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Accumet AP84, Руководство по эксплуатации

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Accumet AP84 Скачать руководство пользователя страница 31

From the % saturation measurement mode

dPr: Dissolved oxygen parameters 

• Select Hg or Pa barometric pressure units
• Select barometric pressure

CAL: Viewing previous calibration data 

• View previous calibration data

OFS: % saturation offset adjustment 

• Set % saturation offset adjustment

ELE: Viewing probe data 

• View probe slope
• View % saturation offset
• View mV value equivalent to 100% saturation
• View mV value equivalent to 0% saturation

COF: Unit configuration

• Ready indicator on or off / auto endpoint on or off
• Select °F or °C

LCd: Backlit display

• Adjust brightness of backlit LCD

Instructions on page 39

Instructions on page 40

Instructions on page 41

Instructions on page 42

Instructions on page 43-44

Instructions on page 45

rSt: Reset to factory default

• Reset to factory default settings

Instructions on page 46

30

Содержание AP84

Страница 1: ......

Страница 2: ...OPERATING INSTRUCTIONS accumet 13636AP84A Portable Waterproof pH Dissolved Oxygen Meter Printed 1 02 IP 67...

Страница 3: ...20 24 5 1 Taking DO readings 20 21 5 2 Taking pressure salinity compensated DO measurements 21 22 5 3 Taking pH readings 23 24 5 4 Manual temperature compensation 25 6 Hold function 26 7 Backlit LCD...

Страница 4: ...gram P1 0 Dissolved oxygen parameters 47 48 P1 1 Pressure adjustment mode 47 P1 2 Salinity adjustment mode 48 8 14 mg l ppm mode Program P2 0 Previous calibration information 49 8 15 mg l ppm mode Pro...

Страница 5: ...r based instrument that measures pH dissolved oxygen and temperature It s completely waterproof and it floats Your meter has many user friendly features all of which are accessible through the membran...

Страница 6: ...ns 2 1 Primary display 5 6 Secondary display 3 2 15 16 14 12 11 8 1 13 4 10 7 1 SETUP mode indicator 2 MEASurement mode indicator 3 CALibration mode indicator 4 pH indicator 5 saturation indicator 6 S...

Страница 7: ...ibration and Measurement mode If you were in pH mode press CAL MEAS to enter pH calibration mode If you were in DO saturation mode press CAL MEAS to enter DO saturation calibration mode If you were in...

Страница 8: ...are included with your meter 1 Use a Phillips screwdriver to remove the two screws holding the battery cover See figure below 2 Lift off battery cover to expose batteries 3 Insert batteries Follow the...

Страница 9: ...ur solution at the same time You can use any standard pH electrode with a BNC connector with this meter If you do not have the DO probe connected you will need a separate temperature probe to provide...

Страница 10: ...TION Do not pull on the probe cord or the probe wires might disconnect To connect the dissolved oxygen probe NOTE Do not substitute other DO probes 1 Line up the notch and 6 pins on the meter with the...

Страница 11: ...7 00 the meter retains the old calibration data at pH 4 01 and pH 10 01 saturation and mg l ppm All new calibrations automatically override existing calibration data To view current calibration points...

Страница 12: ...the electrode has been stored dry wet the probe in tap water for 10 minutes before calibrating or taking readings to saturate the pH electrode surface and minimize drift Wash your probe in deionized w...

Страница 13: ...red reading while the smaller secondary display will indicate the pH standard buffer solution See figure 5 Wait for the measured pH value to stabilize See figure pH CAL pH READY C C B pH CAL pH B pH A...

Страница 14: ...r additional calibration points 9 When calibration is complete press CAL MEAS to return to pH measurement mode Notes To exit from pH Calibration mode without confirming calibration DO NOT press ENTER...

Страница 15: ...matically override existing DO calibration data Before Dissolved Oxygen calibration Before starting DO calibration make sure you are in the correct measurement mode When you switch on the meter the me...

Страница 16: ...e probe in a damp cloth Do not touch the membrane 2 Press the MODE key to select the saturation mode See figure 3 Press the CAL key The CAL indicator will appear above the primary display The primary...

Страница 17: ...nt value of the measurement and the secondary display will show 0 0 See figure 4 Wait for the reading to stabilize If the Ready indicator feature is enabled it will appear when the reading is stable s...

Страница 18: ...o not touch the membrane 3 Dip the probe into a sample of known oxygen concentration Wait for the reading to stabilize If the Ready indicator feature is enabled it will appear when the reading is stab...

Страница 19: ...ammed into the meter It also adjusts to the salinity value that is programmed into the meter You can change the barometric pressure value and salinity value in the mg l ppm SETUP mode see pages 47 48...

Страница 20: ...the MODE key to enter temperature calibration mode The primary display shows the last set temperature reading and the secondary display shows you the factory default temperature value See figure 4 Co...

