Beschreibung
SUMMARY
This compact potassium ion meter measures potassium ions by simply dropping a small amount (from 0.3 mL) of sample directly into the analyzer.
LAQUAtwin's unique planar ion electrode with excellent selectivity is used to accurately measure ion concentrations using the ion electrode method, which is less susceptible to the influence of other ions.
It is especially useful for measuring potassium ions in soil and hydroponic nutrient solution.
FEATURES
- Temperature sensor adjustment function
- Auto stability function
- Arbitrary change of low and high concentration calibration points
- Waterproof and dustproof construction (equivalent to IP67)
- Automatic range switching
- Automatic temperature compensation
- Auto hold
- Auto power off (30 minutes)
- Unit change (ppm ⇔ mg/L ⇔ kg/10a) temperature measurement and voltage (mV) measurement modes
- Measured value correction function (multiply/add)
- Remaining battery level display
- Interchangeable sensors
SPECIFICATION
| Measuring principle | Ion electrode method |
| Required sample volume | 0.3 ml or more *1 Measurement is possible from 0.05 mL by using sampling sheet B. |
| Measuring range | 4 to 9900 ppm (mg/L) 2 to 5000 (kg/10a) *2 |
| Resolution | ①0 to 99 ppm: 1 ppm ②100 to 990 ppm: 10 ppm ③1000 to 9900 ppm : 100 ppm |
| Temperature display range | 0 to 50°C/0.1°C |
| Calibration | Max. 2 points |
| Accuracy | ±10% (relative to reading) *3 |
| Main functions | Arbitrary change of low and high concentration calibration points Temperature sensor adjustment function / Auto hold Auto stability function Auto power off (30 minutes) / Remaining battery level indication / Sensor exchangeable |
| Water resistance | IP67*4 |
| Display method | Custom (monochrome) digital LCD display (with backlight function) |
| Operating environment | 5 to 40°C, 85% relative humidity or less (non-condensing) |
| Power source | Two 3 V coin-type lithium batteries (CR2032) |
| Battery life | Approx. 400 hours of continuous use (with backlight off setting)*5 |
| Main material | ABS resin |
| Dimensions and weight | W164 mm x H29 mm x D20 mm (excluding protruding parts) / 50 g (excluding batteries) |
| Accessories | 2 coin-type lithium batteries (CR2032) / Syringe (1 pc.) Instruction manual / Quick manual / Storage case Potassium ion standard solution (150 ppm, 2000 ppm) 1 bottle each (14 mL), Sampling sheet B (5 sheets) |
| Main consumables | (Sensor/Standard solution) S030(Sensor), Y031H(2000 ppm standard solution), Y031L(150 ppm standard solution) |
＊1 Measurement is possible from 0.05 ml or more by using Sampling Sheet B. (Please close the lid when measuring.) Use a different sampling sheet and lid for samples containing fine particles.)
＊2: When the extraction ratio of soil to water is 1:5.
＊3 Repeated repeatability when measuring the same standard solution after calibration with the standard solution.
＊4 Equivalent to IP67: No failure after 30 minutes of penetration at a depth of 1 m. Cannot be used underwater.
＊5 Battery life is about 1/3 when backlight is on, and backlight turns on for about 20 seconds.