G2307 gas concentration analyzer measures H2CO, CH4, and H2O

NegotiableUpdate on 02/24

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Nature of the Manufacturer: Producers

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Overview

Measure H2CO, CH4, and H2O

Product Details

The Picarro G2307 gas concentration analyzer can accurately measure formaldehyde (H2CO), methane (CH4), and water vapor (H2O) in real-time. This analyzer is equipped with coating components in key gas pathways, which reduces the tendency of H2CO molecules to adhere to the surface of the gas pathway, thereby improving the measurement response time. This analyzer is an ideal solution for atmospheric research and monitoring of formaldehyde in photochemical smog and various emission sources. Can be used to measure sensitive trace amounts of formaldehyde and environmental formaldehyde to ensure indoor air quality.

Fast, continuous, and real-time measurement of H2CO
Long term stability to meet low-frequency calibration requirements
Small footprint, suitable for on-site or laboratory deployment, no need for consumables
Equipped with water vapor correction function, automatically reporting dry gas mole fraction

For H2CO, the accuracies at 2 seconds, 10 seconds, and 5 minutes are 1.2 ppb, 0.6 ppb, and 0.1 ppb, respectively. For CH4, the accuracies are 20 ppb, 10 ppb, and 2 ppb, respectively. For H2CO at 0-20 ppb, the rise time (10-90%) and fall time (90-10%) are within 1 minute. The drift within 24 hours at standard temperature and pressure (STP) is 1.5 ppb. The water calibration software will automatically report the dry gas mole fraction to help reduce the complexity of research work and save consumable costs.

G2307 formaldehyde	Typical performance**	Specifications***
Detection limit (3 σ, 300 seconds)	0.18 ppb	0.3 ppb
Zero drift (72 hours)* (Peak to peak, 50 minute average)	0.33 ppb	1.5 ppb
Accuracy (1 σ, 2 seconds) Accuracy (1 σ, 10 seconds) Accuracy (1 σ, 300 seconds)	0.7 ppb+0.1% reading 0.31 ppb+0.05% reading 0.06 ppb+0.02% reading	1.2 ppb+0.1% reading 0.6 ppb+0.05% reading 0.1 ppb+0.02% reading
Measurement Interval	< 2=''>	< 2=''>
Response time (0-20 ppb) (Rise/Fall Time 10-90%/90-10%)	< 5=''>	< 5=''>
measuring range	0–30 ppm	0–30 ppm

*The Picarro analyzer does not require a zero point reference gas or zero point reagent kit to operate or meet specifications.

**The typical performance is defined as the median of the test results of ten G2307 analyzers manufactured in sequence in 2019. Results can be requested.

***Each purchase of an analyzer comes with specifications and a test report (certificate of conformity) for the instrument.

G2307 Formaldehyde Calibration
Calibrating any gas phase analyzer using formaldehyde standard solution is a challenging task. Methane (CH4) is a commercially available gas whose absorption spectrum is adjacent to formaldehyde, making it an excellent proxy gas for verifying accuracy and linearity. The use of CH4 can be successfully validated on Picarro G2307, so there is no need to calibrate with H2CO standard solution. If you would like to learn more about Picarro's novel and robust proxy gas verification method, please email us sales@picarro.com Contact Picarro representative.

G2307 System Specifications
measurement	Cavity ring down spectroscopy (CRDS) technology
Measurement unit temperature and pressure control	± 0.005 ° C; ± 0.0002 atmospheres
sample temperature	-10 to 45 ° C
Sample flow rate and pressure	At 760 Torr pressure, it is approximately 400 standard milliliters per minute (sccm); 300 to 1000 Torr (40 to 133 kPa)
Sample humidity	<99% relative humidity (at='' 40='' ° C=''>99%>
Temperature range	10 to 35 ° C (during instrument operation); -10 to 50 ° C (under instrument storage conditions)
ambient humidity	<99%>99%>
Other tested gases (specifications)	CH4 (0-20 ppm; 20 ppb+0.2% reading at 2 seconds, 2 ppb+0.05% reading at 300 seconds, 1σ）； H2O (0-3%; 10 ppm+0.1% reading at 2 seconds, 1σ）
accessory	Already includes: pump (external), keyboard, mouse Optional: LCD display, 16 channel gas sampler (A311-S)
data output	Windows 10 operating system (RS-232 interface, Ethernet interface, USB interface, data stream; Optional analog signal 0-10 V)
Pipe joint	¼ inch Swagelok ® PFA pipe joint
size	Analyzer: 17 inches wide x 7 inches high x 17.5 inches long (43.2 x 17.9 x 44.6 centimeters), excluding 0.5 inch foot pads External pump: 7.5 inches wide x 4 inches high x 11 inches long (19 x 10.2 x 28 centimeters)
Installation form	Workbench or 19 inch rack mounted chassis
weight	The analyzer weighs 47.0 pounds (21.3 kilograms) and the external pump weighs 14.3 pounds (6.5 kilograms)
power consumption	100-240 volts AC, 47-63 Hz (automatic induction),<260='' watts (total power) when turned on; When running stably, it is='' 110=''> Analyzer), 80 watts (pump)