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A820 Shallow Water Tiltmeter Series with Voltage Output

A820 Shallow Water Tiltmeter Series with Voltage Output

Product catalog summary

Overview: The Model A820 Shallow Water Analog Tiltmeter by Jewell Instruments is a high-precision, submersible device designed for use in both fresh and saltwater environments. It utilizes an absolute gravity-referenced electrolytic sensor to provide accurate measurements with minimal long-term drift. The device outputs a stable ±5 DC voltage, compatible with any VDC input data recorder, and is waterproof up to 200 meters.

Specifications:

Angular Range: High-Gain: ±0.5°, Standard: ±3.0°, Wide-Angle: ±50°
Resolution: High-Gain: <0.0001°, Standard: 0.0006°, Wide-Angle: 0.01°
Repeatability: High-Gain: <0.0002°, Standard: 0.001°, Wide-Angle: 0.02°
Non-Linearity: High-Gain: 1%, Standard: 2%, Wide-Angle: 0.5%
Scale Factor: High-Gain: 0.1°/V, Standard: 0.6°/V, Wide-Angle: 10°/V
Time Constant: High-Gain: 1.75 sec (2-pole Butterworth low-pass filter), Standard: 0.15 sec
Temperature Coefficients: Kz: ±0.0002 °/°C (typical), Ks: 0.04%/°C (typical)
Output: ±5VDC (single-ended)
Channels: Tilt, Temperature
Output Impedance: 270 ohms
Temperature Output: 0.1°C/mV typical (single-ended; 0°C = 0mV)
Power: 8-18 VDC @ 8mA, 250 mV ripple max, reverse polarity protected
Environmental: Operating temperature: -4 to +60°C; Storage temperature: -30 to +100°C; Submersible to 200 meters
Mounting: Two no. 10 stainless steel mounting screws
Dimensions & Weight: 92.1 x 112.4 x 61 mm; 1.6 kg
Materials: 316 Stainless Steel
Housing Connector: 6-pin bulkhead, male plug
Mating Cable: 6-conductor unshielded, 20AWG female receptacle with locking sleeve, neoprene jacket, 24”

Wiring/Pin-out:

Pin 1 (Black): Power Ground
Pin 2 (White): Signal Ground
Pin 3 (Red): Power
Pin 4 (Green): X - Tilt
Pin 5 (Orange): Temperature
Pin 6 (Blue): Y – Tilt

Applications: The A820 is suitable for structural monitoring, angle measurement and control, platform leveling, and more.

Catalog excerpts

A820 Shallow Water Tiltmeter Series with Voltage Output-1

deuieii Instruments The model A820 Shallow Water is a high-precision submersible tiltmeter for use in fresh and salt water applications. Using an absolute gravity referenced electrolytic sensor, the A820 delivers superior measurement accuracy with virtually no long-term drift. High-gain units are sensitive to <0.0017 mm/m or better. Output is a stable ±5 DC voltage, which can be read with any VDC input data recorder. All units are rated to 200 meters (656.2 ft) waterproof for advanced protection from the elements. Use the A820 "Shallow Water" for structural monitoring, angle measurement and control, platform leveling and more. Specifications subject to change without notice on account of continued product development How to Order: Jewell Instruments LLC 850 Perimeter Road, Manchester, NH 03103 [email protected] • www.jewellinstruments.com • Tel (800) 227-5955 L00262 R

Open the catalog to page 1

A820 Shallow Water Tiltmeter Series with Voltage Output-2

deuieii Instruments Dimensions: TRANSVERSE LONGITUDINAL CONFIGURATION 24" LONG CABLE W/FLYING LEADS' UNITS: [mm] IN ‘Custom cable lengths available on request Part Numbers: Part Number Jewell Instruments LLC 850 Perimeter Road, Manchester, NH 03103 [email protected] • www.jewellinstruments.com • Tel (800) 227-5955 L00262 Rev

Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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