It is a Next Generation Float Limnigraph of AQUADATA Elektronic's
MEL-200 Limnigraph is used in rivers, dams,
lakes, irrigation canals, flood controls, waste water
management, coastal design, underground wells and
environmental studies for water level measurements.
MEL-200 automatically stores water level measurement in the desired recording interval and also
MEL-200 has RS-485, 4…20 mA and RS-232 outputs.
The data can be transferred from the RS-232 port and
USB port of the Limnigraph to the computer in excel,
xml and text file formats. If the modem is connected,
it can be transferred to remote computer in excel,
xml and text file formats. This data can be viewed
graphically through the program.
Data logger’s LCD display shows water level, date
and battery values instantly. Parameter values can be
changed and offset values can be adjusted via
keypad.
When the display is activated by pressing the up
button, the display shows the instantaneous water
level value. Flow and volume information can be
reached with up and down keys.
With the laptop, modem and keypad: Station
Number, Station Name, Basin Number, Zone Number,
Equal Level, Date and Time, Data Record Interval
identification operations can be performed. The Level
vs. Flow table can be copied to the datalogger
memory.
The system uses solar panel and gel battery as power source. It continues to work with solar energy for years without the need for an external power source. The system can also be used directly with main power.
main power. It is a Next Generation Float Limnigraph of AQUADATA Elektronic's ISO 9001:2015 Certificate Number: QMS-0107240 We are certified In case of power failure in the system, it stores the data in the Data Logger memory. When the energy is restored, old data can be retrieved in a healthy way. In the event of a power failure in the Data Logger, no deviation in date and time occurs. The backup battery in the Data Logger allows the date and time to proceed normally. When the energy is restored, it continues to record from where it left off.
It is an ideal system for all applications in level or level-related flow and volume measurement in
water and wastewater treatment plants. The error rate is quite low compared to other systems.
| Memory | 8 GB Ring Memory |
| Operation Temp. | -40°C to +80°C |
| Accuracy | ±1 mm |
| Resolution | 1 mm |
| Monthly Time
Deviation | ±1 min/month Automatic leap year calculation |
| Data Recording
Interval | Data Recording Interval can be chosen as (1’, 5’, 10’,
15’, 30’, 60’ and multiples) |
| LCD Display | 128x64 Graphic Dot Matrix / with back light |
| Keypad | 4 Button Keypad (Battery, Instant Level, Instant Date, Flow and Setup
information can be displayed on the screen at the same time.) |
| Level Changing
Detection | Detect and record minimum 25.6 cm/sec level changes |
| Magnetic Encoder Lvl
Measuring Range | 0 cm … 9999.999 m. |
| Setup | Full installation and data collection can be done via GPRS modem
(remote access) or it can be done by computer via USB or RS-232. |
| Interface Ports | RS-232, RS-485, USB 4…20 mA. Analog Output |
| Battery | 3.6 V. Lithium for RTC (Life time of battery 10 years) |
| Data Recording
Systems | 2 Type, Instantaneous and Minute Average. (No data loss
even if battery fails) |
| Alarm Status | Flood and Low Level Alarm |
| Protection | IP67 proteclion.(humidily and dust) |
| Data input | With a laptop, modem and keypad: Station Number entry, Station
Name entry, Basin Number entry, Zone Number entry, Chart Level
entry, Date and Time entry, Data Recording Interval definition
operations can be done and setup. Flow-Abak table can be stored in
datalogger memory. It is copied, the flow rate and level passing
through the channel are monitored on the LCD screen at the same
time. |
| Parameters of m
measurement
changes | Level information can be changed optionally (mm., cm.,
meters, etc.) Also flow information can be changed optionally.
(l / sec, m3 / sec, l / min, m3 / min etc.) |
| Water Level,
Discharge and
amount monitoring | Water level, Flow and Volume can be calculated,
recorded and monitored on the screen by using level
information and Level vs. Flow table |
| Installation Width | Min. 10 cm. up to 100 cm. (Mounting Pipe Diameter) |
| Shaft Encoder
Compatibility | The shaft encoder is compatible with the MEL-200
limnigraph. |
| Data Transfer Speed | 115200 bps, USB: Automatic Boud Rate(ABR) |
| Power Supply | 5,5…35 V. (External) |
| Accessories | Logger, Pulley, Float, Counterweight and beaded rope
works with movement. 20 m with each limnigraph. beaded rope. |
| External Accessories | AQUADATA GPRS, RF Modem |
| Box | Aluminum(170x120x55) mm. |
| Weight | ~1,5 kg. |
| Device Warranty | 3 Years |
| Service Warranty | Lifetime |
