Hydraulic Pressure Gauge (Digital)
Upgrade from mechanical Bourdon gauges to a digital, robust, and remotely readable solution. Winsen’s industrial pressure transducers and transmitters cover hydraulic ranges up to 100 MPa with fast response and stainless-steel wetted parts. Pair the sensor with a panel indicator or PLC to display pressure locally and stream data to SCADA.
OEM/ODM • Private labeling • Flexible threads & connectors
- Up to 100 MPa hydraulic ranges (model-dependent)
- ≤1–4 ms fast response
- 4–20 mA / 0–10 V PLC & indicator ready
- SS316L / Ceramic rugged wetted materials
What is a Digital Hydraulic Pressure Gauge?
A digital hydraulic gauge uses an electronic pressure transducer/transmitter to convert fluid pressure into an electrical signal and a display value. Compared with mechanical gauges, it offers better accuracy, shock resistance, remote monitoring, and alarm capability. It also supports data logging and predictive maintenance.
Pregled primerjave senzorja tlaka in oddajnika
| Kategorija | Model | Napajanje/izhod | Območje odkrivanja | Natančnost/nelinearnost | Referenca pritiska | Delovna temperatura | Material lupine | Opombe |
| Razpršen senzor tlaka silicija | WPAK70 | 1,5 mA / mV | -100kPa ~ 0 ~ 10kPa…10MPa | ≤ ± 0,3%fs | Merilnik / absolutni / zaprti merilnik | -40 ℃ ~ 120 ℃ | – | Visoka vsestranskost, kompakten dizajn |
| WPAK69 | 1,5 mA / mV | -100kPa ~ 0 ~ 10kPa…10MPa | ≤ ± 0,3%fs | Merilnik / absolutni / zaprti merilnik | -40 ℃ ~ 120 ℃ | – | Podobno kot WPAK70 | |
| WPAK68 | 1,5 mA / mV | -100kPa ~ 0 ~ 10kPa…100MPa | ≤ ± 0,3%fs | Merilnik / absolutni / zaprti merilnik | -40 ℃ ~ 120 ℃ | – | Različica z razširjenim dosegom | |
| WPAK67 | 1,5 mA / mV | 0 ~ 10kPa…2,5MPa | ≤ ± 0,3%fs | Diferencialni tlak | -40 ℃ ~ 120 ℃ | – | Za diferencialne aplikacije | |
| WPAK66 | 1,5 mA ali 10 V / mV | 6MPA… 60MPA | ≤ ± 0,3%fs | Zapečaten merilnik | -40 ℃ ~ 120 ℃ | – | Zaprta zasnova za višje razpone | |
| Wpek65 | 1,5 mA ali 10 V / mV | -100kPa ~ 0 ~ 10kPa…16MPa | ≤ ± 0,3%fs | Merilnik / absolutni / zaprti merilnik | -40 ℃ ~ 120 ℃ | – | Senzor za splošno uporabo | |
| WPAK64 | 1,5 mA ali 10 V / mV | -100kPa ~ 0 ~ 10kPa…25MPa | ≤ ± 0,3%fs | Merilnik / absolutni / zaprti merilnik | -40 ℃ ~ 120 ℃ | – | Zmerna pokritost | |
| Wopak63j | 1,5 mA / mV | -100kPa ~ 0 ~ 10kPa…100MPa | ≤ ± 0,3%fs | Merilnik / absolutni / zaprti merilnik | -40 ℃ ~ 120 ℃ | – | Različica tipa J za posebno montažo | |
| WPAK63 | 1,5 mA ali 10 V / mV | -100kPa ~ 0 ~ 10kPa…100MPa | ≤ ± 0,3%fs | Merilnik / absolutni / zaprti merilnik | -40 ℃ ~ 120 ℃ | – | Vsestranski s širokim razponom | |
| Senzor keramičnega tlaka | WPAH01 | 2–20 V / mV | 0 ~ 200kPa…40MPa | ≤ ± 0,3%fs | – | -40 ℃ ~ 125 ℃ | – | Visoka kemična odpornost |
| Plastični zatesnjeni tlačni senzor | WPAS12 | Digitalni in analogni | 15–115 kPa | – | – | -40 ℃ ~ 125 ℃ | – | Stroškovno učinkovit, kompakten |
| WPAS02 | Digitalni in analogni | 10kPa ~ 100kPa | – | – | -20 ℃ ~ 80 ℃ | – | Osnovni senzor za zrak/plin | |
| WPAS01 | Digitalni in analogni | 10kPa ~ 100kPa | – | – | -40 ℃ ~ 125 ℃ | – | Robustna toleranca na visoke temperature | |
