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POWER SUPPLY 

 

The meter is powered by 4pcs AAA batteries. If any of the following situations 
occurred, please check the battery power, polarity and contact: 

1.  Brand new meter and first time using. 
2.  When the battery low icon appears on the LCD. 
3.  When you cannot turn the power on. 

 

KEY PAD OPERATION 

 

  Press this key to switch the meter 

ON/OFF

  In the normal mode, press >1 sec to enter 

SET

 mode. 

 

  Press to switch between "normal"  and "calibration" 

  In calibration, setting or recall mode, press to return to normal mode. 

 

 

Press to switch between D.O.in% or D.O.in mg/I(ppm). 

 

Press to increase the setting value in 

SET

 mode. 

 

  Press to switch between CON(us) or TDS(ppm/ppt) or Salt (ppt) unit. 

  Hold down this key more than 2 seconds to read memory value. 

 

  Press to save the current reading. 

  Press to decrease the setting value in 

SET

 mode. 

 

  Press to confirm the calibration or parameter setting. 

  Press to turn on/off backlight. 

 

 

 

 

 

Summary of Contents for SP-850048

Page 1: ...PAGE 1 DO Multi Parameter Meter SP 850048 Instruction Manual ...

Page 2: ...2 P10 Memory Clear Clr Adjust 13 P60 DO Review and Set parameters adjustable 14 P20 pH Electrode Slope Review 16 P30 Cond Calibration Review 16 P40 Cond Cell Constant Review 17 P50 Cond TDS factor adjustable 18 P70 Temperature unit adjustable 18 DO SATURATION CALIBRATION 18 CALIBRATION pH Probe 20 CONDUCTIVITY CALIBRATION 21 PROBE MAINTENANCE 24 DO probe maintenance 24 pH probe maintenance 27 COND...

Page 3: ... compensation and salinity compensation function for D O measurement 99 points memories w recall function Probes with guard Temperature C F is switchable e 1 hour auto power off Application o Excellent to use in fresh water aqua farm o Excellent to use in sea water aqua farm MATERIAL SUPPLIED A basic package contains Meter x 1 pc Probe electrolyte and 2 heads probe type Qty is depended on your ord...

Page 4: ...e normal mode press 1 sec to enter SET mode Press to switch between normal and calibration In calibration setting or recall mode press to return to normal mode Press to switch between D O in or D O in mg I ppm Press to increase the setting value in SET mode Press to switch between CON us or TDS ppm ppt or Salt ppt unit Hold down this key more than 2 seconds to read memory value Press to save the c...

Page 5: ...The DO value will be displayed on the left side of the LCD 2 The temperature value will be displayed in the upper right corner of the LCD 3 The MEMO number will be displayed in the lower right corner of the LCD and is the total number of saved records ...

Page 6: ...r of the LCD and is the total number of saved records Using Conductivity TDS Salinity probe 1 The conductivity value will be displayed on the left side of the LCD 2 The temperature value will be displayed in the upper right corner of the LCD 3 The MEMO number will be displayed in the lower right corner of the LCD and is the total number of saved records 4 Press EC mode key to switch the display to...

Page 7: ...e connected to the meter PH probe with black connector D O probe with green connector COND TDS Salinity probe with blue connector The charts below indicate the electrode and temperature sensor location All probes are provided with an anti collision hood to provide protection in measuring Please remove protection hood in below condition 1 To store pH probe 2 To do pH calibration There is installati...

Page 8: ...gged on meter for most of time to set the activation mode to Fast can make the reading stabilized in few seconds The disadvantage of Fast mode is electrolyte consumption is much higher so the need to refill and doing probe maintenance is frequent If D O probe is plugged on meter for most of time to set the activation mode to Slow can make the reading stabilized in 10 minutes The advantage of Slow ...

