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
| Specification | Detail 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 |
RAEGuard-2-PID-Datasheet.pdf.pdf 1.44 MB
Manual - Current versions
RAE Systems RAEGuard 2 PID Gas Detector Manual.pdf 2.03 MB