WPS600C Hydraulic Pressure Transducer

See what's happening inside your hydraulic system

Conventional pressure gauges tell you what the pressure is. PicoScope with the WPS600C tells you what the pressure is doing and when.

Connecting the WPS600C to a standard M16 x 2 Minimess test point gives you real-time pressure waveforms you can view alongside engine control signals, current clamp data, and sensor outputs. You can see the exact moment a hydraulic valve starts to move, compare it directly to the relevant solenoid signal, and immediately identify whether a fault lies in the hydraulic side or the electronic control system.

For mobile machinery technicians dealing with stalling, no-start conditions, or poor hydraulic performance, this is the visibility that analogue gauges simply cannot provide.

In this video, Ben Martins shows Pico Technology's Engine and Hydraulics Kit. Ben gives an overview of what you can expect to find in the kit, and discusses some of the uses the kit has.

WPS600C Pressure Transducer

With high accuracy and a wide measuring range, the WPS600C Hydraulic Pressure Transducer connects to your PicoScope for convenient analysis and diagnosis of pressurized systems.

• Accurately measure up to 600 bar (8700 psi)

• Ultra-fast 100 microsecond response time (0% to 90% of full scale)

• Internal rechargeable LiPo battery

• Industry-standard M16 x 2 test point connector

• Auto-zeroing

• High noise immunity

• Temperature compensated

Due to the wide range of hydraulic fittings in use, we do not supply any specific adaptors or hoses for use with this product. Those provided with the low-pressure WPS500X are not suitable for use with the higher-pressure hydraulic systems.

We recommend contacting your regular hydraulic hose supplier for any additional fittings or custom hose assemblies you may require to suit your specific system.

Note: This product is not intended for continuous operation.

Flow meters — extend your hydraulic testing capability

To complement the WPS600C, Pico offers a range of hydraulic flow meters developed in partnership with Webtec, based on their turbine flow meter range. Three sizes are available in 25 lpm, 300 lpm and 600 lpm giving coverage from low-flow circuits through to high-capacity systems.

Every flow meter includes a direct output for connection to PicoScope and an embedded thermistor for oil temperature measurement (TA370 and TA372 adaptors required, included with purchase). The 300 lpm and 600 lpm models also have a built-in loading valve, allowing the hydraulic system to be tested under full working load and capturing flow, pressure and temperature simultaneously.

All flow meters are supplied with a M16 x 2 Minimess pressure test port for direct WPS600C connection.

Flow meters are available with either SAE or BSP inlet and outlet ports to suit your system. Note: the 600 lpm model inlet and outlet ports are SAE only; top ports are available in both BSP and SAE. See the port specifications chart for confirmation of sizes.

WPS600C flow ranges and top ports

Pico part No.	Webtec Model No.	Flow range	Main ports	Top ports	Max pressure
TA376	CT25-FB-B-B-6	1-25 lpm	½" BSPP	¼" BSPP	420 bar
TA377	CT300R-FB-B-B-6	8 - 300 lpm	1" BSPP	¼" BSPP	420 bar
TA378	CT600R-FB-S-B-7	20 - 600 lpm	1 - 7/8" -12UN #24 SAE ORB	¼" BSPP	480 bar
TA3779	CT25-FB-S-S-6	0.5 - 7 US gpm	¾" -16UN #8 SAE ORB	7/16" -20UN #4 SAE ORB	6000 psi
TA380	CT300R-FB-S-S-6	2 - 80 US gpm	1- 5/16" -12UN #16 SAE ORB	7/16" -20UN #4 SAE ORB	6000 psi
TA381	CT600R-FB-S-S-7	5 - 160 US gpm	1 - 7/8" -12UN #24 SAE ORB	7/16" -20UN #4 SAE ORB	7000 psi

Built for high-pressure hydraulic diagnostics

The WPS600C is designed for permanent and non-permanent connection to automotive and industrial hydraulic systems. Two switchable pressure ranges provide the flexibility to cover everything from low-pressure oil pump circuits through to high-pressure hydraulic systems, without changing tools.

The 100 µs response time is fast enough to capture valve switching transitions and pressure pulses that would be completely invisible on a dial gauge. Auto zeroing, temperature compensation, and high noise immunity ensure accurate, repeatable results across a full day of field testing. An internal rechargeable LiPo battery means no external power source is needed.

