Description
MODEL: AD331
AD331 is a waterproof portable meter that reads Conductivity in 5 ranges and temperature.
The autoranging feature of the EC range automatically sets the instrument to the scale with the highest resolution. Measurements are compensated for temperature effect automatically (ATC) or manually (MTC). It is also possible to disable the temperature compensation feature to measure the actual conductivity. The temperature coefficient is user selectable. This instruments also features a measurement stability indicator, GLP capability and a user selectable ID code to uniquely identify the instrument.
AD331 supplied with:
- User manual
- 1.5V AA alkaline battery (4pcs)
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| AD76309 4 ring stainless steel conductivity / TDS probe with built – in temperature sensor | AD70004P: pH 4.01 calibration solutions in 20mls sachets in box of 25 pcs.
AD70007P: pH 7.01 calibration solutions in 20mls sachets in box of 25 pcs. |
| RANGE | 0.00 to 19.99uS/cm
0.0 to 199.9uS/cm 0 to 1999uS/cm 0.00 to 19.99mS/cm 0.0 to 199.9mS/cm -9.9 to 120.0 Celsius |
| RESOLUTION | 0.01 / 0.1 / 1uS/cm
0.01 / 0.1 mS/cm 0.1 Celsius |
| ACCURACY | +- 1% f.s.
+- 0.5 Celsius |
| EC CALIBRATION | Offset 0.0 uS/cm
Slope: 1 point with 6 memorized standards (84.0, 1413uS/cm ; 5.00, 12.88, 80.0, 111.8mS/cm) or custom value |
| TEMPERATURE CALIBRATION | User offset adjustment +- 1 Celsius |
| TEMPERATURE | ATC / MTC from -9.9 to 120 Celsius Compensation |
| TEMPERATURE COEFFICIENT | 0.0 to 10.0%/Celsius |
| REFERENCE TEMPERATURE | Selectable from 15.0 – 30.0 Celsius |
| PROBE | 4 ring EC probe (K=1) with built – in NTC 10K temperature sensor |
| MEMORY | 250 samples on demand with time stamp |
| GLP | Yes with time stamp |
| HOLD FUNCTION | Yes (auto) |
| LOW BATTERY INDICATION | Yes |
| AUTO SHUTT – OFF | Yes |
| POWER SUPPLY | 4 x 1.5V AA Batteries |







