PQN Series PQN-7534 Hydrogen Cyanide gas detector is designed to detect Hydrogen Cyanide gas in the industrial areas.
With ATEX / IECEx, SIL2 certifications, EN 60079-29: 1 performance approval, and high ingress protection class, it has proved its suitability for harsh environmental conditions.
The Electrochemical sensor employed PQN-7534 provides excellent output in the 0-25ppm range.
Connectivity
• Sensor: Electrochemical in PQN provides accurate and reliable results.
• Modbus: It is easy to integrate PQN detectors into SCADA systems easily via open source Modbus RS485(RTU) codes
• Outputs: Different devices can be operated/controlled at the same time thanks to the 4-20mA analog, Modbus RS485 and Relay outputs
• Relay Contacts: PQ-3R+ relay module integrated PQN Series detectors can manage other equipment or can be linked to firefighting panels.
Maintenance and Installation
• Sensor Replacement: Allows sensor replacement with pre-calibrated sensor head to provide easy maintenance.
• Installation: Designed for either wall or ceiling mounting applications
• Entry: 1/2''NPT - 3/4''NPT - 3xM20 cable entries
• Remote Control: Detector status can be monitored Prosense Gas Monitoring software remotely.
Robust and Reliable
• Body: Aluminium die-cast body and SS316 stainless steel sensor head superb performance under harsh environmental conditions with IP65 protection class.
• Protection: Sunshield and waterproof caps are available for use in extreme conditions.
| Sensor Technology | Electrochemical |
| Output Signal | 4-20mA Analog and RS485 Modbus RTU |
| Sensor Warm-Up | 60sec |
| Response Time(T90) | <30sec |
| Accuracy | %±1 |
| Operating Temperature | -40°C ~ +70°C |
| Humidity | 0~ 100%RH Non-Condensing |
| Input | Min 10VDC - Max 32VDC - Nominal 24VDC |
| Event Logging | Records alarm, fault and maintenance events up to 250 logs |
| Power Consumption | Max. 4W |
| Relay Outputs | 2 Alarms (Programmable) and 1 Fault (All relays are NO/NC adjustable) |
| IP Rating | IP65 / IP66 |
| Junction Box | Epoxy Painted Die-Cast Aluminum / 316 Stainless Steel |
| Sensor Head | 316L Stainless Steel |
| Dimensions/Weight | 196,96x145,99x112mm / 2100gr |
| ATEX Marking | II 2G Ex db IIC T6 Gb II 2G Ex mb db IIC T6 Gb I M2 Ex db I Mb |
| Hazardous Class | Zone 1 - Zone 2 - M2 |
| Certificates | ExVeritas 18 ATEX 0371X IECEx EXV 18.0021X FTZU 18 ATEX 0086 IEP12 ATEX 6118X SIL2 |
| Standards | IEC EN 60079-0 IEC EN 60079-1 IEC EN 60079-18 IEC EN 60079-29-1 |
| PQ-3R+ | Provides 2xAlarms, 1xFault Relay Contacts |  |
| P-IP66 | Stainless Series IP66 Adapter |  |
| P-ASU | Prosense Sampling Unit |  |
| PQD-SS | PQD SS316L Stainless Series Enclosure |  |
| P-GTA | Celling Mount Collecting Cone |  |
| PK-KEP | Prosense Calibration Cap |  |
PQN Series Datasheet