เครื่องวัดคลอรีนอิสระและคลอรีนรวม แบบภาคสนาม รุ่น HI97711

• 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

Mulitple Measurement Methods:

• Users can select the use of powder reagents supplied in packets or the use of low cost liquid reagents supplied in a dropper bottle.

Built-in Reaction Timer:

• Waiting the proper reaction time is of key importance when performing colorimetric measurements. The countdown timer displays the time remaining until a measurement will be taken, ensuring consistent results between sample measurements and users.

Large Cuvette Size:

• The sample cell of the HI97711 fits a round, glass cuvette with a 25 mm path length. The relatively long path length of the sample cuvette allows the light to pass through more of the sample solution, ensuring accurate measurements even in low absorbance samples.

Intuitive Dot Matrix Display:

• The HI97711 is designed with a backlit, graphic LCD. With virtual keys, a battery status indicator, and error messages. Users will find the meter interface intuitive and easy to read. A dedicated help key provides information relating to the current meter operation, and can be used at any stage in the setup or measurement process to show contextual help.

Auto-off Protection:

• The meter uses three common AA batteries that allow for about 800 measurements to be taken. The auto-off feature automatically shuts off the meter after 15 minutes of inactivity in order conserve battery life.

Manual :  Download

Specification : 

SKU	HI97711
Product Name	Free and Total Chlorine Portable Photometer with CAL Check
Quote Required	Yes
Free Chlorine Range	0.00 to 5.00 mg/L (as Cl2)
Free Chlorine Resolution	0.01 mg/L
Free Chlorine Accuracy	±0.03 mg/L ±3% of reading
Total Chlorine Range	0.00 to 5.00 mg/L (as Cl2)
Total Chlorine Resolution	0.01 mg/L
Total Chlorine Accuracy	±0.03 mg/L ±3% of reading
Chlorine Method	Adaptation of the EPA 330.5 DPD method
Photometer/Colorimeter Light Source	Light emitting diode
Photometer/Colorimeter Light Detector	silicon photocell with narrow band interference filter @ 525 nm
Bandpass Filter Bandwidth	8 nm
Bandpass Filter Wavelength Accuracy	±1.0 nm
Cuvette Type	round, 24.6 mm diameter (22 mm inside)
GLP	date, time of last calibration
Display	128 x 64 pixel B/W LCD with backlight
Logging Type	automatic logging
Logging Memory	50 measurement
Battery Type/Life	1.5V AA battery (3 pcs.) / > 800 measurements (without backlight)
Automatic Shut-Off	After 15 minutes of inactivity (30 minutes before a READ measurement)
Environment	0 to 50°C (32 to 122°F); relative humidity
Weight	380 g (13.4 oz.) with batteries
Dimensions	142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0″)
Ordering Information	HI97711 is supplied with cuvettes (2), caps (2), plastic inserts for cuvettes (2), 1.5V AA batteries (3), instruction manual, and instrument quality certificate.