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BW Technologies GasPoint Transmitter with NH3 Sensor Unit, Modbus Compatible

Item #:
GP-AD
Brand:
BW Technologies
BW Technologies GasPoint Transmitter with NH3 Sensor Unit, Modbus Compatible
$2,195.00
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Discontinued

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BW Technologies GasPoint Transmitter with NH3 Sensor Unit, Modbus Compatible

BW Technologies GasPoint Transmitter with NH3 Sensor Unit, Modbus Compatible

$2,195.00

Discontinued


GP-AD GasPoint Transmitter with NH3 Sensor Unit, Modbus Compatible by BW Technologies

The GasPoint transmitter provides a 4-20 mA output signal that can be connected to any control system (DCS, PLC, etc.). With advanced sensor technology and microcontroller based operation, the GasPoint provides continuous monitoring of hazardous gases.

  • The GasPoint transmitter can accept any GasPoint sensor type: electrochemical, catalytic or IR (infrared). All plug-in sensor assemblies are field-interchangeable.
  • Full function sensor integrity test (auto) continuously advises gas sensing ability and life ended
  • Non-intrusive, one-person calibration with auto zero and auto span
  • Equipped with three 5-amp relay contacts, two gas alarm relays (low/high) and fault alarm. Field-selectable normally energized/de-energized and latching/non-latching alarm relay functions.
  • Two backlit alphanumeric LCDs advise all environmental and gas hazard conditions as well as instrument and sensor status
  • Remote toxic/oxygen sensors can be installed over 3,900 ft./ 1,100 m away; combustible sensors over 1,550 ft./475 m. Kit can be installed at any time.
  • Alarm setpoints displayed on demand, simply press the external button
  • Field programmable alarm levels
  • Backlight (auto) in low light conditions and alarm
  • Extensive fault diagnostics
  • 2-way digital communication using MODBUS module

Display advises:

  • Gas type monitored
  • Continuous (%LEL, %v/v or ppm) readout of gas concentration
  • Alarm level and type encountered - LOW/HIGH or FAULT
  • When sensor has failed its automatic daily self-test
  • "Sensor Replacement" and "Sensor Expired" indications
  • When to apply gas during calibration

Special Features:

  • Change gases monitored in the field at any time. The GasPoint Transmitter will recognize the sensor installed and test and reset itself to that sensor type.
  • No junction box connection required.
  • Daily sensor integrity test (auto) monitors sensor operation, length of time sensor has been in service and advises when sensor requires replacement.
  • GasPoint allows you to set or change calibration time and gas alarm setpoints in the field.
  • Select or modify the measuring range using a simple dipswitch.
  • The optional plug-in MODBUS expansion module provides an addressable communications interface (1-247).

Part Number: GPAD

System Specifications:
MONITOR: 3-wire, 4-20 mA gas transmitter with advanced microcontroller-based circuitry
Power Input: 12 to 32 volts DC
Output Current: 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)
Power Consumption: Toxic Versions: 40 mA at 24 VDC
Combustible Version: 100 mA at 24 VDC
Relays: 50 mA per relay at 24 VDC
SENSORS: Plug-in, smart sensors
Detection Type: Combustible gases: catalytic or IR; Toxic gases and Oxygen: electrochemical
Self-Test: Automatic daily self-test of sensor integrity and sensor life
Relative Humidity: 5 to 95% RH non-condensing
Drift: Zero: <5% per year; Span: <10% per year
CALIBRATION: Non-intrusive, via pushbutton
Auto zero and auto span
DISPLAYS: 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
Alarm Setpoints: Two setpoints: user-selectable
RELAY CONTACTS: Three SPDT relays; 5 amps at 250 VAC
LOW/HIGH: Field selectable for normally energized/de-energized and latching/non-latching
TRANSMISSION RANGES: Relay contacts not considered.
CONTROLS: Calibration: Non-intrusive via external pushbutton
Alarm Setpoints: Simple up/down pushbuttons with LCD readout of setpoints
PHYSICAL: 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.)
Transmitter: Nema 4, explosion-proof, anodized aluminum enclosure with mounting flanges
Sensor: Stainless steel enclosure
WARRANTY: Instrument: 2 years non-prorated; Sensor: 2 years full replacement warranty

Gas Monitoring Specifications:
Gas Monitoring Specifications Detectable Accuracy LCD Increment Temperature Range Units Programmed Measuring Ranges
Combustibles - Catalytic 1% 1 -40 to +90°C / -40 to +194°F %LEL 0-100*
Combustibles - Infrared 1% 1 -40 to +70°C / -40 to +150°F %LEL 0-100*
H2S 0.25 ppm 1 -40 to +50°C / -40 to +122°F ppm 0-20, 0-50, 0-100*, 0-500
CO 1 ppm 1 -20 to +50°C / -4 to +122°F ppm 0-50, 0-100, 0-500*, 0-1,000
NH3 1 ppm 1 -10 to +50°C / +14 to +122°F ppm 0-50*, 0-100, 0-500, 0-1,000
HCN 0.1 ppm 0.1 -20 to +50°C / -4 to +122°F ppm 0-20.0*, 0-50.0, 0-100
NO2 0.1 ppm 0.1 -20 to +50°C / -4 to +122°F ppm 0-50.0*, 0-10.0, 0-20.0, 0-99.9
SO2 1 ppm 1 -20 to +50°C / -4 to +122°F ppm 0-100*, 0-50, 0-20, 0-10
O2 0.01% 0.1 -20 to +50°C / -4 to +122°F %v/v 0-30.0%*
Cl2** 0.1 ppm 0.1 -20 to +50°C / -4 to +122°F ppm 0-5.0*, 0-10.0, 0-100.0

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