English 3 - Hach POLYMETRON 9240 Basic User Manual

Specifications
Specifications are subject to change without notice.
Specification Details
Measuring range 0 to 10,000 ppb freely programmable
0 to 200 ppm with K-Kit option
Accuracy Non-cationic application: ± 0.1 ppb or ± 5% of reading, whichever is greater
Cationic application: ± 2 ppb or 5% reading, whichever is greater
Repeatability < 0.02 ppb or 1.5% reading, whichever is greater within 10°C variation
Average response
times at 25°C with
a maximum ΔT
Concentration step from
=15°C between
channels
Electrode type pH glass electrode
Number of 1 to 4
channels
Interference Measurement variation less 0.1 ppb
phosphate 10 ppm
Sample < 0.5% / °C
temperature
interference
Typical Power station / indoor / demineralized water plant or instrumentation room
environment
Suspended solids < 2 NTU, no oil, no grease
Temperature range -20 to 60°C (2 to 140°F)
for storage
Relative humidity 10 to 80%
Ambient 5 to 50°C (41 to 122°F)
temperature
Sample Stabilization in 10 mins from 15°C to 30°C
temperature
Use the static heat exchanger system when the temperature difference between samples is
variation
higher than 15°C
pH range of Non-cationic application: 6 to 10 pH
sample
Cationic application: 2 to 10 pH
Flow rate 6 to 9 L/hour
Pressure 0.2 to 6 bar (3 - 87 psi)
Acidity Less than 250 ppm (equivalent CaCO
Power supply ± 10%
voltage fluctuation
one channel to another
0.1 ↔ 5 ppb
0.1 ↔ 50 ppb
0.1 ↔ 200 ppb
< 0.1 ↔ 1 ppb
0.1 ↔ 50 ppb
T90% ≤ 10 min
Time to reach accuracy 0.1 ppb or 5%
Max. temp variation
(°C)
3
3
3
3
15
)
3
up down
9 min 27 min
11 min 41 min
9 min 45 min
29 min 36 min
11 min 41 min

English 3