user manual of GE-134 Dissolved Oxygen Meter
Contents
1. Two group of alarm relay 3A 240VAC 6A 28VDC or 120VAC 9 power supply 220VAC 10 5041Hz power consumption lt 3W Or 24VDC power consumption lt 1W Or 12VDC power consumption lt 1W 10 The dimension 96x96x130mm 11 Installation way panel installation The tapping size of electronic unit 91x91mm 12 Waterproof Wall Box Size 300 H 200 CW 167 D mm 13 The electronic unit weight 0 6kg 14 Operating conditions a Ambient temperature 10 60 C b Relative humidity no bigger than 90 c There are no corrosive gas around d There are no other magnetic fields or electromagnetic fields which produce the negative effect except the earth magnetic field 4 The function features X Intelligence the value of single chip microprocessor to complete measurements of dissolved oxygen temperature measurement and compensation X Man machine dialogue the menu operation structure the user can follow the onscreen prompts action X With multi parameter display Simultaneous display of dissolved oxygen values temperature and working conditions X Software to set output 0 10mA or software selection 4 20mA output 3s A YITE TECHNOLOGY __http www ayite net X Range and alarm free to set lower limits upper and lower limit alarm prompts X Two relay control switch volume control adjustable hysteresis X Since the password The user can set or modify the password so access to the result of misuse Service To provide2. and traditional slave machine check whether the recorder and slave machine sampling are correct or not so as to detect the fault Input the password before entering the submenu Afterwards one warning will appear informing the users that they should guarantee any change in the output current will not bring any negative effect before they use the meter Press Enter key to continue There will display the present output current on the screen Press 7 and keys to change the output current Press Enter to stop the changing Press Enter again to input the output current what you need Notes When this function is used the output current is set by the user and it will change within the full range guarantee that the adjustable regulator connected on the output circuit or microcomputer will not produce any negative effect upon the control output Check and Set Output current Current output Input signal test Alarm relay test Change password 4 00mA High alarm OFF Low alarm OFF use t to change 8 2 Alarm relay test Into the book menu display as shown above This function is used for testing the alarm relay output Load control relay rated current is less than the exposure to current pressing the left to connect power supply not more than 220V Load control relay rated current greater than the exposure to current then the need to add AC contactor press the connect at right co 9 A YITE TECHNOLOGY __h
3. temperature manual The actual measurement temperature refers to the temperature actually measured by the temperature sensor The manual set temperature refers to the temperature set by the human and it has nothing to do with the actual solution temperature This function is mainly used for simulated debugging substitute resistance box The Man Temp refers to the temperature which the meter displays when the temperature intput type sets the temperature as manual set temperature manual 8 StationID This item is used when communication by RS485 it means the ID number of the meter in the RS485 network 7 5 Calibration Description Because each oxygen electrode and zero current slope is different and with the consumption of liquid filling zero current and slope in the course will gradually change resulting in aging and each additional fill fluid or exchange membrane can also lead to zero current and slope changes which need regular calibrated to ensure sufficient accuracy Before entering this menu to enter the correct password the initial password is 8008 The table has a little air of known concentration of calibration and calibration slope and other methods to choose from Some air calibration slope the head of oxygen membrane electrode before calibration should be filled with fill fluid the installation clean and well maintained after the electrode head insert the water samples and elec
4. 9 SL Current Out UC asses ares ae ek a cence yout 9 8 2 Alarm relay test 353 aia ee aedy cue tut antuateeuedieesarcagerdyes 9 8 3 Change password sa waicedvechnve tot oaetanapineaaweed 10 8 4 Input signal testis yi sctscuec dees cps iyl eiecdieve wioieeawetins 10 S S After SOL ee nessen hai eels ietton ate E et tarts Sat 10 9 Daily miaimilemanee says ensindedtasn tas eseadaius doguadesntecwabes 10 O WNOIS SEU 8 hice cee side ace arena od te ctr na pes elon dash 11 A YITE TECHNOLOGY __http www ayite net 1 Overview GE 134 dissolved oxygen controller is a microprocessor line water quality monitor Configuration of different dissolved oxygen electrode the oxygen content of the aqueous solution for continuous monitoring and control 2 The structure features Complete measuring system consists of GE 134 instruments and two parts oxygen electrode oxygen electrode contact with the tested solution aqueous oxygen meter and temperature display and work state 3 Technique features 1 Measuring range DO 0 25 00mg L Temperature 5 60 C 2 Basic error DO 0 2mg LF S Temperature 0 3 C 3 The temperature compensation range 0 110 C 4 The remain signal of electrode lt 1 o 5 Response time 90 final lt 60seconds 25 C or lt 30seconds 35 C 6 The stability lt 2 F S every week normal temperature and normal pressure 7 Current output 0 10mA load resistance lt 1 5KQ 4 20mA load resistance lt 750Q 8
