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Honeywell SPM Flex Unit & Chemcassette Tapes

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Honeywell SPM Flex Unit & Chemcassette Tapes


Honeywell SPM Flex Unit & Chemcassette Tapes


Honeywell SPM Flex
The SPM Flex, the next evolution of our SPM and TLD gas Detectors with Chemcassette® tape
technology, is capable of working as both a fixed and a portable unit. The monitor detects the
ultrasensitive gases inherent in your operations, including hydrides, mineral acids and amines.

Our Chemcassette tape technology shows the presence of gas quickly and definitively with a
physical record. So you can prevent costly downtime from false alarms.

Features & Benefits
  • Visible at a distance with crisp, colorful LED bar on top of unit
  • Remote viewing through the web
  • Stands up to harsh conditions

Chemcassette Tapes
Chemcassette tapes are individually formulated for a specific gas or family of gases. Each Chemcassette tape is a proprietary chemical reagent system that acts as both a trapping and analysis medium, detecting and measuring ppb/ppm amounts of target gas with excellent sensitivity and response speed. Each Chemcassette tape is gas tested to assure proper response when installed in-field in a Honeywell Analytics/MDA Scientific gas Detector.


General Specifications

Detection Technique

  • Chemcassette tape-based with advanced self monitoring optics design


  • Height: 13.2 in. (33.6 cm); Width: 7.2 in. (18.3 cm); Depth without handle: 6.4 in. (16.3 cm); Depth with handle: 9.5 in. (24.1 cm)


  • 9.1 lbs. (4.1 kg)

Mounting screws

  • Concrete: 5/16 in x 2 in vibration-resistant stud anchor for concrete (McMaster-Carr 94475A185 or equivalent), add 0.25 in. to length when mounting bracket with sun shield Wood: 5/16 in. x 2 in. flange head lag screw for wood (McMaster-Carr 95526A375 or equivalent), add 0.25 in. to length when mounting bracket with sun shield

Battery type

  • Lithium ion

Battery life

  • Approximately 70% of its original capacity after 300 full charge/discharge cycles

Operating Temperature

  • 0ºC to 40ºC for most gases/applications

Operating Humidity

  • 0-100% RH for unit (Sample RH limited per tape/calibration). Sample line requires additional hardware to remove moisture in high RH conditions where condensing may occur. The sample must be non-condensing. Dry conditions may require humidification.

Flow System

  • Automatic flow control with bypass system, 250 or 500 cc/min at tape, higher flow at inlet to reduce sample time (internal bypass system); sample up to 100 ft

Local Alarms/Status

  • Visual: LEDs for alarm, normal condition and fault Audible: User selectable: Off, Low ~75 dB at 1 m, Medium ~85 dB at 1 m, High >90 dB at 1 m


  • 4 large buttons, 3.5 in. Color LCD TFT display, web server

Data Logging

  • Rolling up to 3 months (15 sec. with no gas reading, 1 sec. when reading gas), Event history (1500 events – approx. 1 year)

Maximum inlet/outlet pressure differential

  • The overall maximum load on the pump between the inlet and the exhaust should not exceed 10 inches H2O 


  • 250 V, 6 A maximum

Wire gauges

  • Minimum: 24; Maximum: 14


  • 2.0 or later

Indoor/outdoor use?

  • Both (the power supply is indoor only) Operating Altitudes -1,000 to 3,000 ft. above sea level: standard; 3,000 ft. to 6,000 ft. above sea level: requires adjustment by Honeywell Analytics

Ingress Protection rating

  • IP65

External switch or circuit breaker requirement

  • Meet or exceed all local codes and regulations (description & location)

Ventilation requirements

  • Mount with no obstructions within 4 in. (10 cm) of either side or within 2 in. (5 cm) above and below the detector

Electrical Power supply

  • Universal Line powered (90-260 VAC 50/60 Hz) for battery charger & non-classified use. Battery: 6+ hours under typical conditions – acts as battery back-up in fixed applications

Power consumption

  • ~1.9 A at 24 VDC (including battery-charging current)



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