Thermo Scientific NIVETEC Orion 2109XP User Manual Download

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Troubleshooting

VI-14

Thermo Scientific Orion 2120XP Calcium Hardness Analyzer User Guide

Error/event codes will be in the format “E###”. Some of these are errors,

some are warnings, and some are purely informational. The first digits

identify the type of error or event as identified in the table below.

Error/Event Codes

Displayed

Event Code

Description

Cause

Troubleshooting

System Status Codes

A711

ALARM1 CH1 ON

Alarm 1 channel 1 engaged (closed)

A712

ALARM2 CH1 ON

Alarm 2 channel 1 engaged (closed)

A713

ALARM3 CH1 ON

Alarm 3 channel 1 engaged (open)

A714

AIR PUMP ON

Air pump engaged

A721

ALARM1 CH2 ON

Alarm 1 channel 2 engaged (closed)

A722

ALARM2 CH2 ON

Alarm 2 channel 2 engaged (closed)

A723

ALARM3 CH2 ON

Alarm 3 channel 2 engaged (open)

A811

ALARM1 CH1 OFF

Alarm 1 channel 1 disengaged (open)

A812

ALARM2 CH1 OFF

Alarm 2 channel 1 disengaged (open)

A813

ALARM3 CH1 OFF

Alarm 3 channel 1 disengaged (closed)

A814

AIR PUMP OFF

Air pump disengaged

A821

ALARM1 CH2 OFF

Alarm 1 channel 2 disengaged (open)

A822

ALARM2 CH2 OFF

Alarm 2 channel 2 disengaged (open)

A823

ALARM3 CH2 OFF

Alarm 3 channel 2 disengaged (closed)

C500

CAL MODE

Calibration mode entered

R400

MEAS MODE

Measure mode entered

S600

SETUP MODE

Setup mode entered

E028

POWER FAIL

Brown out or power failure and system has
stopped processing

Verify custom settings

E033

KEYPAD FAILURE

User did not press the keys during a
diagnostic mode keypad test or keypad broken

Repeat diagnostic mode keypad test

E034

CAL PASS INCORRECT

User entered incorrect calibration password

Verify password

E035

SYSTEM PASS INCORRECT

User entered incorrect system password

Verify password

E036

USER VALUE INCORRECT

User entered a value that is out of range

Verify value and re-enter

E037

POWER RETURN

System started processing after brown out or
power failure

Verify custom settings

E040

BLANK INCORRECT

Blank greater than 1ppb

Verify scrolled blank value is correct and less than 1ppb.
Repeat DKA if needed.

E041

CALIBRATION TIMEOUT

The electrode has not reach stability within
the specified time

The system code may be due to out of range
measurements or an invalid previous calibration

E042

INVALID SLOPE

Invalid slope obtained during calibration

Check electrodes, electrode cables and connectors for
defects or shorts. Replace electrodes, if necessary.
Recalibrate using new standards in the correct
calibration sequence.

Summary of Contents for NIVETEC Orion 2109XP

Page 1: ...Thermo Scientific Orion 2120XP Calcium Hardness Analyzer User Guide 263639 009 Rev A 09 09 ...

Page 2: ...GLPcheck GLPdoc ISEasy KAP LabConnect LogR Low Maintenance Triode Minimum Stir Requirement MSR NISS One Touch One Touch Calibration One Touch Measurement Optimum Results Orion Star Pentrode pHuture MMS pHuture Pentrode pHuture Quatrode pHuture Triode Quatrode QuiKcheK rf link ROSS Resolution SAOB SMART AVERAGING Smart CheK SMART STABILITY Stacked Star Navigator 21 Stat Face The Enhanced Lab Therma...

Page 3: ...ng Instructions II 2 Sample Requirements II 3 Electrical Wiring II 4 Safety Requirements II 4 Warning Labels and Locations II 5 Wiring the Analyzer II 6 Terminal Assignments II 8 Electrode Wiring Assignments II 9 Installation of Reagent and Diffusion Tubing II 10 Installation of New Electrode Cables II 11 Installation of a New Calcium Electrode II 12 Installation of the ATC Probe II 12 Installatio...

