Cannon Instrument CMRV-4500 - Manual (Page 123)

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CANNON ® Mini-Rotary Viscometer CMRV-4500 Instruction & Operation Manual
Version 1.1e—October, 2011 • CANNON ® Instrument Company
2139 High Tech Road • State College, PA • 16803 • USA
CHAPTER
D
APPENDIX D —
MULTI-UNIT CONFIGURATION
Introduction
The CMRV 4000 Series instrument have been designed to permit multi-
unit configurations of up to four CMRV units. Configuration is accom-
plished via a “daisy-chain” technique using RS-485 connections.
A multi-unit interface kit containing all
required items for multi-unit configura-
tion is available from
CANNON ® (Catalogue #
9728-R40 for 120V units;
#9728-R45 for 240V
units).
Placement of multiple units The practical
“hands-on”
realities of
viscosity and
yield stress
testing
suggest
orientation of
CMRV units
in close
proximity
with the
computer
controlling
the testing. Appropriate cables
(8' lengths) are provided with the interface kit for this purpose.
Procedure
Using the interface kit provided by CANNON ® , complete the multi-unit
configuration as follows:
1. Make sure the power is switched off to the computer and all instru-
ments to be configured.
2. Locate the RS-232 to RS-485 converter provided with the interface
kit.