Dual channel multifunctional acidity/ORP/conductivity/TDS/salinity analyzer HI255

The HI255 dual channel multifunctional acidity/ORP/conductivity/TDS/salinity analyzer allows you to simultaneously measure the pH, TDS, ORP, salinity, and temperature of a sample. When measuring acidity, the instrument automatically compensates for temperature. The instrument can select 1, 2, or 3 calibration points from 5 memory points for automatic calibration, ensuring that the measured values are more accurate.

Dual channel multifunctional acidity/ORP/conductivity/TDS/salinity analyzer HI255

Model number	pH255
Measurement project	Acidity and oxidation-reduction (ORP) technical indicators
measuring range	-2.00 to 16.00pH; -2.000 to 16.000pH; ORP: ±699.9mv; ±2000mv
Resolution	0.01pH 0.001PH 0.1mv (± 699.9mv) 1mv (± 2000mv)
measurement accuracy	± 0.01pH ± 0.002pH ± 0.2mv (± 699.9mv) ± 1mv (± 2000mv)
temperature compensation	Automatic or manual temperature compensation -10.0 to 120.0 ° C pH
Correction method	Automatically select point 1, 2, and 3 for calibration from five calibration points: pH4.01, pH6.86, pH7.01, pH9.86, and pH10.01
Supporting acidity	The electrode can be selected as HI1131, HI1200, or other composite electrodes for measurement purposes according to customer needs
Measurement project	Conductivity and TDS technical indicators
measuring range	EC:0.00 to 29.99μS/cm, 30.0 to 299.9μS/cm, 300 to 2999μS/cm, 3.00 to 29.99mS/cm, 30.0 to 200.0 mS/cm, up to 500 mS/cm (actual conductivity value without temperature compensation function) TDS:0.00 to 14.99ppm(mg/L), 15.0 to 149.9 ppm(mg/L), 150 to 1499 ppm(mg/L), 1.50 to 14.99 ppt(g/L), 15.0 to 100.0 ppt(g/L), up to 400.0 ppt(g/L) ( Actual TDS value without temperature compensation function
Resolution	EC:0.01μS/cm, 0.1μS/cm, 1 uS/cm, 0.01 mS/cm, 0.1 mS/cm TDS:0.01 ppm(mg/L), 0.1 ppm(mg/L), 1 ppm(mg/L), 0.01 ppt(g/L), 0.1 ppt(g/L)
measurement accuracy	EC:± 0.01% ± (0.05 μ S/cm or the larger of one word) of the reading TDS:± 1% ± 0.03 ppm (mg/L) of the reading or the larger of one word)
Correction method	Automatically select one calibration point from six calibration points: 84.0, 1413 μ S/cm, 5.00, 12.88, 80.0, and 111.8mS/cm
temperature compensation	Temperature compensation coefficient within the range of 0 to 60.0 ℃: 0.00 to 6.00%/° C; factory set temperature compensation coefficient: 1.90%/℃
TDS conversion coefficient	Manual adjustment within the range of 0.40 to 0.80 (factory set coefficient: 0.50)
Supporting electrode	HI76310 high-performance four ring conductive electrode with a wide measurement range
Measurement project	Salinity (NaCl) technical indicators
measuring range	0.0 to 400.0% NaCl			Resolution 0.1%	NaCl
measurement accuracy	± 1% of the reading			Correction method	Single point automatic calibration (recommended to use HANNA calibration buffer HI7037L)
Measurement project	Temperature technical indicators
measuring range	Acidity temperature range: -10 to 120.0? C conductivity temperature range: 0.0 to 6.0? C
resolution	0.1? C	measurement accuracy	±0.4 ? C	Matching temperature probe	HI7662 temperature probe
Measurement project	Other technical indicators
data interface	RS-232 data interface	Data Storage	200	Group input impedance	1012Ohm
Usage environment	0 to 50? C 95%RH	Supporting power supply	12VDC	Power size/weight	240×182×74mm/1.1Kg