e. Troubleshooting Flowchart - Quick Reference...

Second Visual Check

(Does Main Burner Ignite?)

Does

 

Is manual

 

 

knob on the Gas Valve

 

main burner

No

No

in the “ON”

light?

 

 

 

position?

 

 

 

 

Yes

 

Yes

 

Turn knob to “ON/OPEN” position.

Energize system and check for proper operation.

Go To

Third Visual

Check

Restore gas supply. Energize system and check for proper operation.

No

Is

gas available at the source?

Is

dryer Internal Gas Shut-Off Valve and

ALL External Gas Shut-Off

Valves in the open

position?

Yes

Turn manual knob on the Gas Valve to the “OFF” position.

Connect a manometer to the Gas Valve outlet pressure tap.

 

Turn

 

 

manual knob on

 

 

the Gas Valve to the

 

No

“ON” position.

Yes

 

Energize the system.

 

 

Is outlet pressure

 

 

detected?

 

No

Correct supply pressure. Energize system and check for proper operation.

No

Is outlet Water Column (W.C.)

pressure correct? Natural 3.5” - 4.0” W.C. (8.7 mb - 9.9 mb)

L.P. 10.5” - 11.0” W.C.

(26.1 mb - 27.4 mb)

Yes

Energize

system. Is 24 VAC present across leads at the Gas

Valve?

Yes

Replace the Gas Valve. Energize the system and check for proper operation.

 

 

 

With

 

 

 

 

 

 

system energized,

 

 

 

No

 

 

is 24 VAC present

 

 

 

across the “MV” and “GND”

 

 

 

 

 

 

 

 

 

 

terminals of the DSI

 

 

 

 

 

 

Module?

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace High

 

 

 

 

Replace

 

 

 

Voltage (HV)

 

 

 

DSI Module

 

 

 

leads

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Energize system

 

 

 

 

 

 

 

 

and check for

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

proper operation.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

Check Spark Electrode for proper gap and insure that the spark is in the path of the gas flow...

Refer To Service Section.

Make the necessary corrections. Energize system and

check for proper operation.

26

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Image 30
ADC AD-200 service manual Second Visual Check

AD-200 specifications

The ADC AD-200 is a high-performance analog-to-digital converter designed to meet the needs of a wide range of applications including industrial automation, instrumentation, medical devices, and consumer electronics. This converter is renowned for its combination of speed, precision, and reliability.

One of the standout features of the ADC AD-200 is its exceptional resolution. Offering up to 24 bits of resolution, it provides an outstanding level of detail and accuracy in signal conversion. This high resolution makes it ideal for applications where precision is paramount, such as in audio processing and sensitive measurements in scientific research.

The AD-200 operates at a maximum sampling rate of 1 Msps (mega-samples per second), allowing it to effectively capture fast-changing signals. This speed ensures that the converter can handle dynamic input signals without missing critical data points. Additionally, the device employs a pipelined architecture, which helps to maintain high throughput while keeping latency low—an essential characteristic for real-time applications.

Another critical aspect of the AD-200 is its low input noise and distortion levels. With a total harmonic distortion (THD) of less than 0.01%, the converter maintains signal integrity even when processing high-frequency signals. This feature is crucial in audio and instrumentation applications where signal clarity and fidelity are necessary.

The ADC AD-200 is equipped with advanced digital signal processing (DSP) capabilities, allowing users to perform filtering, averaging, and other signal conditioning tasks on the incoming data stream. This built-in processing capability means users can reduce the load on external processors, streamlining system designs and improving overall efficiency.

The device supports various input voltage ranges, which makes it versatile for multiple applications. It is compatible with single-ended and differential input configurations, providing flexibility for different circuit designs and requirements.

Connectivity features include both serial and parallel interfaces, offering easy integration into various systems. The ADC also comes with a robust software development kit (SDK) that provides necessary drivers and support to facilitate quicker implementation and system optimization.

In summary, the ADC AD-200 is a versatile, high-performance analog-to-digital converter marked by its high resolution, fast sampling rate, low noise levels, integrated DSP capabilities, and flexible connectivity options. These features make it a preferred choice for engineers and developers aiming for excellence in signal processing tasks across diverse industries.