The AL200 is an ALERT2 encoder and modulator that provides ALERT2 and ALERT-concentration services. The AL200 meets the ALERT2 standard released and maintained by the National Hydrologic Warning Council (NHWC) and the ALERT Users Group (AUG). This new standard has been designed to improve the accuracy and performance of flood-warning systems and software by providing data faster than traditional ALERT systems.
With integrated sensor inputs, the AL200 allows you to create a minimal ALERT2 transmitter/station, decreasing the cost of a typical flood-warning system. Combining the AL200 with a Campbell Scientific datalogger provides enhanced sensor support, user-defined logic and control, and datalogging capabilities.
When used standalone, the AL200 can generate time and event driven reports for Battery, Clock Status, Tipping Bucket, Analog Input (mV or mA), Digital (SDI-12).
Power Connector | Two-wire, 0.15-in. pitch removable terminal (reverse polarity protected) |
Power Requirements | 9 to 18 Vdc |
Configuration | Device Configuration Utility over USB (settable modulation levels using Device Configuration Utility) |
LEDs | GPS, Serial, Radio (RS-232 and CS I/O share serial activity LED.) |
CS I/O Port | SDC 7, 8,10, or 11 (multiplexed with on-board sensor interface) |
RS-232 Port | DCE |
USB Port | Micro-B |
Temperature Range | -40° to +60°C |
Communication Rate |
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Current Drain |
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Timekeeping Setting via GPS | ±61 μs |
Drift | ±0.17 s/day (without GPS sync, 40°C temperature change) |
Analog Input (SE1) Sensor Interface | 0 to 5 Vdc (16-bit ADC; millivolt or 4 to 20 mA selectable) |
Protocols Supported | ALERT(1) and ALERT2 |
SMA Connector | Active GPS socket (female) antenna |
Test Button | Test transmit and tone |
Dimensions | 16 x 7.7 x 2.2 cm (6.3 x 3.0 x 0.9 in.) |
Sensor Interface |
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Channels Available | Switch closure (P1), single-ended analog (SE1), limited SDI-12 (C1), switched 12 V, ground |
Analog input (SE1) | 0 to 5 Vdc, 16-bit Adc (millivolt or 4 to 20 mA selectable) |
Radio Interface |
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Channels Available | TX, PTT, switched battery, ground |
RCFSK Modulation | 100 to 1000 mV, ±50 mV (software selectable) |
Standards |
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ALERT2 | ALERT2 IND API Specification Version 2.0 (as released by the ALERT2 Technical Working Group dated June 2020) |
Compliance | RoHS and CE |
Product Standard | EN 61326-1:2013 |
Test Standards |
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Nota: lo siguiente muestra información de compatibilidad notable. No es una lista de todos los productos compatibles.
Producto | Compatible | Nota |
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CR1000 (retired) | ||
CR1000X | ||
CR200X (retired) | ||
CR216X (retired) | ||
CR300 | ||
CR3000 (retired) | ||
CR3000 (retired) | ||
CR3000 (retired) | ||
CR310 | ||
CR350 | ||
CR5000 (retired) | ||
CR6 | ||
CR800 (retired) | ||
CR850 (retired) | ||
CR9000X (retired) |
CR200(X) Series | CR800/CR850 | CR1000 | CR3000 | CR5000 | CR9000(X) |
A standalone AL200 can measure:
A software utility used to configure the ALERT210.