HA40 4-Channel Controller

2.3.4 Analog Setup Menu

The system ANALOG SETUP menu allows setting the 12-bit A/D (analog to digital) counts and the 10-bit D/A (digital to analog) counts for each of the four channels. The live A/D counts value for the channel selected is also shown on the bottom of this screen.

The default setting for A/D counts is 800 for Min and 4000 for Max. This is based upon a 0-20mA input providing 0-4000 counts, or, 200 counts per mA input.

•A/D Min / Max Raw counts menu entries define the input counts value that cause Zero and Span readings as described in Input Measurement Range. The default settings for each channel are 800 to 4000 counts because the HA40 4-20mA input PCB has a 12-bit analog to digital converter that yields 200 counts per milliamp input. Standard 4-20mA inputs yield 800 counts at 4mA and 4000 counts at 20mA. However, if a special application required the Zero reading at 6mA input and the Span reading at 18mA input the correct A/D Min / Max Raw counts menu entries would become 1200 to 3600.00.

•D/A Min / Max Raw counts menu options define the optional (future) 4-20mA output PCB’s input. Ideally, 200 to 1000 yields a 4-20mA output but very slight modifications may be needed to provide precise 4mA and 20mA values for each channel.

2.3.5 Horn / Acknowledge Menu

J2 on the motherboard (shown in Figure 3.2) is the driver output for part # 1000-1892 optional 100dB piezo. Fault, Alarm1, Alarm 2, & Alarm 3 menu options (shown in Figure 2-12) allow programming of which alarms affect this piezo and whether by pulse or steady tones. The HA40 display PCB is also equipped with a small audible piezo that chirps when keys are pressed, providing an audible feedback to the operator. It also may be set to audibly indicate alarm conditions by entering ON into the Local Piezo menu item in Figure 2-12. This piezo will then mimic the optional 100dB horn.

Figure 2-11. Analog Setup Menu

HA40 Technical Manual

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Revision 1 (07/08)

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Honeywell HA40 technical manual Analog Setup Menu, Horn / Acknowledge Menu
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HA40 specifications

The Honeywell HA40 is an advanced air quality monitor that offers a multitude of features designed to provide users with accurate and real-time data regarding their indoor air conditions. As part of Honeywell’s commitment to improving the environments where people live and work, the HA40 stands out as an essential tool for continuous air quality assessment.

One of the main features of the Honeywell HA40 is its capability to measure a variety of air pollutants. It provides real-time readings of particulate matter (PM2.5 and PM10), volatile organic compounds (VOCs), carbon dioxide (CO2), and formaldehyde levels. This comprehensive monitoring allows users to understand their air quality better and take appropriate actions to improve it.

The HA40 is equipped with advanced sensor technology that enhances its accuracy and reliability. The device utilizes laser scattering methods to precisely detect particulate matter, which offers detailed information on the concentration of airborne particles. Additionally, its integrated VOC sensor leverages photoionization to deliver quick and exact results concerning the presence of harmful compounds in the air.

Another notable characteristic of the Honeywell HA40 is its user-friendly design. The device features a clear, intuitive display that presents data in an easily understandable format. Users can quickly assess air quality levels at a glance and receive alerts when pollutants exceed predefined thresholds. Furthermore, the HA40 is compact and portable, making it suitable for both home and office use.

Connectivity is another strong point of the Honeywell HA40. The device can be connected to a smartphone application, enabling users to monitor air quality remotely. This app provides additional functionalities such as trend analysis, historical data tracking, and personalized recommendations for improving indoor air quality.

Power efficiency is also a priority with the HA40, featuring a low-power design that extends battery life and reduces the frequency of recharging. This makes it convenient for users who wish to place the monitor in various locations without the hassle of constant maintenance.

In summary, the Honeywell HA40 represents a significant advancement in indoor air quality monitoring. With its accurate sensors, user-friendly interface, and connectivity options, it empowers users to maintain a healthier living and working environment.
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