Hach-Lange NH4D sc Ammonium Sensor - Manual (Page 5)

5
Section 1 Specifications
These are subject to change without notice.
General Information
Measuring method
Ion-selective electrodes for ammonium and potassium, pHD reference electrode
and temperature sensor
Measuring range 0.2 to 1000 mg/l [NH
4
–N]
Minimum detection limit 0.2 mg/l [NH
4
–N]
Precision 5% of the measured value + 0,2 mg/l 1
Reproducibility 5% of the measured value + 0,2 mg/l 1
Response time (90%) < 2 min
Measuring interval Continuous
pH range pH 5 to pH 9
Calibration methods
Sensor code for sensor cartridge
1 and 2-point matrix correction
Power consumption 1 Watt
Power supply via sc controller (sc100 and sc1000)
Data transfer via sc controller (sc100 and sc1000)
Ambient data
Typical environment Municipal waste water applications
Storage temperature
Sensor: –20 to 60 °C (–4 to 140 °F)
Sensor cartridge: 5 to 40 °C (41 to 104 °F)
Operating temperature Air: –20 to 45 °C (–4 to 113 °F)
Sample temperature +2 to 40 °C (35 to 104 °F)
Max. flow velocity < 4 m/s
Max. sensor immersion
depth/pressure
Can be immersed 0,3 to 3,0 m/max. pressure: 0,3 hPa (4,4 psi).
Max. air pressure for cleaning unit
option
3,10 bar (45 psi)
General sensor information
Sensor dimensions
360,9 mm x 48,3 mm (14,21 x 1,9 in) (L x Ø)
See Figure 1 on page 6 .
Sensor cable length
Standard: 10 m
Optional extension cables are available in the following lengths:
5, 10, 15, 20, 30, 50 m. Total maximum length: 100 m
Sensor weight Approx. 1326 g (46,77 oz)
Wetted materials
Only for immersed installation: Sensor body made of stainless steel 316 with
ends made of Ryton PPS
®2 .
Installation angle 45° +/– 15° vertical in flow direction
1 with standard solutions
2 Ryton ® is a registered trademark of Phillips 66 Co.