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PICO Automotive Pressure Transducer

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WPS500X pressure transducerWPS500X - PP652
(Kit - PP939)

      
 

With the uncompromising resolution and accuracy of the WPS500X Automotive Pressure Transducer you can perform quick and accurate pressure analysis of many automotive systems.

 

Overview


Often, problems reported by customers can have many potential causes, and simply reading fault codes leaves you no closer to a solution. In addition to the comprehensive electrical testing provided by PicoScope, the addition of a WPS500X provides you with that same detailed insight into the engine system for accurate diagnosis of common problems such as:
 

  • No start
  • Loss of power
  • Misfire
  • Stalling
  • Engine noise
  • Emissions fault
  • Backfire


With the unparalleled resolution and accuracy of the WPS500X Automotive Pressure Transducer you can perform quick and accurate pressure analysis on many automotive systems.
 

  • Accurately measure up to 500 psi (34 bar)
  • Ultra-fast 100 µs response time
  • Zoom function for enhanced analysis capabilities
  • Internal rechargeable LiPo battery
  • Integrated pressure relief / bleed-off valve
  • Auto zeroing
  • High noise immunity
  • Temperature compensated


The WPS500X features an extremely fast 100 µs response time from 0% to 90% of full scale and sensitivity down to about 0.07 psi (5 mbar). This provides you with an accurate representation of rapidly changing signals that span a broad pressure range.

Use the WPS500X with PicoScope to reveal how your engine is actually performing with minimal intrusion. Compression, airflow, valve timing and back pressure can all be measured in one hit.


Pressure ranges

Three pressure ranges = performance and versatility

The three pressure ranges of the WPS500X allow for accurate measurement and analysis of many automotive pressures including cylinder compression, fuel pressure, intake manifold vacuum and even pulses from the exhaust.

Range 1

figure 1

Running compression waveform

The first range gives you high-resolution and accuracy for high-pressure tests such as cranking and running cylinder compression or fuel pressure testing. Not only is this test a great way for you to find compression issues, but it is also an excellent way for you to identify cam timing issues such as jumped timing belts and stretched timing chains - this is especially useful on multi-cam engines that may not have a cam sensor on each camshaft.

Range 2

The second range measures from -15 to 50 psi (approximately -1 to 3.45 bar). This range is ideal for vacuum tests and fuel system tests. When testing these systems you will find the zoom function is especially useful as it makes it easy to analyse the valves operating with the vacuum waveform, or the injectors through the fuel waveform.

figure 2

Intake manifold vacuum during snap-throttle

Range 3

With the third range you can measure -5 to 5 psi (approximately -0.34 to 0.34 bar). This setting is sensitive enough to allow you to analyse small pressures or pulses such as pulses from the exhaust.

Range Pressure range Accuracy Response time Output scaling
1 -15 to 500 psi
-1 to 34.47 bar
1% of scale 100 µs 10 mV/1 psi
(500 psi = 5 V)
2 -15 to 50 psi
-1 to 3.45 bar
1% of scale 100 µs 100 mV/1 psi
(50 psi = 5 V)
3 -5 to 5 psi
-0.34 to 0.34 bar
NS NS 1 V/1 psi
(5 psi = 5 V)

Built-in zoom function for enhanced analysis

figure 3

Using the zoom function to show
intake valve pulses (ChA)

The zoom function operates by removing all of the voltage from the signal below 100 Hz and then multiplying the remaining signal up to 100 times. For example: Lets say your transducer is connected to the intake manifold vacuum on a running engine at idle with the transducer set to mode 2 (-15 to 50 psi) and the waveform on your PicoScope is at -9 psi. The fluctuation in the signal caused by the valves opening and closing verses atmospheric pressure forcing air into the manifold will be visible, but will only make up a small portion of the overall signal. Selecting the zoom function will bring the waveform up to the zero line and the fluctuations will be magnified making analysis of this component of the signal much clearer.

Nothing compares to the WPS500X

It is not unusal to require a different pressure transducer for each diagnostic test you want to run. The WPS500X eliminates this need by giving you one ultra-high resolution transducer that can be used for a multitude of automotive diagnostic applications. With three pressure ranges, a zoom function, pressure relief valve and a rechargeable Li-Po battery all enclosed in a durable housing the WPS500X is the cost-effective answer to pressure analysis.

When price, performance and versatility matter, there is nothing that compares to the WPS500X Automotive Pressure Transducer.


