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7.0 ENGINEERING DOCUMENTATION
7.1 S
PECIFICATIONS
7.1.1 S
ENSOR
Three Electrode system with spray cleaner, Nitrate ISE (NO3-N) is the primary measurement. The Chloride ISE is used
to compensate the NO3 signal. An optional pH electrode is available for pH measurement. The Sensor is waterproof
with an ingress rating of IP 68.
Measurement Range
NO
-N: 0.1 to 1000 ppm
3
Operating Temperature
0°C to 40°C (32°F to 104°F)
Min/Max Flow Rate
Minimum 0.1 m/s
Maximum 3.0 m/s
Wetted Materials
PVC, PES, PVDF, PTFE, Viton, Glass, 316 SS
Accuracy
± 3% of reading, dependent on Calibration
Response Time
T90 1 minute
Electrode Life
ISEs: 4-6 months, typical
pH electrode: 6-12 months, typical
7.1.2 T80 T
RANSMITTER
7.1.2.1 I
S
NPUT
PECIFICATION
Digital protocol, all ECD S80 sensors
Optional analog to digital converter, 5 inputs [mV+, mV-, solution ground, temp + temp – (100 K-ohm)]
7.1.2.2 I
R
NPUT
ANGES
-1.00 – 15.00 pH
pH
-1500 – +1500 mV
ORP
000.1 – 999.9, Auto Ranging: ppb ↔ ppm ↔ ppT (thousand)
pION
Dissolved Oxygen 000.1 – 999.9, Auto Ranging: ppb ↔ 20.00 ppm, % SAT, mg/L
0.000 – 2.000, Auto Ranging: µS ↔ mS ↔ S
Conductivity
TDS 0.00 – 9999ppm
0.00 – 50.00 MΩ
Resistivity
0 – 4000 NTU/FNU, 0 – 9999 ppm, mg/l, 0 – 100% % solids
Turbidity
100 K-ohm TC, -30°C – 140°C
Temperature
HYDRA-DS NO
-N
3
Page 36
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