Page 4: ... V 1 Maintenance Schedule V 1 Weekly Maintenance V 1 Monthly Maintenance V 2 Yearly Preventative Maintenance V 5 Chapter VI Troubleshooting VI 1 Diagnostics Mode VI 1 Slope Problems VI 9 Troubleshooting Matrix VI 11 Error Event Codes VI 14 Resetting the Analyzer VI 17 Serial Number and Software Revision VI 18 Service and Repair VI 19 Chapter VII Customer Service VII 1 Notice of Compliance VII 1 WE...

Page 5: ...he system must optimize the fluidic design with the sensing technology to provide accurate and precise results with an almost instantaneous indication of calcium hardness concentration changes The 2120XP calcium hardness analyzer meets all of the criteria for accurate and dependable calcium hardness monitoring and more The 2120XP analyzer incorporates innovative technologies that include Premium e...

Page 6: ... 500 ppm Reliable measurements and a wide measurement range with selectable resolution Measures calcium ion activity in aqueous solutions quickly accurately and economically Premium reference and sensing electrodes Superior accuracy and stability over a wide temperature range Advanced flow cell design with air stirring Automatic sample handling and contamination control with no moving parts Patent...

Page 7: ... and fast response The sample then flows into an atmospheric drain via the diverter valve Principles of Operation Safety Drain for Reagent Overflow RestrictorTubing Pressurizes Flow Cell to Initiate Siphoning Flow Meter Valve Positions Calibration Mode PUSH Sample Measure Mode PULL Analyzer 1 2 3 4 5 Power 4 20mA Output Air Pump Flow Meter Inlet Valve Bypass Needle Valve and Filter Regulator Valve...

Page 8: ...e the 2120XP analyzer microprocessor constantly updates temperature corrections from data supplied by the ATC probe From the Nernst equation the theoretical response of a calcium ion selective electrode to a ten fold change in concentration at 25 C is 29 58 mV This is referred to as the electrode slope S Most electrodes however do not exhibit a theoretical slope Therefore the analyzer is calibrate...

Page 9: ...matically when stability is reached Adding standard 2 preferably 10 times more concentrated than standard 1 increases the concentration dC2 in the sample reservoir Again the new potential E2 is measured and stored when the reading is stable Now we have the following three unknowns Es Eo S Ts 298 15 log Cs Ciso E1 Eo S T1 298 15 log Cs dC1 Ciso E2 Eo S T2 298 15 log Cs dC1 dC2 Ciso S is the Slope a...

Page 10: ...ion To perform an offline calibration a sample is taken from the bypass of the analyzer the sample concentration value is stored in memory the sample is analyzed by an alternate method of choice the previously stored reading is adjusted to the lab method result and the analyzer is then returned to the analysis mode The term offline calibration refers only to the fact that a sample from 2120XP anal...

Page 11: ...unting Hole Keypad Flow Cell Reservoir Siphon Tube Flow Cell Block Inlet Valve Reagent Bottle Adapter Assembly Pressure Regulator Status Indicators Flow Meter Calibration Port Reference Filling Solution Restructor Tube Assembly Air Pump Bypass Needle Valve Inlet Filter Reagent Manifold Diverter Valve Diffusion Tubing Assembly Reagent Bottle Figure I 3 Fluidics Diagram ...

Page 12: ...e sample flow in and out of the reagent bottle assembly Reagent Bottle Adapter Assembly Connects the reagent bottle assembly to the manifold Diffusion Tubing Assembly Semi permeable tubing through which reagent diffuses into the sample Reagent Bottle Contains formic acid reagent that lowers the sample pH to below 4 Flow Cell Contains the calcium sensing electrode reference electrode and ATC probe ...

Page 13: ... Consists of five mode keys four prompt indicator lights two scroll keys and one key for entering data Mode and error indicators are also incorporated on keypad Status Indicator Two LED lights that illuminate according to current status of the analyzer Green Light Indicates that system is in correct working condition Yellow Light Indicates a warning system in hold or that maintenance is required R...

Page 14: ...s Combined with decades of superior Thermo Scientific Orion sensor technology our systems provide rapid results with complete stability Cat No Description 2100PH2 Second channel module for pH ORP 2100CD2 Second channel module for conductivity When a pH ORP module or conductivity module is installed on the second channel of the 2120XP calcium hardness analyzer refer to the Thermo Scientific Orion 2...