| Razpršeni oddajnik silicijevega tlaka | WPCK81 | 4–20 mA, RS485 | 0 ~ 1m…200mH₂O | ±0,5% FS / ±1% FS | Tlak merilnika | – | Nerjaveče jeklo | Za meritve globine in nivoja rezervoarja |
| WPCK62 | 4–20 mA (izbirno) | 0 ~35kPa…25MPa | ± 0,5%fs | Merilnik / absolutni / zaprti merilnik | – | Nerjaveče jeklo | Široko združljive možnosti niti | |
| WPCK08 | 4–20 mA, RS485 | 0 ~ 200 mH₂O | ± 0,5%fs | Tlak merilnika | – | Nerjaveče jeklo | Eksplozijsko varna različica | |
| WPCK07 | 4–20 mA, 0,5–4,5 V, 0–5 V, 1–5 V, 0–10 V, 1–10 V | -100kPa ~ 0 ~ 10kPa…100MPa | ± 0,5%fs | Merilnik / absolutni / zaprti merilnik | – | Nerjaveče jeklo | Izhodne vrste celotnega obsega | |
| WPCK05 | 0.5–4,5 V, 0–5 V, 1–5 V, 0–10 V, 1–10 V | -100kPa ~ 0 ~ 10kPa…100MPa | ± 0,5%fs | Merilnik / absolutni / zaprti merilnik | – | Nerjaveče jeklo | Možnosti izhodne napetosti | |
| WPCK03 | I²C, 4–20 mA, 0,5–4,5 V in več | -100kPa ~ 0 ~ 10kPa…100MPa | ±0,2 %FS, ±0,5 %FS (po meri) | Merilnik / absolutni / zaprti merilnik | – | Nerjaveče jeklo | Prilagodljivi tipi signalov, visoka natančnost | |
| Oddajnik keramičnega tlaka | WPCH04 | 0.5–4,5 V (prilagodljivo) | 0.2MPa…40MPa | 0.1%FS (privzeto) | – | – | Nerjaveče jeklo | Visoko natančno keramično jedro |
| WPCH01 | 4–20 mA, 0/1–5/10 V, 0,5–4,5 V | 0.2–5MPa | 0.1% ~ 5,0% FS (privzeto 2,0%) | – | – | Nerjaveče jeklo | Prilagodljivi, vsestranski izhodi | |
| WPBH01 | Proporcionalna napetost (0,5–4,5 V) | 2–400 barov (prilagodljivo) | 0.5%, 1%, 2% (privzeto), 3% | – | – | Nerjaveče jeklo | Širok razpon tlaka | |
| Stekleni oddajnik z mikrotaljenjem | WPCK89 | Digitalni in analogni | 0 ~ 100 / 150 / 250 / 500 psig | ±1 % FS | – | – | Nerjaveče jeklo | Izjemno robusten in termično stabilen |
Selection Guide
| Hydraulic Equipment | Typical Range | Recommended Model | Preferred Output | Notes |
|---|---|---|---|---|
| Hydraulic power packs, manifolds | 0–25 MPa / 0–31.5 MPa | WPCK05 / WPCK07 | 4–20 mA | Best for long cable runs and noisy plants. |
| Presses, injection molding, die-casting | 0–40 MPa / 0–60 MPa | WPCK03 / WPCH04 | 4–20 mA or 0–10 V | Ceramic diaphragm helps with pulsation. |
| Mobile hydraulics (excavator, loader) | 0–40 MPa | WPCK07 | 4–20 mA | Choose rugged connectors and cable glands. |
| Test benches & calibration rigs | 0–10 / 0–25 MPa | WPCK62 | 0–10 V | Fast transient capture with <4 ms response. |
| OEM digital gauge platform | 6–60 MPa | WPAK66 (core) | Board-level | Add your own display & housing to brand a gauge. |
Thread options like G1/4, 1/4-NPT, M14×1.5 are available depending on model and region. Confirm exact part number at order.
Applications & Industries
Hydraulic Power Units (HPU)
Continuous monitoring on pump outlets and manifolds for alarms and trending.
- Typical range: 0–25 / 0–31.5 MPa
- Pick: WPCK05 / WPCK07 (4–20 mA)
- Tip: Add snubber to tame pump ripple
Presses & Stamping Lines
High-pressure lines with shock loads and pulsation.
- Typical range: 0–40 / 0–60 MPa
- Pick: WPCK03 or WPCH04
- Tip: Ceramic
Injection Molding & Die Casting
Fast transients during injection/holding phases.
- Typical range: 0–25 / 0–40 MPa
- Pick: WPCK07 (≤1 ms) / WPCK62 (<4 ms)
- Tip: Use short impulse lines for response
Mobile Hydraulics
Excavators, loaders, cranes—vibration & temperature swings.
