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HACH COMPANY was established in 1947, in Ames, Iowa, USA. For more than 60 years, Hach has been the world market leader for Analytical Instrumentation for Complete Water Analysis, providing solutions for lab, process and field.

In 2002, GLI, a leading US manufacturer of process electro-chemistry analytical instruments, became part of the Hach Company family.

Water analysis has to be right. Our customers deserve complete, reliable solutions that they can be fully  confident in. Hach is your answer. We make water analysis simpler

Ammonium Probe


Ammonium Probe


The special feature of the probe is the CARTRICAL technology. This provides reliable measured values and considerably reduced maintenance time and costs in comparison with conventional ISE probes. 
Comes as a complete system from a single supplier. The probe is installed on the side of the tank. An SC controller completes the system. It can be extended to include an automatic cleaning unit with a compressor.

PROGNOSYS is now available to provide confidence in your instrument readings. PROGNOSYS will monitor and display the reliability of instrument measurement values and identify when upcoming maintenance tasks are due in an easy-to-read color display.

  • Cost-Effective Trending Information
  • Minimal Maintenance with Simple Cartridge Replacement
  • Simple, Accurate Calibration


Accuracy:5 % of measured value +0.2 mg/L(with standard solutions) NH4–N
Cable Length:Standard: 10 m / 32.8 ft
extension cables available as an option in the following lengths:
5, 10, 15, 20, 30, 50 m (16.4, 32.8, 49.2, 65.6, 98.4, after 164 ft)
100 m (328 ft) max. overall length
Calibration Method:With CARTRICAL plus technology: automatic import of factory calibration data from cartridge to probe by RFID; 1 and 2 point matrix correction
Controller Compatibility:sc 200, sc 1000
Data Transfer:current output, relays and bus communication via sc controller
Dimensions (D x L):3.33 in x 12.6 in (84.5 mm x 320 mm)
Flow:< 4 m/s max.
Installation Angle:45 ° ± 15 ° (vertical in flow direction)
Lower Limit of Detection (LOD):0.2 mg/L NH4–N
Material:Cartridge: Stainless steel (1.4571), PVC, POM, ABS, NBR
Measurement Method:Potentiometric ion-selective measurement
Measurement Range:± 5 % 0.2 mg/l (with standard solutions) NH4-N
0.2 mg/l NH4-N (with standard solutions)
Measuring Interval:Continuous
Operating Temperature Range:-4 to 113 °F
pH Range:5 to 9 pH
Process Connection:1 inch thread
Protection Class:IP 68
Range:0 to 1000 mg/L NH4–N
Repeatability:± 5 % of the measured value + 0.2 mg/L NH4-N
Reproducibility:± 5 % of the measured value + 0.2 mg/L NH4-N
Response Time:< 3 min
Sample Pressure:0.3 bar max.
Sample Temperature:2 to 40 °C (35 to 104 °F)
Sensor Cartridge:With CARTRICAL plus technology: compact housing containing calibrated electrodes for ammonium, potassium, reference system and temperature sensor, all calibrated to each other; typical lifetime six months
Sensor Immersion Depth:1.0 - 10 ft
Storage Conditions:5 to 40 °C (41 to 104 °F) sensor cartridge
Weight:5.25 lbs. (2.38 kg)


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