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9 OPERATOR’S

NOTES

9070

9

OPERATOR’S NOTES

36

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Содержание AQUALERT mAI-9070 Series

Страница 1: ...Waltron LLC AQUALERT DIVISION ___________________________________________ Water Chemistry Measurement Control AI 9070 SERIES HYDRAZINE MONITOR INSTRUCTION MANUAL...

Страница 2: ...s shown in Fig 4 1 14 4 2 QA QC JUNCTION BOX SWITCH 15 4 2 1 Normal Calibration 15 4 2 2 Process Calibration 15 4 2 3 QA QC 15 4 3 TRANSMITTER UNIT 16 4 3 1 ELECTRONICS CHASSIS 16 4 3 2 CIRCUIT BOARD...

Страница 3: ...y flashes reading out 30 6 4 3 Display shows CF 30 6 4 4 Display flashes reading continuously 30 6 4 5 Display shows Hot 30 6 4 6 CALIBRATION FAIL ALARM 30 6 4 7 MALFUNCTIONS OF THE MONITOR 31 REPLACE...

Страница 4: ...ows for either calibration on a process sample or a quality analysis quality control QA QC test The liquid handling section contains a machined PVC head chamber As sample flows to the vapor entrainmen...

Страница 5: ...t light emitting diodes l e d which show the level of hydrazine and operational information as well The operator can see when the instrument is in the calibration mode and when the calibration has not...

Страница 6: ...radiant heat sunlight and drafts Avoid areas containing chlorinating equipment Mount the sensor unit no more than 33 feet 10 meters from its associated sample coolers Mount the sensor unit on the wal...

Страница 7: ...NSTALLATION 2 1 2 TRANSMITTER UNITS Wall mount using four 5 16 or bolts on 9 06 by 9 06 centers Sufficient access space as detailed previously must be left for making cable connections to the transmit...

Страница 8: ...eners turn in either direction 9 Remove the chassis 9 Secure the transmitter case to the wall by four 5 16 or bolts Note Before fitting the chassis unit and connecting it to the main power supply chec...

Страница 9: ...t using sample coolers and pressure reducing equipment see Section 8 2 3 EXTERNAL PIPING CONNECTIONS 2 3 1 INLET The sample should be connected to the sensor unit using o d tubing of stainless steel o...

Страница 10: ...opening the junction box which could admit moisture You may mount the transmitter either next to the sensor unit or up to 330 feet 100 meters away Also allow sufficient space on the transmitter unit...

Страница 11: ...shown in Fig 2 4 You may pull the terminal block away from the pins on the board if required FIGURE 2 4 WIRING THE INTERCONNECT CABLE TO TRANSMITTER Caution The terminal block for the sensor unit con...

Страница 12: ...2 INSTALLATION 9070 Analog Board TB1 Analog Board TB2 Analog Board TB3 9...

Страница 13: ...The choice of two different isolated recorder output signals enables you to use the instrument with a wide variety of recording and data processing equipment The load requirements are shown in Sectio...

Страница 14: ...resistors as shown in the two examples in Fig 2 5 Our example consists of four watt resistors A suitable resistor network kit is listed in Section 7 Your external equipment should be set up using the...

Страница 15: ...ge tip into the gel filling hole Make sure the air vent hole is unobstructed Depress the plunger of the syringe to force gel into the round space between the sensor and outer jackets Continue pressing...

Страница 16: ...r is now in operation The lamp adjacent to the number display indicates the hydrazine level units of measurement in ppb or the sample temperature in degrees Celsius 9 If required turn the range switch...

Страница 17: ...he constant head unit Here the head unit stabilizes the effect of changes in sample pressure and flow rate When the monitor loses sample a small tube overflowing into the constant head on one side ens...

Страница 18: ...the pressure relief valve will open The valve will allow the sample to pass through the heat exchanger thus bringing the standard solution to a similar value to the sample solution 4 2 QA QC JUNCTION...

Страница 19: ...the display 9 Analog Board Middle board containing the analog input and current output circuitry 9 PSU Board Rear board containing the power supply and output relays 4 3 2 CIRCUIT BOARD FUNCTION The m...

Страница 20: ...ntrols mounted on the front circuit board in the chassis protrude through holes in the faceplate Four plastic fasteners secure the chassis to the faceplate A three digit red l e d display shows the hy...

Страница 21: ...razine level being measured within the overall instrument range Remote range indication is provided 2 SET VALUE These buttons and arrows increase or decrease the value displayed on the digital indicat...

