RAEGuard 2 PID

The RAEGuard 2 PID is a fixed photoionization detector (PID) that measures a broad range of volatile organic compounds (VOCs). The RAEGuard 2 PID operates on 10 to 28 VDC and provides an analog (4-20mA) three-wire signal output, and RS-485 Modbus digital signal output. Calibration and maintenance have been greatly simplified as the digital PID module can be easily removed in hazardous locations for calibration or maintenance.

List of Benefits

  • "Class I, Division 1 (Zone 1) continuous VOC monitoring solution for hazardous locations
  • Three wire 4-20mA analog output and RS-485 digital communication in ModBus protocol
  • Three dry contact relays1 (<30V, 2A) normally open (or normally closed), one for High and Low alarm, another for Fault alarm
  • Explosion-proof stainless-steel enclosure suitable for outdoor hazardous environment applications
  • Magnetic-key interface eliminates the need to open the explosion-proof housing when adjusting parameters.

 

The RAEGuard 2 PID is a fixed photoionization detector (PID) that measures a broad range of volatile organic compounds (VOCs). The RAEGuard 2 PID operates on 10 to 28 VDC and provides an analog (4-20mA) three-wire signal output, and RS-485 Modbus digital signal output. Calibration and
maintenance have been greatly simplified as the digital PID module can be easily removed in hazardous locations for calibration or maintenance.

The RAEGuard 2 PID has a graphic display and LED light status indicator for fault and alarm conditions. In addition, Low, High, and Fault relays1 can be configured to trigger external alarms or process controls. Over 200 correction factors1 are pre-programmed, and allow users to display
readings of a specific target gas. A magnetic key interface enables the detector to be calibrated and operational parameters adjusted with the explosion-proof enclosure in place.

Applications

  • Refineries and petrochemical plants
  • Power plants
  • Solvent recovery systems
  • Painting and coating operations
  • Waste water treatment plants
  • Air Quality
SpecificationDetail Description
RAE Guard 2 Fixed Sensor Head Specifications
Working Current DC 10 to 28V, 210mA at 24V
Power <5W
Output 4-20mA, Three-level programmable alarm relays (30 VDC, 2A) , RS-485 (Supports Modbus)
Sampling Internal diaphragm pump, up to 500cc/min
IP Rating IP-65
Mechanical Interface 3/4" NPT Male
Installation 2" pipe-holding or wall mounting
User Interface Three-key magnetic bar adjustment
Calibration Two points
Warranty 1 year for the pump, 2 years for the housing and electronics
Temperature -4° F to 131° F (-20° C to +55° C)
Humidity 0 to 95% relative humidity, non-condensing
Pressure 90 to 110kPa
Display 128 x 64 matrix backlit LCD, supports graphic display
Size 10.1" L x 7.9" W x 4.2"H (257 x 201 x 107 mm)
Weight 3.5 kg (7.7 lbs)
Material 316 stainless steel
Certification ATEX Ex II 2(1)G, Ex d [ia Ga] IIC T4 Gb, UL/CSAClass 1, Div. 1, Groups ABCD T4, IECEx Ex d [ia Ga] IIC T4, Gb
DigiPID Sensor Module Specifications
Power Supply 5V ±0.25V DC
Current 110 mA max
Power Consumption < 0.6W
Measuring Range 0.01 to 100 ppm, 0.1 to 1000ppm, 1 to 1000 ppm (No relays or correction factors)
Resolution 10 ppb, 1 ppm (depends on model)
Response Time Pumped (T90)
Calibration Two-point off-line and field calibration, Optional three-point calibration
Accuracy ±2% for calibration point
Analog Output 0.5 - 2.5V (ro=1.0k)
Digital Interface Serial Interface (UART), Transmit (Tx): 3.3V TTL, Receive (Rx): 3.3V TTL
Warranty 2 years for the lamp, 1 year for the sensor, pump, electronics, and housing
Operating Temperature -4º F to +131º F (-20º C to +55º C)
Humidity 0 to 95% RH non-condensing
EMI/RFI Highly resistant to EMI/RFI, Compliant with EMC Directive 2004/108/EC
Package 316 stainless steel, Spray watertight for IP-65 rating, Dust membrane for sensor front protection
Size 1.92" D x 5.94" L (49mm x 150.8mm)
Weight 19.4 oz (< 550g)
Certification ATEX II 1 G EX ia IIC T4 and 1M1 Ex ia I, UL/CSA Class I, Div. 1, Groups A B C D T4, IECEx Ex ia IIC T4 Ga and Ex ia I
 

Share this