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Oxi 330i/340i

Operation

ba52306e04

03/2008

4.2.5

Selecting the measuring range, AutoRange

Sensors

You can use the DurOx 325 or CellOx 325 sensors. If the automatic recogni-
tion function

recognizes the DurOx 325 sensor, the measurement is carried

out at a lower resolution. The CellOx 325 sensor measures with a resolution
that is a factor of 10 higher.

AutoRange

Each of the measuring parameters has 2 measuring ranges available.

AutoR-

ange

causes the measuring instrument to change to measuring range II if

measuring range I is exceeded, and also vice versa.

To switch the automatic measurement range selection on/off, see section
4.6 C

ONFIGURATION

. When the AutoRange function is switched on,

ARng

ap-

pears on the display.

Measuring ranges/

resolutions with
CellOx 325 D. O.

probe

Measuring ranges/

resolutions with

DurOx 325 D. O.

probe

LoBat

Cal

Sal

mbar

RCL

Auto Store

1/cm

TDS

UpH

Sal

mV/pH

Lin

Tref25 Tref20

nLF

AutoCal DIN

AutoCal TEC

Time

Baud

Day.Month No.

Ident

Year

9 2

mg/l

ARng

mg/l

mbar

Measuring range I
Resolution

0 ... 19.99
0.01

0 ... 199.9
0.1

Measuring range II
Resolution

0 ... 90.0
0.1

0 ... 600
1

0 ... 1250
1

mg/l

mbar

Measuring range I
Resolution

0 ... 19.9
0.1

0 ... 199
1

Measuring range II
Resolution

0 ... 90
1

0 ... 600
1

0 ... 1250
1

Содержание Ox i340i

Страница 1: ...ba52306e04 03 2008 Handheld meter Oxi 330i 340i Operating manual Oxygen measuring instrument AR STO CAL RCL M O 6 7 1 9 2 7 O C mg l ARng TP...

Страница 2: ...the date of pur chase The instrument warranty covers manufacturing faults that are discovered within the warranty period The warranty does not cover components that are replaced during maintenance wor...

Страница 3: ...ting the measuring range AutoRange 17 4 2 6 AutoRead AR drift control 18 4 3 Calibrating 19 4 3 1 Calibrating with the air calibration vessel 21 4 3 2 Calibrating via a comparison measurement 23 4 3 3...

Страница 4: ...List of contents Oxi 330i 340i 4 ba52306e04 03 2008 6 What to do if 47 7 Technical data 51 8 Lists 55...

Страница 5: ...y for all applications The proven OxiCal calibration procedure and the special AutoRead func tion support you in your work with the Oxi handheld meter Note If you need further information or applicati...

Страница 6: ...and other accessories in the WTW catalog or via the Internet Set sample configuration 1 Measuring instrument Oxi 330i 340i 2 Stand 3 50 ml ELY G electrolyte solution for D O probes 50 ml RL G cleanin...

Страница 7: ...measured value STO Switch measuring instrument on off ON OFF Calibration Select the calibration procedure CAL Display transmit measured values RCL Activate deactivate the AutoRead function AR Switch...

Страница 8: ...probes especially WTW probes fulfill these conditions 1 D O probe 2 Plug in power supply optional Oxi 340i only 3 Serial interface RS 232 analog output recorder Oxi 340i only AutoCal DIN AutoCalTEC m...

Страница 9: ...l chapters of this operating manual use safety instructions such as the label shown below to indicate various hazards or dangers Warning indicates instructions that must be followed precisely in order...

Страница 10: ...ron ment the formation of condensate can lead to the faulty functioning of the in strument In this event wait until the temperature of the instrument reaches room temperature before putting the instru...

Страница 11: ...the ON OFF key The display test appears briefly on the display 3 Press the RUN ENTER key repeatedly until the date appears on the display 4 Set the date of the current day with 5 Confirm with RUN ENT...

Страница 12: ...ge at the operating site must lie within the input voltage range of the original plug in power supply see chapter 7 TECHNICAL DATA Warning Use original plug in power supplies only see chapter 7 TECHNI...

Страница 13: ...is also not active z if the power is supplied by the plug in power supply z if the communication cable and a PC with a running communication pro gram are connected z if the recorder cable is connected...

Страница 14: ...when you want to measure Note Incorrect calibration of D O probes will result in incorrect measured values Calibrate at regular intervals Note The Oxi 340i handheld oxygen meter automatically recogni...

Страница 15: ...tent correction 1 Perform the preparatory activities according to section 4 2 1 2 Immerse the D O probe in the test sample 3 Press the M key repeatedly until the D O concentration in mg l appears on t...

