Installation Guide - Position Transducers
●
Retrofits - Field retrofits of a non-RoundAbout
™
cable guide to a position transducer with a different type of cable
guide are generally not possible. Factory retrofitting is generally required. An option is to use the 301225
RoundAbout
™
cable guide with mounting base (
).
●
Displacement Cable Size - The 301224 and 301225 RoundAbout
™
cable guides are only compatible with Ø0.018-
inch (Ø0.4572-mm) displacement cable.
●
Displacement Cable Installation - To install displacement cable to the 301225 RoundAbout
™
cable guide, first
remove one screw and one pulley from the cable guide. Insert the displacement cable and re-assemble the pulley
and screw using threadlocker as appropriate.
●
Maximum Displacement Reduction - If you are using the 301225 RoundAbout
™
cable guide, keep in mind that
the displacement cable stop will not go through the RoundAbout
™
cable guide. In addition, the maximum displacement
of a given position transducer will be reduced by approximately 1.5 inches (38.1 mm) to account for the portion of
the cable guide where the cable stop cannot travel.
12. Tips And Troubleshooting
How do I zero the potentiometer?
The zero point for the potentiometer is set by manually adjusting the cable extension to the desired point. Depending
on your application, this may be an iterative process. On position transducers with single-turn potentiometers
mounted with cam locks, the potentiometer zero point may also be set by mechanically rotating the potentiometer.
How do I convert the output from volts to a unit of displacement?
To convert from a voltage to a unit of displacement, simply divide the measure maximum range of the position
transducer by the voltage change over the measured maximum range. Then, multiply this number by the output voltage
to get the unit of displacement output. This calculation may, of course, be done manually or through your data
acquisition/recording system.
Figure 12
I am using a Model 160-1505 position transducer with a standard base and want the cable to exit straight down but
the standard base is in the way. Do you make a mounting base that allows this?
The standard and L bases can all be reversed to allow the cable to exit straight down (see Figure 13). No additional
bases are required.
Figure 13
Which resistance value should I order for the potentiometer of analog-output position transducers?
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