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Hach NA5600 sc Na+ Instalación página 5

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Specification
Interference phosphate
10 ppm
Response time
Stabilization time
Calibration time
Calibration
Minimum detection limit
Auto calibration solution
Reactivation solution
3M KCl electrolyte
Conditioning solution
Concentration change from one
channel to another
0.1 ↔ 5 ppb
0.1 ↔ 50 ppb
0.1 ↔ 200 ppb
< 0.1 ↔ 1 ppb
0.1 ↔ 50 ppb
1
Experiment was done with ultra pure water (estimated at 50 ppt) and 1 ppb standard.
Table 3 Measurement specifications (continued)
Details
Measurement interference is less than 0.1 ppb
Refer to
Table
Startup: 2 hours; Sample temperature variation: 10 minutes from
15 to 30 °C (59 to 86 °F)
Use the optional heat exchanger when the temperature difference
between samples is more than 15 °C (27 °F).
50 minutes (typical)
Automatic calibration: known addition method; Manual calibration:
1 or 2 points
0.01 ppb
Approximately 500 mL of 10-ppm Sodium Chloride is used in
3 months with a 7-day calibration interval.
Container: 0.5 L, HDPE with polypropylene caps
Approximately 500 mL of 0.5M Sodium Nitrate is used in 3 months
with a 24-hour reactivation interval.
Container: 0.5 L, HDPE with polypropylene caps
Approximately 200 mL of 3M KCl electrolyte is used in 3 months.
Container: 200 mL, polycarbon
Analyzers without cationic pump: Approximately 1 L of
Diisopropylamine (DIPA) is used in 2 months at 25 °C (77 °F) for a
sample pH target of 11.2. Approximately 1 L of DIPA is used in
approximately 13 weeks at 25 °C (77 °F) for a sample pH target of
10 to 10.5.
Analyzers with cationic pump: The usage rate of DIPA is
dependent on the selected Tgas/Twater ratio. With a ratio of 100%
(i.e., the volume of sample is equal to the volume of gas) the
consumption of DIPA is approximately 90 mL/day.
Container: 1 L, glass with cap, 96 x 96.5 x 223.50 mm (3.78 x
3.80 x 8.80 in.)
Table 4 Average response times
T90% ≤ 10 minutes
Maximum temperature
difference (°C)
1
4.
Time to accuracy 0.1 ppb or 5%
Up (minutes)
3
3
3
3
15
Down (minutes)
9
27
11
41
9
45
29
36
11
41
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