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Jewell Instruments
Jewell Instruments A701-2 (4X) Platform Tiltmeter
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A701-2 4X: platform tilt; ~0.1 µrad; ±8/±16 V; NEMA 4X. RFQ gain.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Measuring range
A701-2A(4X) High-Gain ±8000 μrad (±0.46°); A701-2B(4X) Mid-Range ±4.0°
Accuracy
Nonlinearity max 1% FRO (2A) / 2% FRO (2B); nonrepeatability 2 μrad static
Output
±8 VDC single-ended or ±16 VDC differential; channels X-tilt, Y-tilt, Temperature
Supply
±11 to ±15 VDC @ +11 and -6 mA; 250 mV ripple max; reverse-polarity protected
Housing
Anodized and painted aluminum
Protection
NEMA 4X / IP65 weatherproof (4X version)
Fits ultra-precision platform tilt where you need a Jewell A701-2 (4X)—weatherproof platform tiltmeter with switchable gains, roughly 0.1 µrad high-gain resolution, ±8 V single-ended / ±16 V differential outputs, and invar leveling legs.
Key advantages
- Resolution — ~0.1 µrad high-gain class
- Ranges — Switchable high/mid gains (e.g. ±0.046°/±0.46° and mid-range class)
- Outputs — ±8 V SE or ±16 V differential; X/Y/Temp
- Package — NEMA 4X / IP65 class; invar leveling legs
- Power — ±11 to ±15 VDC
Typical applications
- Volcano / geodetic tilt.
- Bridge deflection monitoring.
- Radar platform leveling.
Selection guide
- High-gain vs mid-range
- Filter settings
- Cable length
Common mistakes
- Wrong bipolar supply.
- Ignoring filter time constants.
- Mount flexure under legs.
When to RFQ / what to tell us
- Gain version.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 39654 |
| Brand | Jewell Instruments |
| Model | A701-2 (4X) |
| Product type | Platform Tiltmeter |
| Type | Weatherproof platform tiltmeter (A701-2 4X) |
| Ranges | High-gain ±0.046°/±0.46°; mid-range ±0.8°/±8° class (switchable gains) |
| Resolution | ~0.1 µrad (high-gain) / ~1 µrad (mid) |
| Output | ±8 V single-ended or ±16 V differential; X/Y/Temp |
| Package | NEMA 4X / IP65 class; invar leveling legs; ±11–15 VDC |
Documents
FAQ
Q: Resolution? A: About 0.1 µrad on high-gain.
Q: Outputs? A: ±8 V single-ended or ±16 V differential.
Q: What should I send for a quote? A: Gain version, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Measuring range | A701-2A(4X) High-Gain ±8000 μrad (±0.46°); A701-2B(4X) Mid-Range ±4.0° |
| Accuracy | Nonlinearity max 1% FRO (2A) / 2% FRO (2B); nonrepeatability 2 μrad static |
| Output | ±8 VDC single-ended or ±16 VDC differential; channels X-tilt, Y-tilt, Temperature |
| Supply | ±11 to ±15 VDC @ +11 and -6 mA; 250 mV ripple max; reverse-polarity protected |
| Housing | Anodized and painted aluminum |
| Protection | NEMA 4X / IP65 weatherproof (4X version) |
| Ambient temperature | Operating −25 to +70 °C; storage −30 to +100 °C |
| Approvals | NEMA 4X / IP65; RoHS ordering options |
| Sensor type | Absolute gravity-referenced electrolytic platform tiltmeter with invar leveling legs |
| Resolution | <1 μrad (2A High-Gain); 1.0 μrad (2B Mid-Range) |
| Time Constant | 0.15 s |
| Scale Factor | 2A: 1 μrad/mV; 2B: 0.5 °/V |
| Cable | 3 m (10 ft) multiconductor + overall shield, PVC jacket, connectors included |
| Weight | 3 lb (1.4 kg) |