoky hydrocarbon fires that are hard to see optically, while the UV/2IR version trades reach for speed and false alarm immunity and reaches 45 metres. Published MTBF also separates them, at 172,000 hours for the DF-TV7-T against 115,000 hours for the DF-TV7-V. One exception is worth catching at specification time: the manual states that reference DF-V7-XT0-0-0-0---1 is neither EN 54-10 compliant nor SIL compliant, so a site with an EN 54-10 requirement cannot take that particular reference.

How do the part numbers differ?

Part numbers separate the detection technology (XT for triple infrared, XV for ultraviolet with double infrared), the range (A standard, B long), the output (C configurable, H HART, L LON for the SYNTEL network), and the DF-RV7 prefix marks the addressable SYNTEL variant. Published detection distances are test figures: sensitivity in the field also depends on fuel type, fire size, atmospheric conditions such as wind, rain and fog, and the angle between the fire and the detector.

Where is it used?

Typical service: Refineries and chemical plants; Drilling and production platforms, and FPSO vessels; Fuel loading facilities and compressor stations; LNG and LPG processing and storage; Gas turbines and aircraft hangars; Stadia and gymnasia.

How do I order or get a quote?

PE Energy supplies the Oldham Simtronics DF-TV7-XTA0-0XH-0N on a quote basis: send the part number with your application details and we return pricing and lead time. Fixed gas and flame detection is quoted rather than listed because most references ship configured for target gas, range, approval scope and cable entry, and those choices are fixed at the part number. This part belongs to the same product line as the MultiFlame DF-TV7 optical flame detector line already in our catalogue.