Manual

SPECIFICATIONS

PRECISION AND ACCURACY

Range 0.00 to 5.00 mg/L of Cl

(Free or Total)

Resolution 0.01 mg/L from 0.00 to 3.50 mg/L; 0.10 mg/L above 3.50 mg/L

Accuracy ±0.03 mg/L ±3% of reading @ 25°C

Typical EMC Deviation ±0.01 mg/L

Light Source Tungsten lamp

Light Detector Silicon Photocell with narrow band interference filter @ 525 nm

Method Adaptation of the USEPA method 330.5 and Standard Method 4500-Cl G.

The reaction between chlorine and the reagents causes a pink 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 93701A-T DPD1 Indicator 3 drops

HI 93701B-T DPD1 Buffer 3 drops

HI 93701C-T DPD3 Solution 3 drops

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 1.00

mg/L chlorine and a representative lot of reagents,

an operator obtained with a single instrument a

standard deviation of 0.03 mg/L.