Vaisala HMDW110 Serie Guide Rapide page 14

HMDW110 Power Supply Requirements
HMDW110 series transmitters are designed for a supply voltage range of
10 ... 28 VDC. The minimum required voltage depends on the loop resistance
(0 ... 600 Ω) as shown below.
Connecting to the Service Port
n
n
OR
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The service port is intended for a temporary connection to the transmitter. You
can use it for configuration, calibration, and troubleshooting using a computer or
a compatible hand-held meter that utilizes the MI70 hand-held indicator (for
example, HM70).
The RS-485 line of the service port is shared with the connection to RDP100
display panel; the M8 service port connector is just an additional connector for
easier access. Before plugging in a connection cable to the service port,
perform the following steps:
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Computer with
Windows operating system
o
Terminal application
o
Free USB port
o
Driver for Vaisala USB cable installed
o
Vaisala USB cable for computer connection (219690)
Vaisala MI70 Hand-Held Indicator
MI70 connection cable (219980SP)