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YOKOGAWA EXA DO402G, Instruction Manual

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YOKOGAWA EXA DO402G Instruction Manual Download Page 65

6-3-3. Procedure for Water calibration

IM 12J6B3-E-H

Calibration  6-5

YES

NO

YES

NO

YES

NO

NO

YES

The instruments waits for
the reading to stabilize.
(The  display flashes)
When reading Is stable,
the CAL.END message
appears.

Transfer to zero
solution and press YES.

After briefly displaying WAIT, the display

returns to the normal readout.

NO

YES

NO

YES

YES

NO

YES

When the reading is stable, the CAL END
message appears. Press YES.

After briefly displaying WAIT, the display returns to
the normal readout.

MEASURE

MAN.CAL
DISPLAY
HOLD

NO

MODE

YES

ENT

YOKOGAWA

MODE

AIR.CAL

CONTACTS

S1

S2

WASH/S3

FAIL/S4

H2O.CAL

NO

YES

Press YES for single point
adjustment.

YES

Place sensor in

calibration solution

Note: To start calibration
with a zero solution, press
NO (zero calibration must
be activated in service
code 21).

Summary of Contents for EXA DO402G

Page 1: ...Instruction Manual Model DO402G Converter for Dissolved Oxygen IM 12J6B3 E H 5th Edition YOKOGAWA...

Page 2: ......

Page 3: ...3 3 3 AC power 3 5 3 3 4 DC power 3 5 3 3 5 Grounding the housing 3 5 3 3 6 Switching on the instrument 3 5 3 3 7 Changing the supply voltage 3 6 3 4 Wiring the contact signals 3 6 3 4 1 General prec...

Page 4: ...libration method 6 4 6 3 1 Preparation 6 4 6 3 2 Calibration operation water calibration method 6 4 6 3 3 Procedure for water calibration 6 5 6 4 Calibration procedure using manual calibration method...

Page 5: ...and service Yokogawa products and parts are guaranteed free from defects in workmanship and material under normal use and service for a period of typically 12 months from the date of shipment from th...

Page 6: ...IM 12J6B3 E H...

Page 7: ...materials including the outer box and then immediately notify the carrier and the relevant Yokogawa sales office Make sure the model number on the textplate affixed to the top of the display board of...

Page 8: ...ion and peak performance If the unit must be mounted remotely from the sensors WF10 extension cable can be used up to a maximum of 50 metres 150 feet with a BA10 junction box The EXA is delivered with...

Page 9: ...range settings selection of output signals and alarm functions Analog output with adjustable damping time Password protection for each programming level Built in wash timer with remote start possibil...

Page 10: ...ed The chloride concentration value is set manually via the service level The EXA D0402 takes account of the effects of salinity and temperature simultaneously The advantage of this construction is th...

Page 11: ...disabled burn low 3 5 high 22 on mA1 mA2 code 32 Password protection disabled for mains comm serv level code 52 Autoreturn return to measure in 10 minutes enable or disable code 50 Add functions in MA...

Page 12: ...model 32 sensors with 12 19 and 25 mm shaft These sensors are available in many different configurations The sensor is a polarographic sensor and therefore settings of service code 01 has to be change...

Page 13: ...re DO PI control table burn up 22 mA or burn down 0 or 3 5 mA to signal failure E Temperature compensation 0 50 C Sensor types Pt100 or Pt1000 RTD 2k2 NTC PB36 Yokogawa compatible 22 k NTC Ingold comp...

Page 14: ...ature Contact output is also available to signal Hold Active Control function On Off PI pulsed Proportional duty cycle control with integral term PI frequency Proportional frequency control with integ...

Page 15: ...ble terminals for up to 2 5 mm2 finished wires Protection weather resistant to IP65 and NEMA 4X standards Mounting Pipe wall or panel using optional hardware H Data protection Non volatile memory for...

Page 16: ...IM 12J6B3 E H...

Page 17: ...severe weather conditions Maintenance procedures are possible avoiding corrosive environments The ambient temperature and humidity of the installation environment must be within the limits of the inst...

Page 18: ...Wall and pipe mounting diagram Figure 3 4 Internal view of EXA wiring compartment OPTION U Universal pipe wall mounting kit pipe mounting vertical wall mounting pipe mounting horizontal 80 3 15 2x 6...

Page 19: ...ack for these cables 6 Replace the screen shield plate over the lower terminals Always replace the screen plate over the power and contact outputs for safety and to avoid interference 7 Connect the an...

Page 20: ...se The fuse rating is dependent on the supply to the instrument The 250 VAC fuses should be of the time lag type conforming to IEC127 Fuse ratings are 230 VAC 50 mA 100 VAC 100 mA 115 VAC 100 mA 24 VD...

