Vaisala DMT132 - Manual (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 Cable 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.