Electro-Chemical Devices (ECD) HYDRA Ammonium - Manual (Page 10)

Page 2 HYDRA NH
4
+ -N
or other coatings on the electrodes keeping maintenance to a minimum.
The rugged HYDRA sensor has a 1 ¼” NPT rear facing thread for attaching an extension/immersion tube
for easy installation from catwalks or handrails. The HYDRA sensor is submersible with an IP68 degree of
ingress protection. A removable electrode guard facilitates easy electrode replacement when necessary.
The HYDRA sensor features internal signal conditioning that allows the sensor to be mounted up to 200
meters from the analyzer.
1.1 FEATURES
1.1.1 Features and Benefits
• Separate, economical, easily replaceable Ammonium, Potassium and pH electrodes
• Fast and Accurate Ammonium Measurement NH4 + or NH4 + -N
• pH and temperature compensated NH4 + -N measurement
• Automatic compensation for K + interference
• Rugged PVC design with removable electrode guard for easy maintenance
• Integral Spray Head Cleaner
Cleans sensor in situ with pressurized air
• Internal Signal Conditioning allows up to 200 meters between Sensor and Analyzer
1.2 Specifications
1.2.1 Hydra Sensor
•
Three Electrode System with spray cleaner
•
Ammonium ISE (NH4 + - N) is the primary measurement
•
Potassium ISE and pH glass electrodes are used for compensation of the NH4 + signal.
•
The Sensor is waterproof with an ingress rating of IP 68.
Measurement Range
•
NH4 + - N: 0.1 to 1000 ppm
•
K + : 0.1 to 10,000 ppm
•
pH: 4-12 pH
Operating Temperature
•
0° C to 40° C (32° F to 104° F)
Min/Max Flow Rate by the sensor
• Minimum 0.1 m/s
• Maximum 3.0 m/s
Wetted Materials
• PVC, PES, PVDF, PTFE, Viton, Glass, 316 SS