7ML19985FC03 HydroRanger 200 – INSTRUCTION MANUAL Page 247
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Appendix F: Upgrading
Connecting a transducer with RG62 coaxial extension cable
If you are replacing an older Siemens Milltronics Ultrasonic Level Controller with a new
HydroRanger 200 where an RG62 coaxial extension is fitted and you are unable to replace
the extension with a new cable, please refer to connection diagram below. Please note
that the noise immunity performance will be similar to our older model ultrasonic level
controllers if you use coaxial cable.
Existing installation
RG62 coaxial cable has been used to make the extension. The level controller might be a
MultiRanger Plus, HydroRanger, HydroRanger Plus or one of our other level controllers.
HydroRanger 200 Installation (for retrofitting HydroRanger Installations)
Connect with a 0.1µF (100v or greater) capacitor (included with HydroRanger 200)
between the shield and negative terminals. Connect centre core of the coaxial to the
positive terminal and the screen to the negative terminal.
Transducer
Transducer
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