Page 21: ...e rear of the housing using a braided wire cable See figure 3 8 3 3 6 Switching on the instrument After all connections are made and checked the power can be switched on from the power supply Make sur...

Page 22: ...he contact in and output signals and shielded multi core cable for the analog signals 3 4 2 Contact outputs The EXA unit s four contact outputs can be wired to suit your own custom requirements Figure...

Page 23: ...re compensator has two wires with the markings T1 T2 and or 11 12 and must be connected to terminal 11 and 12 The measuring electrode the cathode is marked with IE and or 13 and must be connected to t...

Page 24: ...pensator cathode and anode to terminals 11 12 17 and 18 in this sequence Connect the cable shield when provided to terminal 14 Figure 3 9 Cable gland assembly with tagplate 3 9 Tag plate mounting When...

Page 25: ...gives access to the service menu See table 4 1 LEVEL 3 Service For more advanced configuration selections press the button marked then press NO repeatedly until you reach SERVICE Now push the YES but...

Page 26: ...e required number ENT When the required value has been set using the keys press ENT to confirm the data entry Please note that the EXA 402 does not register any change of data until the ENT key is pre...

Page 27: ...dditional steps are introduced to the configuration and programming operations Maintenance Press MODE key The display shows 000 and PASS Enter a 3 digit passcode as set in Service Code 52 to obtain ac...

Page 28: ...iciency Cell current slope Press YES to fix the selected second line of display YES YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO DISPLAY DISPLAY DISPLAY DISPLAY DISPLAY DISPLAY DISPLAY DISP...

Page 29: ...At this stage the user will be prompted for pass code where this has been previously set up in service code 52 in chapter 5 Air calibration See calibration section 6 H20 calibration See calibration s...

Page 30: ...The HOLD feature must first be activated in the commissioning mode section 5 YES NO MEASURE SETPOINTS RANGE SET HOLD SERVICE MEASURE NO MODE YES ENT S1 S2 WASH S3 FAIL S4 YOKOGAWA MODE WASH CONTACTS M...

Page 31: ...MEASURE NO MODE YES ENT S1 S2 WASH S3 FAIL S4 YOKOGAWA MODE WASH CONTACTS MARKINGS WITHIN ENCLOSURE NOTE Relay S3 must first be set for WASH in service code 42 Manual wash start stop is enabled with...

Page 32: ...3 and 4 when enabled in service codes 42 and 43 Setpoint analogue control output mA2 when enabled in code 31 Note To enable adjustment of setpoints in maintenance mode Service Code 51 must be set to...

Page 33: ...s it may be desirable to select 0 5 mg l range for example and maybe 0 25 C temperature range Service codes 30 to 39 can be used to choose other output parameters on mA output 2 Hold The EXA converter...

Page 34: ...5 2 1 Setpoints ENT ENT ENT ENT ENT ENT ENT ENT repeated keystrokes YES NO NO NO NO NO NO NO YES NO YES NO YES YES NO YES NO YES NO YES NO YES NO SETPOINTS RANGE SET HOLD SERVICE MEASURE H2O CAL DISP...

Page 35: ...hown for setpoint 1 YES NO YES NO YES NO NO NO NO Process Alarms on S 3 and S 4 are only available when enabled in Service Codes 40 49 Analogue control setpoint is only available when enabled in Servi...

Page 36: ...ng 5 2 2 Range YES NO YES NO NO NO NO NO NO YES YES NO YES ENT YES NO See facing page ENT ENT ENT ENT ENT ENT ENT ENT YES NO YES NO YES NO YES NO SETPOINTS RANGE SET HOLD SERVICE MEASURE H2O CAL DISPL...

Page 37: ...by Service Code 31 ENT ENT Choose Range to adjust then set begin scale 0 and end scale 100 of the mA output signal using the and ENT keys Selection of mA output 0 20 4 20 mA is in Service Code 30 ENT...

Page 38: ...NO YES NO YES NO YES NO YES NO NO NO NO NO NO YES YES NO YES NO YES NO YES NO YES YES NO HOLD active last measured value HOLD deactivated return to commissioning menu YES HOLD SETPOINTS RANGE SET HOL...

Page 39: ...2J6B3 E H Parameter setting 5 11 YES NO ENT HOLD HOLD HOLD HOLD HOLD ENT HOLD ENT ENT ENT HOLD values set return to commissioning menu ENT ENT Set HOLD fixed value for mA2 YES Set HOLD fixed value for...

Page 40: ...NO NO NO NO NO NO YES YES NOTE The menu item WASH will not appear unless selected in Service Code 42 NO YES NO Wash system timings are set with the and ENT keys in the setpoint menu ENT ENT ENT ENT EN...