Страница 21: ...stirrer to accomplish this To take measurements 1 Rinse the probe well with deionized rinse water or rinse solution 2 Select the appropriate measurement mode Press the MODE key to toggle between modes...

Страница 22: ...an adjust the pressure and salinity values of your measurements in the SETUP mode The DO meter will automatically compensate for salinity and pressure based on the values entered in the setup function...

Страница 23: ...o enter Set Up mode See figure 4 Press the ENTER key until the upper display shows a number and the lower display shows SAL 5 Use the and keys to enter the salinity of your solution in ppt The upper d...

Страница 24: ...he sample When dipping the pH electrode into the sample the sensor or the glass bulb of the electrode must be completely immersed into the sample Stir the probe gently in the sam ple to create a homog...

Страница 25: ...gram P3 1 see page 35 for directions Taking measurements with the auto endpoint feature selected on When a reading is stable for more than 5 seconds the auto endpoint feature will automatically HOLD t...

Страница 26: ...mperature setting and the secondary display shows the default value 25 C See figure 4 Check the temperature of your sample using an accurate thermometer 5 Press the or keys to offset the temperature t...

Страница 27: ...his meter shuts off automatically after 20 minutes of nonuse If the meter is shut off either automatically or manually the HOLD value will be lost NOTE This meter has an auto endpoint feature When thi...

Страница 28: ...s conserve batteries This adjustment is only available in the saturation or mg l ppm SETUP modes From measurement mode 1 Press the MODE key to switch to saturation or mg l ppm mode 2 Press SETUP key t...

Страница 29: ...h mode the meter is in CAL Calibration data ELE Probe data COF Configuration rSt Reset meter to factory default dPr Dissolved oxygen parameters saturation offset adjustment CAL Calibration data ELE Pr...

Страница 30: ...electrode slope COF Unit configuration Ready indicator on or off auto endpoint on or off number of calibration points 2 3 4 or 5 Select F or C 8 1 rSt Reset to factory default Reset to factory default...

Страница 31: ...ew probe slope View saturation offset View mV value equivalent to 100 saturation View mV value equivalent to 0 saturation COF Unit configuration Ready indicator on or off auto endpoint on or off Selec...

Страница 32: ...View probe slope View mV value equivalent to 100 saturation View mV value equivalent to 0 saturation COF Unit configuration Ready indicator on or off auto endpoint on or off Select mg l or ppm units S...

Страница 33: ...7 00 P1 4 pH 10 01 P1 5 pH 12 45 See figure 5 When you have scrolled through all calibration data you will automatically return to the subgroup menu Press the CAL MEAS key to return to measure ment m...

Страница 34: ...ct parameter P2 1 5 The display shows the electrode offset value the display shows the mV offset at pH 7 00 If you have not calibrated at any buffer the primary display shows 0 00 mV See figure 6 Pres...

Страница 35: ...y to enter SETUP mode 2 Press the and keys to scroll through subgroups until you view parameter P2 0 See figure 3 Press the ENTER key twice to select parameter P2 2 4 The display shows electrode slope...

Страница 36: ...Y indicator and auto endpoint function This program lets you select READY indicator on to indicate when the reading is stable READY indicator off for faster meter response Auto endpoint function on Se...

Страница 37: ...ress the and keys to select 2 3 4 or 5 point pH calibration 6 Press the ENTER key to confirm selection and to return to the subgroup menu Press the CAL MEAS key to return to measurement mode C C D D P...

Страница 38: ...e 4 Press the ENTER key three times to select parameter P3 3 See figure 5 Press the and keys to toggle between C and F 6 Press the ENTER key to confirm selec tion and to return to the subgroup menu Pr...

Страница 39: ...contrast setting 8 5 Notes To reset all saturation data see page 46 To reset all mg l ppm data see page 55 See page 65 for a table of factory default settings A B From measurement mode 1 Press the MOD...

Страница 40: ...nter SETUP mode 3 Press the and keys to scroll through subgroups until you view parameter P1 0 in the lower display See figure 4 Press the ENTER key twice The upper display shows either Hg or PA and t...

Страница 41: ...the SETUP key to enter SETUP mode 3 Press the and keys to scroll through subgroups until you view parameter P2 0 in the lower display See figure 4 Press the ENTER key The upper display shows the curr...

Страница 42: ...s the MODE key to select saturation mode 2 Press the SETUP key to enter SETUP mode 3 Press the and keys to scroll through subgroups until you view parameter P3 0 in the lower display See figure 4 Pres...

Страница 43: ...ss the ENTER key The upper display shows the 0 saturation mV value See figure 8 Press the ENTER key to move back to subgroup P4 0 If you want to return to measurement mode press CAL MEAS saturation mo...

