Section 2 Specifications; Technical Specifications - Hach polymetron 9240 User Manual

Section 2

2.1 Technical specifications

Specifications are subject to change without notice.
Measuring range
Accuracy
Repeatability
Average response times at 25°C
with a maximum T =15°C between
channels
Electrode type
Number of channels
Interference phosphate 10 ppm
Sample temperature interference
Typical environment
Suspended solids
Temperature range for storage
Relative humidity
Ambient temperature
Sample temperature variation
pH range of sample
Flow rate
Pressure
Acidity
Power supply voltage fluctuation
Over voltage category
Pollution degree
Altitude
Measurement category
Specifications
Table 1 Technical specifications
PERFORMANCE SPECIFICATIONS
0 to 10,000 ppb freely programmable
0 to 200 ppm with K-Kit option
Non-cationic application:
± 0.1 ppb or ± 5% of reading, whichever is greater
Cationic application:
± 2 ppb or 5% reading, whichever is greater
< 0.02 ppb or 1.5% reading, whichever is greater within 10°C
variation
Concentration step
from one channel to
another
0.1  5 ppb
0.1  50 ppb
0.1  200 ppb
< 0.1  1 ppb (1)
0.1  50 ppb
pH glass electrode
1 to 4
Measurement variation less 0.1 ppb.
< 0.5% / °C
ENVIRONMENTAL REQUIREMENTS
Power station / indoor / demineralized water plant or
instrumentation room
< 2 NTU, no oil, no grease.
-20 to 60°C (2 to 140°F)
10 to 80%
5 to 50°C (41 to 122°F)
Stabilization in 10 mins from 15°C to 30°C
Use the static heat exchanger system when the temperature
difference between samples is higher than 15°C
Non-cationic application: 6 to 10 pH
Cationic application: 2 to 10 pH
6 to 9 L/hour
0.2 to 6 bar (3 - 87 psi)
Less than 250 ppm (equivalent CaCO
± 10%
2 (according to standard EN 61010-1)
2 (according to standard CEI 664)
< 2000 m
Cat II, Class 1 (overvoltage < 1500V)
T90%  10 min
Time to reach accuracy 0.1
Max. temp
ppb or 5%
variation
(°C)
up
3 9 min
3 11 min
3 9 min
3 29 min
15 11 min
)
3
down
27 min
41 min
45 min
36 min
41 min
13