Hydro Instruments 210 Series, Инструкция по эксплуатации

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Combined Chlorine Residual:
3H
2
O + 2NH
2
Cl + 2KI
↔
2KCl + I
2
+ 2NH
4
OH + ½O
2
2H
2
O + NHCl
2
+ 2KI
↔
2KCl + I
2
+ NH
4
OH + ½O
2
5H
2
O + 2NCl
3
+ 6KI
↔
6KCl + 3I
2
+ 2NH
4
OH + 1.5O
2
Second, the pH must be reduced to the range of 4.0 to 4.5 in order to prevent any dissociation of the
Hypochlorous Acid or the Potassium Chloride (KCl).
5. Basic Specifi cations
Temperature Range: 0º to 50º C (32º to 122º F).
Sample Water Flow Rate: 500 ml/min (8 gal/hr) ideal
150 ml/min (2.4 gal/hr) minimum
Sample Pressure: 5 psig (0.3 bar) maximum at inlet point.
Sample Supply: Continuous. Electrodes must be kept wet with fresh water.
Speed of Response: 4 seconds from sample entry to display indication.
T
90
: Approx. 90 to 120 seconds
T
100
: Approx. 10 minutes.
Sample Water: Metal ions or certain corrosion inhibitors may eff ect analyzer operation.
Range: 0 to 0.1 to 0 to 20 mg/l (PPM). Field adjustable.
Power Consumption: 10 W max.
Power Requirements: 120VAC, 50/60 Hz or 240VAC, 50/60 Hz, single phase.
Accuracy: 0.003 mg/l or +/-1% of range, whichever is larger.
Sensitivity: 0.001 mg/l (1 ppb)
Input Signals: (5) Analog 4-20 mA.
Output Signals: (4) Isolated 4-20 mA Analog (Res, pH, Temp, Turbidity, or Control).
Digital Communication: Modbus RS-485 Two-Way
pH Sensor Input: Included.
Temperature Sensor Input: Included (for 10K Ohm thermistor).
Relay Contacts (4): 10 Amps @ 120 VAC or 24 VDC, resistive load, 5 Amps @ 240 VAC, resistive
load.
Reagent Requirements
Free Chlorine (pH Compensated): None.
Free Chlorine (not pH Compensated):
pH Buff er or CO
2
gas.
Total Chlorine: pH Buff er or CO
2
gas
and Potassium Iodide.
Chlorine Dioxide: pH Buff er and Glycine.
Bromine Chloride: pH Buff er or CO
2
gas and Potassium Iodide.
Iodine: pH Buff er or CO
2
gas.
P(
(/#L /#L
n
&)'52%
(YPOCHLOROUS!CID$ISSOCIATION#URVES
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5