Страница 44: ...u can also change the Ready indicator and auto endpoint function in SETUP Program P3 1 on page 35 in pH mode or P4 1 on page 51 in mg l ppm mode Any changes you make to the Ready indicator auto endpoi...

Страница 45: ...n the lower display See figure 4 Press the ENTER key until C or F appears in the upper display See figure 5 Press the and keys to toggle between C and F 6 Press the ENTER key to confirm selection and...

Страница 46: ...P key to enter SETUP mode 3 Press the and keys to scroll through subgroups until you view parameter P6 0 in the lower display See figure 4 Press the ENTER key A number 0 8 appears in the upper display...

Страница 47: ...ibration data and set parameters A B 8 12 From measurement mode 1 Press the MODE key to select the saturation measurement mode 2 Press SETUP key to enter SETUP mode 3 Press the and keys to scroll thro...

Страница 48: ...ys to scroll through subgroups until you view parameter P1 0 in the lower display See figure 4 Press the ENTER key twice The upper display shows either Hg or PA and the lower display shows bAr 5 Press...

Страница 49: ...nd keys to scroll through subgroups until you view parameter P1 0 in the lower display See figure 4 Press the ENTER key five times The upper display shows the salinity value and the lower shows SAL Se...

Страница 50: ...the MODE key to select mg l ppm mode 2 Press the SETUP key to enter SETUP mode 3 Press the and keys to scroll through subgroups until you view parameter P2 0 in the lower display See figure 4 Press th...

Страница 51: ...ENTER key The upper display shows the 0 saturation mV value See figure 8 Press the ENTER key to move back to subgroup P3 0 If you want to return to measurement mode press CAL MEAS mg l ppm mode P3 0...

Страница 52: ...l ppm measurement mode 2 Press SETUP key to enter SETUP mode 3 Press the and keys to scroll through subgroups until you view parameter P4 0 in the lower display See figure 4 Press the ENTER key to sel...

Страница 53: ...y See figure 4 Press the ENTER key until dO appears in the upper display P4 2 in the lower display See figure 5 Press the and keys to toggle between mg l or ppm units 6 Press the ENTER key to confirm...

Страница 54: ...er display See figure 4 Press the ENTER key until C or F appears in the upper display See figure 5 Press the and keys to toggle between C and F 6 Press the ENTER key to confirm selection and to return...

Страница 55: ...nter SETUP mode 3 Press the and keys to scroll through subgroups until you view parameter P5 0 in the lower display See figure 4 Press the ENTER key A number 0 8 appears in the upper display and LCd a...

Страница 56: ...pH calibration data and set parameters A B 8 18 From measurement mode 1 Press the MODE key to select mg l ppm mode 2 Press SETUP key to enter SETUP mode 3 Press the and keys to scroll through subgrou...

Страница 57: ...ext use rinse the liquid junction with de ionized water and tap dry never wipe electrode NOTE If this does not restore electrode to normal response see Reactivating the pH electrode section on page 57...

Страница 58: ...ne must be cleaned at regular intervals to assure maximum reliability After using the probe rinse the probe in clean water and wipe it with a soft cloth or paper to avoid any hardening of deposits If...

Страница 59: ...Pull off the probe guard 2 Unscrew the membrane cap from the probe 3 Hold the probe under a water tap and brush away the white oxide on the cylindrical anode with a stiff plastic brush do not use met...

Страница 60: ...mference See figure 10 Using the installation tool screw the membrane lock back into the cap Tighten the lock firmly over the membrane and O ring but do not overtighten 11 Inspect the membrane for wri...

Страница 61: ...bubbles c Dirty DO probe or c Clean the probe or electrode pH electrode and recalibrate d Probe not deep d Make sure sample entirely enough in sample covers the probe sensors e External noise pickup e...

Страница 62: ...ibration sections or Probe Maintenance section Battery Low battery level Need new batteries Clean battery contacts indicator blinks or battery Replace batteries with fresh connection is bad ones notin...

Страница 63: ...in manually and automatic correction Barometric pressure correction Range 500 to 1499 mm Hg 66 6 to 199 9 kPa Resolution 1 mm Hg 0 1 kPa Method Key in manually and automatic correction DO Probe type...

Страница 64: ...gen passed through the membrane and produces an electric current in the probe This current is proportional to the partial pressure of oxygen in the sample Since the cathode consumes the oxygen in the...

Страница 65: ...ctory setting 760 mm Hg the saturation calibration value in air will automatically adjust to a value other than 100 see corrected saturation value column below The adjusted value is correct for the ne...

Страница 66: ...Default Clr Memory clear yes no no dPr Pressure units Hg or Pa Hg Barometric pressure adjust from 500 1499 mm Hg 760 mm Hg Salinity adjustment adjust from 0 50 ppt 0 ppt OFS Set saturation offset up...

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