3.3.7 Configure Zones Submenu

The DVP-120 ventilation control can support up to three zones. The zone functionality makes the DVP-120 very flexible. For example, each zone can be configured to monitor a separate set of 4 sensors and control a single relay.

Another control scheme uses one zone to monitor all sensors and turn one relay on at a relatively low gas concentration. A second zone monitors the same sensors and turns on a second relay if the gas concentration reaches a higher level. The third zone can also monitor the same relays turning the last relay on as a signaling device to a live monitor station, as well as turning on the external horn and strobe, under the assumption that the ventilation system is not working.

In addition to controlling the relays based on the gas concentration, each zone can have a timed function, e.g. turn on low volume ventilation fans at 7:00 AM and turn them off at 8:00 PM.

3.3.7.1 Zone Controls

Z o n e 1 C o n t r o l s

R 1 R 2 R 3 H 4 S 5

Figure 3-41 Zone Controls

This display example shows that Zone 1 is configured to control all of the relays plus the horn and the strobe. Each of the relays, the horn and the strobe can be removed from (or added to) the zones control by pressing the indicated digit key. By default, all three zones are configured not to control any devices. When a new panel is first powered up this display will not show the digits, only the underlined positions.

The digit controls are:

–1 Relay 1 added/removed form the zone’s control

–2 Relay 2 added/removed form the zone’s control

–3 Relay 3 added/removed form the zone’s control

–4 Horn added/removed form the zone’s control

–5 Strobe added/removed form the zone’s control

When controlled by a zone the default horn pattern is the Triple Tap pattern, see 3.3.8.7 and the strobe will turn on continuously when a zone is controlling them.

Each zone can have up to three control groups defined. Each group either monitors a sensor type or implements a timer function.

3.3.7.2 Zone Group Mode

Z 1

G r o u p 1

N O 2

S e n s o r T y p e : 2

 

Figure 3-42 Zone Group Type

This display example shows that group 1 in zone 1 will be monitoring Nitrogen Dioxide sensors. The valid Modes are:

– 0 Timed

–1 Carbon Monoxide (CO)

–2 Nitrogen Dioxide (NO2)

–3 Combustible (EX)

Timed mode turns the zone’s outputs on at the START TIME if the current day is a weekday (or a weekend) and turns them off at the next occurrence of STOP TIME. The other three modes turn the outputs on if the gas concentration indicated by that type of sensor is at or above the Rising Trip Point and turns the outputs off if the concentration is less than or equal to the Falling Trip Point.

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Macurco DVP-120 operating instructions N e 1 C o n t r o l s R 2 R 3 H 4 S, O u p N s o r T y p e, Configure Zones Submenu
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DVP-120 specifications

The Macurco DVP-120 is an advanced gas detection sensor that is designed for various commercial and industrial applications. It provides real-time monitoring of hazardous gases, ensuring safety in environments where gas leaks can pose significant risks. The device is built with high-precision technology, allowing for accurate detection of gases such as carbon monoxide, methane, propane, and others.

One of the standout features of the DVP-120 is its dual-channel sensing capabilities. This allows the unit to simultaneously monitor two different gas types, which significantly enhances its versatility in diverse settings. Users can customize the device to target specific gases relevant to their operations, making it a highly adaptable tool for a variety of workplaces.

The DVP-120 utilizes state-of-the-art electrochemical sensors that deliver reliable and fast response times, allowing businesses to act quickly in the event of a gas leak. These sensors are known for their long lifespan and low maintenance requirements, thus reducing the total cost of ownership over time. Additionally, the sensor head is designed for easy replacement, further simplifying maintenance for users.

Another notable characteristic of the DVP-120 is its user-friendly interface. The device features an intuitive LCD display that provides clear readings, making it easy for operators to monitor gas levels at a glance. The display also includes alarm indicators, ensuring that users are alerted promptly in an emergency situation. The alarms can be configured with different sound levels and visual alerts to suit the needs of the environment.

Moreover, the Macurco DVP-120 is equipped with advanced connectivity options, including wired and wireless communication capabilities. This allows the device to be integrated into existing monitoring systems or networks, ensuring seamless operation alongside other safety equipment.

In terms of durability, the DVP-120 is built to withstand harsh environmental conditions. Its rugged housing is resistant to dust and moisture, making it suitable for use in industrial settings where exposure to various elements is a concern.

Overall, the Macurco DVP-120 is a comprehensive solution for gas detection and monitoring. With its combination of advanced sensing technology, user-friendly design, and robust construction, it stands out as an essential tool for ensuring the safety and efficiency of operations across various industries.
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