Page 41: ...ICE MEASURE MAN CAL DISPLAY HOLD MODE AIR CAL WASH ENT ENT ENT YES ENT ENT Example Service Code 01 Select Sensor Type for galvanic sensor for polarographic With the ENT keys ENT H2O CAL ENT ENT Nomina...

Page 42: ...aphic sensor with the nominal cell current to be user defined General Note Dissolved oxygen sensors fall into two categories galvanic and polarographic Yokogawa offer both types Settings for Yokogawa...

Page 43: ...fined 9 3 75 A I CELL Sensor output 50 nA 0 0 Polarographic User defined 9 50 nA 02 CHECK Sensor check Zero check disabled 0 0 1 0 Zero check enabled 1 0 5 A Slope check disabled 0 min 40 Slope check...

Page 44: ...emperature display Code 12 T ADJ Adjust offset in temperature measurement when the sensor is at a stable known value Code 13 T MAN Enable and set manual temperature compensation The maximum and minimu...

Page 45: ...mp Comp Pt100 RTD 0 Pt1000 RTD 1 1 PB36 2k2 NTC DO30 2 22k NTC SM31 3 11 T UNIT Temp units Celsius 0 0 Fahrenheit 1 12 T ADJ Temp adjust Adjustment 7 5 C or 13 5 F 13 T MAN Manual TC Automatic tempera...

Page 46: ...eater time and or a smaller step gives mg l greater stability before a calibration can be accepted Use caution however to avoid very long calibration times Code 21 0 CAL Not normally necessary zero ca...

Page 47: ...ge range 0 50 mg l 0 05 mg l or 0 300 21 0 CAL Zero cal Zero calibration disabled 0 0 Zero Calibration enabled 1 22 ZERO Zero entry Zero range galvanic 0 nA Check 0 5 A No check 19 99 A Zero range pol...

Page 48: ...elect burn out signalling of diagnosed failures Code 33 RGmA2 Set proportional band for PI control on mA2 Code 34 tImA2 Set integral time for PI control on mA2 Code 35 36 TABL1 Set up output lineariza...

Page 49: ...acting PI control 0 0 Direct acting PI control 1 32 BURN Burn out No burn out function on mA1 0 0 0 Burn low on fail on mA1 1 Burn high on fail on mA1 2 No burn out function on mA2 0 Burn low on fail...

Page 50: ...activity in progress so the measurement is not live For S3 There is the extra possibility to set up for a wash controller For S4 There is the extra possibility to set up for FAIL indication Digit Y s...

Page 51: ...value 0 Proportional duty cycle 1 Proportional pulse frequency 2 Activation by temperature 3 PI control inactive 0 PI control active 1 42 S 3 Contact S3 Contact 3 inactive 0 4 0 0 Low alarm configura...

Page 52: ...tart working Code 45 RANGE Proportional range is the value above or below the setpoint that generates full output in proportional control PER The time period of the overall pulse control cycle one ON...

Page 53: ...300 0 1 mg l T HYST Temp hyst Temperature hysteresis 0 5 C 0 10 F 0 5 C 45 RANGE Prop control Proportional range 0 50 mg l 5 0 mg l PER Duty cycle Period Duty cycle 5 100 s 10 0 s FREQ Frequency Frequ...

Page 54: ...a continuous contact closure All the other contacts controls are inhibited except HOLD contacts and a Fail signal is transmitted on the outputs when enabled in code 32 Soft fail gives a flashing FAIL...

Page 55: ...ane failure Soft fail 0 Membrane failure Hard fail 1 1 Hard Err 07 Temperature sensor open Soft fail 0 Temperature sensor open Hard fail 1 1 Hard Err 08 Temp sensor shorted Soft fail 0 Temp sensor sho...

Page 56: ...ck calendar for the logbook is set for current date and time as reference MINUT SECND YEAR MONTH DAY Code 62 ERASE Erase logbook function to clear the recorded data for a fresh start This may be desir...

Page 57: ...OMM Communication Set communication Off 0 0 1 Off Set communication On 1 Communication write enable 0 write Communication write protect 1 protect SET Baud rate parity Baud rate 1200 0 3 1 2400 1 4800...

Page 58: ...d to check the QIC factory generated test certificate To use this test feature it is necessary to have the detail provided only in the QIS Quality Inspection Standard or the Service manual NOTE attemp...

Page 59: ...IM 12J6B3 E H Parameter setting 5 31 Code Display Function Function detail X Y Z Default values Test and setup mode 80 TEST Test and setup Built in test functions as detailed in QIS and Service Manual...

Page 60: ...IM 12J6B3 E H...

Page 61: ...the traditional way to calibrate dissolved oxygen analyzers in laboratory environment Accurate results can be obtained if the calibration is performed carefully The water calibration may include a zer...

