STD Dust Monitors              Triboelectric Dust Monitors

The monitors are employed in a variety of industries from powder and bulk solids ranging from chemical and petrochemical to food and metal. Cement industry, pulp and paper, smelters, foundries, fertilisers, pharmaceutical industry are among our steady customers. With a Minimum Detection Limit of 0.015 mg/m³, our dust monitors are employed in power plants for emission- or stack-monitoring to comply with stringent environmental regulations for dust emissions. They are capable of detecting solid solid particles as small as 0.3µ. The monitors are installed downstream of cyclones and/or filters at pressures of up to 16 bar and temperatures of up to 700 C. Intrinsically safe models are available for hazardous environments. They are used to monitor filter performance and to alert when filters deteriorate or break.

Our monitors are cost-effective, rugged, easy to install and almost maintenance-free. With extensive testing at our own test facility and continuous product development, we are second to none. We strive to be a natural supplier of particle monitors, a reliable partner and preferably a market leader.

Particulate Monitoring By Utilising Triboelectric Effect

STD Dust Monitors: Cost-Effective Emission Monitoring

STD STD Dust Monitors utilise triboelectric effect. When solid particles impact an isolated sensor probe or pass near it, a small electrical charge is transferred from the particles to the probe. The charge, amplified and converted to a standard 4..20 mA signal, is proportional to the solids loading in a duct or pipe. The signal can be calibrated to give particle concentration in a gas or emission rate (e.g. mg/m³). Covering a wide measuring range (0.015 to 1000 000 mg/m³) with a particle size as small as 0.3µm, STD monitors are ideal for stack monitoring for environmental reasons. They are ideal instruments to detect filter deterioration and/or breakage. They can be used before and after a cyclone or a filter unit to measure filtration efficiency. Equipped with alarm relays they are employed in process industry for process control.

STD10a --- Features

Numeric display, water-proof wall mount design Sensor and preamplifier built into one IP65 enclosure and control unit up to 200 m away 4... 20 mA output and built-in alarm relay Sensor has a simple weld fitting to allow easy installation and removal High Temperature version available for applications STD10a-HT for up to 700 °C Eex version available for for hazardous applications

STD101a---- Features

Rugged industrial device, simple to install and set-up Compact design, sensor, preamplifier and control unit built into one IP65 enclosure 4... 20 mA output convertible to mg/m3 Unique air purge design (Dustpur) Built-in indication LED's and potentiometers for adjusting sensitivity, signal damping (response) and alarm level setting For high pressure applications STD101a-HT for up to 16 bar

STD201a---- Features

Cost-effective filter failure detection Compact design, sensor, preamplifier and control unit built into one IP65 enclosure Two built-in alarm relays Built-in indication LED's Potentiometers for adjustment of sensitivity, response and alarm level High pressure version STD201a-HP upto 16 bar available

DustLog 2.2

• Can be installed in PC or a lap top computer
• Data logging software package for multiple STD Dust Monitors with 4...20 mA output
• Windows compatible
• DDE-linkable and customised reports
• Easy to configure
• Adjustable settings
• 10 channels for analog data collection
• Easy calibration of each individual channel
• On-line selection of channels to be recorded
• Generation of text report of hourly averages
• Generation of text-mode log file for use in Excel^TM flow charts
• Generation of text-mode log file of triggered alarms
• Printing of graphics and daily averages from a log file
• Printing of average graphics from 1 sec to 7 days interval
• One digital output channel (optional)