GasPoint
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PRODUCT DESCRIPTION
The GasPoint transmitter by BW Technologies provides continuous monitoring of hazardous gases through advanced sensor technology and microcontroller based operation. The GasPoint transmitter can accept any GasPoint sensor type: electrochemical, catalytic or IR (infrared). All plug-in sensor assemblies are field interchangeable and a daily sensor integrity test is automatic and monitors sensor operation and length of time the sensor has been in service.
The GasPoint transmitter is equipped with three 5-amp relay contacts, two gas alarm relays (low/high) and fault alarm and two backlit alphanumeric LCDs will advise all environmental and gas hazard conditions as well as instrument and sensor status.
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PRODUCT SPECIFICATIONS
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Monitor
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3-wire, 4-20 mA gas transmitter with advanced microcontroller-based circuitry
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Power input
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12 to 32 volts DC
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Output current
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Normal Operation: Isolated linear 4-20 mA output
Calibration Mode: Steady 3 mA (auto reset to normal operation)
Fault Mode: 2 mA signal (and less)
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Power consumption
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Toxic Versions: 40 mA at 24 VDC
Combustible Version: 100 mA at 24 VDC
Relays: 50 mA per relay at 24 VDC
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Sensors
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Plug-in, smart sensors
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Detection type
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Combustible gases: catalytic or IR; Toxic gases and Oxygen: electrochemical
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Self-test
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Automatic daily self-test of sensor integrity and sensor life
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Relative humidity
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5 to 95% RH non-condensing
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Drift
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Zero: <5% per year; Span: <10% per year
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Calibration
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Non-intrusive, via pushbutton Auto zero and auto span
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Displays
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Two backlit liquid crystal displays
LCD 1 3-digit continuous readout of the gas present (ppm, % LEL or %v/v)
LCD 2 Alphanumeric diagnostic status display
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Alarm setpoints
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Two setpoints: user-selectable
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Relay Contacts
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Three SPDT relays; 5 amps at 250 VAC
LOW/HIGH: Field selectable for normally energized/de-energized and latching/ non-latching
FAULT: Normally energized and non-latching
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Transmission Ranges
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Relay contacts not considered. (For ranges with relays see manual.)
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Controls
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Calibration: Non-intrusive via external pushbutton
Alarm Setpoints: Simple up/down pushbuttons with LCD readout of setpoints
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Physical
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Size: 6.8 x 7 x 4.3 inches / 17 x 17.8 x 10.8 cm (approx.)
Weight: 4.85 lb. / 2.2 kg (approx.)
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Transmitter
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Nema 4, explosion-proof, anodized aluminum enclosure with mounting fl anges
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Sensor
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Stainless steel enclosure
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Warranty
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Instrument: 2 years non-prorated; Sensor: 2 years full replacement warranty
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HEAD OFFICE
Unit 5A, 2 Resolution Drive
Caringbah, NSW 2229
Australia
Ph: 61 2 9531 5444
Fax: 61 2 9531 5411
sales@learsiegler.com.au
