Vaisala HUMICAP DMT132 Guide de l'utilisateur télécharger pdf (Page 35)

Chapter 4 ________________________________________________________________ Operation

VAISALA _______________________________________________________________________ 33

CHAPTER 4

OPERATION

This chapter contains information that is needed to operate the DMT132.

Getting Started

When the transmitter is connected to power supply, there is a delay of

three seconds as the transmitter starts up and the analog output stabilizes.

If the LED indicator plug is connected, it will blink once at start-up.

Serial Communication

Connecting to the Serial Interface

The DMT132 can be connected to a PC using the RS-485 line on

Port II. It is recommended that you use the USB service cable (Vaisala

order code 219690) for the connection, since the cable also provides the

operating power from the USB port.

NOTE

The RS-485 line is intended for service use only.

If you have not used the USB service cable before, install the driver that

came with the cable. Refer to section Installing the Driver for the USB

Service Cab

e below

for detailed instructions.

Installing the Driver for the USB Service Cable

Before taking the USB service cable into use, you must install the

provided USB driver on your PC. When installing the driver, you must

acknowledge any security prompts that may appear. The driver is

compatible with Windows 2000, Windows XP, Windows Server 2003,

and Windows Vista.

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Vaisala HUMICAP DMT132 Guide de l'utilisateur Page 35