Страница 22: ...2 Use in conjunction with the SET VALUE and arrows buttons to set the values at which the alarm relays operate 6 TEMP Pressing STD and CAL together gives an indication of the sample temperature in C 7...

Страница 23: ...osed If the power source fails both external alarms sound to indicate a malfunction 9 Two other sets of relay contacts are provided One set changes over during a calibration sequence and the other set...

Страница 24: ...ly 9 In AUTO as the concentration increases switching to the next range takes place at 100 of the current output giving a 50 output on the upper range 10 in linear output When the concentration decrea...

Страница 25: ...ainers with high purity water and fill them with fresh standard solution Perform a calibration weekly In cases where a weekly calibration is not necessary determine a suitable schedule to suit the ope...

Страница 26: ...5 CALIBRATION PROCEDURE 9070 5 2 CALIBRATION USING PROCESS SAMPLE AS A STANDARD SOLUTION 9 Place junction box selector switch to PROC CAL position 23...

Страница 27: ...as it causes burns and irritation to eyes respiratory system and skin Wear rubber gloves and eye protection In warm weather pressure increases in the bulk container of ammonia Release the cap careful...

Страница 28: ...e dilution The following dilution method produces more accurate results than those obtained by calorimetric laboratory analysis of the final diluted standard 9 Pipette 10ml of the 1000ppm stock soluti...

Страница 29: ...volume Store in a plastic container Warning Prepare the nitric acid solution under a fume hood and take the appropriate precautions when handling concentrated acids 6 1 4 HYDRAZINE SENSOR RECHARGE GEL...

Страница 30: ...l drain 9 Carefully pull the sensor apart and wash the components thoroughly to remove all traces of gel 9 Withdraw the platinum electrode taking care not to damage the electrode or the electrical con...

Страница 31: ...n into the socket at the top of the liquid handling panel 9 Open the shut off valve upstream of the sensor unit and adjust until sample is overflowing from the constant head unit 9 Carry out a calibra...

Страница 32: ...ve the sensor from the sample panel 9 Disassemble sensor outer jacket from center ceramic assembly 9 Clean the sensor of any gel 9 The sensor can be stored as a dry item 6 4 UNSCHEDULED SERVICING Abno...

Страница 33: ...M Calibration Fail condition occurs after a CALIBRATION as the electronics fail to see sufficient output from the hydrazine sensor A number of factors requiring investigation could cause this event 9...

Страница 34: ...stment of the high purity sample Systematically check mechanical components involved with liquid handling for leaks or blockages these problems change the chemical conditions around the sensor Most pr...

Страница 35: ...6 MAINTENANCE 9070 FIGURE 6 2 PART NUMBERS OF PLASTIC TUBING 32...

Страница 36: ...try 8 point Sample Sequencer K1148 004 4 point Manifolded Sampling Valve K1148 008 8 point Manifolded Sampling Valve K1138 633 8 point Sample Inlet Connections 1 8 OD Swagelok K1138 634 8 point Sample...

Страница 37: ...nal standard 20ppb minimum Calibration Time 5 minutes Ambient Temp 32 to 131 F 0 to 55 C Enclosure Finish Corrosion resistant polyurethane Battery Backup 10 years 8 1 Installation Information Sample T...

Страница 38: ...l Conn via access glands as required Power Supply 100 120 200 240Vac Requirements 50 60 Hz 100VA Power Supply Voltage 10 20 Tolerances Frequency min 47Hz max 65Hz Case Protection Transmitter Unit IP55...

Страница 39: ...9 OPERATOR S NOTES 9070 9 OPERATOR S NOTES 36...

Страница 40: ...nltd com Waltron s technical expertise and extensive experience has enabled us to provide personalized solutions to the water quality industry It is Waltron s commitment to provide you with timely and...

Страница 41: ...followed when operating the analyzers in conditions of high pressure and or temperature 9 The chemicals that are used to operate this machine must be stored away from heat protected from temperature...

Страница 42: ...artment within the company returning the items for repair 9 The name telephone number and extension of the individual in the company responsible for returning items for repair 9 A brief description of...

Страница 43: ...t liability through alleged failure or failures of any of its products or their accessories International All international orders will have a warranty period of one year after installation or 18 mont...

Страница 44: ...kages making sure that the number is in agreement with the shipping paperwork If there are any outward signs of damage please retain all containers and packages for inspection by carrier It is general...

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