DESCRIPTION
The PointWatch TM detector is a diffusion-based
point-type infrared gas detector approved to
provide continuous monitoring of methane gas
concentrations in the range of 0 to 100% LFL.
The detector provides a 4-20 mA output signal,
corresponding to the detected gas concentration.
The detector has Division and Zone explosion proof ratings and is suitable for use in indoor and
outdoor applications.
PointWatch is ideally suited for use in harsh environments and
where the cost of required maintenance for conventional catalytic
detectors is prohibitive. The PointWatch IR detector will perform
reliably in the presence of silicone and other catalytic poisoning
agents and can also operate in oxygen free environments or
where high background gas levels are present. There are no
known poisons that affect this technology.
The PointWatch detector is globally certified for use in Class 1,
Divisions 1 and 2, and Zones 1 and 2 hazardous areas. It is
also approved as a stand alone gas detector, and complies with
global approvals when connected to a stand-alone approved
controller for life safety. The approved Det-Tronics controllers
are the FlexVu ® UD10, FlexVu ® UD30, Infiniti ® U9500, R8471,
and Eagle Quantum Premier ® (EQP).
HIGHLIGHTS
- Compliance to ANSI/ISA 12.13.01-2000 performance standard.
- Requires no routine calibration to ensure proper operation.
- Fail-safe operation.
- Continuous self-test automatically indicates a fault or fouled optics condition.
- Unique multi-layered filtering system protects optics from dirt and water ingress.
- Internal heating system minimizes condensation, allowing reliable operation through temperature extremes.
- There are no known poisons, e.g. silicones or hydrides, that compromise the integrity of the measurement.
- Performs well in the presence of high concentrations or constant background levels of hydrocarbons, and in oxygen depleted atmospheres.
- Standard 4–20 mA output (current source).
- 0-2.4 mA indicates a calibration or fault condition.
- Compact, lightweight, explosion-proof housing is designed for duty in harsh environments.
- Standard 0 to 100% LFL detection range.