Hanna-instruments HI 96708 Manual de usuario descargar pdf (Pagina 5)

SPECIFICATIONS

PRECISION AND ACCURACY

Range 0 to 150 mg/L

Resolution 1 mg/L

Accuracy ±4 mg/L ±4% of reading @ 25°C

Typical EMC Deviation ±1 mg/L

Light Source Tungsten lamp

Light Detector Silicon Photocell with narrow band interference filter @ 575nm

Method Adaptation of the Ferrous Sulfate method. The reaction between nitrite

and the reagent causes a greenish-brown tint in the sample.

Environment 0 to 50°C (32 to 122°F); max 95% RH non-condensing

Battery Type 1 x 9 volt

Auto-Shut off After 10' of non-use in

measurement mode

;

after 1 hour of non-use in

calibration mode

;

with last reading reminder.

Dimensions 192 x 102 x 67 mm (7.6 x 4 x 2.6")

Weight 290 g (10 oz.).

REQUIRED REAGENTS

Code Description Quantity/test

HI 93708-0 Powder Reagent 1 packet

PrecisionPrecision

Precision is how closely repeated measurements

agree with each other. Precision is usually

expressed as standard deviation (SD).

AccuracyAccuracy

Accuracy is defined as the nearness of a test

result to the true value.

Although good precision suggests good accuracy,

precise results can be inaccurate. The figure

explains these definitions.

In a laboratory using a standard solution of

75 mg/L chromium VI and a representative lot of

reagent, an operator obtained with a single

instrument a standard deviation of 4 mg/L.

1 2 3 4 5 6 7 8 9 10 ... 23 24

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Hanna-instruments HI 96708 Manual de usuario Pagina 5