ClinometerPack420 Jewell0 pages
Clinometer Pak 420
4-20mA Uniaxial Clinometer
The Clinometer Pak 420 is an economical
uniaxial clinometer with 4-20 mA output, a
rugged weatherproof enclosure and a
wide range of applications. Its internal
electrolytic
tilt sensor is gravity referenced and has no
mechanical moving parts to break or wear
out. You can install your clinometer
anywhere without complicated levers or
fixturing.
ECONOMICAL UNIAXIAL CLINOMETER
The Clinometer Pak 420 is current loop
powered, so measurements can be made
over long cables using an economical 2wire pair. As an added bonus, it measures
temperature using a built-in thermistor.
Some typical applications include:
• Measuring the angular position of
conveyers, booms, ramps and machinery
(wide-angle version)
• Determining antenna tilt for error
correction (high-gain version)
• Tracking pitch and roll of ships, buoys,
ROVs and towfish (standard and wideangle versions).
The Clinometer Pak 420 current signal is measured indirectly using a shunt resistor, R. Ohm’s
Law states that V1
– V2 = IR, where I is current in Amperes, R resistance in Ohms, and V1 and V2 the voltages
measured on opposite
sides of the shunt resistor. Temperature measurement using the onboard thermistor is
diagrammed below.
Jewell Instruments LLC, 850 Perimeter Road, Manchester, NH 03103
sales@jewellinstruments.com • www.jewellinstruments.com • Tel (800) 227-5955