5. A Yite User Manual GE 134 Dissolved oxygen Controller Dissolved Oxygen Meter GE 134A ANITE TECH The initial password 8008 A YITE TECHNOLOGY GROUP http www ayite net A YITE TECHNOLOGY All rights reserved A YITE TECHNOLOGY __http www ayite net CONTENTS PE OVERVIEW 6 eeren es sen teiesaacasacede ues alauG a 3 2 The structure Teatutes 2 31 20 s6eve tv saaetivads oleae cdaeasaneiad 3 3 Technique TeALITe Sv 554 ines Gaeneiwaa ca ex aesanceesatata beats 3 4 The function features coda Sadannoladaaianehesaat ctasvacueades 3 5 The installation of meter cc cee eeee cece cee eeeeeees 4 5 1 Controller Installation i022 psdedaisPevaclce he cacdben se nme naee 4 5 2 The electrode and installation cc 000s 4 5 3 The electric CONNECTION 2 0 cece cece ccc eee eee e ee 5 5 4 Electrical connection cccceceseeenscnseuseeees 5 6 FUNCION KEYS wc 6csnscmeded alee aacansennsangivaedatasabodicare 5 7 Detailed MISTRUICLLONS lt esauas haters etait ds ats tine eA tslosnay 6 Teh POW GION dose ste tach dria hate suuh nes aa a E E ETAS 6 Peo Wi AMINATION nfs tart ea Noreen sae deanGenetunnan tenes 6 7 3 The submenu parameters cece eee ee eee eens 6 7 4 Parameter description cece eeeee cence eeeeeeees 7 7 5 Calibration instructions cccc cece cece eee ee 8 8 The submenu check and set 00 ccc cece cece eee ees
6. into the first wife of the oxygen electrode filling solution the inner core the excess liquid will fill the tank with the natural discharge of the exhaust electrode mounted in the cylinder when you can not leave air bubbles and then carefully screw on the stainless steel jacket can be The power re activation of more than 1 hour point slope calibration air after put into operation 6 When the scene a long time without water when not in use remove the electrode should be cleaned drained membrane filled tuck put on protective cap electrode drying recommended store 7 If the electrode damage or failure in need of replacement electrodes the oxygen membrane damage in need of replacement 10 A YITE TECHNOLOGY http www ayite net Appendix A standard appendix saturated oxygen in the water under difference temperature Temperature Dissolved oxygen Temperature Dissolved oxygen Cc mg L Cc mg L 0 14 64 20 9 08 1 14 22 21 8 90 2 13 82 22 8 73 3 13 44 23 8 57 4 13 09 24 8 41 5 12 74 25 8 25 6 12 42 26 8 11 7 12 11 27 7 96 8 11 81 28 7 82 9 11 53 29 7 69 10 11 26 30 7 56 11 11 01 31 7 46 12 10 77 32 7 30 13 10 53 33 7 18 14 10 30 34 7 07 15 10 08 35 6 95 16 9 86 36 6 84 17 9 64 37 6 73 18 9 46 38 6 63 19 9 27 39 6 53 Annotation This table is a reference from JJG291 1999 appendix C 10 Whole set Name Quantity 1 GE 134 DO Control
7. ler 2 Oxygen electrode 3 Spare parts 4 Install bracket 5 User manual eS N e S 11
8. on 14 Null 6 Low alarm relay normally open contact 15 DO output current 7 220VAC or 24VDC or 12VDC 16 DO output current 8 Zero line or 24VDC or 12VDC 17 24 Null 25 Communication 26 Communication 5 4 Electrodes filxed conventional cable length is 5m lead Terminals Department has labeled inserts with insert it into the controller back the same number of terminal symbols can be tightened 6 Function Keys The panel has 6 touch key and they are Esc lt Tf Jand Enter Esc shift between the measurement screen and menu screen or return to the previous menu and status from the menu screen or cancel the input data lt move to the first menu item or move the cursor to the left when the data is input move to the last menu item or move the cursor to the right when the data is input t move the menu upward or numerical value increases J move the menu downward or numerical value decreases Enter Choose or confirm the menu item and finish the data input or confirm certain status A YITE TECHNOLOGY __http www ayite net 7 Detailed instructions 7 1 Power on Before the meter is used check all the pipe connection and the electric connection After the power supply is connected the meter displays as shown in below left In over serval seconds meter will enter into measurement main display DO main display 6 5 2veif 25 Q C ug L or mg L Automatic switching No
9. pe This two items are used to set the sensor zero point and the sensor slope ratio The results of calibration are recorded in here In addition this function is also used to directly modify sensor s zero point and slope ratio 3 Barometic This item is used to set atmosphere pressure 4 The Alarm High Alarm Low and Dead Band The Alarm High and Alarm Low are respectively used to set the high alarm limit and the low alarm limit The Dead Band is used to set the dead band of alarms 5 The Out High and Out Low The Out High and Out Low are respectively used to set the output current high limit and low limit Out High gt Out Low 6 The output current CurMethod This menu is used to setting the meter current output method Make the selection between 0 10mA and 4 20mA The relationship between the output current and the measured dissolved oxygen 0 10m A output method I D DL DH DL x10mA 4 20m A output method I 4mA D DL DH DL xl6mA Among them I output current D the currently measured dissolved oxygen DH the output upper limit set by users DL the output lower limit set by users aq A YITE TECHNOLOGY __http www ayite net 7 The temperature intput type Temp Mode and manual set temperature Man Temp The Temp Mode has the actual measurement temperature actual and manual set
