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Hach sc100 1720E User Manual

Hach sc100 1720E
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Installation
25
Figure 24 Sampling Techniques
3.8 Sample Connections
Sample inlet and drain connections are made on the turbidimeter body. The
sample inlet fitting installed in the body is a ¼-inch NPT
x ¼-inch compression
fitting. One additional fitting supplied with the instrument is a ½-inch NPT-to-hose
fitting for use with ½-inch ID flexible plastic tubing on the drain.
Note: For samples with high solids
content (high turbidity), operate at
the highest flow rate possible. For
samples with low solids content (low
expected turbidity), operate at a low
flow rate (200–300 mL/min).
The required flow rate is 200 to 750 mL/minute (4.0 to 11.9 gal/hour). Flow rate
into the turbidimeter may be controlled with a flow restriction device on the inlet
line. Flow rates below 200 mL/min will reduce response time and cause
inaccurate readings. Flow rates above 750 mL/min will cause the turbidimeter to
overflow, indicating the flow rate is too high.
Figure 25 Sample Connections
Poor
Sediment (Typical)
Air (Typical)
Poor
Good Best
1. Sample Inlet, ¼-28 NPT x ¼-inch Compression fitting 2. Drain, ½-inch NPT fitting 3. Service Drain
POWER
STATUS
1
2
3

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Hach sc100 1720E Specifications

General IconGeneral
Modelsc100 1720E
Measurement ParameterTurbidity
Resolution0.01 NTU
DetectorSilicon Photodiode
Repeatability±1% of reading or ±0.01 NTU, whichever is greater
Power Supply100 - 240 VAC, 50/60 Hz
Measurement PrincipleNephelometric
Light SourceLED
Operating Temperature0 to 50 °C (32 to 122 °F)
Output4-20 mA
Enclosure RatingNEMA 4X/IP66
Accuracy±2% of reading or ±0.02 NTU, whichever is greater

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