| Item | Value |
|---|---|
| Measured gases | |
| Measuring range | |
| Detection principle | electrochemical |
| Accuracy | |
| Resolution | |
| Response time | |
| Ingress protection | IP55 |
| Explosion protection | EEx ia IIC T2 |
| Operating temperature | -20℃ ～ 45℃ |
| Power supply | 4.8V/1250mAh rechargeable NiMH battery, alkaline battery adapter uses 4 AA alkaline batteries |
| Output signal |
VRAE 5-in-1 detector PGM-7800-7840 is selectedflammable gas dual Measuring rangeLEL/VOL automatic switching,Optional up to five sensors for simultaneous detection,Built-in powerful sampling pump,Large capacity battery for long continuous working time.
• flammable gas dual Measuring rangeLEL/VOL automatic switching
• Up to five sensors can be detected simultaneously
• Built-in powerful sampling pump
• Large capacity battery for long continuous working time
• High-volume data acquisition
• High brightness LED red light flashing alarm and loud alarm
• Abrasion-resistant, waterproof, and stain-resistant rubber housing
Dimensions: 21×7.6×4.9 cm
Weight: 568g (with battery)
Sampling method: pump suction type
Shell material: engineering plastic, rubber jacket
Ingress protection: IP55, water and dust resistant
Resistance to electromagnetic radiation: EMI/RF rating: EMC Directive 89/336/EEC
Operating temperature: -20℃ ～ 45℃
Ambient Humidity: 0% ~ 95% Relative Humidity (Non-Condensing)
ATEX certified: EEx ia IIC T2
UL/cUL/CSA Certifications: Class I, Division 1, Group A, B, C, D
Display: 2 lines, 16 digital LCD display, automatic backlight
Display language: English + symbols
Display Value: Sensor name (up to five), real-time detection value, highest and lowest values for all detections, TWA/STEL value (except oxygen and flammable gas), battery voltage, remaining time for data storage
Buttons: 1 operation key, 2 function keys
Alarm Form: 95dB@30cmBuzzer, red LED flashing
Alarm signals: high/low concentration alarm, TWA/STEL alarm (except oxygen and flammable gas), low battery alarm, sensor failure alarm, pump blockage alarm
Alarm point setting: Set high/low alarm limits and TWA/STEL alarm limits separately (except oxygen and flammable gas)
Data storage: 16,000 readings (54 hours at 1-minute intervals, 5 gases)
Sampling interval: 1-3600 seconds adjustable
Data Communication: Data download via RS232 interface connection to computer
Sampling pump flow rate: 250cc/min~400cc/min
Battery: 4.8V/1250mAh rechargeable NiMH battery, alkaline battery adapter uses 4 AA alkaline batteries
Operating time: 10 hours of continuous operation (depending on the working environment and frequency of use)
Charging time: 10 hours
Calibration method: zero/extended calibration
Sensor configuration: 1 LEL or LEL/VOL sensor detects flammable gas, 1 EC sensor detects oxygen (PGM-7800), 3 (PGM-7800)/4 (PGM-7840) EC sensors detects toxic gas
It is suitable for industrial safety monitoring and on-site inspection scenarios.