The AL200 is an ALERT2 encoder and modulator that supports ALERT2 and ALERT-concentration services. It meets the ALERT2 standards maintained by National Hydrologic Warning Council (NHWC) and ALERT Users Group (AUG). ALERT2 improves the accuracy and performance of flood warning systems and software, by providing you with faster data transfer, forward error correction, and a TDMA architecture.
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 data logger provides enhanced sensor support, user-defined logic and control, and data logging capabilities.
Read MoreWhen 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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Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
Product | Compatible | Note |
---|---|---|
CR1000 (retired) | ||
CR1000X | ||
CR200X (retired) | ||
CR216X (retired) | ||
CR300 | ||
CR3000 | ||
CR310 | ||
CR350 | ||
CR5000 (retired) | ||
CR6 | ||
CR800 (retired) | ||
CR850 (retired) | ||
CR9000X (retired) |
The AL200 supports ALERT1 and ALERT2 protocols.
A standalone AL200 can measure:
A software utility used to configure the ALERT210.
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