Important: the WPS600C is not rated for continuous operation. Due to the wide range of hydraulic fittings in use, Pico does not supply specific adaptors or hoses for this product — the adaptors supplied with the WPS500X are not suitable for high-pressure hydraulic systems. Contact your regular hydraulic hose supplier for fittings and custom hose assemblies suited to your specific system.

Range	Pressure range	Accuracy	Response time	Output scaling
1	0 to 600 bar 0 to 8700 psi	1% of scale	100 µs	1 V/100 bar 1 V/1450 psi
2	0 to 60 bar 0 to 870 psi	1% of scale	100 µs	1 V/10 bar 1 V/145 psi

For any high-pressure hydraulic diagnosis

Measures up to 600 bar (8,700 psi)

covers virtually all automotive and industrial hydraulic systems

100 µs response time

captures valve switching events and pressure pulses in real time

Two switchable pressure ranges

0–600 bar and 0–60 bar for high and low pressure systems

Industry-standard M16 x 2 Minimess connector

connects directly to standard hydraulic test points

Internal rechargeable LiPo battery

no external power required in the field

Auto zeroing

accurate baseline at the start of every test

High noise immunity

clean signals in electrically noisy plant environments

Temperature compensated

consistent accuracy across operating temperatures

Typical uses

Connecting the WPS600C to your hydraulic system's Minimess test points lets you monitor pressure against time, revealing transitions and behaviours that a static gauge cannot show. Used alongside PicoScope's engine and electrical tests, it gives you simultaneous visibility of both the hydraulic and electronic control systems.

Hydraulic system performance

• Hydraulic pump output and efficiency
• Hydraulic pressure control valve performance
• Hydraulic pressure decay between cycles
• Residual hydraulic pressure check

Hydraulic circuit behaviour

• Hydraulic valve switching activity and timing
• System response under load (with 300 lpm / 600 lpm flow meters)
• Comparison of hydraulic switching events against solenoid control signals

Engine and hydraulic interaction

• Stalling faults caused by hydraulic overload
• No-start diagnosis combining engine compression and hydraulic pressure
• Full visibility of engine control signals alongside hydraulic circuit behaviour

See our article on Hydraulic waveform examples and analysis.

Engine and Hydraulics Kit: Kit contents

The Engine and Hydraulics Kit (PQ195) combines the 4-Channel Automotive PicoScope (4425A) with two WPS600C transducers and the full Diesel diagnostics kit. It gives technicians working on mobile machinery complete coverage of both the engine electrical systems and the hydraulic circuits in a single package. Optional flow meters (sold separately, SAE or BSP port, in 25 lpm, 300 lpm and 600 lpm sizes) extend the capability further to include flow measurement and oil temperature.

1	Carry case	2	Small Crocodile/Gator Clip red
1	Carry case WPS600C	2	Small Crocodile/Gator Clip black
1	4-Channel Automotive Oscilloscope (4425A)	2	PicoScope Battery Clip red
2	WPS600C Pressure Transducer	2	PicoScope Battery Clip black
1	PicoBNC+ 2000 A (high amps) DC current clamp	4	Flexible Back-pinning Probe red
1	PicoBNC+ 60 A DC (low amps) current clamp	4	Flexible Back-pinning Probe black
2	PicoBNC+ 10:1 Scope probe	4	Shrouded to Unshrouded Adaptor red
1	Ultrasonic parking sensor detector	1	2-pin AMP Connector breakout lead
1	Keyless entry detector	1	ATC/ATO fuse extension lead
1	Back-pinning Probe Set	1	Maxi fuse extension lead
4	PicoBNC+ Premium test leads (4 colours)	1	Mini fuse extension lead
1	USB 3.0 cable (blue) 1.8 m	1	JCASE fuse extension lead
2	Insulated BNC to insulated BNC 2 m	1	2-pin ACS connector breakout lead
2	Insulated BNC to insulated BNC 5 m	1	3-pin Kostal connector breakout lead
2	WPS600C charging cable	2	S-hook
2	Multimeter Probe red	2	Multimeter Probe black