Страница 16: ...activities according to section 4 2 1 2 Immerse the D O probe in the test sample 3 Press the M key repeatedly until the saturation in appears on the display 1 Perform the preparatory activities accord...

Страница 17: ...and also vice versa To switch the automatic measurement range selection on off see section 4 6 CONFIGURATION When the AutoRange function is switched on ARng ap pears on the display Measuring ranges r...

Страница 18: ...en hold function 3 Start AutoRead with RUN ENTER The AR display indicator flashes until a stable measured value is reached 4 If necessary start the next AutoRead measurement with RUN EN TER 5 To termi...

Страница 19: ...ibration vessel ac cessory to calibrate the DurOx 325 use the OxiCal D air calibration vessel contained in the scope of delivery of the sensor z Calibration via a comparison measurement e g Winkler ti...

Страница 20: ...es the current status of the sensor against the relative slope The evaluation appears on the dis play The relative slope has no effect on the measuring accuracy Low values indicate that the electrolyt...

Страница 21: ...AL appears 5 Press the RUN ENTER key AutoRead is active AR flashes 6 As soon as a stable value is reached the AR display indicator stops flashing This indicates that the calibration is complete the se...

Страница 22: ...will find the measures to take for error elim ination 7 Switch to the measuring mode with M ARng mg l 8 LoBat Time Baud Day Month No Ident Year Sal mbar 1 RCL Store Auto F 1 cm K TDS UpH Sal mV pH S m...

Страница 23: ...s If the measured value is stable the instrument displays the determined measured value and the cor rection factor of the relative slope initial value 1 000 5 Remove the D O probe from the calibrating...

Страница 24: ...Operation Oxi 330i 340i 24 ba52306e04 03 2008 Note If the correction factor deviates from 1 000 the display of the measured value unit flashes 8 Switch to the measuring mode with M or RUN ENTER...

Страница 25: ...ity equivalent the measured salinity of the test sample range 0 0 70 0 and to switch on the salinity correction Entering the salt content Note How to switch on the salt content correction is described...

Страница 26: ...in two ways z Save manually z Switch on AutoStore Int 1 4 4 1 Saving manually You can transmit a measured value to the data storage as follows 1 Press the STO key The current number location number N...

Страница 27: ...ring mode No TP C m Sal mg l 8 LoBat Time Baud Day Month Year Sal mbar 1 S RCL AR Auto Cal F 1 cm K TDS UpH mV pH S cm cm M Lin Tref25 Tref20 nLF AutoCal DIN AutoCalTEC 4 3 7 8 O ARng Store 7 1 Ident...

Страница 28: ...is the AutoStore function is switched off To switch the function on set an interval 5 s 10 s 30 s 1 min 5 min 10 min 15 min 30 min 60 min 1 Press the RUN ENTER key and hold it down 2 Press the STO key...

Страница 29: ...storage locations are occupied AutoStore is terminated Int 1 OFF If there are not enough storage locations available for your measure ments Output and backup the data storage see page 30 and clear the...

Страница 30: ...s on the display The storage location of the data record is displayed for approx 2 s then the respective temperature appears Display further elements of the data record ID number date time storage loc...

Страница 31: ...ired date appears on the display After approx 2 s the temperature of the displayed measured value appears 1 Press the RCL key repeatedly until Sto SEr appears on the dis play 2 Press the RUN ENTER key...

Страница 32: ...dent 10 No 3 09 03 99 17 12 7 88 mg l 17 6 C Tauto Ident 10 No 4 09 03 99 17 15 7 11 mg l 17 8 C Tauto SAL 17 9 Ident 7 1 Press the RCL key repeatedly until CAL dISP appears on the dis play 2 Press th...

Страница 33: ...tch back to the measuring mode 1 Press the RCL key repeatedly until CAL appears on the display 2 Press the RUN ENTER key The calibration protocol is transmitted to the interface After the data transmi...

Страница 34: ...ear all data records Note The calibration data remain stored and can be called up 1 Switch off the measuring instrument 2 Press the STO key and hold it down 3 Press the ON OFF key The display test app...

Страница 35: ...he analog recorder output page 37 measured values are output as voltage values z With the KOM pilot communication kit accessory data can be transmit ted bidirectionally page 38 Note If you connect a r...

Страница 36: ...ss the RUN ENTER key and hold it down 2 Press the RCL key Int 2 appears on the display 3 Set the required interval between the saving procedures with 4 Confirm with RUN ENTER The measuring instrument...

Страница 37: ...ng 2 and 3 The signal range of the analog output depends on the measured variable and the measuring range Concentration Saturation D O partial pressure 1 free 2 Plug coding 3 Ground 4 Analog output 1...

