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Jewell Instruments
Jewell Model D820 Shallow Water Digital Tiltmeter
Quote on request
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Jewell D820: ±0.5°/±3°/±50°; RS-232/422; 200 m; NMEA formats. RFQ.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Approvals
RoHS ordering options
Sensor type
Absolute gravity-referenced electrolytic tilt sensor; shallow-water submersible digital tiltmeter
Notes
Specs from Jewell D820 Shallow Water datasheet + D802/D820 series user manual + OD-98822 outline.
Angular Ranges
±0.5° (high gain), ±3° (standard), ±50° (wide angle)
Resolution
<0.0001° (HG); 0.0001° (std); 0.002° (wide)
Nonrepeatability
0.0003° (HG/std); 0.004° (wide)
Fits digital shallow-water tilt monitoring where you need a Jewell Instruments Model D820—electrolytic digital tiltmeter with ±0.5°, ±3° or ±50° ranges, RS-232 or RS-422 output (NMEA XDR and other formats), 7–28 VDC power, and 200 m submersion in 316 SS.
Key advantages
- Ranges — ±0.5° / ±3° / ±50°
- Output — RS-232 or RS-422; NMEA XDR and other formats
- Depth — Submersible to 200 m
- Power — 7–28 VDC @ about 30 mA
- Nonlinearity — 0.1% FRO max
Typical applications
- Digital geotech arrays.
- Marine survey tilt.
- Serial data acquisition.
Selection guide
- RS-232 vs RS-422
- Range / axes
- Baud / format
Common mistakes
- Wrong baud/format.
- Exceeding depth.
- Cable capacitance on long RS-232.
When to RFQ / what to tell us
- Range/axes/interface.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 44470 |
| Brand | Jewell Instruments |
| Model | Model D820 Series Tiltmeter |
| Product type | Tiltmeter |
| Sensor type | Absolute gravity-referenced electrolytic tilt sensor; shallow-water submersible digital tiltmeter |
| Angular ranges | ±0.5° (high gain), ±3° (standard), ±50° (wide angle) |
| Resolution | <0.0001° (HG); 0.0001° (std); 0.002° (wide) |
| Nonlinearity | 0.1% FRO max |
| Output | RS-232 or RS-422; formats NMEA XDR / Trimble TCM / Ashtec / Simple (default X,Y,Temp,S/N) |
| Baud rate | 9600 default; up to 130400 |
| Axes | 1 or 2 axes; channels tilt, temperature, serial number |
| Power | 7–28 VDC @ 30 mA; 250 mV ripple max; reverse-polarity protected |
Documents
FAQ
Q: Interfaces? A: RS-232 or RS-422.
Q: Depth? A: 200 m.
Q: What should I send for a quote? A: Range/axes/interface, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Approvals | RoHS ordering options |
| Sensor type | Absolute gravity-referenced electrolytic tilt sensor; shallow-water submersible digital tiltmeter |
| Notes | Specs from Jewell D820 Shallow Water datasheet + D802/D820 series user manual + OD-98822 outline. |
| Angular Ranges | ±0.5° (high gain), ±3° (standard), ±50° (wide angle) |
| Resolution | <0.0001° (HG); 0.0001° (std); 0.002° (wide) |
| Nonrepeatability | 0.0003° (HG/std); 0.004° (wide) |
| Nonlinearity | 0.1% FRO max |
| Time Constant | 0.15 s |
| Baud Rate | 9600 default; up to 130400 |
| Axes | 1 or 2 axes; channels tilt, temperature, serial number |
| Power | 7–28 VDC @ 30 mA; 250 mV ripple max; reverse-polarity protected |
| Environmental | Operating −4 to +60 °C; storage −30 to +100 °C; submersible to 200 m (656 ft) |
| Materials Weight | 316 stainless steel housing; 1.6 kg (3.5 lb) |