Page 9: ...rode before use Step 1 Rinse the probe with de ionized or distilled water before use in order to remove any impurities adhering on the probe If the electrode is dehydrated soak it for 30 minutes in KCI solution before taking the reading Then put on anti collision hood for better protection Step 2 Press power on key Run calibration Refer to pg 19 Step 3 Dip the electrode into the sample the electro...

Page 10: ...the electrode tip is totally immersed Stir the probe gently to create a homogenous sample Be careful don t create air bubble Step 3 Wait until the reading is stabilized Take a new measurement Under normal mode please connect the Cond probe to the meter Press EC mode key to switch to SALT display Please follow the above conductivity measurement step 1 4 to take the salinity measurement Under normal...

Page 11: ...I ppm mode before proceed memory recording To enter RECALL REC mode press and hold RECALL key for more than one second in the measurement mode then press 6 or 9 to view memorized data in rounds Fig 18 Press ESC key for more than one second to return to normal mode While in RECALL mode MEMO icon appears on display In normal mode press ENTER key to switch on the backlight To turn it off press ENTER ...

Page 12: ...without saving in the setup mode press the CAL ESC key until the measurement mode appears If the meter is under the setting value status press the CAL ESC key twice to exit The table below shows the programable functions of each probe Parameters PH COND DO P10 Memory Clear CLr adjustable V V V P20 PH Electrode Slope Review V P30 Cond Calibration Review V P40 Cond Cell Constant Review V P50 Tds fac...

Page 13: ...ey to change the status from no to YES Fig 3 press ENTER key again to confirm and clear all The LCD will return to P10 when memories are deleted Fig 1 3 If the pH probe is currently attached it only deletes the pH records in the memory If the D O probe is plugged then only the D O records will be deleted NOTE The memory clear option is designed to clear 99 memories at once Please consider carefull...

Page 14: ...emperature has 10 degree C difference 2 Then press ENTER into P62 ppt the value will be flashed on the screen Fig 12 You can manually enter the salinity compensation Use salinity value measured by the conductivity probe Press or adjust the salinity value The value can be adjusted from 0 0 to 42 00ppt 3 Press Enter to confirm then enter P63 M to program the height from sea level Fig 13 The value wi...

Page 15: ...PAGE 15 ...

Page 16: ...d to change electrode immediately P30 is used to review the previous conductivity calibration data at different range 1 Enter to setup mode and press or key in the setup mode to check the CAL P30 calibration message Fig 6 2 Press ENTER key to enter the calibration information screen with P32 P33 P34 P35 CON uS or mS calibration information Fig 7 3 P32 will display calibration information in Range ...

Page 17: ...be between 0 8 to 1 2 1 Enter to setup mode and press or key in the setup mode to check CEL P40 display Fig 8 2 Press ENTER key to enter P42 P43 P44 and P45 screen Fig 9 and review cell constant of each range Press ENTER key again to return on the CEL P40 screen Fig 8 P40 Cond Cell Constant Review ...

Page 18: ...e temperature 1 Press or key in the setup mode to enter the temperature unit P70 screen Press the ENTER key to select temperature unit setting unt will display on the left side of the screen Fig 14 2 At P70 screen press ENTER key to enter P71 The default C will be flashed on the main screen Fig 15 If the unit you need is degree o C press ENTER key to confirm 3 If the unit you desired is degree o F...

Page 19: ...the reading is stabilized Press CAL ESC to calibrate for 100 saturation CAL icon is flashing on LCD Fig 23 2 Wait some seconds when the reading is stabilized press ENTER to finish the calibration 3 You can stop the calibration by pressing CAL ESC 4 After calibration the displayed value should be 99 0 to 101 0 5 Whenever an error occurs during calibrating the ERR indicator will appear The error mig...

Page 20: ...ility Selecting the proper and fresh buffer will help the meter to recognize the buffer and calibrate the probe precisely Please clear the electrode with de ionized water or detergent and follow the procedures for PH calibration value setup It is suggested to do the calibration every half month The pH calibration procedure is as followings Insert the PH probe into the meter 1 Power on the meter 2 ...