Страница 38: ...in earthed media as incorrect values would result Set up the following transmission data on the PC printer Socket assignment 4 5 4 Remote control Oxi 340i The measuring instrument can be remotely cont...

Страница 39: ...r no input possible Calibration interval Int 3 1 14 999 d AutoRange ARng On or off Date time Any 1 Switch off the measuring instrument 2 Press the M key and hold it down 3 Press the ON OFF key The dis...

Страница 40: ...Set the required interval in days with 8 Confirm with RUN ENTER ARng appears on the display C 1 TP ARng mg l LoBat Baud Day Month No Ident Year Sal mbar S RCL AR Store Auto F 1 cm K TDS UpH Sal mV pH...

Страница 41: ...nt year with 16 Confirm with RUN ENTER The hours flash on the display 17 Set the current time with 18 Confirm with RUN ENTER The minutes flash on the display 19 Set the current time with 20 Confirm wi...

Страница 42: ...tion parameters InI are reset to the delivery status Resetting the measuring parameters Measuring mode D O concentration AutoRange automatic measure ment range selection On YES Relative slope 1 00 Cor...

Страница 43: ...nt switches to the configuration parameters O UpH ARng Y Sal Sal K TP C F Store cm 1 1 S M m mg l cm S cm mV pH mbar Baud 4 Day Month No Time Auto LoBat Tref25 nLF RCL AR Cal Lin Tref20 TDS AutoCal DI...

Страница 44: ...Operation Oxi 330i 340i 44 ba52306e04 03 2008...

Страница 45: ...Warning Make sure that the poles of the batteries are the right way round The signs on the batteries must correspond to the signs in the bat tery compartment Only use leakproof alkaline manganese bat...

Страница 46: ...ective transport packing We recommend Keep the packing material The original packing protects the instrument against damage during transport Batteries This note refers to the battery regulation that a...

Страница 47: ...he CAL and ON OFF keys at the same time and release them again The software version is displayed Cause Remedy Display range exceeded D O probe Not connected Connect the probe Cable broken Replace prob...

Страница 48: ...measured value Membrane contaminated Clean membrane Cause Remedy Insufficient flow Provide flow to the probe Cause Remedy High amount of dissolved substances Correct solubility function using the sal...

Страница 49: ...like to know which software version is in the instrument Cause Remedy All memory locations are full Output data storage and clear data storage Cause Remedy e g question of the WTW service department...

Страница 50: ...What to do if Oxi 330i 340i 50 ba52306e04 03 2008...

Страница 51: ...resolu tion of temperature Length mm 172 Width mm 80 Height mm 37 Weight kg Approx 0 3 Type of protection IP 66 Protective class III cETLus CE Storage 25 C 65 C Operation 10 C 55 C Climatic class 2 m...

Страница 52: ...alue at an ambient temperature of 5 C 30 C Temperature compensation 2 at 0 40 C T C 0 1 Salinity correction 0 70 0 SAL Air pressure correction Automatic through installation of pressure sensor in the...

Страница 53: ...ff Cable length Max 15m Batteries 4x1 5V alkali manganese batteries Type AA Operational life Approx 3000 operating hours Mains only Oxi 340i The following specifications apply to all plug in power sup...

Страница 54: ...rotection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in...

Страница 55: ...viations explains the indicators and the abbreviations that ap pear on the display and in the manual Specialist terms The glossary briefly explains the meaning of the specialist terms However terms th...

Страница 56: ...lsius Cal Calibration D O Dissolved Oxygen E3 Error message see chapter 6 WHAT TO DO IF InI Initialization Resets individual basic functions to the status they had on delivery LoBat Batteries almost e...

Страница 57: ...in a gas mixture or liquid D O saturation Short name for the relative D O saturation Note The D O saturation value of air saturated water and the D O saturation value of oxygen saturated water are di...

Страница 58: ...lt dissolved in water Slope The slope of a linear calibration function Slope relative Designation used by WTW in the D O measuring technique It ex presses the relationship of the slope value to the va...

Страница 59: ...n 42 Interval data transmission 35 save 28 K Keys 7 L LoBat 47 M Measuring ranges 17 Measuring ranges with CellOx325 51 Measuring ranges with DurOx 52 Measuring ranges with DurOx325 51 Measuring the D...

Страница 60: ...Index Oxi 330i 340i 60 ba52306e04 03 2008...

Страница 61: ...Wissenschaftlich Technische Werkst tten GmbH Dr Karl Slevogt Stra e 1 D 82362 Weilheim Germany Tel 49 0 881 183 0 49 0 881 183 100 Fax 49 0 881 183 420 E Mail Info WTW com Internet http www WTW com...

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