The Honeywell model 705 high-temperature sensor detects flammable gases in high-temperature hazardous area locations. Applications include turbine enclosures and drying ovens used in solvent-based printing and coating machines.

The 705 HT incorporates a matched pair of Sieger poison-resistant flammable gas detection elements. The high-temperature sensor has a very stable baseline, allowing alarm trip points to be set as low as 5% LEL across a temperature range of -25°C to +150°C (-13°F to +302°F). The gas measuring range can be configured from 0-20% LEL up to 0-100% LEL, depending on the type of controller used.

Aluminium explosion-proof assembly, fully encapsulated, designed for use in hazardous locations. Use a junction box for a catalytic bridge output or with a Sensepoint RFD transmitter for local display and 4-20mA output.

Features

• Fast response speed, T60 < 6 seconds. T90 < 10 seconds.
• Output Signal mV bridge.
• Low power consumption.
• Mounting Thread 3⁄4 “NPT.
• Weight 200g (7oz).
• Approval UL.

Order Information

2430K0001 705 High-Temperature Flammable Detector. Includes: 00705-A-1733 detector, 2430-0021 junction box (SG16B) & 02000-A-1640 weatherproof cap.

Accessories

2430-0021 Junction Box, Class I, Div. 1 Groups BCD.
2441-0022 UL/CSA Aluminium Junction Box Assembly.
02000-A-1640 Weatherproof cap for use with combustible detector, including remote gassing nozzle.
00780-A-0035 Flow Housing (full stainless steel, for high temp applications).
00780-A-0076 Stainless steel weather housing (for use in high-temperature applications or with duct mounting kits).
02000-A-1635 Weatherproof cap for use with toxic detector, including remote gassing nozzle.
02000-A-1642 Collecting cone for use with flammable detector.

Spares

00705-A-1733 705 Flammable Detector- Aluminium- UL- 3/4″NPT- 0-100% LEL.
00705-A-1735 705 High-Temperature Flammable Detector- Aluminium- 150°C UL-3/4 “NPT.
00705-A-1736 705 Flammable Detector- Aluminium- INMETRO- 3/4″NPT- 0-100% LEL