10. rmal Value based show in which dissolved oxygen temperature state of the sub display Status prompt displays the following information 1 Normal 2 High limit alarm 3 low limit alarm 7 2 Main menu While in the main display status press ESC key will enter main menu It display like below Main menu 1 parameters 2 sensor calibrate 3 check and set 4 after service 7 3 The submenu parameters All the parameters under the submenu should be checked before measuring otherwise it will run by the preset values Move the cursor to the l parameters submenu and press ENTER key a password will be requested preset password is 8008 When enter this submenu using or key move the cursor press ENTER key to modify the sub parameters A YITE TECHNOLOGY __http www ayite net Disp Type Hg L HighAlarm 200 0Hg L Ist LowAlarm 0 000Hg L Dead Band 0 010Hg L CurMethod 4 20mA Use the following keys one by one move or use the left and right full screen look Out High 200 0Lg L Out Low 0 000Hg L 2st SensorZero 0 0pA Sen Slope 350pA mba Barometric 1013 0mbar Use the following keys one by one move or use the left and right full screen look Temp Mode actual Man temp 25 00 C StationID 1 3st 7 4 Parameter Descriptio 1 Disp Type There are there methods ug mg L and mbar Normal use ug L is usually used in bio fermentation 2 The Sensor Zero and Sen Slo
11. technical support and after sales service contact methods X Optional RS485 RS232 communication interface connected to the computer 5 The installation of meter 5 1 The controller shall be installed where it is clean dry and well ventilated and there is no vibration no corrosive gas or steam Some space shall be left around the meter for the convenience of the operation and overhaul The meter shall be as close as possible to the sampling point for ease of pipe and electric connection The meter shall be close to the sensor for the ease of calibration See the diagram 1 for size 91mm 91mm N 91X 91mm Ye Figure 1 hole tapping size 5 2 Electrode installation diagram m NAS h hL ea iit Fe F it PAPE i tor MURR eee amp t P d RANEH nie ities R EER y JI RR Figure 2 a variety of installation shown in Figure Sink or pipeline for high values of dissolved oxygen measurement A YITE TECHNOLOGY __http www ayite net 5 3 The electric connection ib oa 2B GS 1 2 3 4 5 6 7 8 Figure 3 instrument wiring diagram Wiring instructions 9 DO measuring electrode terminal 1 High alarm relay normally closed contact 10 DO reference electrode terminal 2 High alarm relay contact common 11 Temperature electrode terminals 3 High alarm relay normally open contact 12 Temperature electrode terminals 4 Low alarm relay normally closed contact 13 Shield terminal 5 Low alarm relay contact comm
12. trode cable connected to the instrument according to label accurately activated power 1 to 2 hours Remove the electrode from the water samples placed vertically in the air with a clean filter paper to dry gently drop the head electrode And then operate the instrument into the point slope calibration of the air below left Input current to be relatively stable usually about 5 minutes will be automatically calibrated or manually press the Enter key to continue after the right below shows results of calibration reference At this point press the Enter key and then press the Escape key instrument calibration of the display values should be consistent with or close to Appendix A see last page After completion of calibration measurement can be put in water samples Only when the user is put into the air to do a little slope calibration Stable until the input current Electrode current 70 00nA Result Temp 25 0 C S 410 0pA mbar Application according to confirm cancel Press Enter to save press the Escape Known concentration calibration about to enter a known concentration after calibration A YITE TECHNOLOGY __http www ayite net 8 The submenu check and set 8 1Current output This function is mainly used for the correct checking of output current and with this submenu the user can check the correctness of meter output current within the full output range When the meter is connected with the recorder
13. ttp www ayite net 8 3 Change password After entering this function input initial password initial password is 8008 and then input new password complete the modification of user password 8 4 Input signal test This function is mainly used for simulated debugging by the meter factory 8 5 After Service This menu shows the after sales service telephone number E mail and Web address 9 Daily maintenance Instruments generally do not need routine maintenance such as failure to contact the company the company s technical staff under the direction of the adjusting Dissolved oxygen electrode maintenance please note the following 1 As far as possible into the water sample flow rate constant 2 Low dissolved oxygen in the test the use of hard pipe inlet connection to prevent air infiltration into the pipe 3 Disassembly can not break the electrode film and the misfortune to scratch the oxygen electrode penetration within the core of the glass bulb head 4 Cable connector to keep clean not damp or water 5 Instrument display and the actual measured values varied widely or low levels of oxygen can not be measured it may be filled with liquid oxygen electrode dry to be re poured into the filling liquid Specific steps are as follows A slowly unscrew the electrode head stainless steel jacket remove the cylinder like membranes B Discard the cylinder filling the remaining liquid and then filled
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