ECD DO82 Instructional Manual

HYDRA-DS NO
3
-N Page 11
1.1 FEATURES
 Separate, economical, easily replaceable Nitrate, Chloride, and optional pH electrodes
 Fast and Accurate Nitrate Measurement NO
3
or NO
3
-N
 Automatic compensation for Cl interference
 Temperature compensated NO
3
-N measurement
 Rugged PVC design with removable electrode guard for easy maintenance
 Integral Spray Head Cleaner
o Cleans sensor in situ with turbulence caused by pressurized air
 Internal Signal Conditioning allows up to 200 meters between Sensor and Analyzer
1.2 HYDRA-DS SENSOR SPECIFICATIONS
 Three Electrode System with spray cleaner
 Nitrate ISE (NO
3
-N) is the primary measurement
 Chloride ISE is used for compensation of the NO
3
signal
 Optional pH or NH
4
+
electrode
 The Sensor is waterproof with an ingress rating of IP68
1.2.1 MEASUREMENT RANGE
 NO
3
-N
0.1 to 1000 ppm
 Cl
0.1 to 10,000 ppm
 pH
2-12 ph
 NH
4
+
0.1 to 1000 ppm
1.2.2 OPERATING TEMPERATURE
 0 °C to 40 °C (32 °F to 104 °F)
1.2.3 MIN/MAX FLOW RATE BY THE SENSOR
 Minimum 0.1 m/s
 Maximum 3.0 m/s
1.2.4 WETTED MATERIALS
 PVC, PEC, PVDF, PTFE, Viton, Glass, 316 SS
1.2.5 ACCURACY
 ± 3% of reading, dependent on Calibration
1.2.6 RESPONSE TIME
 T90 approximately 1 minute
1.2.7 ELECTRODE LIFE
 ISEs: 4-6 months, typical
 pH electrode: 6-12 months, typical

ECD DO82 Specifications

General

Brand	ECD
Model	DO82
Category	Transmitter
Language	English