เครื่องวัดหาปริมาณความกระด้างของน้ำ แบบภาคสนาม รุ่น HI97735

HI97735 is an advanced portable photometer for the measurement of total hardness in water up to 750 mg/L (ppm). This meter has a superior optical system that utilizes a reference detector and narrow band interference filters for extremely fast and repeatable measurements.

• No warm up time before taking a measurement
• Tutorial mode for step-by-step instructions
• CAL Check for performance verification and calibration

By passing through various layers of soil and rocks, rain water dissolves some mineral substances. Total harness is indicative of the presence of calcium and magnesium in water. High levels of hardness can cause scaling reducing the efficiency of heat transfer in cooling towers.  Hardness also increases the consumption of soaps and detergents in industrial washing machines or laundries.  The HI97735 uses an adaptation of EPA recommended method 130.1. When the reagent is added to a sample containing magnesium and calcium, the sample will turn a red-violet hue; the greater the concentration, the deeper the color.

The HI97735 has an innovative optical system that offers superior performance in accuracy, repeatability, and the short amount of time it takes to perform a measurement. This compact, waterproof meter is extremely user friendly with a tutorial mode that walks the user graphically, step by step, in performing a measurement. The use of a backlit dot matrix LED allows the use of virtual keys which makes the operation of the meter very intuitive including selecting different units of measure, reviewing GLP data, recalling the last 50 measurements, and customizing the meter to user preferences.

HI97735 is completely waterproof including the cuvette holder that is designed with ridges to protect the optical path from getting scratched by the cuvette and a gasketed battery compartment that holds three common AA batteries. The compact design fits comfortable in the hand for use in the field or on a table for benchtop use. The LCD is 71 mm (2.75″) by 37 mm (1.6″) and is backlit for easy viewing under all conditions.

• LED that generates very little heat

• 8 nm narrowband interference filter that is accurate to +/- 1 nm and offers 25% increase in light efficiency.

• Reference detector that modulates the voltage to LED for consistent light output.

• A concave focusing lens that reduces errors from imperfections in the cuvette

Manual: Download

Specification :

SKU	HI97735
Product Name	Portable Total Hardness Photometer with CAL Check – HI97735
Quote Required	Yes
Hardness, Total Range	low range
Hardness, Total Resolution	1 mg/L
Hardness, Total Accuracy	low range
Hardness, Total Method	adaptation of the EPA Recommended Method 130.1
Photometer/Colorimeter Light Source	LED with 466 nm bandpass filter
Photometer/Colorimeter Light Detector	silicon photocell
Bandpass Filter Bandwidth	8 nm
Bandpass Filter Wavelength Accuracy	±1.0 nm
Cuvette Type	round 24.6 mm diameter (22 mm inside)
GLP	yes
Display	128 x 64 pixel B/W LCD with backlight
Logging Memory	50 readings
Battery Type/Life	1.5 V AA Alkaline (3 pcs.) / > 800 measurements (without backlight)
Environment	0 to 50 °C (32 to 122 °F); max. 95% RH non-condensing
Weight	380 g (13.4 oz.)
Dimensions	142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0″)
Ordering Information	HI97735 is supplied with cuvettes (2), caps (2), plastic inserts for cuvette (2), 1.5V AA batteries (3), instruction manual, and instrument quality certificate.