CATALOG INDEX
BY ALPHABETICAL
ORDER

CATALOG INDEX
BY DEPARTMENT

For more info:
JSi@jsits.com

- [ AXSYS Datalogger ]
- [ Levelogger Series ]
- [ Pressure Transducers:
SDI Depth Sensor ]
- [ Pressure Transducers:
Submersible Depth
Transmitter II ]
- [ Type A-71 Chart
Recorder ]
- [ Type F Water Level
Recorder ]
- [ Unidata 6541 Precision
Water Level instrument ]
- [ Water Level Meter ]

SDI Depth Sensor
Stevens Water Monitoring Systems has introduced a new line of submersible water depth and temperature sensors, the Stevens SDI Depth Sensor. These sensors utilize the SDI-12 interface for operation with the AxSys MPU. The integrated unit is less than 1 1/4 inches in diameter and of stainless steel construction. Its depth sensing accuracy is .05% of full scale, and it is available in ranges from 17.5 feet of water on up to 350 feet.

The SDI Depth Sensor provides both depth and temperature signals in the SDI-12 interface format. Designed for use with the Stevens AxSys, the sensor is capable of integrating into other systems using the SDI-12 smart sensor interface. Up to eight such sensors can be connected to the AxSys MPU, which can log up to eight different parameters.

The SDI Depth Sensor is available with custom cable lengths, and in fully integrated configurations for use with the Stevens AxSys MPU.

Typical applications
The SDI Depth Sensor integrates well with the Stevens AxSys MPU to provide a complete monitoring, controlling and data logging system. Up to eight SDI sensors can be connected to one AxSys MPU, doing any combination of temperature or level monitoring and data logging of up to eight parameters. Four sensors could provide four water level and water temperature readings. Six sensors could provide six level readings and two temperature readings, or any other combination up to eight total readings of level or temperature monitored and recorded in the AxSys MPU. The System can also integrate combinations of other sensors which utilize the SDI-12 sensor interface.

Many applications involve the replacement of older mercury manometer systems, where there is still a need to provide onsite chart recording via a mechanical drive output. The SDI Depth Sensor and AxSys MPU are both fully compatible with the Stevens Electro ChartDrive (ECD) unit. This unit monitors the SDI-12 signals to determine a depth reading from the sensor. This is then translated into a mechanical shaft output for driving chart recorders such as the Stevens A-71.

Specifications

Features 

• SDI-12 serial interface capability
• Accuracy to better than .05%
• Ranges from 17.5 the 350 feet of water level change, full scale
• Rugged stainless steel construction, less than 1.25" diameter
• Low power operation