Hach-Lange FILTERTRAK FT 660 sc User Manual - Manual (Page 5)

Specifications
Specifications are subject to change without notice.
Specification Details
Range 0.000–5000 milli-Nephelometric Turbidity Units
(mNTU)
(0–5.0 NTU with +10% over-range limit)
Measurement units mNTU, mFTU, NTU, FTU, mg/L, Degree
Over-range limit * +10%
Method compliance USEPA Approved for drinking water applications by
Method 10133
Lowest expected reading 7 mNTU
Accuracy ±3% of reading or ±5 mNTU (whichever is greater)
Repeatability ±0.42% at 50 mNTU
±0.3% at 800 mNTU
Resolution 0.001 mNTU on lowest range
0.1 mNTU on highest range
Calibration Single point at 800 mNTU ±50 mNTU
Calibration frequency Every 3 months (or as per regulations)
Calibration (wet)
verification method Pass/fail criteria or tolerance (standards less than
1000 mNTU): 25–50 mNTU
Pass/fail criteria or tolerance (standards greater than
1000 mNTU): 5%
Calibration (dry)
verification method Verification level: 20–50 mNTU
Performance default: ±5 mNTU of the identified
baseline value
Method precision: less than or equal to 5% relative
standard deviation (RSD)
Signal averaging No averaging, 6, 30, 60 or 90 seconds
Specification Details
Sample light source Class 1 Laser Product with embedded 7.5 mW,
670 nm, Class 3B Laser Source
Complies with 21 CFR 1040.10 except for deviations
pursuant to Laser Notice No. 50, dated June 24,
2007. FDA Laser Accession No. 9911570
Power requirement 10.5 to 13.2 VDC at 1.5 VA
Operating conditions 0 to 40 °C (32 to 100 °F), 5–95% non-condensing
Storage conditions –20 to 60 °C (–4 to 140 °F)
Sample requirements Temperature: 0 to 50 °C (32 to 121 °F)
Flow: 100–750 mL/minute (1.6–11.9 gal/hour)
Recorder output 0–20 mA or 4–20 mA
The output span is programmable over any portion of
the 0.000–1000 mNTU range.
Sample inlet fitting ¼-in. NPT female, ¼-in. compression fitting
Drain fitting ½-in. NPT female, ½-in. hose barb
Tubing requirements Sample inlet: ¼-inch OD rigid or semi-rigid tubing
Drain: ½-inch ID flexible plastic tubing
Dimensions
(W x D x H) 25.4 x 30.5 x 40.6 cm (10 x 12 x 16 in.)
Mounting options Wall mounted or floor stand
Shipping weight Turbidimeter and controller—16.31 kg (13.5 lb)
Turbidimeter only—4.71 kg (10 lb)
ASTM conformance D6698 Standard test method for online measurement
of turbidity below 5 NTU
Limit of detection (LOD) 0.296 mNTU (ISO 15839)
Protection class III
Pollution degree 2/II
English 3