Penny & Giles • Accurate measurement of spool valve position • Hall-effect, non-contacting sensing • Choice of output polarities • AMP or Deutsch connector options • Flying-lead option Modern day safety directives for machines, including on-and off-highway vehicles, require that correct hydraulic valve operation is assured. This means that spool valves often need to be fitted with sensors that can measure the actual valve position and feed this information back to the machine's controlling electronics, which can then determine if the valve is in a safe position for the intended operation. Traditionally, these small-stroke linear sensors have been based around inductive technology but a more cost-effective approach is to use Hall-effect sensing, which is also non-contacting so can achieve equal levels of reliability. The VPT351 can provide accurate, positional measurement over a span of 10-25mm and is designed specifically for the monitoring of hydraulic valves. The transducer can operate from either a 5V supply or an unregulated supply in the range of 9-32V, so making it suitable for vehicle applications. A choice of output types is available: analog voltage in two spans, 0.5-4.5V or 0.2-4.8V; 4-20mA current loop; or one of three PWM frequencies. Each of the output types can have its full span set to correspond to the selected measurement range, while the polarity of the output is also configurable. The sensor and associated electronics are also shielded against electromagnetic disturbances. Mounting to the valve block is via a standard M18 thread and an O-ring is fitted to ensure reliable sealing at operating pressures up to 420bar (5880psi), while being able to withstand periods of pressure as high as 600bar (8400psi). Connection options are over-molded, industry-standard AMP Superseal or Deutsch DT04 series connectors, or simple flying leads for customer termination. Dependent on the type of connector used, sealing as high as IP69k can be achieved.

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Description Analog voltage: 10-90% of 5V supply or 0.5-4.5V of 9-32V supply Current Output: 4-20mA Analog voltage: 4-96% of 5V supply or 0.2-4.8V of 9-32V supply

1 Rising with shaft extension Falling with shaft extension ELECTRICAL STROKE SHAFT MtCHANICAL NULL POSITION

STAINLESS STEEL ■’RLSSURL TUBE

Mating Part No: 282088-X (plug) & 183025-1 (pins) Function +V supply 5V Output Supply GND 4-20mA output Deutsch DT04 (C2) Deutsch DT04 4P-CE02 with gold contact 0460-202-1631 Mating Part No: DT06-4S-**** (plug) & 0462-201-1631 (pins) Function +V supply 5V Output Supply GND 4-20mA output

MEASUREMENT RANGE SUPPLY VOLTAGE SUPPLY CURRENT SUPPLY REVERSE POLARITY PROTECTION SHORT-CIRCUIT PROTECTION TO GND SHORT-CIRCUIT PROTECTION TO SUPPLY OVER-VOLTAGE PROTECTION POWER-ON SETTLEMENT RESOLUTION LINEARITY (ABSOLUTE) < 25mA (voltage/PWM output), < 50mA (current output) Voltage and PWM output options only Yes (when used with 5V supply only for voltage/PWM outputs) Up to 36Vdc (-40°C to +60°C) TOTAL ERROR BAND < ±2.2%FS max (-25°C to +85°C), < ±3.2%FS max (-25°C to +115°C) ELECTRICAL RESPONSE TIME < 3ms

VOLTAGE OUTPUTS OUTPUT RANGE A1 (5Vdc SUPPLY) OUTPUT RANGE A1 (9-32Vdc SUPPLY) MONOTONIC RANGE OUTPUT RANGE A5 (5Vdc SUPPLY) OUTPUT RANGE A5 (9-32Vdc SUPPLY) MONOTONIC RANGE 10-90% ±1% of Vsupply over measurement range 0-5-4.5V ±3% absolute over measurement range 5%/0.25V to 95%/4.75V nominal 4-96% ±1% of Vsupply over measurement range 0.2-4.8V ±3% absolute over measurement range 2%/0.1V to 98%/4.9V nominal LOAD RESISTANCE 10k0 min. (resistive to GND)

DUTY CYCLE 10-90% over measurement range MONOTONIC RANGE LOAD RESISTANCE RISE/FALL TIME

CURRENT OUTPUTS OUTPUT RANGE 4-20mA over measurement range MONOTONIC RANGE OUTPUT LOAD RESIDUAL RIPPLE SUPPLY VOLTAGE <5% Current output law example OUTPUT NOISE

MECHANICAL MECHANICAL RANGE MAXIMUM OPERATING SPEED 10m/s (shaft response time) SPRING FORCE ENVIRONMENTAL OPERATING TEMPERATURE RANGE STORAGE TEMPERATURE RANGE IP68, IP69K (manufacturer’s ratings apply to connectors) 1m drop onto concrete 10 million cycles (spring life) ELECTROMAGNETIC INTERFERENCE EN 61000-4-3:1999 80-1000MHz & 1.4-2.7GHz Voltage/PWM output to 100V/m Current output to 75V/m SALT SPRAY IMPORTANT INFORMATION Whilst Curtiss-Wright Industrial Division - Penny & Giles has designed this sensor to meet a range of applications it is the responsibility of the customer to ensure it meets...