Environmental Equipment

Suspended Particles upto 100 microns have emerged as the most critical among all the criteria air pollutants & is caused by number of sources like:-

• Large, medium & small-scale industries

• Road dust construction activities, house hold fuel cooking, waste burning, vehicular emissions etc.

In order to control the pollution, it is necessary to periodically monitor the air to determine the extent of pollution and to identify the source of emission SLEHUS123 is designed to meet these needs. This model confirm to guidelines of Central Pollution Control Board.

Principle

The high volume air sampler collects suspended particulates on large filter paper. The name high volume is appropriate because the sampling flow rate has a high level of 20 to 60 standard cubic feet per minute (SCFM). Because of the high flow rate, large quantities of particles ranging from 0.1 to 1 gram are collected over a typical 24-hour sampling period. This facilitates gravimetric and chemical analysis and is the advantage high volume samplers have over other air sampling methods.

Special Features

• Brushless Blower.
• Low running cost.
• Low noise operation.
• Controlled flow.
• Light Weight & Small in Size.
• Drain plug for manometer.

Technical Specification :-

SPECIAL FEATURES         

• Low noise operations
• Brushless Blower
• Portable for Easy Transportation
• Controlled Flow        
• SPM of Particle Size less than 100 microns
• RSPM of Particle size Less than 10 microns

PRINCIPLES

Suspended Particles in the air are sampled at constant rate of 0.9 to 1.3 m³ /min through the inlet of cyclone. By virtue of their momentum, particles greater than 10 microns are carried vertically upwards by the air flow and collected on a filter paper of 8 x 10 inch.

TECHNILCAL SPECIFICATION

1. Maximum particle concentration:    35,000/L

2. Sensitivity:                        0.3μm

3. Sample flow rate:       1.0cfm

4. Sample period:      1 minute to 10 minutes

5. Sample times:          1 to 10 times

6. Purge time:                    <20min

7. Measure mode:            manual or auto

    a) Manual mode:                                  measurement starts and stops manually, particle counter display or printout data without storage

     b) Auto mode:                                    measurement starts manually and then particle counter operate in accordance with the parameters you have set; data will be stored and calculate

The CLJ-H603 model is reliable and easy-to-use machine: it’s handheld, ergonomically designed and lightweight. The model CLJ-H603 counts airborne particles in six different size ranges simultaneously. Count data is displayed on screen (320 x 240 pixels, high resolution) as total number of particles (cumulative count). Data can be easily downloaded to computer, or print out by an optional printer. Now it is easy to carry a particle counter right to the point of interest and obtain accurate results-results you can immediately print or store to computer. The large LCD display lets you see the data easily and err-free.

Cost-Effective CO2 monitors made with IR-SOC technology

 NDIR technology to Improve the long term Stability

The Alarm mode will sound at 1000PPM or adjust Alarm level

Several Modes for adjusting the setting parameters

Portable, accurate handheld CO2 Monitor

Spectro Series model SLE 7000 UNIVERSAL is Stack Gas Analyzing System that can be configured for 1 gas to 8 gas analysis. Add-on modules make it flexible and adaptable to any process conditions. Also it offers various detection methods like NDIR, electrochemical, paramagnetic and ZrO₂ technology. Spectro Series model SLE 7000 UNIVERSAL can simultaneously ensure up to eight gas components.

VOC MONITOR AND CONTROLLER (SLE-VOC-01)

The Spectro VOC Monitor gas sensor module provides state of the art gas measurement in a flexible cost effective package.

1. Each module is ready to use with multi-point calibration
2. Outputs include analog voltage, relay and status indicators
3. With optional RS232, RS485 and LED (blue) or LCD displays.

 SOUND LEVEL METERS (SLE-834)

The Sound Level Meter is used to measure sound level in decibels (dB). An output port on the meter records sound level data. A switch on the meter is used to select dBA or dBC weighting. The Sound Level Meter also has an LCD panel, which allows you to use it as a stand-alone device. A dB range switch and a response switch provide flexibility in the standalone mode.

Ambient gas monitoring and control

Active sampling for higher accuracy

Analog • Digital • Relay outputs

Large easy -to - read display

Alarm or Control options

Low maintenance

Easy to install

Touch Screen Display

Solar Powered Outdoor Sensors

Indoor/Outdoor Temperature & Humidity

Wind Speed and Direction

Wind Chill/Dew Point

12-24 hour weather forecast

Expandable: Accepts up to 3 additional sensors

Long-range sensors transmit up to 328-feet from the main unit

Large LCD touch screen

Illuminated with HiGlo electro-luminescent backlight

PC compatible (with optional RS-232 serial cable and software, not included)

Wall-mount or desktop display options

AC Adapter and backup batteries included for base unit (4 x AA)

4 x AAA batteries included for BTHR indoor sensor

Solar powered remote sensors use 2 x AA batteries for backup (not included)

Low sensitivity to accidental short-time changes in the concentration of pollutants is a basic characteristic of passive samplers. They provide information about the long-term contamination of the studied environmental compartment (for example air).

The air streams freely around a filter, membrane or other medium (sorbent), which captures pollutants during the period of passive air sampling. It is possible to use polyurethane foam (PUF) for persistent organic pollutant (POPs) sampling.

The relationship between the amount of POPs captured on PUF filter and their concentrations in sampled air has not been mathematically fully described yet. Due to this reason only empirical estimated information (for example based on parallel active and passive measurements) is available for results interpretation. Passive air sampling is a cheap screening method for a comparison of contamination on various sites or for verification of information obtained by active samplers.

In High Volume Sampler / Reparable Dust Sampler provision has been made for simultaneous sampling gaseous pollutants. Here the air is passed through suitable reagents that would absorb specific gases where gaseous pollutant like SO2, NOx, CL2, H2S, CS2, NH3 etc. are analyzed subsequently by simple wet chemistry method to determine the concentration of specific pollutant. During Gaseous sampling it often happens that ice does not last for full sampling period due to high ambient temperature. As a result temperature of chemical reagents increases and it reduces absorption efficiency of gaseous pollutant. During high temperature even chemical reagents taken for absorption evaporates with time. Thermoelectric Attachment SLE-TGA 143 has been designed to take care of such problems. It is provided with non wearing thermoelectrics / peltier system.

Built-In Thermoelectric Chiller

Automatic Condensate Drain Pump

  Built-In Printer

Draft & Differential Pressure Measurement

2 Channel Thermometer

CO Dilution Auto-Range

True NOx Measurements

Up to 9 Total Gas Sensors

NDIR Sensors

Gas Velocity with Pitot Tube

Rechargeable Battery

Heated Sample Line optional

Internal Memory

PC Software Package

SPECTRO’s Digital Velocity Monitor SLE – DVM174 is designed to determine velocity of air/flue gas in duct / pipe/chimney. In situations where determination of the rate of flow inside a chimney is of interest, this instrument can be used very conveniently to measure the total quantity/volume of emissions.

SPECTRO’s Digital Velocity Monitor SLE – DVM174 is provided with a Digital Pyrometer and Thermocouple for measurement of temperature. A digital pressure cell is incorporated in a hand held unit for the measurement of pressure in mm of H2O directly along with a pitot tube. The pitot tube has been provided with an extendable arm for easy transportation