6
Range
Free Cl
2
0.00 to 5.00 mg/L
Total Cl
2
0.00 to 5.00 mg/L
Cyanuric Acid 0 to 80 mg/L
pH 6.5 to 8.5
Resolution
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
0.1 pH
Accuracy
@25
°
C (77
°
F)
Free Cl
2
±0.03 mg/L ±3% of reading
Total Cl
2
±0.03 mg/L ±3% of reading
Cyanuric Acid ±1 mg/L±15% of reading
pH ±0.1 pH
Light source
Tungsten lamp
Light Detector
Silicon Photocell @525 nm filter
Method
For Cl
2
: Adaptation of the USEPA method and Standard Method 4500‑Cl G. The re‑
action 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. For pH: Phenol red method. The reaction
with reagents causes a red tint in the sample.
Environment
0 to 50
°
C (32 to 122
°
F); max 95% RH non‑condensing
Battery Type
9V (1 pc.)
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
320 g (11.3 oz.)
Required Reagents
Code
Unit
Description
Quantity/Test
HI93701-0
Free Cl
2
DPD Powder Reagent 1 packet
HI93711-0
Total Cl
2
DPD Powder Reagent 1 packet
HI93722-0
Cyanuric Acid 1 packet
HI93710-0
pH 5 drops
SPECIFICA
TIONS