3.1.2 User Interface

The LCD display is used to show detailed information about the status of the control system and the configuration parameters to the user. The keypad (Figure 3-3) is used to select the information displayed and to enter the configuration parameters, which are stored in the DVP-120 non-volatile memory. The keypad consists of the usual ten digit keys, the normal four direction keys, plus a MENU key that is used to access the configuration menu and a HUSH key that will silence the audible alarm indicators.

Figure 3-3 Keypad layout

In normal mode, no warnings or alarms that have not been silenced, the up and down cursor keys will scroll the display to any configured sensors’ status.

In normal mode, the left and right cursor keys will scroll through all relays’ status. When the left (or right) key is used to scroll to another relay the display will remove the underlining under the sensor number and underline the relay number, this indicates that the digit keys can be used to jump directly to a particular relay’s status. When the up or down key is again used the display will switch back to the digit keys jumping to a particular sensor.

The MENU key has three functions. First, when the system is presenting the normal display, pressing the MENU key will cause the system to shift to the Configuration Menu. The second function of the MENU key is to return to the next-higher menu level, e.g. from the sensor configuration menu to the system menu, or from the system menu out to normal mode. When the MENU key is used to return to normal mode, any changed configuration parameters are saved in the DVP-120’s non-volatile memory. The third function of the MENU key is to change the LCD contrast by holding the MENU key for five (5) seconds, at which point the LCD will prompt for further activities, see sections 4.4 for more detail..

The HUSH key is only used to silence the audible indicators (internal buzzer and possible external Horn and Strobe devices). Pressing and releasing the button will silence the internal buzzer. The HUSH button must be held for 3 seconds to silence the Horn and Strobe devices. See sections 3.1.4, 3.1.5 and 3.1.6 for more detail.

In normal mode, holding the zero key for three (3) seconds can be used to lock the keypad against accidental (or unauthorized) use. See section 4.5 for details.

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Macurco DVP-120 operating instructions User Interface, Keypad layout
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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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