Справочник Пользователя для Hanna Instruments hi 93414
1 2
SPECIFICATIONS
Turbidity
Range
0.00 to 9.99; 10.0 to 99.9 and 100 to 1000 NTU
Range selection
Automatically
Resolution
0.01 NTU from 0.00 to 9.99 NTU;
0.1 NTU from 10.0 to 99.9 NTU;
1 NTU from 100 to 1000 NTU
0.1 NTU from 10.0 to 99.9 NTU;
1 NTU from 100 to 1000 NTU
Accuracy
±2% of reading plus 0.02 NTU
Repeatibility
±1% of reading or 0.02 NTU, whichever is greater
Stray Light
< 0.02 NTU
Typical EMC Deviation
±0.05 NTU
Light Detector
Silicon Photocell
Method
Ratio Nephelometric Method (90°), ratio of scatter and
transmitted light; Adaptation of the USEPA Method 108.1
and Standard Method 2130 B.
transmitted light; Adaptation of the USEPA Method 108.1
and Standard Method 2130 B.
Measuring mode
Normal, Average, Continuous.
Turbidity Standards
<0.1, 15, 100 and 750 NTU
Calibration
Two, three or four-point calibration
Free and total Chlorine
Range Free Cl
2
0.00 to 5.00 mg/L
Total Cl
2
0.00 to 5.00 mg/L
Resolution
0.01 mg/L from 0.00 to 3.50 mg/L; 0.10 above 3.50 mg/L
Accuracy
±0.02 mg/L @ 1.00 mg/L
Typical EMC Deviation
±0.02 mg/L
Detector
Silicon photocell with 525 nm narrow band interference filters
Method
Adaptation of the USEPA Method 330.5 and Standard Method
4500-Cl G. The reaction between chlorine and DPD reagent
causes a pink tint in the sample.
4500-Cl G. The reaction between chlorine and DPD reagent
causes a pink tint in the sample.
Standards
1 mg/L free chlorine, 1 mg/L total chlorine
Calibration
One-point calibration