- Typical range: 0–40 MPa
- Pick: WPCK07 + rugged connector (M12/Deutsch)
- Tip: Route cable away from actuators
Test Benches & Calibration Rigs
High repeatability and fast capture for transients.
- Typical range: 0–10 / 0–25 MPa
- Pick: WPCK62 (0–10 V)
- Tip: Pair with high-impedance DAQ input
OEM Digital Gauge Platforms
Build branded gauge heads with your display & housing.
- Typical range: 6–60 MPa
- Pick: WPAK66 sensor core
- Tip: Add your conditioning & logo panel
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Application Matrix
| Aplikacija | Typical FS Range | Recommended Model | Preferred Output | Notes |
|---|---|---|---|---|
| HPU / Manifold | 0–25 / 0–31.5 MPa | WPCK05, WPCK07 | 4–20 mA | Noise immunity for long cable runs |
| Press / Stamping | 0–40 / 0–60 MPa | WPCK03, WPCH04 | 4–20 mA or 0–10 V | Use snubber; verify overload/burst |
| Injection & Die Casting | 0–25 / 0–40 MPa | WPCK07, WPCK62 | 0–10 V (fast DAQ) or 4–20 mA | <4 ms response aids transient capture |
| Mobile Hydraulics | 0–40 MPa | WPCK07 | 4–20 mA | M12/Deutsch; strain-relieved pigtails |
| Bench & Calibration | 0–10 / 0–25 MPa | WPCK62 | 0–10 V | High-impedance input (>10 kΩ) |
| OEM Gauge Build | 6–60 MPa | WPAK66 (core) | Board-level | Add display, battery, enclosure |
Threads such as G1/4, 1/4-NPT, M14×1.5 are available per model. Confirm exact part number and labeling at order.
Integration & Wiring
Analog 4–20 mA (2-wire): Best EMC immunity and long-distance runs to PLC/indicator. Use 12–36 VDC loop power and keep loop impedance within sensor compliance.
Analog 0–10 V: Simple panel-meter/DAQ hookup; ensure high-impedance input (>10 kΩ) and a clean supply.
Ratiometric 0.5–4.5 V / Digital (I²C/SPI): Use for board-level or compact gauges where you control the electronics and display.
- Add snubbers or small orifice when heavy pulsation causes pointer jitter.
- For shock events, verify overload/burst ratings vs. peak spikes.
- Use shielded, grounded cables near servo drives and pumps.
Ordering & Bulk Purchasing
How to Specify
- Range & units (e.g., 0–25 MPa, 0–40 MPa, 0–60 MPa)
- Output (4–20 mA, 0–10 V, ratiometric, digital)
- Process thread (G1/4, 1/4-NPT, M14×1.5, etc.)
- Connector & cable (M12, DIN, Packard/Deutsch, pigtail)
- Environment (temperature, vibration, IP, shock/pulsation)
- Documentation (test report, calibration cert, labeling)
Program Terms
- Samples for validation and bench tests
- Tiered pricing for volume schedules
- Private labeling & custom packaging
- Rolling forecasts with safety stock on request
Differential Pressure Sensor vs Transducer vs Transmitter
| Device | Izhod | Typical Use | Pros | Considerations |
|---|---|---|---|---|
| ΔP Sensor (board/compact) | Ratiometric / I²C / SPI | Embedded devices, instruments | Small, low-power, cost-effective | Requires host electronics and enclosure |
| ΔP Transducer | 0–10 V / 4–20 mA | PLC/DAQ measurement | Simple wiring, long cable runs | External display/relays not included |
| ΔP Transmitter | Conditioned + enclosure (often display/relays) | Field installation, panel mount | Rugged, installer-friendly | Largest size and highest cost |
Not sure which to choose? Share your controller model and mounting location—we’ll recommend the right package.
Frequently Asked Questions (FAQ)
Digital gauge vs. mechanical gauge — which should I choose?
Choose digital if you need remote monitoring, alarms, logging, better vibration resistance or tighter accuracy; choose mechanical for very simple, no-power local indication.
How do I protect the sensor from pulsation and spikes?
Use a snubber/restrictor, flexible hose sections, and verify overload/burst ratings vs. your relief-valve setting and transient peaks.
Can I retrofit without changing pipework?
Yes — we offer common threads and adapters (G/NPT/metric). Provide photos or thread specs and we’ll choose a matching part number.
Do you provide calibration certificates?
Factory test reports are included for standard builds. Calibration certificates can be provided when required by your QA program.
Več znanja o senzorjih hladilnega sredstva
Pressure Units: The Complete Guide (with Conversion Tables & Sensor Tips)
Learn the most common pressure units (Pa, kPa, MPa, bar, mbar, psi, atm, Torr/mmHg, inHg, inH₂O), when to use each one, and how to convert accurately using formulas, examples, and quick conversion tables—plus tips for specifying pressure sensors.
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