Combustible and explosive gas concentration detector
Other Products
N-Methylpyrrolidone NMP Gas Alarm
Product Overview
The N-Methylpyrrolidone NMP gas alarm developed and produced by Besian adopts a diffusion method to convert the gas concentration signal at the monitoring point into an electrical signal in real-time. This signal is amplified and then processed by the CPU via AD sampling, temperature compensation, and intelligent calculation. If the measured value exceeds the set alarm concentration, an alarm signal is issued.
The BSA/QT-BJ series intelligent gas alarm features advanced technology, superior performance, high stability, compatibility with multiple signal outputs, and convenient installation and maintenance, greatly meeting the requirements for high reliability of equipment in industrial safety monitoring.
Product Features
*On-site LCD display of gas concentration;
*High-precision, long-life imported sensors;
*Meets customer requirements for any range between 1-99999 and all gas detection needs
*Allows adjustment of alarm points, zero points, and calibration of target points without opening the cover via a controller or remote control;
*Suitable for detecting dozens of gases and can display gas names;
*Gas unit names: ppm, LEL%, VOL%, mg/m3;
*Upper and lower alarm points can be set arbitrarily within the full range
*Two sets of normally open passive contact outputs for controlling fans or AC contactors of solenoid valves; optional audible and visual alarm;
*Exquisite power supply design, superb lightning protection design, and pure SMT component patch process ensure stable product performance;
*Ingenious structural design makes installation extremely simple;
Design Standards
GB50493-2009 "Design Specification for Combustible Gas and Toxic Gas Detection and Alarm in Petrochemical Enterprises"
GB 12358-2006 "General Technical Requirements for Gas Detection and Alarm Instruments for Workplace Atmosphere"
Execution Standards
GB3836.1-2010 "Electrical Equipment for Explosive Gas Atmospheres - Part 1: General Requirements"
GB3836.2-2010 "Electrical Equipment for Explosive Gas Atmospheres - Part 2: Flameproof Enclosure 'd'"
Product Technical Parameters
Product Name | N-Methylpyrrolidone NMP Gas Leak Detection Alarm | Product Model | BSA/QT-BJ(NMP) |
Detected Gas | N-Methylpyrrolidone NMP | Detection Principle | Photoionization PID/Catalytic Combustion |
Detection Range | 0-2ppm, 0-20ppm, 0-200ppm, 0-2000ppm, 0-10000ppm, 0-100%LEL, etc. optional | ||
Resolution | 0.001ppm, 0.005ppm, 0.01ppm, 0.1ppm | Detection Method | Diffusion type, Pump suction type optional |
Display Method | LCD Display | ||
Output Signal | User can define based on actual requirements: 1.Two-wire 4-20mA current signal output (three-wire optional) 2.RS-485 digital signal output, can store data on computer with RS232 adapter card (optional) 3.2 groups of relay output; passive contact capacity 220VAC 3A, 24VDC 3A (optional) 4.Alarm signal output: on-site audible and visual alarm, alarm sound: <90 decibels (optional) | ||
Detection Accuracy | ≤±2% (FS) | Repeatability | ≤±1% |
Zero Drift | ≤±1% (FS/year) | Alarm Mode | Audible and Visual Alarm |
Response Time | <20S | Recovery Time | <20S |
Explosion Proof Type | Intrinsic Safety Type | Explosion Proof Mark | Ex ibdIICT6 |
Protection Rating | IP65 | Display Unit | PPM, %LEL, %VOL arbitrarily settable |
Major Application Industries
N-Methylpyrrolidone is widely used in industries such as lithium batteries, pharmaceuticals, pesticides, pigments, cleaning agents, and insulation materials
| Industry Category | Instruments & Meters/Other Instruments/Gas Alarms & Detectors |
|---|---|
| Product Category | |
| Brand: | BSA/QT-BJ（NMP） |
| Spec: | BSA/QT-BJ |
| Manufacturer: | 深圳市貝斯安智能科技有限公司 |
| Origin: | 114403 |
