Description
This handy Checker is easier to use and more accurate than chemical tests kits. It is dedicated to a single parameter. It has single button operation system and easy to use. The large LCD is easy to read and the auto shut-off feature assures the battery will not be drained. It may be small, but it is certainly a big convenience! Ideal for: Drinking water Process water Heating and cooling systems Swimming pools, hot tubs and spas Agriculture Food and Beverage industries Water Hardness Guide Hardness classification Parts per million (ppm) Grains per gallon (gpg)* Very soft <17.1 <1.0 Soft 17.1 to 60 1 to 3.5 Moderately hard 61 to 120 3.5 to 7.0 Hard 120 to 180 7.0 to 10.5 Very hard 180 + 10.5 + * 1 grain per gallon = 17.1 ppm Range 0 to 350 ppm (mg/L) as CaCO 3 Resolution 1 ppm (mg/L) Accuracy ±6 ppm ±6% of reading @ 25°C Light source Light Emitting Diode @ 470nm Light Detector Silicon Photocell Method Adaptation of the EPA recommended Method 130.1. The reaction between calcium, magnesium, and the reagents causes a red-violet tint in the sample. Environment 0 to 50°C; max 95% RH non-condensing Battery type 1.5V AAA Alkaline Auto-off After 10 minutes of non-use Dimensions 86.0 x 61.0 x 37.5 mm Weight 64g Ordering Information HI-735 Checker®HC is supplied with Total Hardness Low Range reagent starter kit (reagents 23 tests), sample cuvette and cap (2), 1mL graduated syringe with tip (2), plastic refilling pipette (1), 1.5V AAA alkaline battery (1), and instruction manual Reagent set HI-735-25 (25 tests) Calibration set HI-735-11 Certified Standard Kit HI-731318 cuvette cleaning cloth x 4 HI-731315 Glass cuvettes and caps x 2 HI-731321 Glass cuvette x 4 HI-731225 Cuvette cap for Checker®HC x 4 HI-93703-50 Cuvette cleaning solution HI-740226 5mL graduated Syringe HI-740157P Plastic refilling pipette x 20 HI-740144P Pipette tip x 10 HI-740143 1mL graduated syringe x 6 HI-740036P 100mL plastic beaker x 10 HI-70436M deionised water (230mL) HI-70436 deionised water (1G)