Page 21: ...lean water to wash before immersing into different buffer 10 Put on semitransparent probe cover to protect sensor before storage and ensure there is enough storage buffer inside cover There is no need to remove anti collision hood from probe before calibration It is also nice to clean the electrode by soft brush to sweep the dirty away before immersing into calibration solution Select a standard b...

Page 22: ... measuring If the conductivity of measured solutions is 100 uS please calibrate the meter at least once a week to maintain specified accuracy If the meter is used in the mid ranges the calibration is suggested at least once a month If the measurement proceeds at extreme temperature we suggest to calibrate at least once a week Please follow steps below for conductivity calibration 1 Insert the prob...

Page 23: ...ue 7 When the conductivity solution value on the LCD matches the calibration solution value Press ENTER key the SA will be displayed on the LCD Fig 22 Then the LCD will stop flashing and return to normal mode then the conductivity calibration is completed NOTE The characteristics of the Probe may degrade with time and usage Whenever an E16 still occurs after calibration please replace a new probe ...

Page 24: ...d water before using Please keep it under 0 50O C temperature after each usage Please plug the probe onto meter even during storage to shorten the activation time INSPECTION D O PROBE Inspection probe while receiving a new probe or seeing strange reading or probe has been used for one year 1 It is fine to see electrolyte is not full Only fulfill electrolyte and replace membrane set when it is less...

Page 25: ...r 1 Rotate to unscrew and disassemble the probe 2 Use soft long fiber cloth to clean the surface of working area where residues attached on NOTE If the residues cannot be removed by cloth please use fingernail to scrape Iightly on the surface of working area to remove it 3 Use a knife blade to scrape lightly on the electrode to remove the white residue as below image NOTE Please take care on this ...

Page 26: ...Membrane is broken or wrinkled f Measuring speed is much slower than before The procedures are 1 Prepare a new membrane set NOTE Due to the structure of membrane is delicate once the membrane set has been removed from the probe it is not suggested to re install ed the same membrane set repeatedly as it might influence the reading 2 Rotate to unscrew the probe protective cover and remove the membra...

Page 27: ...ld always be moistened by using the probe cover with storage buffer Always rinse the pH electrode with pure water or distilled water before use Never touch or rub the glass bulb for lasting pH electrode life Please soak the conductivity probe in distilled water for 30 min before each usage to avoid the inert effect Only use soft brush or clean water to clean probe surface if dirt is attached on su...

Page 28: ...ge Unstable pH reading 1 Means the pH electrode is aging Solution 1 pH probe needs to be replaced Error code E02 1 E02 means the measured value is lower than specified range Solution 1 Put the probe in normal tap water at room temp for 30 minutes to cancel E02 from display 2 If above is not working run below procedure For pH probe run calibration For conductivity probe run calibration For D O prob...

Page 29: ...make sure pH buffer is correct and fresh to get good result Error code E16 1 E16 means Cell constant of Cond prober is out of the range Solution 1 Re turn on meter several times to cancel the error code from display 2 Try to calibrate the conductivity probe to cancel E16 from display Error code E21 1 This is for D O probe means the temp between measurement and calibration is differed for 10 C Solu...

Page 30: ...1 means the probe isn t plug Solution 1 Check the probe plug again make sure the contact is good and tight 2 If probe is well plugged but still seeing turn off device and power on again to have device link to probe again ...

Page 31: ...0 0 199 9 0 0 30 0mg L D O accuracy 3 of F S 1 digit D O resolution 0 1 Temp range 5 60 C Temp accuracy 0 5 C Temp resolution 0 1 Compatible probe pH Probe Cond Probe and D O Probe LCD size mm 26 H x 44 W Operating Temp RH 0 50 C Humidity 80 Storage temp RH 20 60 C Humidity 90 Dimensions mm 175 L x 70 W x 33 H Weight 200g Power 4 x AAA Batteries RETURN AUTHORIZATION Authorization must be obtained ...

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