Aeroqual Dust Sentry Pro

Questions and Answers

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Robert StanleyAug 13, 2025
What to do if PM 2.5 is greater than PM 10.0 in Aeroqual Dust Sentry Pro?
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  Laura MckinneyAug 13, 2025
  If the Aeroqual Measuring Instruments show that PM 2.5 is greater than PM 10.0, it could be due to several reasons: * The cyclones might be fitted on the wrong side, in which case you should swap them to the correct side. * The auto zero calibration might be failing on the PM10.0, so check the baseline calibration of PM10. * An incorrect gain might be applied, so check the gain on the module. * There could be a leak in the flow system, so check for leaks.
E
Erik MilesAug 17, 2025
Why are gas readings significantly different than expected on my Aeroqual?
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  Jennifer HoffmanAug 17, 2025
  Significantly different than expected gas readings on your Aeroqual device can occur if an incorrect gain or offset has been applied, so check that the correct gain has been applied correctly. It may also happen if an incorrect calibration was performed, so redo the calibration or identify the error and correct it.
L
Lisa CarterAug 20, 2025
What to do if I get negative readings on Aeroqual Measuring Instruments?
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  Tracey DavisAug 20, 2025
  If you are getting negative readings on your Aeroqual Measuring Instruments, check the baseline calibration of PM10.0, as the auto zero calibration might be failing.
C
Caleb MatthewsAug 25, 2025
Why are the gas readings noisy or unstable on my Aeroqual?
- S
  Sara BurnsAug 25, 2025
  Noisy or unstable gas readings on your Aeroqual device may be caused by a flow leak or incorrect flow. Another possible cause is that the module is aging, in which case you should replace the module.
S
Susan SalinasAug 28, 2025
What to do if I am unable to see the WIFI network broadcast by the Aeroqual monitor?
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  Ross EdwardsAug 28, 2025
  If you cannot see the WIFI network broadcast by the Aeroqual monitor, it is most likely because the WIFI setting is set to “Client Mode” and is not broadcasting. To fix this, connect to the monitor through the WIFI LAN and then reset the WIFI mode to 'Access Point'. Alternatively, the monitor can be reset to factory communication settings by using the USB reset.
V
Victoria BrooksSep 1, 2025
How to troubleshoot sensor offline on Aeroqual Dust Sentry Pro?
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  Roger RogersSep 1, 2025
  A sensor offline error on Aeroqual Measuring Instruments is usually caused by either a loose power connection or a loose communications connection. Check that the module connections are secure.
D
David SmithSep 4, 2025
Why are the readings lower than expected on Aeroqual Measuring Instruments?
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  Justin WallsSep 4, 2025
  If the readings on your Aeroqual Measuring Instruments are lower than expected, it could be due to several reasons: * The flow rate might be too low, so check the flow rate and change the pump if required. * The optics might be dirty, so have the optical module serviced. * The laser might have failed, so have the optical module serviced. * The sample filters might be dirty, so change the filter.
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Raymond BenitezSep 8, 2025
What causes negative readings in Aeroqual Dust Sentry Pro?
- J
  Jason BurtonSep 8, 2025
  Negative readings on your Aeroqual device can be caused by flow leak or incorrect flow, dirty inlet gas filter (so change the filter) or incorrect zero calibration (so perform zero calibration).

Summary

Introduction to Dust Sentry;Pro;AQS

Overview of Monitors

Describes the purpose and features of the Dust Sentry/Pro/AQS monitors.

Product Comparison

Compares features, particulate, and gas measurement capabilities of different models.

Product Applications

Details specific use cases for Dust Sentry, Dust Sentry Pro, and AQS 1.

Key Specifications

Outlines technical specifications, dimensions, and performance metrics for each model.

Quick Setup Guide

Pre-Installation Checklist

Steps to prepare before the monitor arrives on-site.

Monitor Installation Process

Covers unpacking, mounting, connecting, and initial setup procedures.

Assembly and Power Requirements

Details physical assembly steps and electrical power needs.

Wiring Auxiliary Sensors

Instructions for connecting external sensors to the AUX module.

Mounting and Site Positioning

Mounting Guidelines

Procedures for securely mounting the monitor on poles or walls.

Inlet Height and Interference

Guidance on optimal inlet placement to avoid interference and ensure accurate data.

Site Safety Precautions

Safety considerations for monitor placement and operation on site.

Connectivity Options

Aeroqual Connect Setup

Connecting to the monitor locally via Wi-Fi or LAN for initial setup.

Aeroqual Cloud Setup

Connecting to the cloud for remote access, data management, and support.

Communication Settings Configuration

Configuring network, Wi-Fi, and Ethernet settings for data transfer.

Resetting Communication Settings

Procedure to restore factory default network settings.

Monitor Operation

Manage Data

Viewing, downloading, and exporting collected air quality data.

Calibration and Service Functions

Accessing service mode and adjusting calibration parameters.

Configure Instrument Settings

Customizing monitor parameters, units, and alerts.

Diagnostics and Advanced Features

Accessing real-time status, module settings, and troubleshooting tools.

Administration and User Management

Managing user access, profiles, and security settings.

Service & Maintenance

Service Frequency Guidelines

Recommended intervals for routine maintenance activities.

Flow Meters and Measurement

Understanding and using flow meters for accurate rate measurement.

Maintenance Procedures

Step-by-step guides for common service tasks like filter changes and leak checks.

Scheduled Maintenance Plan

A table summarizing service activities and their recommended frequencies.

Calibration Procedures

Gas Module Calibration

Detailed steps for calibrating gas sensors using zero and span gases.

Particle Monitor Calibration

Field calibration methods for particulate matter monitors using reference data.

Troubleshooting Guide

Common Issues and Solutions

Table listing common symptoms, causes, and solutions for monitor problems.

Appendix

Gas Module Design

Technical details on the design and specifications of gas sensor modules.

Particulate Matter Module Design

Explanation of the design differences between Particle Monitor and Particle Profiler.

Mains Wiring Color Guide

Standard color coding for AC power connections.

Calibration Records Forms

Templates for recording calibration details, equipment, and gas cylinder information.