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data logger Environment

data logger

Product Code:AXSYS


Need more Info? (514) 354-2511 - 1-800-463-4363

The Stevens AxSys System is a microprocessor-based, low power instrument used for various applications involved in water and wastewater monitoring, recording and controlling. The unit is designed to accept a variety of signal inputs for such variables as water level, flow, temperature, or other similar parameter.

It offers a large memory capacity in a removable Stevens Data Card, which can be brought in from the field and read into a computer in the office. Additional onboard, non-volatile memory is also available for applications where the Data Card is not needed, or the security of redundant data storage is desirable. The sensor interface is configurable to suit the particular application involved. Single parameter analog or digital sensing is possible for monitoring water level, temperature or flow.

Multi-parameter sensing is possible using serial interface capability, either RS-232 or SDI-12. Two opto-isolated output signals are optional, available for alarms, chemical pacing or triggering samplers. Various hardware and operational firmware configurations provide the instrument the versatility to be applied in a wide variety of water and wastewater management applications. The simplicity of the keypad and display make set up and operation easy to understand for users at all levels of experience. Basic instrument operation is consistent from application to application, so there is no longer the need to learn how to operate many different types of instruments.

The instrument has a built-in keypad and display, which facilitates programming in the field without the need for a computer or other programming device. A simple, self-prompting menu leads the user through various programming options, allowing for quick and easy set up and configuration of the unit and applicable sensor.

The instrument is also equipped with a standard RS-232 serial communications port, allowing for transfer of data to a computer or other processing device, as well as access to all programming features remotely, through use of standard telecommunications schemes.

Data can be recorded based on conditions appropriate to the application. Standard linear and threshold triggered recording methods are available. The user can easily access the features desirable to his or her application.

 

 

SPECIFICATIONS
Power Requirements  10-17 VDC, <5 mA standby current
Size  5.3 x 6.7 x 5.15 inches (134 x 170 x130 mm)
Weight  Less than 3 lbs.
Number of Inputs  Single input, analog , digital or serial (multi-drop)
Keypad & Display  2x20 character alpha-numeric display, 4 key integral touch keypad
Recording Intervals  1 , 5, 6, 10, 15, 30 seconds, 1, 5, 6, 10, 15, 30 minutes, 1, 2, 4, 6, 8, 12, 24 hours
Real-time Clock Accuracy +/- 3 minutes/month, leap year correction
Non-volatile Memory  All setup parameters and clock, internal lithium battery
Serial Port  RS-232, minimum +/- 5VDC levels, 300 to 9600 baud
Environment  -40 to +70 degrees Celsius, to 100% humidity condensing in NEMA 4 configuration
On-Board Data Storage  FLASH EPROM, 128K Bytes, Capable of storing 60,000 readings
Data Card  FLASH EPROM, PCMCIA, 256K Bytes, capable of storing 120,000 readings

 

SENSOR INTERFACE CAPABILITIES
Digital
Number of Sensors  One
Sensor Type  Bi-directional pulse count or digital quadrature
Sensor Power  5 or 12 VDC continuous, or 5 VDC auto-switched for quadrature encoder
Maximum Rate 500 pulses per second
Analog
Number of Sensors  One
Input Type  2 wire, 4-20 mA current loop
Sensor Power  24VDC, under firmware control
Accuracy & Resolution .25% accuracy, .1% resolution
Serial
Number of Sensors  Up to 8
Input Type  RS232 or SDI-12
Sensor Power  12 VDC continuous, 5 or 12 VDC under firmware control (switched)
Accuracy & Resolution Sensor dependent

 

FEATURES
  • Instrument for water and wastewater monitoring, recording & controlling
  • Built-in keypad and 2-line alpha-numeric display
  • Data stored internally or on removable PCMCIA FLASH data card
  • Fully portable, NEMA4 enclosure
  • RS-232 port standard for computer access
  • Industry-standard digital, analog, and serial (RS-232, SDI-12) sensor interfaces available

 

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