G623 Submersible Large Angle Tilt Sensor
Reliable and explosion-proof tilt sensor for underwater angle measurement up to 160°, with robust IP68 350 bar sealing.
Key features
- ATEX / CSA certified for Class I, Zone 0 / Div 1 gas atmospheres
- Inductive, non-contact measurement technology
- Calibrated measurement range from 15° to 160°
- Rugged 316 stainless steel housing
- Designed for ROVs and deep submersion (up to 350 bar)
- EMC protection built in
- Wet-mate connector for underwater use
- IP68 sealed for underwater operation up to 350 bar
Performance
The G623 is a heavy-duty submersible tilt sensor designed for extreme underwater environments. It uses Althen’s proprietary EX07 intrinsically safe electronics, certified for use in explosive gas or vapour atmospheres. The sensor is calibrated to the required angular range (15° to 160°), with high linearity and infinite resolution.
It delivers a ratiometric analog signal (0.5–4.5 V) proportional to angular rotation, with a built-in mid-point reference mark for easy installation. Designed for minimal maintenance, the G623's inductive, contactless technology ensures high reliability even in long-term deep-sea operation.
Use Cases
- Tilt feedback in ROVs (Remotely Operated Vehicles)
- Positioning of underwater structures
- Monitoring of subsea pipeline orientation
- Marine and offshore engineering
- Tilt angle sensing in ATEX-rated zones
Environmental Protection
The IP68 rating up to 350 bar makes the G623 suitable for depths of up to 3,500 meters. The housing is precision-machined from 316 stainless steel, ensuring corrosion resistance in saline or aggressive environments.
The G623 also meets EN 61000-6-2 and EN 61000-6-3 EMC requirements.
Do you need this sensor for your next project?
Request a no-obligation quote or send us your contact details for a free, no-obligation consultation. Our sales engineers will then contact you within a maximum of 1 to 2 working days.
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Not exactly what you are looking for? We offer standard sensors, but can also help you with sensors adapted for you or a fully customised measurement solution. Contact us for advice or pricing.
Talk to an expertTechnical Specifications
| Specification | Value |
|---|---|
| Measuring range | 15° to 160° (factory-set, user-specified) |
| Output signal | 0.5–4.5 V ratiometric |
| Supply voltage | 5 VDC ±10% |
| Supply current | 10 mA typ., 12 mA max |
| Linearity / hysteresis error | < ±0.25° (up to 100°) |
| Resolution | Infinite |
| Response time | 250 ms @ 20°C |
| Temperature coefficients | < ±0.01%/°C gain / < ±0.01%FS/°C offset |
| Environmental temp range | -4 °C to +50 °C |
| Sealing | IP68 (tested to 350 bar) |
| Body material | Stainless steel 316 |
| Body diameter | 40 mm |
| Body length | 81 mm axial, 90 mm radial |
| Flange diameter | 69 mm |
| EMC compliance | EN 61000-6-2 / EN 61000-6-3 |
| Intrinsic safety | Ex ia IIC T4 Ga / AEx ia IIC T4 Ga (CSA approved) |
| MTBF | 350,000 hours @ 40 °C |
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