Chell Instruments Ltd. products

The Chell I-Daq is a compact, high accuracy analogue scanner that multiplexes 32 inputs into a single output. The electrical interface is exactly the same as the Pressure Systems pressure scanners. The I-Daq can therefore be used with the Chell CANdaq%, CANdaq or QUADdaq to provide a complete acquisition system. Alternatively, the I-Daq can the be substituted for a pressure scanner in any existing system to provide additional analogue measurements. When used with the ScanDaq, the I-Daq can be used in conjunction with the pressure scanners to provide a multi-input acquisition system.

The Chell T-Daq is an intelligent, compact and high accuracy temperature scanner that multiplexes 8 thermocouple inputs into a single output. The electrical interface is exactly the same as the Pressure Systems DTC pressure scanners. The I-Daq can therefore be purchased with the Chell CANdaq or QUADdaq to provide a complete acquisition system. Alternatively, the I-Daq can be substituted for a pressure scanner in an existing DTC system to provide additional temperature measurements. When used with the QUADdaq, the T-Daq can be used in conjunction with the pressure scanners and the Chell I-Daq to provide a multi-input acquisition system.

Miniature ESP electronic pressure scanners are differential pressure measurement units consisting of an array of silicon piezoresistive pressure sensors, one for each pressure port. The sensors are mounted on a common hybrid glass substrate using a proprietary technique which maximizes long term stability. The outputs of the sensors can be electronically multiplexed through a single onboard instrumentation amplifier at rates up to 20,000 Hz using binary addressing. The multiplexed amplified analogue output is capable of being driven through long lengths of cable to a remote A/D converter.

The MicroDaq-2 is a development of the well established MicroDaq system. The Microdaq is a single box solution providing an ultra-miniature complete pressure scanning unit that outputs engineering unit data over Ethernet and CAN but now comes with the additional features of IEEE 1588 PTPV2 time stamping and an embedded web server for setup.