Improved accuracy and performance for flood warning systems
Resumen
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.
Ventajas y características
- Easily configurable with graphical, point-and-click software
- Integrated sensor inputs for greatly reduced station cost
- Onboard measurement of supply voltage, clock/GPS quality
- Event or schedule driven reports for battery, clock, tipping bucket, voltage, current, SDI-12, high/low state
- Screw terminals for power, radio, and sensors for easy cabling
- Easy access test features for transmission, radio power, and alignment
Imágenes
Ficheros CAD:
Descripción detallada
Channels Available and Their Functions
- P1: Tipping Bucket / Switch Closure Count Accumulator
- SE1: Single-ended Analog Input, millivolt or milliamp
- C1: Digital for limited SDI-12
- SW12: Switched power for powering sensors
- G: Ground
ALERT2 Reporting
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).
Especificaciones
| 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 |
|
| Current Drain |
|
| 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 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 |
|
| 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 |
|
| Channels Available | TX, PTT, switched battery, ground |
| RCFSK Modulation | 100 to 1000 mV, ±50 mV (software selectable) |
Standards |
|
| 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 |
|
Compatibilidad
Nota: lo siguiente muestra información de compatibilidad notable. No es una lista de todos los productos compatibles.
Dataloggers
| Producto | Compatible | Nota |
|---|---|---|
| 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) |
Información de compatibilidad adicional
Datalogger Considerations
CRBasic Dataloggers
| CR200(X) Series | CR800/CR850 | CR1000 | CR3000 | CR5000 | CR9000(X) |
 |
|
|
Standalone, Sensors Attached Directly To AL200
A standalone AL200 can measure:
- Analog sensors with 0 to 5 V or 0 to 20 mA output
- SDI-12 sensors
- Float / contact switch sensors
- CS451 and CS456 Pressure Transducers
- CS475, CS476, and CS477 Radar Water-Level Sensors
- CS460 Pressure Transducer
- SR50A Sonic Ranging Sensor
- CS11 AC Current Sensor
Documentos
Folletos producto
Conformidad
Descargas
ALERT Configuration Tool v.1.1 (47.7 MB) 30-06-2016
A software utility used to configure the ALERT210.
Casos de aplicación
The Panama Canal was using an outdated water-level system until the Panama Canal Authorities (ACP)......leer más
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ALERT2 is a modern communication protocol that improves upon 40 years of tradition within the......leer más