Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | Digital Structural & Wind Turbine Vibration Monitor |
| Power Supply | 20–30 V DC, max 7 W |
| Built-in Sensor | 3-axis internal accelerometer (X/Y/Z) |
| External Input | Up to 4 external accelerometer channels |
| Frequency Range | 0.1–200 Hz; optional 0.1–1000 Hz for 2 bands |
| Measurement Modes | Acceleration, velocity, displacement; RMS, Peak, Peak-to-Peak |
| Analog Output | Up to 4 × 4–20 mA |
| Relay Output | 4 alarm relays + GL-certified SSD safety relay |
| Communication | USB, RS232, RS485, CANbus, Profibus, Profinet, EtherCAT |
| Safety Compliance | SIL 2, PL-d, GL2010 certified |
| Enclosure Rating | IP54 |
| Operating Temperature | -30°C to +60°C |
| Dimensions | 254 × 130 × 66 mm |
| Weight | Approx. 2 kg |
Product Introduction
PCH 1026 is a digital low-frequency vibration monitor designed for structural and rotating asset safety monitoring. It includes an integrated 3-axis accelerometer and accepts external vibration transducers to capture structural movement data.
The unit provides safety-rated relay outputs and analog signals for control system integration. It runs continuous self-testing and sensor health checks to catch broken wiring or degraded transducers before unsafe vibration events occur.
PCH 1026
PCH 1026
PCH 1026
PCH 1026
Application Scenarios & Field Experience
Part 1 (Narrative Paragraph)
Tall structures and wind turbine towers experience low-frequency resonant vibration that standard high-speed vibration modules miss. Uncontrolled resonance can crack tower welds or damage drivetrains. The PCH 1026 tracks slow structural movement and triggers safety relay trips when vibration exceeds configured thresholds.
Part 2 (Numbered List)
- Wind energy: Onshore and offshore wind turbine tower structural vibration protection
- Heavy industry: Large cooling tower and stack structural health monitoring
- Marine engineering: Offshore platform structural vibration and shock detection
- Civil infrastructure: Large bridge and building low-frequency vibration logging
Part 3 (Short Field Story)
An onshore wind farm saw intermittent tower resonance alarms. Their older vibration monitor could not resolve low-frequency tower sway. Technicians installed a PCH 1026 unit. It captured the resonant frequency during high wind events, triggered the safety relay before damage, and fed vibration data back to the plant control system. No structural damage occurred after the upgrade.
Standard Operating Procedure (SOP) for Quality Control
- Visual & Origin Inspection: Check PCH OEM labeling, serial number, enclosure integrity, connector pins, and seal condition. Verify original factory packaging for new surplus inventory.
- Live Rig Testing: Supply 24VDC power, run built-in self-test, simulate vibration input signals, validate relay trips and 4-20mA output response.
- Firmware Verification: Read and record installed firmware revision; confirm measurement bandwidth matches OEM datasheet values.
- ESD-Safe Packaging: Disconnect test wiring, protect connectors, place unit inside anti-static bag, seal, and pack in rigid shock-resistant carton.
Frequently Asked Questions (FAQ)
Q1: Can PCH 1026 replace older PCH 1020 vibration monitors? A: Partial functional replacement is possible, but I/O mapping and safety logic differ. Re-validate relay trip setpoints and communication mapping before commissioning.
Q2: What warranty do you provide for this unit? A: We offer a 12-month warranty. Warranty covers hardware defects under rated operating conditions. Overvoltage, improper mounting, or unauthorized firmware edits void coverage.
Q3: What is the current stock and shipping timeline? A: We hold limited new surplus inventory. Units ship within 3 business days after order confirmation. Larger project quantities require lead time; confirm stock before finalizing project timelines.
Q4: Can I change measurement bandwidth and alarm thresholds on site? A: Yes, configuration can be updated locally. Always back up existing parameter sets before edits. Incorrect frequency band selection can cause false trips or missed vibration events.
Q5: Can I disconnect or swap sensor wiring while the PCH 1026 remains powered? A: Do not hot-disconnect accelerometer inputs. Live disconnection creates signal spikes that may trigger false safety trips and can damage the front-end signal conditioning circuitry. Cut power before sensor wiring work.
