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These versatile, high-precision, biaxial tiltmeters are well suited for a wide variety of measurement

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zClinometer 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. The Clinometer Pak 420 is current loop powered, so measurements can be made over long cables using an economical 2-wire 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 wide-angle versions). Call us today for additional details or to place an order! High-Gain Version Standard Version Wide-Angle Version ANGULAR RANGE ±10 degrees (20 degree span) ±25 degrees (50 degree span) ±50 degrees* (100 deg. span) SCALE FACTOR 1.25 °/ mA typical 3.125 °/ mA typical 6.25 °/ mA typical LINEARITY 1% of full span 1% of half span, 2.5% of full span 1.2% of half span, 7.5% of full span RESOLUTION 0.005 degree 0.01 degree 0.02 degree REPEATABILITY 0.01 degree. 0.02 degree < 0.04 degree HYSTERESIS < 0.02 degree < 0.02 degree TILT OUTPUT 4-20 mA ...
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Clinometer Pak 420420mA Uniaxial ClinometerTheClinometer Pak 420is 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.TheClinometer Pak 420is current loop powered, so measurements can be made over long cables using an economical 2wire 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 wideangle versions). Call us today for additional details or to place an order!
HighGain VersionStandard VersionWideAngle Version ANGULAR RANGE±10 degrees (20 degree span)±25 degrees (50 degree span)±50 degrees* (100 deg. span) SCALE FACTOR1.25°3.125/ mA typical°6.25/ mA typical°/ mA typical LINEARITY1.2% of half span, 7.5% of full span1% of full span1% of half span, 2.5% of full span RESOLUTION0.02 degree0.005 degree0.01 degree REPEATABILITY< 0.04 degree0.02 degree0.01 degree. HYSTERESIS< 0.04 degree< 0.02 degree< 0.02 degree TILT OUTPUT420 mA twowire current loop t/TTIME CONSTANT,Twhere150 msec; output is proportional to 1  et= time in seconds NATURAL FREQUENCYavailable with viscous sensor to damp vibrations10 Hz; o o TEMPERATURE COEF.Span: +0.03%/C, Zero: 1020 arc sec/C typical (0.02 Ampere xR+ 10 VDC) <Vs< 29 VDC POWER REQUIREMENT,VS whereRis the resistance of the shunt resistor and loop wiring in Ohms TEMPERATURE OUTPUTTemperature is measured with a 2500 Ohm thermistor, 50 to +150°C range ENVIRONMENTAL40°to +85°C operating and storage ENCLOSURE & MOUNTINGRemove lid to access four mounting holes.Painted, diecast aluminum box, 120 x 80 x 60 mm. CABLE3m (10 ft), 5conductor + one overall shield, PVC jacket, tinned ends WEIGHT1 lb (0.4 kg)  *greater range availableUseful Accessories & UpgradesPart No. Clinometer Pak 420Order Numbers Vertical mounting bracket81439  TransverseTilt LongitudinalTilt84051Horizontal mounting plate High Gain9801601 9801604Additional cable, specify length70369 Standard 98016029801605 6pininline receptacle62204 Wide Angle9801603 98016066socket inline plug62202  Criticallydamped viscous sensor VISCDAMP to filter vibrations
1336 Brommer Street, Santa Cruz, CA 95062 USATel.(831) 4622801, Fax (831) 4624418 applied@geomechanics.comz www.geomechanics.com L00256A,©2005 Applied Geomechanics Inc.
Clinometer Pak 420
LABEL INDICATES AXIS CONFIGURATION
LONGITUDINAL CONFIGURATION
DIMENSIONS: mm(in.)
TRANSVERSE CONFIGURATION
 Clinometer is available with either longitudinal or transverse tilt configuration.
Clinometer Pak 420:Wire Color Code
Function Loop Power (Vsupply) Loop Return (Ground) Temperature Excitation (up to 12V) Temperature Out Temperature Return Drain Wire (Shield)
Wire Color Red Black Blue Yellow White Bare (Clear)
1336 Brommer Street, Santa Cruz, CA 95062 USATel.(831) 4622801, Fax (831) 4624418 applied@geomechanics.comz www.geomechanics.com L00256A,©2005 Applied Geomechanics Inc.
Clinometer Pak 420
TheClinometer Pak 420current signal is measured indirectly using a shunt resistor,R. Ohm’sLaw states that V1– V2= IR, whereIis current in Amperes,Rresistance in Ohms, andV1andV2the voltages measured on opposite sides of the shunt resistor.Temperature measurement using the onboard thermistor is diagrammed below.
70000
60000
50000
40000 O H M 30000 S 20000
10000
0 60
Resistance vs. Temperature for 2500 Ohm Thermistor with B Type Curve (U.S. Sensors LR252B1K)
40 200 2040 60 Degrees Celsius T = 1/[A + B Ln(RT3) + C Ln(RT3)^3 + D Ln(RT3)^5] – 273.15 where T is in degrees Celsius and RT3 = thermistor resistance. A = 7.34862E04 B = 3.38205E04 C = 1.30862E07 D = 1.21751E09
1336 Brommer Street, Santa Cruz, CA 95062 USATel.(831) 4622801, Fax (831) 4624418 applied@geomechanics.comz www.geomechanics.com L00256A,©2005 Applied Geomechanics Inc.
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Clinometer Pak 420
Mounting holes are accessed by removing lid of clinometer. Use 832 or 4 mm screws.
For mounting on vertical surfaces: Order the 81439 Mounting Bracket Assembly, which includes complete hardware. For mounting on horizontal surfaces: Screw the  clinometerdirectly to the surface, or order the 84051  MountingPlate Assembly, which includes complete  hardware. 1336 Brommer Street, Santa Cruz, CA 95062 USATel.(831) 4622801, Fax (831) 4624418 applied@geomechanics.comz www.geomechanics.com L00256A,©2005 Applied Geomechanics Inc.