Beijing york instrument
Phymetrix Moisture Measurement Innovation at Work
Add to Cart
General Description
The PGA 920 Muti-Gas Analyzer is designed too provide continuous,unattended monitoring of both oxygen and carbon dioxide or sulfur hexafluride(SF6) and trace moisture.
The focal point of the PGA-920 is its state-of-the -art sensor technologies .The oxygen sensor is an extended life electrochemical sensor with enhanced electrolyte system.This sensor provided exceptional accuracy and stability.Enhanced electrolyte system retards passivation of the sensor anode by allowing the products of oxidation to dissolve in the electrolyte.In effect,the sensor is renewed continuously resulting in a significant increase in sensor life.In addition,the enhanced mechanical design of the sensor helps to ensure long life and virtually eliminates leakage of electrolyte,a nagging(and expensive) problem assosiated with other types of sensors.PhyMetrix has complemented its oxygen measuring capabilities with a next generation NDIR sensor.The cabon dioxide sensor incorporates closed-loop control for enhanced long-term calibration stability.The control signal is generated by means of an optical referencing element that monitors source intensity.This methodology,coupled with a novel source homogenizing gas sampling chamber,yields a system with greatly improved tolerance to changes in the infrared source outputs.
Technical indicators
| Measuring range | 0~5000PPM; 0~5%; 0~20%; 0~100% (optional sensor) |
| display | 3-digit digital LCD display |
| Resolution | 0.1PPM or 0.01% |
| Preheat time | <2minutes (starting time) <30minutes (meet technical specifications) |
| Linear error | ≤±2%F.S. (which does not include calibration error) |
| Repeatability error | ≤±1%F.S. |
| Response time | T90 is about 0.15S (@1SCFH) |
| sensor type | NDIR infrared dual optical wavelength sensor |
| Operating temperature | 32~104F (0~40°C) |
| environment humidity | 0~85%, no condensate |
| Rechargeable battery power | AC115~230V |
| Application area | Class I , Div.I, Groups B, C, D. |
| size | 138*185*112 (w * d * h) |
| weight | 2.45Kg |