Application
APHA-370 Ambient THC monitor
Overview
The APHA-370 continuously monitors atmospheric THC, NMHC, and CH4 concentrations using a cross-flow modulated selective combustion type method combined with a hydrogen ion detection method. The APHA-370 employs an independent, internal dry-method sampling device to achieve the highest levels of sensitivity and accuracy.
Features
The APHA-370 uses a combination of the flame ionization detection method and selective-combustion.
This gives it the advantage of the single-detector method plus the ability to perform continuous measurements, free of zero-drift, for THC, NMHC, and CH4. The design gives great stability and high sensitivity (0-5 ppm F.S.)
The APHA-370 has a relative-sensitivity correction function for CH4 and NMHC.
All the necessary features are built right into a single rack-sized instrument, including a catalytic unit for selective combustion (i.e., an NMHC cutter); a cataytic unit for generating reference gas and auxiliary combustion air (standard); and a sampling pump. The only supplemental gas required is H2.
Manufactured by HORIBA
Specifications
Principle | Flame ionization detection (FID) with selective combustion |
Application | THC, NMHC, and CH4 in ambient air |
Range | Standard ranges: 0-5/10/20/50 ppmC*; auto range ~ manual range selectable; can be operated by remote switching. |
Repeatability | ±1.0% of F.S. |
Linearity | ±1.0% of F.S. |
Sample gas flow rate | Approx. 0.9 L/min |
Indication | Measured value, range, alarm, maintenance screen |
Alarms | During AIC, zero calibration error, span calibration error, temperature error in zero gas purifier, ignition failure error, etc. |
On-screen messages are available in four languages | English, German, French, and Japanese. |
Input/output | • 0-1 V/0-10 V/4-20 mA, to be specified (2 systems: either (1) momentary value and integrated or (2) moving average value) |
Power | 100/110/115/120/220/230/240 VAC, 50/60 Hz (to be specified) |
Dimensions | 430(W) x 550(D) x 221(H) mm |
Mass | Approx. 33 kg. |
*ppmC is shown as symbol, not as unit.
Brochures
AP-370 series Air Pollution Monitor Brochure uploaded on 2013/12/20 (PDF:1.2MB)