Manuals / Honeywell / Household Appliance / Smoke Alarm

Honeywell HA40 Fault / Alarm 1 / Alarm 2 / Alarm 3 Set-Up Menus, Configure Menu To Define Channel

Models: HA40

1 39
Download 39 pages 49.91 Kb
Page 14
Image 14

HA40 4-Channel Controller

2.2.3 Fault / Alarm 1 / Alarm 2 / Alarm 3 Set-Up Menus

Alarm 1, 2 and 3 have identical menus. The only difference between each is that A1 front panel LED indicators are yellow while A2 and A3 are red. Typical applications often have A1 set at a WARN level, A2 at a HIGH level and A3 at a higher SHUT DOWN level. However, it is important to understand there is no functional difference between A1, A2 and A3 (since their configuration menus are identical, only one is shown in Figure 2-19). The Fault menu is identical to A1, A2, A3 except Fault alarms are always low trips (alarm activates as input goes below the set point) and Fault alarms may not be set for latching operation.

Figure 2-3. Alarm/Fault Setup Menu

•Set Point is entered in engineering units and determines the value at which the alarm trips. For example, if a channel

monitors 0-50 ppm H2S and the desired alarm level is 10 ppm, the correct entry is 10.00. A one percent dead band prevents alarm chatter. This means after tripping an alarm the input must move at least 1% of full scale back through the setpoint for the alarm to auto reset.

•The ON Delay / OFF Delay entries allow ON and OFF time delays affecting how long the trip-point must be surpassed before an alarm event transition occurs. ON delays are limited to 10 seconds while OFF delays may be as long as 120 minutes. Delays are useful in many applications to prevent nuisance alarms and unwanted cycling into and out of alarm conditions.

•Low Trip is set for NO to increase alarms or YES to decrease alarms to determine if the alarm activates upon exceeding or falling below the set-point.

•Latching determines either manual or automatic alarm reset operation. YES requires a manual Alarm Reset to unlatch the alarm even though an alarm condition no longer exists. YES also causes this alarm’s common relay, front panel LED, and optional discrete relay to latch. NO allows all outputs for this alarm to automatically reset after the alarm condition clears.

Common alarm LED indicators on the left side of the front panel indicate the status of A1, A2 A3 alarms. The common Fault LED is on the lower right side of the front panel. Any new alarm event causes the associated LED to flash until an Alarm Reset occurs causing an acknowledged steady on condition. Operators should recognize new alarms by a flashing LED. Alarm Reset also acknowledges, or deactivates, audible devices driven by the AUDIBLE ALARM option connector J2 (see Figure 3.2)

2.2.4 Configure Menu To Define Channel

The next menu option, after the Alarm menu, is Configure. It allows setting Name and EUNIT 10 digit ASCII fields, defines the measurement range with ZERO & SPAN entries, number of Decimal Points of resolution the reading will have, and if the channel is Active.

Figure 2-4. Configure Menu to Define Channel

HA40 Technical Manual

2-4

Revision 1 (07/08)

Page 13 Page 15
Page 14
Image 14
Honeywell HA40 technical manual Fault / Alarm 1 / Alarm 2 / Alarm 3 Set-Up Menus, Configure Menu To Define Channel
Page 13 Page 15

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.