Page 15: ...ium electrode box reference electrode box calcium standard solutions kit two 2 oz bottles of 191 ppm CaCO3 standard and two 2 oz bottles of 1920 ppm CaCO3 standard the options kit and user guide CD 3 Remove the cardboard retaining shell by sliding it over the entire mounting board and the analyzer 4 Carefully remove the entire mounting board with analyzer from the inner box Note Do not lift or pul...

Page 16: ...sampling point as possible This ensures the fastest possible response to a changing sample condition Refer to the Appendix Sample Conditions section For proper flow cell operation the analyzer must be installed straight and level upon its mounting location Failure to level the analyzer may cause poor siphoning in the flow cell 1 Prepare the mounting holes Carefully lift the analyzer and bolt it in...

Page 17: ...ted after inlet valve will remove moderate amounts of particulates Flow rate 40 mL minute nominal Pressure 8 to 100 psig Consult Technical Support for details on sample handling if the pressure is outside of this range Temperature Temperature must be between 5 and 40 C Calcium level Calcium levels are read directly in ppb or ppm when calibrated with Thermo Scientific Orion calcium standards 1 and ...

Page 18: ...azard disconnect the power prior to opening the analyzer Before connecting the analyzer to the main make sure that the voltage lies within either range 85 to 132 V 200 mA or 170 to 264 V 100 mA 50 to 60 Hz AC Cutting off the power by disconnecting power source will not reset the analyzer This analyzer incorporates a non volatile memory and will maintain calibration and settings after power failure...

Page 19: ...ollow these instructions may result in injuries The safety warning icons are used in two locations on the analyzer Faceplate Refer to Figure II 2 Power supply Refer to Figure II 3 Note Replace the fuse only with a fuse of same rating Ch 1 status Ch 2 status t Ch 1 t Ch 2 Figure II 2 Faceplate Fuse Holder Fuse Fuse Power Supply Fuse Type 115V 250V 200mA Fast Acting 230V 250V 100mA Fast Acting 170 2...

Page 20: ...r 2 mm blade flat head screwdriver 1 Open the faceplate loosen the four screws using a Phillips head screwdriver The electronics faceplate will open via the hinge pin connection 2 Remove one or two of the two unused cable glands as required for wiring power cable or auxiliary connections Power cable optional hole locations are shown in Figure II 4 3 Select and install the appropriate size cable gl...

Page 21: ...ion 6 Plug the terminal connector into the power supply Refer to Figure II 3 7 Select the correct fuse from the fuse kit Install by inserting the fuse in the fuse holder and secure it using the twist and lock method The fuses are clearly labeled with the appropriate voltages for your system Refer to Figure II 3 Refer to the table below for fuse selection AC Voltage Fuse Rating 115V 200mA 250V Fast...

Page 22: ...31 Preamp ground 5 Air pump ISE only 13 Relay 3 32 Shield 6 Shield ground for conductivity 14 Relay 3 33 Shield 7 Do not connect 15 Do not connect 34 Jumper to pin 26 when using preamp 8 Do not connect 16 Temperature ground 17 Temperature drive 18 Temperature sense 19 Solution ground 20 Conductivity drive 21 Conductivity sense 22 Conductivity sense 23 Conductivity drive 24 Reference electrode 25 J...

Page 23: ...ature sense Jumper to 17 19 Solution ground Connect red wire 2001SC pH Electrode 24 Reference electrode Connect black wire 26 Sensing electrode Connect clear wire 110250 ORP Electrode 19 Solution ground Connect black wire 24 Reference electrode Connect purple wire 26 Sensing electrode Connect coax center wire 2002CC and 2002SS Conductivity Probes 6 Shield ground for conductivity Connect clear wire...

Page 24: ...g 4 Fit the ends of the new diffusion tubing over the bottle adaptor nipples 5 In a hood or outdoors carefully remove the cap from a new reagent bottle 6 Make sure that the large O ring is between the reagent bottle and bottle adaptor Slide the diffusion tubing loops into the reagent bottle and screw the bottle adaptor onto the new reagent bottle 7 Ensure that the three small O rings are in place ...

