System and Control Options

6.3.4Auto Calibration

The auto calibration feature is designed to allow compensation for the resistance tolerances in the two legs of the sensing wires.

As soon as cable is connected, the panel begins calculating the cable length. Initiating the auto calibration feature allows the user to mod- ify the distance to account for any discrepancies. Once the new dis- tance is entered, the panel adjusts for the required offset between the calculated value and the user value.

To initiate automatic calibration for ZN1:

From the Setup Zone 1 Menu, choose Auto Calibrate, as shown at right, and press Enter .

At the Change Maximum Length screen, you may change the maximum length of cable protecting this zone:

To begin calibration without changing this value, press Enter .

To change the value, press and hold one of the arrow keys ↑↓ to scroll through the numbers, then press Enter .

The next screen displays the progress of calibration.

6.3.5Set Up Sensitivity for Water Detection

Each zone may be set up with a sensitivity level at which water is detected.

The most sensitive setting is 25 µA—minimal water is required to trigger an alarm.

The least sensitive setting is 300 µA. At this setting, the cable will be submerged in water for a longer period before an alarm is trig- gered.

To change the setting:

From the Setup Zone 1 Menu, choose Water Detect, as shown at right, and press Enter .

The Water Detection Sensitivity screen displays the value for detection of water (in the example at right, 150 UA, where UA rep- resents µA or microAmps):

To change the value, press and hold one of the arrow keys ↑↓ to scroll through the numbers 25-300.

Press Enter .

Setup Zone 1 Menu

SETUP ZN1 ZONE 1 CONNECTED: Y LABEL: ZONE 1

↑↓ =NEXT =SELECT

UNITS: FT

>AUTO CALIBRATE WATER DETECT:150 UA CONTAMINATED:050 UA

Change Maximum Length

CHANGE MAX LENGTH

1000 FT

↑↓ =SELECT =ACCEPT

Auto Calibration Progress

THIS SCREEN WILL SHOW AUTO CALIBRATION TAKING PLACE

Setup Zone 1 Menu

SETUP ZN1 ZONE 1 CONNECTED: Y LABEL: ZONE 1

↑↓ =NEXT =SELECT

UNITS: FT

AUTO CALIBRATE

>WATER DETECT:150 UA CONTAMINATED:050 UA

Water Detection

Sensitivity

CHANGE SENSITIVITY

FOR WATER DETECT

150UA

↑↓ =SELECT

=END

27

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Emerson MC68HC16Z1 user manual Set Up Sensitivity for Water Detection, Auto Calibration, Change Maximum Length

MC68HC16Z1 specifications

The Emerson MC68HC16Z1 is a versatile microcontroller that combines power and efficiency, making it an ideal choice for various embedded applications. As part of the Motorola 68HC16 series, the MC68HC16Z1 is designed to deliver robust performance while offering extensive support for both simple and complex tasks. With its 16-bit architecture, this microcontroller is well-equipped to handle a range of functionalities, from industrial control systems to automation processes.

One of the main features of the MC68HC16Z1 is its high-performance 16-bit CPU, which operates at speeds up to 20 MHz. This allows for efficient data processing and execution of instructions, which is critical in time-sensitive applications. The microcontroller boasts a rich instruction set, including various addressing modes that enhance programming flexibility. This versatility enables developers to implement efficient algorithms tailored to their specific application needs.

Power management is another noteworthy characteristic of the MC68HC16Z1. The device supports low-power operation modes, which is essential for battery-powered applications or scenarios where energy consumption is a concern. With its capability to switch between different operational states, the microcontroller can significantly extend battery life while ensuring that performance is not compromised.

The MC68HC16Z1 also includes an integrated analog-to-digital converter (ADC) that allows for direct interaction with analog signals. This feature is particularly beneficial in applications that require sensor data acquisition. Additionally, the microcontroller provides various communication interfaces, including serial communication options like UART and SPI, facilitating seamless data transfer between devices.

In terms of memory, the MC68HC16Z1 supports a wide range of options, including both RAM and ROM, allowing for flexible storage solutions depending on the application requirements. The built-in programmability further allows for updates and modifications to the firmware, ensuring that the system can adapt to evolving project specifications.

Moreover, the microcontroller features an extensive array of I/O ports, making it capable of interfacing with various peripheral devices such as sensors, actuators, and displays. This extensive connectivity enhances its usability in a range of applications, from robotics to automotive systems.

In summary, the Emerson MC68HC16Z1 microcontroller stands out for its balanced blend of performance, low power consumption, and feature-rich design. Its 16-bit architecture, integrated ADC, versatile communication interfaces, and extensive memory options make it a go-to choice for developers looking to create effective and reliable embedded systems. Whether for industrial automation or consumer electronics, the MC68HC16Z1 continues to be a dependable and powerful component in the realm of microcontroller technology.