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PPMonitor Wall Unit (Discontinued)
 

A PC controlled Indoor Air Quality (IAQ) Real Time Monitoring System allowing the networking of several monitoring units, which can all simultaneously measure up to six different IAQ parameters including formaldehyde, carbon dioxide and carbon monoxide. Each individual unit can be set to monitor at regular intervals over a set period of time using a single PC and the data from all the units can be displayed graphically.

The system has been designed to give a visual representation of indoor air quality in buildings, as part of the buildings management standards in relation to conditions such as Sick Building Syndrome. Since a great number of units can be networked, the system can show precise changes in concentration of selected air quality parameters in various locations over time.

The system can be used to profile all the primary and some of the secondary IAQ parameters, and by integrating it with the building's own management system, air quality level signals from the real time monitoring system can be used to control the operation of an air-conditioning system

 

 

 

Using state of the art gas sensing, automatic sampling, data logging, digital technology and information technology, IAQ profiling can be accurate, efficient and therefore cost effective. This system has a dual environmental benefit, firstly by immediate warning of over exposure to harmful toxic gases to the public / workers, and secondly to avoid the waste of energy and resources due to better control of the air conditioning system.

 

Technical Specification

 

Networking

Network supported by CAN protocol and controlled by proprietary controlling station (Station Zero). Max distance Network 2.5 Km

Station Zero

Proprietary Controlling Station, 5v Dc via external adaptor. 3 CAN channels for networking to monitoring units and 1 RS232 output to PC.

Monitoring Unit

Rigid Grey Plastic Enclosure with Clear hinged Lid and latch. 180mm wide x 160 long 105mm deep.

Power 15v DC via external dc adaptor with 2.5mm diameter jack plug

 

Sensors

 

 

Formaldehyde

 

Method

Electrochemical (manufactured by PPM Technology)

Range

0-10ppm as standard, extended range available on request.

Resolution 0.01ppm
Repeatability 2%
Accuracy

94% of all instruments readings meet the NIOSH criteria for an acceptable method at test concentrations of 0.3ppm of formaldehyde.

Response time 60s
Expected lifetime >1 year
Output Serial output via HtV

Temperature & Humidity Module

 

Method

Electrochemical (manufactured by PPM Technology)

Range

0-10ppm as standard, extended range available on request.

Resolution 0.01ppm
Repeatability 2%
Accuracy

94% of all instruments readings meet the NIOSH criteria for an acceptable method at test concentrations of 0.3ppm of formaldehyde.

Response time 60s
Expected lifetime >1 year
Output Serial output via HtV

Carbon Dioxide

 

Method Non Dispersive Infrared (NDIR) gold plated optics, diffusive sampling with patented ABC Logic™ Self Calibration Algorithm
Range 0-5000ppm
Resolution

1ppm

Carbon Monoxide

 

Method

Electrochemical

Range

0 to 100ppm

Resolution 0.1ppm
Response time 30s from 0-400ppm CO
Expected lifetime >2 years

Nitrogen Dioxide

 

Method

Electrochemical

Range

0 to 10ppm

Resolution 0.01ppm
Response time <60s from 0-10ppm NO 2
Expected lifetime >2 years

* Other sensor options are available, inlcuding VOC's and Ozone.

 

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