TDS Salinity Meter (Data Logger)REED
The SD-4307 is a Reed conductivity meter compatible with carbon rod electrode type conductivity probe. The Reed SD-4307 TDS salinity meter is powered by custom microprocessor LSI circuit and can records data for a further computer analysis. The meter has 3 conductivity units (µ,S, mS) and shows the salinity level in %. It features a large, easy-to-read LCD display and simple push-button operation. The Reed SD-4307 has a good auto sampling time, from 1 second to 9 hours and can operates in any environment with humidity less than 85% R.H.
REED SD-4307 Features
- Circuit: Custom microprocessor LSI circuit
- Display: 52mm x 38mm LCD with backlight
- Conductivity Units: µ,S, mS
- TD S Units: PPM
- Salt Units: % (of weight)
- Conductivity Probe: Carbon rod electrode
- Auto Sampling Time: 1 second to 9 hours
- Memory Card: SD memory card, 1 GB to 16 GB
- Sampling Time of Display: Approx. 1 second
- Data Output: USB/RS232 PC computer interface
- Temperature Range: 0-50°C (0-122°F)
- Resolution: 0.1°C/0.1°F
- Accuracy: ± 0.8°C/1.5°F
- Operating Temperature: Meter: 0-50°C; Probe: 0-60°C
- Operating Humidity: Less than 85% R.H.
- Power Supply: UM3/AA (1.5 V) x 6 batteries
- Weight: 515g/1.13lb
Meter: 177 x 68 x x45mm (7.0 x 2.7 x 1.9”)
Probe: 22mm Dia. X 120mm Length
and a Hard Carrying Case
- Optional accessories:
2G SD Card (SD-2GB)
USB cable (USB-01)
RS232 cable (UPCB-01)
Data Acquisition Software (SW-U801-WIN)
REED SD-4307 Specifications
- Measurement Range: 0 to 12% Salt (% weight)
- Resolution: 0.01% Salt
- Accuracy: 0.5% Salt value
- Conductivity Range 200µS, 2mS, 20mS, 200mS
- Resolution 0.1µS, 0.001mS, 0.01mS, 0.1mS
- Accuracy ±(2% f.s. +1 digit)
- TDS Range 200, 2000, 20,000, 200,000 ppm
- Resolution 0.1, 1, 10, 100 ppm
- Accuracy ±(2% f.s. +1 digit)
- Salinity Range 0 to 12% salt (% weight)
- Resolution 0.01% salt
- Accuracy ±0.5% salt
- Sampling Time Auto, 1 second to 9 hours
- Power Supply 6 x 1.5V UM3/AA batteries
- Dimensions 177 x 68 x 45mm (7.0 x 2.7 x 1.9”)
- Weight 515g (1.13 lb)
How to use Reed TDS Salinity Meter (Data Logger) (SD-4307)
This Reed Salt/TDS/Conductivity Datalogger meter has 3 measuring functions to choose from: Conductivity, TDS, and Salt. With the instrument powered on, press and hold the Function Button. The display will flash “Cd”, for Conductivity measurements, “tdS” for TDS measurements, and “SALt” for Salt measurements. Release the Function Button to choose the displayed function.
The meter is defaulted to Auto Range mode. Push the Range Button to change the range from 200µS, 2mS, 20mS, 200mS and Auto Range.
If the probe is not immersed in the measuring solution and the display will not show a Zero Value. Press and hold the Up Button for about 10 seconds and the display will then show zero. The Zero function is only valid for the 200µS range and not when the Zero Value is < 2.0µS.
Always plug the Probe Plug into the Probe Socket with your meter swiched off. Now power on the meter by pressing the Power Button. Select the “Cd” function and hold the Probe Handle and fully immerse the Probe Sensor into the measuring solution. Shake the Probe to let the Probe’s internal air bubble drift out from under the sensing head. The top part of the Display will show the conductivity mS (µS) values, and the lower part of the Display will show the temperature value of the solution.
With your salinity meter swiched meter is off, plug the Probe Plug into the Probe Socket, then power on the meter by pressing the Power Button. Using the Function Select, navigate until the “tdS” function icon is displayed on the screen. Hold the Probe Handle and fully immerse the Probe Sensor into the measuring solution. The Display will show the Total Dissolved Solids value.
Before starts any salt measurements, your meter need to have the probe plug plugged into the Probe socket and the “SALt” function selected. The procedure is similar as TDS measurements. The display will show the Salt value (% of weight).
Data Record (Max., Min. reading)
The data record function records the maximum and minimum readings. Press the REC Button once, and a ”REC. MAX.” symbol along with the maximum value will appear on the display. Press the REC Button again, and a “REC. MIN.” symbol along with the minimum value will appear on the display.
Press the REC Button, and the “REC” symbol will appear on the LCD screen, then press the Logger Button, the “REC” symbol will flash while the measuring data and time information is being saved in memory. To set the sampling time, and to toggle the beeper sound on or off, refer to the Advanced Settings section of this manual. Pause the Datalogging; while Datalogging, if press the Logger Button once. While paused, the “REC” symbol will stop flashing. Press the Logger Button again to resume Datalogging, and the “REC” symbol will begin to flash again.Stop Datalogging; while the Datalogger function is paused, press the REC Button for 2 seconds. The “REC” symbol will disappear indicating the Datalogging function has stopped.
Set sampling time is to 0 second; Press the REC Button, and the “REC” symbol will appear on the LCD screen. Press the Logger Button, and the “REC” symbol will flash once and one Beep will sound, at the same time the measuring data along the time information will be saved in memory. The lower Display will show the Position (record) number, which is saved as well. To Change the Position Number; press the Down Button and the lower position number will flash on the display. Press the Up or Down Buttons to set the Position Number (1 to 99) to help identify the measurement location. The lower Display will show P x (x = 1 to 99). After the position number is selected, press the Enter Button to confirm. Stop Datalogging; press the REC Button for 2 seconds, and the “REC” symbol will disappear indicating the Datalogging function has stopped.
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