Hanna Instruments HI 83748 - Manual (Page 5)

5
Range 0.0-5.0 g/L
Resolution 0.1 g/L
Precision SD ±0.1 g/L @ 2.0 g/L
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Light Detector Silicon Photocell
Method The reaction between Tartaric Acid and the reagents causes a yellow/
orange red tint in the sample.
Environment 0 to 50°C (32 to 122°F); max 95% RH non-condensing
Battery Type 4 x 1,5 volt AA batteries / 12 to 20 VDC through voltage adapter
Dimensions 225 x 85 x 80 mm (8.7 x 3.3 x 3.1")
Weight 500 g (17,6 oz.)
REQUIRED REAGENTS
Code Description Quantity/test
HI 83748A-0 Tartaric Acid Reagent A 5 mL
HI 83748B-0 Tartaric Acid Reagent B 6 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 2.0 g/L
tartaric acid and a representative lot of reagent, an
operator obtained with a single instrument a standard
deviation of
0.1 mg/L.
PRECISION AND ACCURACY
16
Battery replacement must only take place in a non-
hazardous area.
The blinking “ ” will appear when the batteries power
gets low.
When batteries are completely discharged, “0% bAtt”
will appear and after two seconds the instrument is
switched off.
Remove the battery cover from the bottom of the
instrument and change the old batteries with 4 fresh
1.5V batteries, paying attention to the correct polarity.
Replace the cover.
BATTERIES REPLACEMENT
REAGENT SETS
HI 83748-20
Tartaric Acid reagents set for wine (20 tests)
OTHER ACCESSORIES
HI 740027P
1.5V AA batteries (10 pcs)
HI 731318 Tissue for wiping cuvets (4 pcs)
HI 731321 Glass cuvets (4 pcs)
HI 731325W Caps for cuvets (4 pcs)
HI 93703-50 Cuvets cleaning solution (230 mL)
HI 740226 5 mL graduated syringe
HI 731340 200 µL automatic pipette
HI 731350 Plastic tips for 200 µL automatic pipette (25 pcs)
ACCESSORIES