Technical Description
Housed in a portable, self-contained package, the CR3000 Micrologger consists of measurement and control electronics, communication ports, 16-character keyboard, display, power supply, and carrying handle. The integrated display shows 8 lines x 21 characters (64 x 128 pixels).
The CR3000 has a choice of three power-supply base options (alkaline, rechargeable, or no battery). Low power consumption allows the Micrologger to operate for extended time periods on its battery recharged with a solar panel—eliminating the need for AC power. It suspends execution when primary power drops below 9.6 V, reducing the possibility of inaccurate measurements.
The on-board operating system includes measurement,
processing, and output instructions for programming the datalogger. The programming language, CRBasic, uses a BASIC-like syntax. Measurement instructions specific to bridge configurations, voltage outputs, thermocouples, and pulse/frequency signals are included. Processing instructions support algebraic, statistical, and transcendental functions for on-site processing. Output instructions process data over time and control external devices.
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CR3000 Specifications
- Maximum Scan Rate: 100 Hz
- Analog Inputs:
28 single-ended or 14 differential, individually configured
- Pulse Counters: 4
- Switched Excitation Channels:
4 voltage, 3 current
- Digital Ports1:
3 SDM and 8 I/Os or 4 RS-232 COM2
- Continuous Analog Outputs: 2
- Communications/Data Storage Ports:
1 CS I/O, 1 RS-232, 1 parallel peripheral
- Switched 12 Volt: 1
- Input Voltage Range: ±5 Vdc
- Analog Voltage Accuracy:
±(0.04% of reading + offset), 0° to 40°C
- Analog Resolution: 0.33 µV
- A/D Bits: 16
- Temperature Range3
Standard: -25° to +50°C
Extended: -40° to +85°C
- Memory:
2 MB Flash (operating system),
4 MB (CPU usage, program storage, and data storage)
- Power Requirements:
10 to 16 Vdc
- Typical Current Drain:
2 mA (sleep mode)
3 mA (1 Hz sample rate)
10 mA (100 Hz sample rate)
- Dimensions with Low-Profile Base:
24.1 x 17.8 x 7.6 cm
(9.5" x 7.0" x 3.0")
- Dimensions with Alkaline Battery Base:
24.1 x 17.8 x 11.9 cm
(9.5" x 7.0" x 4.7")
- Dimensions with Rechargeable Battery Base:
24.1 x 17.8 x 11.9 cm
(9.5" x 7.0" x 4.7")
- Weight with Low-Profile Base:
1.6 kg (3.6 lb)
- Weight with Alkaline Battery Base:
3.8 kg (8.3 lb)
- Weight with Rechargeable Battery Base:
4.8 kg (10.7 lb)
- Protocols Supported: PakBus, Modbus, DNP3, FTP, HTTP, XML POP3, SMTP, Telnet, NTCIP, NTP, SDI-12, SDM
- CE Compliance Standards to which Conformity is Declared: IEC61326:2002
- Warranty: 3 years
1Certain digital ports can be used to count switch closures.
2I/O ports can be paired as transmit and receive for measuring smart serial sensors.
3Battery bases have different temperature ranges. The rechargeable base option has an operating temperature range of -40° to +60°C. The alkaline base option has a temperature range of -25° to +50°C.
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