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Overview
The 25997 is a version of the CR200X intended for OEMs. It does not have a label so that the OEM can attach their own branding. The 25997 is our lowest-cost data logger available for our OEMs. Its single-ended input channel configuration and packaging are optimal for measuring one or two simple sensors. However, the 25997 does not make differential measurements and is not compatible with SDM devices, multiplexers, or thermocouples. (Refer to the Compatibility information for compatible sensors and peripherals.) Recalibration services are not offered for these data loggers.
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Detailed Description
The 25997 is a version of the CR200X intended for OEMs. It does not have a label so that the OEM can attach their own branding.
The CR200X, our smallest lowest-cost data logger, provides stand-alone operation in harsh, remote environments. This measurement and control data logger reads input from one or two sensors, then transmits the data using communication peripherals. CRBasic, its full programming language, supports simple or complex programming and many onboard data reduction processes. Multiple CR200Xs can be configured as a network or units can be deployed individually.
The CR200X datalogger can measure a variety of sensors including SDI-12 sensors and 4 to 20 mA sensors. However, the CR200X does not make differential measurements and is not compatible with SDM devices, multiplexers, or thermocouples. (Refer to the Compatibility information for compatible sensors, peripherals, and software.) Recalibration services are not offered for the CR200X dataloggers.
Specifications
| Current Drain |
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| A/D Bits | 12 |
| Maximum Scan Rate | Once per second |
| Analog Channels | 5 single-ended (no differential), individually configured |
| Analog Voltage Range | 0 to 2500 mV |
| Analog Voltage Accuracy | ±(0.25% of reading +1.2 mV off set) at -40° to +50°C |
| Measurement Resolution | 0.6 mV |
| Switched Excitation Channels | 2 voltage |
| Switched Battery Port | 1 |
| Pulse Count Channels | 2 |
| Control Ports | 2 |
| Memory |
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| Communication Ports | 1 RS-232 |
| Protocols Supported | PakBus (leaf node only), SDI-12 |
| Operating Temperature | -40° to +50°C (standard) |
| Warranty | 3 years |
| Dimensions | 14.0 x 7.6 x 4.8 cm (5.5 x 3.0 x 1.9 in.) including terminals |
| Weight | 242 g (8.5 oz) |
Compatibility
Sensors
The CR200X can measure a variety of sensors including SDI-12 sensors and 4 to 20 mA sensors. Our CS625 Reflectometer and 109 Thermistor were specifically developed for our CR200(X)-series dataloggers. Other compatible sensors include wind sets, tipping buckets, and barometers. For a complete list of compatible sensors, see the CR200X-series brochure.
The CR200X cannot make differential measurements and is not compatible with thermocouples, our geographic position sensor, fuel moisture/temperature probe, and soil heat flux sensors.
Measurement & Control Peripherals
The CR200X is not compatible with SDM devices and multiplexers.
Communications
The CR200X can communicate with a PC via direct connect, NL201 Ethernet Interface, MD485 multidrop modem, and digital cellular modems. Data can be viewed on the CD295 DataView II Display, Archer-PCon Field PC, or a user-supplied PDA (PConnect or PConnectCE software required).
Enclosures
Applications with minimal power requirements can use the ENC200 enclosure to house the data logger and the #16869 sealed rechargeable battery. The ENC200 cannot house a barometer or a battery that is larger than the #16869. However, an ENC10/12 or ENC12/14 enclosure is adequate for most CR200X-based systems.
Power Supplies
When connected to the on-board charging circuit, the sealed rechargeable battery should be 7 A h or smaller. Using larger batteries with the data logger's built-in charger may result in excessive PC board heating. This is especially a concern when the battery is deeply discharged or failing with a shorted cell. Campbell Scientific also recommends that solar panels be 10 W or less and wall chargers be 1 A or smaller.
Software
The CR200X is compatible with the following software packages:
- Short Cut
- PC200W
- PC400 (version 1.0 or higher)
- LoggerNet (version 2.1 or higher)
- PConnect (version 3.0 or higher)
- PConnectCE (version 2.0 or higher)
- VisualWeather (version 2 or higher)