SI2104 Hydrogen Sulfide (H2S) Gas Concentration Analyzer

NegotiableUpdate on 02/24

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Overview

Measure H2S

Product Details

hydrogen sulfide（H₂S）Gas concentration analyzer

●approveReal time fence line and movementH₂SThe measurement

High sensitivity, capable of meeting regulatory requirements

Good stability, continuous operation, minimizing downtime and data loss to the greatest extent possible

● Easy to operate, no consumables required, reducing costs

● Small size, quick installation, simplified new deployment

Picarro SI2104Gas concentration analyzer can provide accurate and real-time hydrogen sulfide（H₂S）Observation. The analyzer haspptThe detection limit of the level is low, the size is small, and it is easy to install and use.

SI2104An analyzer is a technically breakthrough instrument that can be deployed on site and can be used for various research purposes, such as monitoring air quality, chimney emissions, and drawing smoke plume maps of hydrogen sulfide emissions.H₂SThe smoke plume diagram can be used to indicate the emissions of toxic volatile organic compounds such as benzene, toluene, xylene, and acidic gases from chemical plants. This analyzer can be installed on the factory fence line for fixed monitoring. Or with mobile weather stationsGPSWhen used in conjunction with the system and inverter, it is used for mobile leak detection and investigation.

PicarroThe analyzer is equipped with diagnostic software that can continuously measure and record operating parameters to achieve strict quality control and ensure data integrity. If the analyzer is connected to the Internet,PicarroThe after-sales support department can remotely access it to provide quick support and solve problems.

PicarroPatent based cavity decay spectroscopy technology（CRDS）, can ensureSI2104Analyzer implementationpptContinuous monitoring of the lower limit of level monitoring performs better than traditional techniques such as Fourier transform infrared spectroscopy（FTIR）Gas chromatography. Due to the limited optical cavity of the analyzer35 ml, can ensure that the analyzer has a fast gas response time (Figure)1）Low noise and high sensitivity (Figure)2）Such characteristics.

Response time of hydrogen sulfide analyzer

SI2104 硫化氢（H2S）气体浓度分析仪

picture1 answerSI2104The analyzer is100 ppbPerform multiple cycle response time tests under changes in hydrogen sulfide concentration. Gas response rate ＜5 sEnsure that even short-term plumes can be detected.

When measuring the atmosphere, SI2104Performance of

SI2104 硫化氢（H2S）气体浓度分析仪

Figure 2 shows the continuous monitoring of hydrogen sulfide in the ambient air for more than 48 hours without zero gas reference and calibration (green line). The high sensitivity of the instrument ensures the detection of any situation exceeding the acute exposure reference level (A-REL, 30 ppb) and chronic exposure reference level (C-REL, 7.1 ppb, California Environmental Health Hazard Assessment Office, USA). The average value of the dataset is 0.31 ppb, with a standard deviation (1 sigma) of 0.12 ppb (5-minute moving average).

SI2104 Performance Specifications	truePerformance guarantee*
Low detection limit（3σ，100 second）**	1 ppb [1.44μg/m³]
Drift（24 hrs）***（50The difference between the maximum values of the minute averages	± 2 ppb
Accuracy（1σ，10 second） accuracy（1σ，100 Seconds)	1.5 ppb 0.5 ppb
Measurement Interval****	＜ 4 s
measuring range (Ensure accuracy)	0~10 ppm
response time(Rising)/fall time10-90%/90-10%）	≤10 s（100 ppbUnder changing circumstances

*The analyzer comes with a test report when it leaves the factory.

**In1 ATM and 25At ℃, convert to μg/m³.

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

****When conducting span measurements, the measurement interval will be increased to twice the listed parameters.

SI2104 system specifications
measurement	Cavity ring-down spectroscopy （CRDS）
Measure chamber temperature and pressurestrongcontrol	± 0.005℃；± 0.0002 atm
sample temperature	−10~45℃
Sample flow rate and pressure	make an appointment0.4 slm（760To), no filtering required600~950support from underair pressure（80~127 kPa）
Maximum rate of change in ambient temperature	5 ℃/hr
Sample humidity	＜ 99%Relative humidity（40℃Under non condensing conditions, there is no need for drying
environmenttemperature	10~35℃（Instrument operation）；−10~50℃（instrumentstoragecondition）
environmenthumidity	＜ 85%relative humidity，Under non condensing conditions
itsIt measuresgas	H₂O(Typical accuracy: ≤)0.02%Reading)
join in marriagepiece	wrapcontain：vacuumPump (external)place）、keyboard、mouse Optional: LCD display（A0901）The16Road sampler（A0311，A0311-S）Rack mounted（A0954）
data output	RS-232EthernetUSBAnalog signal0~10 V、Modbus、4~20 mA(Optional)
Air inlet connector	¼ inchSwagelok ®SSConnector (recommended ¼ inch)OD PFAPipe)
shapesize	Analyzer:43.2(Width) × 21.3(High) × 62(Long) cm, including foot pads External pump: 15.5(Width) × 22(High) × 34.5(Long)cm
installform	Desktop or19Inch rack mounted chassis
weight	Analyzer ＜25 kgThe external pump is6.5 kg
authentication	CEauthentication
Power requirements	100~240 VAC power;47~63 Hz(Automatic detection); At startup (total)<375 WSteady state operation:120W(analyzer),150 W(Pump)
Application precautions	We need an air like substrate. equalH₂O、CO₂andCH₄When the concentration is much higher than the normal environmental level, as well as organic compounds including but not limited to ethane, acetylene, and other nitrogen-containing and sulfur-containing compounds, it may interfere with the measurement.H₂SThe accuracy is ±3% +Accuracy of gas cylinders. For more details about the experimental conditions, please contact us.