K-Patents PR-03 - Manual (Page 33)

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4 Accessory units 27
Indicating
transmitter
Indicating
transmitter
8-14
8-14
8-14
8-14
8-14 8-14
A
A
B
B
External output unit
External output unit
Relay unit
120
Ohm
8 9
PR-8011
Indicating
transmitter
8-14 8-14
A B
External output unit
120
Ohm
8 9
-WR
PR-8011
PR-8011
PR-8011
Figure 4.10 Connecting External output unit
Important: Before connecting the Output unit with your refractometer system, power off your system. Then
open the IT-R’s enclosure and display panel to access the processor card.
Connect the numbered leads of the free cable end with terminals with the same numbers (8-14) on the
serial bus on the Indicating transmitter’s processor card (if there’s an earlier Relay unit connection, move
the Relay unit’s interconnecting cable to the Output unit’s circuit card, serial bus B, and then connect the
Output unit with the IT-R).