Typical tests


The pressure transducer has become the essential diagnostic tool to assist with a multitude of pressure related tasks from -15 psi up to 500 psi, so replacing the majority of analog gauges used today. With the ability to measure pressure against time we can now witness rapid events taking place that were never previously visible. Below is just a selection of how the pressure transducer takes diagnostic to a whole new level. (Adaptors will be required)
 

  • In-cylinder pressure tests
  • 4-stroke cycle visibility
  • Exhaust gas pulsations
  • Intake manifold pressure fluctuations
  • Crankcase pressure measurements
  • Diesel injector back leakage tests
  • Fuel pressure tests up to 500 psi


 


Example tests

Engine

  • Cylinder compression testing (Cranking)
  • Cylinder compression testing (Idle)
  • Cylinder compression testing (WOT snap test)
  • Intake manifold pressure petrol and diesel
  • Exhaust gas pressure pulsations
  • Exhaust back pressure evaluations
  • Crankcase pressure pulsations
  • PCV valve operation when you have high crankcase pressures
  • Camshaft timing evaluation (Belt, Chain and Gear Driven)
  • Cylinder head valve sealing integrity
  • Engine oil pressure testing
  • Cooling system pressure evaluation-Head gasket failure
  • Radiator cap evaluation with over pressurized cooling systems
  • Vacuum pump efficiency

Fuel

  • Fuel delivery pressure, Petrol
  • Fuel pressure regulator test, Petrol
  • Fuel delivery residual pressure test, Petrol
  • Fuel delivery/priming pump efficiency, petrol and diesel
  • Fuel positive priming pressure, Diesel
  • Fuel negative priming pressure, Diesel
  • Fuel delivery residual pressure, Diesel
  • Fuel injector back leakage test, Diesel
  • Fuel injector contribution evaluation test, Petrol
  • “Evaporative loss” control vacuum circuits and solenoids

Turbo

  • Boost pressure evaluation (Variable vane errors)
  • Boost control vacuum circuits and solenoids
  • Waste gate operation

Engine Management

  • Variable induction system actuator/control integrity test.
  • Idle control damper integrity test.
  • Cruise control actuators, vacuum circuits and solenoids.

Chassis

  • Air suspension pump efficiency
  • Air suspension residual pressure testing
  • Air suspension control pneumatic circuits & solenoids
  • Brake servo evaluation and integrity test

Transmission

  • Auto transmission line pressure testing
  • Auto transmission governor pressure testing

Mechanical

  • Cylinder head gaskets
  • Broken/stuck rocker valves
  • Blocked exhaust / DPF

 


Kit contents


The WPS500X is available as just a transducer or as part of one of our popular kits. 

As well as the transducer the WPS500X kit also includes the following accessories:

 

  • PA094 WPS500X compression adaptor carry case
  • TA081  USB charging cable for the WPS500X
  • TA083  Fuel hose for WPS500, large Schrader
  • TA085  Vacuum hose for WPS500 pressure transducer
  • TA086  Bleed hose for WPS500 pressure transducer
  • TA087  Exhaust adaptor for WPS500 pressure transducer
  • TA117  Fuel hose for WPS500, small Schrader
  • TA129  Universal vacuum adaptor
  • TA130 BNC 5m to BNC cable
  • TA142  Foster 2 series quick coupler female to ¼ NPT male
  • TA212  Standard compression hose for WPS 500
  • TA213  Adaptor M10 short reach
  • TA216  Adaptor M12 deep reach
  • TA217  Adaptor M14 short reach
  • TA218  Adaptor M14 deep reach


The Maxi Kit adds further accessories to further extend the capability of the system:
 

  • TA130    Cable: insulated BNC to insulated BNC 5m
  • TA214    Adaptor M10 deep reach
  • TA219    Adaptor M16 Ford Triton
  • TA220    Adaptor M18
  • PP970    Adaptor kit A (Foster series 12)
  • PP972   Vacuum tap for WPS500 (brass)
  • PP973    Fuel hose pressure tap: small (brass)
  • PP974    Fuel hose pressure tap: medium (brass)
  • TA250    WPS500X Adaptor Kit B


Both the WPS500X Kit and the WPS500 Maxi Kit are available in a range of packaging options and with one or two WPS500X transducers.


