Waterproof Multi-Parameter, Single Probe Water Testers - HI 991300 & HI 991301
These instruments measure pH, conductivity, TDS and temperature in one easy to use meter, utilising a single probe.
HI 991300
- measures low range conductivity and TDS
HI 991301
- measures higher ranges
Both instruments provide full scale pH readings
Automatic calibration and temperature compensation
Selectable EC/TDS conversion factor
Adjustable conductivity temperature coefficient
Dual level LCD
Battery level and stability indicator
Simple calibration procedure
Probe is housed in a rugged plastic sheath with reinforced 1m rubber cable and stainless steel DIN connector
HI 991300
EC/TDS calibration
Automatic 1 point at 1382ppm (conv.= 0.5), 150ppm (conv.= 0.7), 1413 μS/cm (others)
HI 991301
EC/TDS calibration
Automatic 1 point at 6.44ppt (conv.= 0.5), 9.02ppt (conv.= 0.7), 12880 μS/cm (others)
Both HI 991300 and HI 991301
EC/TDS ratios
Selectable from 0.45 to 0.50 (default), 0.55, 0.60, 0.65, 0.68, 0.70, 0.75, 1.00ppm = 1μS
pH calibration
Automatic 1 or 2 points with 2 sets of memorised buffers (4.01/7.01/10.01 or 4.01/6.86/9.18)
Temp. compensation
pH: Automatic from 0 to 60°C, EC/TDS:Automatic from 0 to 60°C with selectable ß of 0.0, 1.8, 1.9 (default), 2.0, 2.1, 2.2, 2.3, 2.4% per °C
Battery type/life
4 x 1.5V AAA (supplied) / Approx. 500hrs continuous use
Environment
0 to +50°C, 100% RH
Dimensions
143 x 80 x 38mm Wt.320g
Supplied with
multi-parameter probe, batteries, instruction manual, hard carrying case.