Hanna Instruments HI 95724 - Manual (Page 5)

5
Range 0.00 to 5.00 mg/L of Cl
2
(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
Precision ±0.03 mg/L @ 1.00 mg/L
Typical EMC Deviation ±0.01 mg/L
Light Source
Tungsten lamp with narrow band interference filter @ 525 nm
Light Detector Silicon Photocell
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.
Dimensions/Weight 180 x 83 x 46 mm (7.1 x 3.3 x 1.8")/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
SPECIFICATIONS
Precision is how closely repeated measurements
agree with each other. Precision is usually
expressed as standard deviation (SD).
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.
PRECISION AND ACCURACY
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HI 95724 is warranted for two years against defects in workmanship and materials when used
for its intended purpose and maintained according to the instructions.
This warranty is limited to repair or replacement free of charge.
Damages due to accident, misuse, tampering or lack of prescribed maintenance are not covered.
If service is required, contact your dealer. If under warranty, report the model number, date of
purchase, serial number and the nature of the failure. If the repair is not covered by the warranty,
you will be notified of the charges incurred.
If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods
Authorization Number from the Customer Service Department and then send it with shipment
costs prepaid. When shipping any instrument, make sure it is properly packaged for complete
protection.
To validate your warranty, fill out and return the enclosed warranty card within 14 days from the
date of purchase.
WARRANTY
Hanna Instruments reserves the right to modify the design, construction
and appearance of its products without advance notice.