5
SPECIFICATIONS
Range
pH
6.5 to 8.5 pH
Free Chlorine
0.00 to 5.00 mg/L
Total Chlorine
0.00 to 5.00 mg/L
Cyanuric Acid
0 to 80 mg/L
Resolution
0.1 pH
0.01 mg/L under 3.50 mg/L Chlorine
0.10 mg/L above 3.50 mg/L Chlorine
1 mg/L Cyanuric Acid
Accuracy
pH
±0.1 pH @ 25°C
Free Cl
2
±0.03 mg/L ±3% of reading @ 25°C
Total Cl
2
±0.03 mg/L ±3% of reading @ 25°C
Cyanuric Acid
±1 mg/L ±15% of reading @ 25°C
Typical EMC Deviation
±0.1 pH
±0.01 mg/L Chlorine
±1 mg/L Cyanuric Acid
Light Source
Tungsten lamp
Light Detector
Silicon Photocell with narrow band interference filter @ 525 nm
Methods
For pH: Phenol red method. The reaction with reagents causes a red
tint in the sample.
For Chlorine: Adaptation of the USEPA method and Standard Method
4500-Cl G. The reaction with reagents causes a pink tint in the sample.
For Cyanuric Acid: Adaptation of the turbidimetric method. The reaction
between cyanuric acid and the reagent causes a white suspension 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 104 x 69 mm (7.6 x 4.1 x 2.7")
Weight
360 g (12.7 oz.).
REQUIRED REAGENTS
Code
Description
Quantity/test
HI 93710-0
pH
Phenol red
5 drops
HI 93701-0
Free Chlorine
DPD Powder Reagent
1 packet
HI 93711-0
Total Chlorine
DPD Powder Reagent
1 packet
HI 93722-0
Cyanuric Acid
Powder Reagent
1 packet