Accessories for the WPS500X Pressure Transducer


 

Cat No: Product Price

PQ071
Sight block kit

TA333
Right angle Rectus-21 pressure adaptor

TA332
Male to male Rectus-21 pressure adaptor

TA316

 
Short hose with female to female coupler (Rectus 21)

TA166
PicoScope WPS500X Large hose adaptor

TA142
Foster 2 Series quick coupler female to 1/8 inch NPT male

TA212

TA212 Standard Hose

Standard Hose

 Standard Hose [Accepts TA213 to TA220]

TA213

Adaptor M10 short reach

TA214

Adaptor M10 Deep reach

[Usually used with motorcycle engines or small european cars]

TA217

 

Adaptor M14 Short reach

TA218

Adaptor M14 Deep reach

TA219

Adaptor M16 Ford triton

TA220

Adaptor M18

[Used with older Chrysler Engines 1980's]

TA103 zoom
TA103

M10 high-strength compression hose

[Usually used with motorcycle engines or small european cars]

TA104 zoom
TA104

M18 high-strength compression hose

[Used with older Chrysler Engines 1980's]

TA085 zoom
TA085
Vacuum hose
TA087 zoom
TA087
Exhaust adapter
TA129 zoom
TA129
Universal vacuum adapter
PP972 zoom
pp972_sm
Double Taper for Vacuum Lines
PP973 zoom
pp973_small
1/4" and 5/16" t
PP974 zoom
pp974 Small
5/16" & 3/8" 
TA086 zoom
TA086
Bleed Hose
TA083 zoom
TA083
Gas pressure fuel hose with large Schrader valve
TA117 zoom
TA117
Gas pressure fuel hose with small Schrader valve

ADAPTOR KITS:

 
TA250 zoom
Adaptors to allow connection to an existing Sykes-Pickavant Pressure Testing Gauge
PP970 zoom    

pp970 AST Adaptors
Adaptor kit to allow connection to an existing AST Pressure Testing Gauge 
TA323
 
Diesel glow plug adaptor kit
TA323

 


 

Case Study using the WPS-500x.... [3MB in size]

Press Release regarding the new vacuum pressure taps ......

Q & A: Can the WPS500x be used for dynamic diesel compression tests? 

Q & A: What is required to connect a WPS500x to my existing Sykes-Pickavant or AST Diesel Pressure Kit?


Order

     
WPS500

PP652
WPS500X Automotive Pressure Transducer
Contents:
  • WPS500X Pressure Transducer
  • Carry case
  • USB cable
  • BNC to BNC cable

PP939 Pressure Kit - New!









PP939
The PP939 Kit includes many Hoses and adaptors as follows: 

Transducer, Pressure WPS500x Multirange Kit C/W USB Cable, BNC-BNC Cable and Carrying Case

TA083 - Gas pressure fuel hose with large Schrader valve
TA117 - Gas pressure fuel hose with small Schrader valve
TA085 - Vacuum Hose
TA086 - Bleed Hose
TA087 - Exhaust Adaptor
TA142 - Spare Foster series 2 quick coupler
TA213 - M10 Short Reach Adaptor
TA216 - M12 Deep Reach Adaptor
TA217 - M14 Short Reach Adaptor
TA218 - Adaptor M14 Deep Reach
TA212 -  Standard Compression hose for WPS
TA129 - Universal Vacuum Adaptor
all in a sturdy black carrying case.



PQ038
Our WPS500X Maxi kit allows you to purchase the WPS500X Automotive Pressure Transducer together with our full set of hoses and adapters, giving you the maximum possible flexibility we can offer.

What you get:
  • WPS500X pressure transducer
  • TA083: Fuel hose with large Schrader valve
  • TA117: Fuel hose with small Schrader valve
  • TA086: Bleed hose
  • TA087: Exhaust adapter
  • TA212: Standard compression hose for WPS
  • TA213: Adaptor M10 short reach
  • TA214: Adaptor M10 deep reach
  • TA216: Adaptor M12 deep reach
  • TA217: Adaptor M14 short reach
  • TA218: Adaptor M14 Deep reach
  • TA219: Adaptor M16 Ford Triton
  • TA220: Adaptor M18
  • PP970: WPS500X Adaptor Kit A
  • TA250: WPS500X Adaptor Kit B
  • PP972: Vacuum tap
  • PP973: Fuel hose pressure tap: Small
  • PP974: Fuel hose pressure tap: Medium
  • TA085: Vacuum hose
  • TA129: Universal vacuum adaptor
  • Additional TA142: Foster series 2 quick coupler
  • USB charging cable
  • BNC to BNC cable
  • Carry case
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