WPS500X 500 psi / 34.5 bar Automotive Pressure Transducer User’s Guide This accessory complies with the following standards: Electromagnetic Compatibility (EMC) Directive 2004/108/EC FCC Part 15 Pressure Equipment Directive 97/23/EC Article 3.
WPS500X User’s Guide Pico Technology 1. Safety terms and symbols Appearing in this manual: WARNING statements identify conditions or practices that could result in injury or death. WARNING CAUTION CAUTION statements identify conditions or practices that could result in damage to this product or other property. Appearing on the product: Danger of personal injury or property damage. Refer to manual for details.
Pico Technology WPS500X User’s Guide DO NOT exceed maximum working pressure To avoid injury, do not use the transducer with pressures above 500 psi / 34.5 bar. DO NOT exceed maximum temperature The lithium polymer (LiPo) battery inside the transducer can be damaged by excessive heating. Do not store or operate the unit at temperatures above 60 °C (140 °F). DO NOT operate without covers To avoid equipment damage and personal injury, do not operate this transducer with the covers removed.
WPS500X User’s Guide Pico Technology 2. Description The WPS500X automotive diagnostic pressure transducer allows quick and accurate pressure analysis of many automotive systems. It can be used for many different pressure diagnostic applications, saving the need to own several transducers for several applications.
Pico Technology WPS500X User’s Guide 3. Re-ordering codes If you need to re-order spare parts, please use the part numbers listed here.
WPS500X User’s Guide Pico Technology 4. The parts of your WPS500X pressure transducer Signal output to oscilloscope Front-panel controls USB charging port Bleed button Signal output Front-panel controls USB charging port Inlet port Bleed vent Bleed button 6 Inlet port Bleed vent Use the BNC-to-BNC cable supplied to connect this to your oscilloscope. See Section 5. For battery recharging only (no data connection). Connect to any USB port on a computer or a 5 volt USB wall charger.
Pico Technology WPS500X User’s Guide 5. Front-panel controls Charging indicator Lights up when battery is charging. Low battery indicator Lights up when power is on but battery is low. Range indicators Show which of the three ranges is selected. Zoom indicators Show which of the three zoom modes, if any, is in use. Power button Press once to switch on. Press once again to switch off. Keep the unit switched off when not in use to conserve battery power.
WPS500X User’s Guide Pico Technology 6. Operating modes Ranges 1 to 3 Select the range using the Range button shown in Section 5: “Front-panel controls”. Range 1: The first range measures from –15 psi (–1 bar) to +500 psi (34.5 bar). It offers high resolution and accuracy for high-pressure tests such as cranking and running cylinder compression or fuel pressure testing.
Pico Technology WPS500X User’s Guide 7. Preparation for use Compatible fluid types The WPS500X is suitable for use with the following types of fluid: Gasoline and diesel (low pressures only – see warning on p. 3) Engine oil Air Before first use Remove all packaging. Charge the internal battery. For instructions, see Section 0: “”.
WPS500X User’s Guide Pico Technology 8. Making a measurement Making a pressure measurement involves the following steps. Each step is explained in more detail in the sections below. Prepare the transducer Measure pressure Release the pressure in the measurement chamber Clean the measurement chamber Preparing the transducer Ensure that the transducer’s internal battery is charged. Unplug the charging cable from the transducer. Before switching on, disconnect any pressure source from the transducer.
Pico Technology WPS500X User’s Guide Releasing the pressure in the measurement chamber After each measurement, some fluid will remain under pressure in measurement chamber. Follow the instructions below to release the pressure. the Hold the transducer over a suitable container to catch the fluid expelled from the bleed vent. WARNING The fluid released from the bleed vent may be under high pressure. Position the transducer so that the fluid released cannot cause damage or injury.
WPS500X User’s Guide Pico Technology Dismantle the bleed valve and allow any liquid to drain out. The bleed valve in your WPS500X pressure transducer may be either a ball valve, a needle valve or a Schrader valve, as shown in the drawings below. Ball valve WPS500X with ball valve If the ball is still inside the ball valve, allow it to drop out. Clean and oil the ball with a non-hygroscopic oil that is compatible with steel and aluminum. Ordinary motor oil is suitable.
Pico Technology WPS500X User’s Guide 9. Maintenance Cleaning the housing Clean the transducer’s housing by wiping it with a rag moistened with clean water or water-based detergent. Allow the housing to dry before use. Do Do Do Do Do not not not not not use fuel or any other solvent use abrasive cleaning agents submerge the unit in any liquid dismantle the unit use the unit until it is perfectly dry. Cleaning the measurement chamber See Section 8 above.
WPS500X User’s Guide Pico Technology Disposal The WPS500X contains a lithium polymer (LiPo) battery. If the battery has reached the end of its life, you may return the unit for repair. When the transducer reaches the end of its life, take the entire unit to a battery recycling facility for safe disposal. YOU MUST observe the instructions below. Incorrect disposal of the battery could cause a fire or an explosion.
Pico Technology WPS500X User’s Guide 10. Specifications Inlet Pressure ranges Range 1 Range 2 Range 3 –15 to +500 psi –15 to +50 psi –5 to +5 psi –1 to +34.5 –1 to +3.45 –0.345 to +0.345 bar bar bar Connector Male push-fit Output Scaling 1 V/100 psi (6.89 bar) Offset (typical) 1 V/10 psi (0.689 bar) 1 V/1 psi (0.
WPS500X User’s Guide Pico Technology UK headquarters: USA headquarters: Pico Technology James House Colmworth Business Park St. Neots PE19 8YP United Kingdom Pico Technology 320 N Glenwood Blvd Tyler Texas 75702 United States This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