Page 25: ...ing location 1 Open the ferrite using a flat tip screwdriver to lift the latch of the ferrite 2 Feed the cable wires through the center of the ferrite and then loop the cable wires around the ferrite core and through the center of the ferrite again 3 Place the ferrite at the bottom of the analyzer chassis near its edge Adjust the ferrite location on the cable so the ferrite is near the top of the ...

Page 26: ...l cap Refer to Figure II 9 for the location 3 Plug the electrode cable marked Sensing into the top of the electrode Be sure to push back the black cap to verify a secure connection between the male and female pin connection prior to tightening 4 Tighten the screw cap connection to the cable Note Do not twist the cable while tightening the connection Twisting may cause damage requiring premature re...

Page 27: ...position Check that the rubber gasket is properly aligned and then connect the cap end of the tubing assembly to the bottle The 1 8 inch tubing should extend into the bottle 6 Hold the reservoir bottle above the electrode with the bottle cap end down The electrode should be horizontal with the sidearm pointing up Gently shake the electrode to allow any trapped air bubbles to rise into the bottle a...

Page 28: ...put signals 9 Plug the electrode cable marked Reference into the top of the electrode and tighten the screw cap Be sure to push back the black cap to verify a secure connection between the male and female pin connection prior to tightening 10 Tighten the screw cap connection to the cable Note Do not twist the cable while tightening the connection Twisting may cause damage requiring premature repla...

Page 29: ... type of board installed and selected measurement parameter D Measurement Units Left and right side of middle and bottom display lines ISE board ppm or ppb auto ranging pH mV board pH or mV Conductivity board µS cm or mS cm conductivity MΩ cm resistivity SAL1 or SAL2 in the marquee salinity PCT1 or PCT2 in the marquee concentration and TDS1 or TDS2 in the marquee TDS Depends on type of board insta...

Page 30: ...f screen Scroll down digit numbers Scroll down through a list of options in setup and cal modes Use to edit numeric values Use to select available options 0 through 9 selectable by digit first digit sometimes selectable 0 through 19 Enters log view mode Use to view data in calibration measure and status logs function Enters negative positive sign when editing numbers Enter function Use to accept v...

Page 31: ...um Press to save the entered parameter for the selected menu option Press to exit the current screen and return to the previous screen Press to exit the setup mode and return to the measure mode If is pressed will not return the operator to the setup mode The operator must reenter the setup mode by pressing If a single channel analyzer is in use all of the menu options are accessible by pressing i...

Page 32: ...r to enter system password Marquee ENTER PASSWORD Main display top PASS Main display bottom 0000 flashing Correct password Allows operator to enter setup mode for custom programming options Incorrect password Password incorrect or not entered correctly System password Marquee SYSTEM PASS INCORRECT Main display E035 Calibration password Marquee CAL PASS INCORRECT Main display E034 Verify password a...

Page 33: ...tact Technical Support at 1 800 225 1480 Set the date in US or Europe format Enter month day and year Default date System will continue to keep date and time due to battery back up operator must set in accordance to local time zone If the battery is removed the system will show 01 01 2000 Set the time Enter hour and minutes in 24 hour format Default time System will continue to keep date and time ...

Page 34: ...f the keypad and software are not responding refer to Chapter VI Resetting the Analyzer Warning Resetting the analyzer will lose all stored information including relay logs and calibration settings Set the automatic lighting options for the backlit display AUtO Brightness will change in response to ambient light source On Backlit display is always on OFF Backlit display is always off Default displ...

Page 35: ... Set the number of significant digits mV display option and concentration units displayed when in the measure mode Set the number of significant digits displayed measure mode Scroll through 2 3 or 4 significant digits Default significant digits 3 Enable mV values to be displayed on the second line Scroll between On or OFF Default mV setting OFF Set the displayed concentration units Scroll through ...

Page 36: ...g for all alarms OFF Set the two analog current outputs SOUt and tOUt Scroll between 4 20 mA or 0 20 mA current signals The outputs share a common return but are isolated from the main circuitry of the analyzer Default output current 4 20 mA Scroll between logarithmic LOg and linear LIn scale for SOUt Set the low and high limits for the sensor output SOUt Default 1 0 ppb low and 100 ppb high Set t...

