21X
21X
End of lifeMicrologger®
No longer available to order
This product is retained for service, documentation, and compatibility information.
Replaced by
- CR3000
Measurement and Control Datalogger
- Model:
- 21X
- Item Number:
- 21X
Overview
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.
Technical Description
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.
Specifications
- -NOTE-
- Note: Additional specifications are listed in the 21X Specifications Sheet.
- Analog Input Channels
- 8 differential
(16 single-ended)
- Switched Excitation Outputs
- 4
- Continuous Analog Outputs
- 2
- Control Ports
- 6
- Pulse Count Channels
- 4
- Memory
- Stores 19,296 data points in internal memory.
Replacement Parts
(6)42816
1/2-Unit Desiccant Bags (quantity of 10)
The 42816 desiccant is used to desiccate small subassemblies. For example, the KH20 Krypton Hygrometer and the base of the CR3000 Measurement and Control Datalogger each require two bags. Multi-packs are recommended for customers who need to desiccate multiple enclosures or systems.
Orderable16003
Wall Charger with Barrel Plug
This wall charger can recharge the battery of a 21XL Micrologger via AC power. One end of the 16003 plugs into into an AC wall socket. On the other end, the charger has a barrel plug that attaches to the 21XL.
Orderable395
Screw #4-40 x .250 Pan Phillips
The 395 is available to replace a lost or damaged screw.
Orderable3315
Type T Thermocouple
This type T, 5 in. thermocouple is attached to a differential channel on several of our data logger wiring panels when the data logger is shipped. It may be ordered to replace a lost or damaged thermocouple.
Orderable6290
#1 Phillips Screwdriver
The 6290 Phillips head screwdriver is commonly used to drive 505 screws into 6044 grommets.
Orderable425
Alkaline D Cell Battery
The 425 provides one alkaline D cell battery.
Orderable
Ships With
(7)6290
#1 Phillips Screwdriver
Orderable3315
Type T Thermocouple
Orderable425
Alkaline D Cell Battery
OrderableQty 8- Insulated terminal cover [#3516]
- Terminal cover's foam [#3526]
395
Screw #4-40 x .250 Pan Phillips
OrderableQty 2- NIST (formerly NBS) traceable calibration sheet
Compatibility
A typical field-based 21X system consisted of:
• 21X Micrologger
• Weatherproof Enclosure
• Communications Peripheral(s)
• Programming and Communications Software
• Sensors
Related Resources
Services Available
- Repair
- No
- Calibration
- No
- Free Support
- No