XR-420/620

Multi-channel Data Logger series

Features of the XR-420:

XR-420 is a small, submersible, autonomous 24-bit data logger
1Hz (XR-420) maximum sampling rate
capacity to support up to six sensors in the standard enclosure
11 or more sensors in custom configurations
Sensors include, Conductivity, Temperature, Depth, pH/ORP, Dissolved Oxygen, Fluorescence, Turbidity, Transmittance, PAR, etc. in any combination
C, T, D and DO are measured to WOCE standards
All calibration constants are stored in the logger
Re-calibration may be carried out by the end-user under suitable conditions
The XR-series logger uses fully integrated Windows^® software, which is compatible with Windows^® 95/98/NT/2000/XP
RS232 or RS485 serial communication allows real-time operation over long cable links using the RBR Windows^® support program
Mooring clamps and cages are optional (see accessories page), and rugged transit cases are recommended

Features of the XR-620 (Profiler):

The XR-620 is the profiling version of the standard XR-420 logger; it includes all of the above features, plus:
- 6Hz maximum sampling rate
- Thresholding capability (logger only samples while submerged)

Click Here for more information on the physical construction of the XR Logger

Click Here for information on our fully integrated Windows® software

Features	XR-420	XR-620
Memory	8MB	8MB
Battery Capacity	1300mAh	1300mAh
External Power Option
Averaging
Telemetry Ready
Real-time Mode
Channel Capacity	6, 11, or 24*	6 or 11*
Communications	RS-232/RS-485	RS-232/RS-485
Engineering Unit Output
Sampling	24 bit	24 bit


Fast Response Thermistor Option
Threshold Function (Wet Switch)
6Hz Profiling

* Uses larger housing (max depth 300m) or two standard logger housings

** Up to 24 channels of temperature with thermistor cables

XR-420/620 Multi-channel Data Logger Datasheet
RBR Data Logger User Manual
Required reader for .pdf files (Adobe® Acrobat® Reader™):

For pricing enquiries please e-mail: info@rbr-global.com