| Weight | 7.1 oz |
|---|---|
| Dimensions | 5.43 × 2.38 × 1.22 in |
| Features | • Exceptional dynamic performance |
| Applications | • Unmanned vehicles |
ECV-IMU Inertial Measurement Unit
Jewell Instruments’ offers ECV-IMU Series initial measurement units which assure high accuracy in a small package. This inertial measurement unit is a cost efficient, low power consuming device which provides stable azimuth, pitch, and roll measurements in dynamic conditions. This sensor consists of 3-axis angular rate gyros, 3-axis accelerometer, 3-axis magnetometer, and optional 2-axis electrolytic tilt sensor. These IMUs have a wide operating range and are factory calibrated. Hence, they offer an accurate and fast output through RS-485.

Related Products
Model 711-2 & A716-2
The models A711-2 (floor-mount), and A716-2 (wall-mount) bolt or clamp to any surface, and are well suited for areas with heavy traffic or vibration. Electronic performance is identical to the model A701-2. Floor-mount models are available with a weatherproof NEMA 4X seal (A711-2 4X), or with an RS-232, RS-422, or RS-485 digital output (D711). D711 units also include onboard memory with a storage capacity of up to 22,000 samples. Units include two switchable gains and two low-pass filter settings and are sensitive to <0.1 µrad. Applications include volcano monitoring, high-precision geotechnical engineering, bridge deflection monitoring, precision metrology, radar platform leveling, and high-accuracy tilt monitoring applications where bolt-on installations are required.
Model 802 Deep Water Submersible Tiltmeter Series
The Model 802 DeepWater Series is the fully submersible cousin of our Model 801 Tuff Tilt Series. Performance features are the same, but the DeepWater housing is machined from a solid piece of 316 stainless steel and incorporates a high-pressure neoprene connector. The pressure rating is 250 bars (2500 meters depth). Higher-pressure versions may be special ordered. Temperature rating is governed by the neoprene connector. Wider temperature range is available with other connector types. Units are available in a variety of configurations including single axis (uniaxial), or dual-axis (biaxial), analog, digital, or 4-20mA outputs.
QFA-150 Quartz Flexure Accelerometer Series
The Jewell Instruments QFA-150 Series Accelerometers are state of the art quartz flexure technology that provides high accuracy, repeatability and stability even in the harshest of environments.
JMA-100/200/300 Analog MEMS Accelerometer Series
The JMA-100/200/300 series is available in single (JMA-100), dual (JMA-200), and triple (JMA-300) axis configurations. This presents a robust and rugged design for industrial use, but with the benefit of low-cost MEMS technology.

Model MD908 ‘IRIS’ Tilt Switch
The IRIS Tilt Switch and Controller is a powerful tilt controller device that combines a digital, dual-axis clinometer and advanced firmware features in one compact unit. This remarkable instrument enables you to measure and respond to rotational movements in any direction concerning the unchanging gravity vector. Units ship standard with a 24-inch hook-up cable. IRIS is an ideal choice for OEM applications, where it can be used to maintain platform levelness, avoid tip-over conditions, prevent out-of-range movement, and perform other control functions.
ECL eCompass Series
The ECL low-power digital compass is designed specifically for commercial, industrial, and military users. The ECL series will be of particular interest to ROV and AUV manufacturers who are concerned with power usage and accurate heading in all types of challenging conditions. In standby mode, it draws a mere 50 microamps and requires only 15 mA in run mode. It provides accurate heading data in less than a tenth of a second from wake up. An extended range tilt sensor is available that allows for ±60° of pitch and roll.
Models 84064-02 & 59579-02 Wide-Angle Ceramic Sensors
The Model 84064-02 Wide-angle Ceramic Tilt Sensor is a high-precision electrolytic tilt sensor with terrific linearity over a full ±75° of angular range. The alumina sensor has a fast warm-up and excellent thermal, mechanical, and long-term stability. It is mounted on an anodized aluminum bracket for strength and easy installation (Model 59579-02 is the same sensor without the mounting bracket). The small and lightweight assembly attaches directly to the elements you want to measure, without unbalancing them or altering their performance. Use the 84064-02 and 59579-02 sensor for wide-angle sensor applications where high performance and linearity over range are key. Use any of our analog or digital signal conditioning units for operating these sensors.
All 84064-02 and 59579-02 Ceramic Tilt Sensors include calibration over ±50° when ordered with Jewell electronics (or specify special/custom calibrated ranges on order).
IRIS-SC Digital Signal Conditioning Card
The IRIS-SC digital signal conditioning card is a powerful control device designed for use with all Jewell miniature tilt sensors. Output is ASCII RS-232 or RS-422(485) serial. Standard firmware includes five user-programmable alarm/trigger thresholds for tilts tilt switch/control applications. When a selected threshold is reached, the circuitry sets the output high
on one of the pins in the H3 control connector. Other firmware features include user-programmable data output rates, sample averaging, autozero (nulling), and baud rate. The IRIS-SC can also log up to 22,000 samples to internal memory for data dump/download on user command.
All IRIS-SC units include calibration when ordered with Jewell miniature tilt sensors (specify calibrated range on order).
Model 820 Shallow Water Tiltmeter Series
The model 820 Shallow Water is a high-precision submersible tiltmeter for use in fresh and saltwater applications. Using an absolute gravity-referenced electrolytic sensor, the 820 delivers superior measurement accuracy with virtually no long-term drift. High-gain units are sensitive to <0.0017 mm/m or better. Output options include analog (±5 VDC, ±10 VDC), current (4-20mA), and digital (RS-232 and RS-422). All units are rated to 200 meters (656.2 ft) waterproof for advanced protection from the elements. Use the 820 “Shallow Water” for structural monitoring, angle measurement and control, platform leveling, and more.
QFA-125 Quartz Flexure Accelerometer Series
The Jewell Instruments QFA-125 Series Accelerometers are state of the art quartz flexure technology that provides high accuracy, repeatability and stability even in the harshest of environments.
DMH Digital MEMS Inclinometer Series
The Jewell Instruments model DMH is a high precision MEMS inclinometer. Units are available with RS-232, RS-422, RS-485 and UART TTL options. All DMH series inclinometers are rated IP67 for waterproofing up to 1m. Custom ranges and output types are also available on request.
ECS eCompass Series
The ECS digital compass represents the state-of-the-art in magnetic compassing. It combines a precision 3-axis solid-state magnetometer and a rugged 2-axis electrolytic tilt sensor to provide accurate heading and tilt measurements over a wide range of environmental conditions. The firmware and signal processing algorithms have been refined and improved over three prior generations of compasses to deliver the ultimate in performance from the available sensor data.















