Yokogawa FieldMate - Manual (Page 284)

<I ISA100 device configuration>
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IM 01R01A01-01E 9th Edition : May 31, 2013-00
I-5-2 Connection Example
When communicating with the device, there is a need to connect the infrared adapter to
an USB port on the PC, and to move the infrared adapter and infrared receiving part of
the wireless device close together, facing each other. In the case of Yokogawa’s wireless
device, face the infrared adapter to the LCD display window of the device.
The communication range between the infrared adapter and wireless device should be
within the distance indicated in the following table.
I050201E.ai
Infrared Adapter
Les
s th
an 30cm
Figure I-5-1
Table I-5-2 Recommended communication distance
Item Communication Distance
Recommended distance 20 cm or less
Maximum distance 30 cm