Jewell Instruments LLC products

Little Dipper is an in-place inclinometer system for monitoring slopes, embankments, deep excavations, tunnels, tank foundations, retaining walls and other types of ground movement. Installed as a string of vertical or horizontal sensors inside inclinometer casing, or by direct burial, this instrument provides a continuous record of ground displacement. Fiberglass rods connect the sensors inside the casing, and fins or universal pivots couple the sensors to the casing walls. Little Dipper’s on-board electronics accept a wide input voltage range and drive long cables without signal loss. The waterproof and non-corrodible ABS sensor housing also makes the Little Dipper a popular tool for underwater tilt measurements in shallow marine applications. Select analog voltage output (biaxial) or 4-20 mA output (uniaxial only).

The Model 904-T Clinometer Pak unites our Model 900 Biaxial Clinometer with a weatherproof NEMA 4X (IP65) enclosure for indoor or outdoor applications that demand mechanical and environmental protection. Choose the high-gain, standard or wide-angle version, each with a different angular range. Clinometer Pak’s internal circuitry accepts a wide input voltage range and provides stable, low-impedance analog outputs for measurement by dataloggers, PLC’s, digital voltmeters and other recording devices. A temperature sensor is included as a standard feature. Options include viscous damping and 0-5 Volt output. This product is also available in a submersible stainless steel enclosure.

The Clinometer Pak 420 is the packaged version of our Tulip 4-20 mA clinometer. Its rugged aluminum enclosure provides mechanical and environmental protection for indoor or outdoor use. This uniaxial instrument is current loop powered, so measurements can be made over long cables using an economical 2-wire pair. It also measures temperature using a built-in thermistor. Use it to monitor the angular position of conveyers, booms, ramps and machinery; perform antenna tilt error corrections; and track the pitch and roll of ships, buoys, ROV’s and towfish.

The D1000 series data acquisition modules provide an isolated 15-bit measurement and discrete digital I/O bits for controlling solid state relays or sensing contact closures. The D1000 ADC performs an analog to digital conversion and linearization of sensor input data and communicates in ASCII format via RS232 or RS485. The module`s ADC continuously converts data at the rate of 8 conversions per second and stores the latest result in the buffer. The D1000 series ADC modules can also be mounted on a DIN-Rail using the MK-1 mounting kit.

The DIN-100 Modbus data acquisition modules (DAQ) are designed for systems based on the Modbus RTU protocol. The modules convert analog input signals to digital data and transmit via RS485 to a controller which may be a computer or other processor-based equipment. The DAQ modules provide data acquisition from a wide variety of sensors and perform all signal conditioning, scaling, linearization and conversion to either linearized ASCII data values or Modbus percent of full scale binary values.

The D2000 ADC module series data acquisition modules provide an  isolated 15-bit measurement ADC and discrete digital I/O bits for controlling solid state relays or sensing contact closures. The D2000 ADC performs an analog to digital conversion and linearization of sensor input data and communicates in ASCII format via RS232 or RS485. The D2000 series features include user-selectable scaling the ADC output data to desired engineering units and the ability to linearize a nonlinear sensor transfer function. See the Programming Supplement for more details and examples. The D2000 series modules can also be mounted on a DIN-Rail using the MK-1 mounting kit.

The D5000 series are low-cost data acquisition (DAQ) modules that provide direct connection to four analog signals of the same input type and range to any host with an RS232 or RS485 port. The DAQ analog input modules provide direct connection to a wide variety of sensors and perform all signal conditioning, scaling, linearization and conversion to engineering units. In addition, the D5000 DAQ can scale linear analog input signals to desired engineering units. For example: 4-20mA to 0-100%. While the D5000 DAQ series analog input modules are isolated input to output, the inputs are not isolated channel to channel. The D5000 DAQ series analog input modules can also be mounted on a DIN-Rail using the MK-1 mounting kit.

The D5000M Modbus data acquisition (DAQ) uses the Modbus RTU protocol for communication. The D5000M are complete four-channel data acquisition systems that are well suited to applications such as SCADA, data monitoring, data loggers, PLC`s, process controllers and instrumentation. The modules convert an analog input signal to engineering units and transmit in ASCII data format to any host or PLC with RS485 or RS232 serial ports. The D5000M Modbus DAS series analog signal input types include Voltage, Current and Temperature.