Hanna Instruments HI 95734 - Manual (Page 5)

5
Range Free Cl
2
0.00 to 10.00 mg/L
Total Cl
2
0.00 to 10.00 mg/L
Resolution 0.01 mg/L from 0.00 to 3.50 mg/L; 0.10 mg/L above 3.50 mg/L
Precision ±0.06 mg/L @ 3.00 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 DPD reagent
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 180 x 83 x 46 mm (7.1 x 3.3 x 1.8")
Weight 290 g (10 oz.).
REQUIRED REAGENTS
Code Description Quantity/test
HI 93701-0 Free Chlorine Reagent 1 packet
HI 93734B-0 Free & Total Chlorine HR Reagent 5 mL
HI 93734C-0 Total Chlorine HR Reagent 3 drops
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
3.00 mg/L chlorine and a representative lot of
reagent, an operator obtained with a single
instrument a standard deviation of 0.06 mg/L.
PRECISION AND ACCURACY
SPECIFICATIONS
20
REAGENT SETS
HI 93734-01
Reagents for 100 Free or Total Chlorine HR tests
HI 93734-03 Reagents for 300 Free or Total Chlorine HR tests
OTHER ACCESSORIES
HI 95734-11
CAL CHECK™ Standard Cuvets (1 set)
HI 710009 Blue rubber boot
HI 710010 Orange rubber boot
HI 721310 9V battery (10 pcs)
HI 731318 Tissue for wiping cuvets (4 pcs)
HI 731331 Glass cuvets (4 pcs)
HI 731335 Caps for cuvets (4 pcs)
HI 740157 Plastic refilling pipette (20 pcs)
HI 740226 5 mL graduated syringe
HI 93703-50 Cuvets cleaning solution (230 mL)
or
FACTORY CALIBRATION RESET
It is possible to restore factory calibration:
• Enter the calibration mode by holding CAL CHECK
for three seconds.
• Hold ZERO/SET for 10 seconds. The display will
show for 2 seconds “F.CAL” and the parameter
code ("734f" or “734t”) appears. The factory
calibration is automatically restored and the
instrument is ready for measurement.
ACCESSORIES