Page 62: ...ce codes 01 20 and or 22 2 Patience improves the accuracy of calibration When the EXA prompts the user that the preset criteria are met by showing CAL END message it only means that the minimum criter...

Page 63: ...o the normal readout NO YES YES MEASURE MAN CAL DISPLAY HOLD NO MODE YES ENT YOKOGAWA MODE AIR CAL CONTACTS S1 S2 WASH S3 FAIL S4 H2O CAL 12J6B2 22 NO YES 6 2 2 Procedure for Air Calibration Press the...

Page 64: ...d water The zero oxygen solution contains 20 30 grams of sodium sulfite per liter 6 3 2 Calibration operation water calibration method If both zero and span calibration are used it is better to start...

Page 65: ...ay returns to the normal readout NO YES NO YES YES NO YES When the reading is stable the CAL END message appears Press YES After briefly displaying WAIT the display returns to the normal readout MEASU...

Page 66: ...zer The following precautions must be taken into account The sample must be analyzed directly after sampling to avoid change of dissolved oxygen concentration or temperature after sampling The referen...

Page 67: ...he key When the correct value is displayed press ENT to enter the change YES After briefly displaying WAIT the display returns to the normal readout YES Press YES to return to the measuring mode Singl...

Page 68: ...oxygen mg l at various temperatures and elevations based on sea level barometric pressure of 760 mm Hg Temp Elevation metres above sea level C 0 300 600 900 1200 1500 1800 0 14 6 14 1 13 6 13 2 12 7...

Page 69: ...d to measurement functions and maintenance associated with errors Table 7 2 Items for occasional inspection and maintenance of 4 wire dissolved oxygen metering Instrument or apparatus Item Recommended...

Page 70: ...ing a soft damp cloth or soft tissue To deal with more stubborn stains a neutral detergent may be used NOTE Never used harsh chemicals or solvents In the event that the window becomes heavily stained...

Page 71: ...issolved oxygen converter operation If the converter does not operate even when the power is supplied one cause may be a blown fuse inside the converter Examine the fuse by turning off the power suppl...

Page 72: ...re is high CODE 10 setting CODE 10 setting is not correct Examine the sensor cable connection Sensor cable wiring failure status Temperature sensor has failed If the temperature sensor fails abnormal...

Page 73: ...again E16 All modes Call for maintenance interval time exceeded Perform maintenance Reset interval E17 RANGE mode Incorrect span Change the maximum or minimum value In the range setting a value which...

Page 74: ...IM 12J6B3 E H...

Page 75: ...K1543AA 7 EXA 402 case K1541JJ 8 Fuse box of 10 pieces for 230 VAC 0 050 A T K1543AK Fuse box of 10 pieces for 115 VAC 0 100 A T K1543AL Fuse box of 10 pieces for 24 VDC 1 0 A T K1543AM 9 Cable gland...

Page 76: ...IM 12J6B3 E H...

Page 77: ...A2 10 0 mg l 0 0 mg l 50 0 mg l 0 0 ppm 50 0 ppm 0 0 sat 300 sat T1 25 0 C 77 F 0 0 C 30 F 50 C 130 F T2 25 0 C 77 F 0 0 C 30 F 50 C 130 F T3 25 0 C 77 F 0 0 C 30 F 50 C 130 F T4 25 0 C 77 F 0 0 C 30...

Page 78: ...1 0 CAL 0 Off 22 ZERO 0 A nA SLOPE 3 75 50 A nA mA outputs 30 mA 1 1 both 4 20mA 31 OUTP F 0 2 DO Temp D R 0 Reverse control 32 BURN 0 0 both off 33 RG mA2 5 0 mg l only for PI control 34 tI mA2 100 s...

Page 79: ...1 hard fail Err 04 1 hard fail Err 07 1 hard fail Err 08 1 hard fail Err 09 1 hard fail Err 12 1 hard fail Err 16 0 soft fail Err 22 0 soft fail SOFT 0 LCD fail 54 E12 150 55 CALL M 0 Off 56 UNIT 0 m...

Page 80: ...hanges made by software release 1 3 The maximum wash interval was 18 2 hours instead of the specified 36 hours When the slope was manually changed using service code 22 the change had no effect on the...

Page 81: ...ult Check setup Polarographic outside 100 to 500 nA E10 EEPROM write failure Fault in electronics Try again if unsuccessful contact Yokogawa E12 Abnormal measured value Wrong DO sensor or temperaure C...

Page 82: ...2113 Tel 61 2 805 0699 Fax 61 2 888 1844 SINGAPORE Yokogawa Engineering Asia Pte Ltd 11 Tampines Street 92 SINGAPORE 528872 Tel 65 783 9537 Fax 65 786 2606 JAPAN Yokogawa Electric Corporation 2 9 32...

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