نقد و بررسی تخصصی سختی سنج پرتابل Hanna مدل HI 9034
سختی سنج پرتابل Hanna مدل HI 9034
- دارای سه محدوده کاری
- 0 تا 199.9mg/L
- 0 تا 1999mg/L
- 0 تا 19.99g/L
- 100 ساعت کار مداوم با یک بار شارژ
HI9034 Multi-range Portable TDS Meter
The HI9034 is a rugged, portable TDS meter designed for use in a wide variety of environmental conditions. It is supplied with a four-ring conductivity probe to allow for three ranges of measurement. TDS readings are adjusted with Automatic Temperature Compensation (ATC), assuring users of consistent and accurate measurements of total dissolved solids.
Three measuring ranges
Automatic Temperature Compensation
The measurement of total dissolved solids (TDS) indicates the amount of ions dissolved in a solution. The portable HI9034 TDS meter is suitable for use in applications as diverse as wastewater treatment, reverse osmosis, and HVAC. It offers three measurement ranges from 0.0 mg/L to 19.99 g/L with a ±۱% FS accuracy. The HI76302W four-ring probe that is supplied with the meter allows for a wide range of measurements with a single sensor. The probe also features a built-in temperature sensor to allow for Automatic Temperature Compensation from 0 to 50°C (32 to 122°F).
Four-ring Probe – The four-ring probe that comes with the HI9034 offers a versatile and accurate solution for TDS readings. Four ring technology allows for a larger range of measurement within a single probe, whereas two probe technology is somewhat limited in the range in which it can measure. The probe comes with a protective PVC sleeve that assures durability when taking measurements outdoors.
Three Measurement Ranges – HI9034 offers three TDS measurement ranges. Each range has a dedicated button on the face of the meter, allowing users to easily switch between ranges when necessary. The meter is programmed to let the user know when their current reading is out of range, and a new range should then be selected.
TDS Factor – The TDS value in aqueous solutions is directly proportional to conductivity. The ratio between the two parameters depends on the solution being measured. The HI9034 has a set TDS factor of 0.5 that is common for many solutions, meaning that 1 μS/cm is equal to 0.5 mg/L (ppm) of TDS.
Automatic Temperature Compensation – Since temperature has such a dramatic effect on conductivity readings, having a meter that offers temperature compensated readings is invaluable. The probe of the HI9034 features a built-in temperature sensor that automatically accounts for the effects of temperature on a sample’s TDS reading in the range of 0 to 50°C (32 to 122°F). The temperature compensation coefficient, also known as β, is set at 2%/°C; this factor corrects the reading 2% for each degree Celsius change in the sample.
One-point Calibration – The HI9034 can be calibrated at one point in a standard TDS solution. The calibration trimmer located on the top of the meter is easily adjusted to the correct calibration standard.