Hi guys,
Ive recently got a EC Meter / PPM meter, its a CF ECO STICK(truncheon)(tech spec below)
Problem 1 is, i did a test on plain tap water and nothing. No leds nothing(is this normal?) I added salt to the water to see if the device actually did anything and it gave me a reading.
Problem 2, i got 1 litre of plain tap water, and added the appropriate mix per litre of sensi grow A (2.4ml per Ltr) and sensi grow B (2.4ml per Ltr), I then did a reading of the water, I was getting a reading of 0.4 - 0.6 (280 - 420ppm on the truncheon), according to the bottle i should be getting 800ppm from the amount of food i added.
Am I missing something, or is my plant food out of date, i bought it a few years ago but never opened. Thanks T
Technical Specifications:
Range: 4-52CF
0.4-5.2EC
280-3640ppm (EC x 700)
200-2600ppm (EC x 500)
Accuracy ± 4% of reading
Temperature compensation: automatic
Operating temperature: 0-50 °C (32-122°F)
Calibration: factory calibrated
Power source: 3 x 1.5V(AA batteries)
Auto sense: auto on & auto off
Bookmarks