This product is not available for new orders. We recommend ordering: CR3000.
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Resumen
The 21X Micrologger featured a self-contained package that had an integrated power supply, keyboard, and display. Its on-board power supply contained alkaline batteries.
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Descripción detallada
The 21X Micrologger featured a self-contained package that had an integrated power supply, keyboard, and display. Its on-board power supply contained alkaline batteries.
The 21X provided 8 differential (16 single-ended) analog input channels, 4 switched excitation outputs, 2 continuous analog outputs, 6 control ports, and 4 pulse counting channels. It had a CS I/O port that was labeled Serial I/O; an SC32A or SC32B was required for communications with a PC. The 21X stored up to 19,296 data points in its internal memory.
Internal software PROMs (Firmware), ac rejection, and temperature testing were ordered at time of purchase. The 21X needed three PROMs for any Windows software to communicate with it. Two PROMs had only three *B windows; three PROMS had nine *B windows. For descriptions of PROMs, see Ordering Info.
Preguntas frecuentes
Número de FAQs relacionadas con 21X: 4
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I would start with checking the 12V and 5V supply of the 21X. Then check the *B Mode of the 21X to read the software PROMs. If you see only four windows in the *B Mode you will not be able to use Campbell Scientific Windows Software to interrogate the 21X with the IBM thinkpad. You will need to up grade the PROMs in the 21X. Contact Campbell Scientific for the PROM up grade.
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The 21XL Rechargeable Battery Pack with solar panel or ac charger is one option. Another option is to use a user-provided deep-cycle marine or car battery with a solar panel to work with a 21X.
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Refer to Section 4. of the 21X Manual that is on our web page or refer to the SM4M/16M Storage Module Manual on how to transfer data to a storage module. The SM192/716 Storage Modules transfer data the same way.
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A practical maximum is to connect one multiplexer per every two control terminals on the datalogger. Control terminals can be shared between multiplexers to increase the number of connected multiplexers. Sharing terminals, however, requires more complex wiring and programming. Users who would like to connect more than one multiplexer per every two control terminals are advised to contact a sales or support engineer at Campbell Scientific for assistance.
Compatibilidad
A typical field-based 21X system consisted of:
• 21X Micrologger
• Weatherproof Enclosure
• Communications Peripheral(s)
• Programming and Communications Software
• Sensors
Especificaciones
- 8 differential (16 single-ended) analog input channels
- 4 switched excitation outputs
- 2 continuous analog outputs
- 6 control ports
- 4 pulse counting channels
- Stored 19,296 data points in internal memory
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