Product Description
Digital Evaporation Recorder
The LEW Digital Evaporation Recorder is a robust, fully computerized, and self-contained digital system designed to accurately monitor evaporation rates in various hydrological and meteorological applications. Integrated with a data logger, solar power support, and sensor suite, the unit is ideal for continuous field use without dependency on external power sources.
Key Features:
- Self-Contained Design: Includes a digital data logger, solar charging panel, maintenance-free battery, and waterproof housing.
- On-Site Monitoring: View real-time data and program settings using a built-in 16x2 alphanumeric display and membrane keypad without a computer.
- Remote Data Access: Equipped with a GSM modem for SMS-based remote readings and alerts.
- Auto Water Filling (optional): Supports automatic water filling in evaporation pans (available as an add-on).
- Data Transfer & Storage:
- Data saved directly to Micro SD card in Excel format
- Transferable to PC/mobile/tablet for analysis
Specifications:
Parameter | Value |
Number of Channels | 1 |
Operating Temperature | 0C to 50C |
Calibration Factor | Programmable via keypad |
Measurement Accuracy | Better than 0.1% |
Display | 20x4 intelligent LCD display |
Data Interface | RS-232-C |
Memory Slot | Micro SD card (standard 4GB) |
Power Supply | 12V DC with built-in AC/solar charger |
Functional Overview:
- Start/Stop Tests: Simple initiation and termination of logging sessions via keypad.
- Programmable Logging Interval: From 1 minute up to 1440 minutes (24 hours).
- Data Calibration: Supports sensor calibration with programmable factors and null data setup.
- Data Security: Password-protected access for test control and memory clearance.
- Remote Reporting: GSM functionality sends real-time readings via SMS to a user-defined phone number.
Data Output Sample (via Micro SD Card):
Record No. | Date/Time | Depth (cm) | Level (m) |
1 | 03/03/2021 18:48 | 12.52 | 0.210 |
2 | 03/03/2021 19:49 | 12.48 | 0.212 |