
6F8A0917
11.2Procedure for Communication with HHT
This section describes the HHT basic operations for communication between the flowmeter and HHT. For details, refer to the HHT instruction manual.
*Carrying out the following preparatory operations to a commercially available PDA (OS: Windows CE), the PDA can be used as a HHT.
Procedure | Operation |
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Prepare a | Install the AF900 application software to a |
| commercially available PDA (OS: Windows CE) main |
| unit. Then insert the serial interface card supplied |
| with AF900 to the card slot of the PDA. |
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Prepare a | Connect the HART interface cable and serial interface |
| card supplied with AF900 to each other. |
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Connect the HHT | Connect the alligator clips at the end of the HART |
| interface cable to the current output line of the |
| converter via a load resistor. |
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Start the HHT | Turn on the power supply of the PDA to start the |
| AF900 application software. |
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Preliminary communication | Execute [sensor communication]. The model name of |
| the connected sensor product is automatically |
| identified and the converter menu screen appears. |
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Check or change the data | Press the relevant parameter button and check or |
| change the desired data. |
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Exit the communication | When all of the operations are complete, press the |
| [Exist Application] in the top screen to turn off the |
| power supply of the PDA. |
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