Page 37: ...or SOUt and temperature tOUt low and high values Relay status Set RLY1 RLY2 and RLY3 status to OFF or On Set calibration frequency in hours High limit is 19999 hours Low limit is 00000 hours Default setting 720 hours Set values for customized Double Known Addition DKA Programmable for volume mL of flow cell concentration ppm and volume mL of standard 1 concentration ppm and volume mL of standard 2...

Page 38: ...de indicator in the mode window HOLD is displayed while in the setup mode The system will enter the setup mode at the last saved menu option PASS DATE TIME LOG RSET DISP MEAS HOLD TADJ ALRM mAMP mADJ TEST CAL DKA SEL SCrn The displayed menu options depend on the measurement capability of the analyzer Press to loop through the menu options Press to select the desired menu option and enter the subme...

Page 39: ...mADJ TEST CAL PH SEL SCrn SEL SCrn SEL SCrn SEL SCrn SEL SCrn SEL SCrn SEL SCrn SEL CH1 SEL CH1 SEL CH1 SEL CH1 SEL CH1 SEL CH1 SEL CH1 SEL CH1 SEL CH1 SEL SCrn SEL CH2 SEL CH2 SEL CH2 SEL CH2 SEL CH2 SEL CH2 SEL CH2 SEL CH2 SEL CH2 SEL CH2 The list of menu options shown for CH2 are examples only The displayed menu options for CH2 depend on the measurement capability of the channel If only one boa...

Page 40: ...T UP NEW SYSTEM PASSWORD PASS change flashing digit Do not scroll first digit above 9 Press to accept the system password and advance to the next screen to set the calibration password 0 0 0 0 SET UP NEW CALIBRATION PASSWORD PASS first digit flashing Press to set the first digit Press to move to the next digit Press to set the values of the remaining digits and press to move through the remaining ...

Page 41: ...dvance to the next screen 01 01 2000 ENTER DATE MM DD YYYY US or ENTER DATE DD MM YYYY EUrO Month Day 2 0 Year or Day Month 2 0 Year first digit flashing Press to set the first digit Press to move to the next digit Press to set the values of the remaining digits and press to move through the remaining digits ENTER DATE MM DD YYYY US or ENTER DATE DD MM YYYY EUrO Month Day 2 0 Year or Day Month 2 0...

Page 42: ...HR TIME HOUR MINUTE hour minute first digit flashing Press to set the first digit Press to move to the next digit Press to set the values of the remaining digits and press to move through the remaining digits ENTER 24HR TIME HOUR MINUTE hour minute change flashing digit Set in 24 hour time format Press to accept the time setting and return to the main setup mode TIME flashing SEL SCrn Press to scr...

Page 43: ...ress to set the first digit Press to move to the next digit Press to set the values of the remaining digits and press to move through the remaining digits SET LOG TIME IN HOUR MINUTE hour minute LOg change flashing digit To disable the log enter 0000 for the log interval The minimum log interval is 1 minute and the maximum log interval is 99 hours and 59 minutes Press to accept the log setting and...

Page 44: ...s Press When the reset is complete the system will return to the measure mode The operator will need to re enter the setup mode to continue programming the setup parameters Press to return to the setup mode PUSH TEST VIEW ENTER TO RESET rSEt This command resets all previously set parameters to factory default values Use this command only to set the analyzer to original factory setup values To Abor...

Page 45: ...splay Notes DISP DISP flashing SEL SCrn Press to set the lighting option for the backlit display AUtO BACK LITE LItE AUtO flashing Press to scroll through AUtO OFF and On settings BACK LITE LItE AUtO OFF or On flashing Press to accept the display setting and return to the main setup mode DISP flashing SEL SCrn Press to scroll to the next menu ...

Page 46: ...a menu option and customize the parameter refer to the menu option displays that are shown on the following pages for detailed instructions CH1 flashing SEL SCrn Press to scroll to the next menu Default Operator Action Scrolling Marquee Main Display Notes CH2 CH2 flashing SEL SCrn CH2 will not be shown in scrolling marquee if only one board is installed Press to set the channel 2 specific menus in...

Page 47: ...E CHANNEL DISPLAY OFF flashing Press to scroll between OFF and On SHOW MV ON SINGLE CHANNEL DISPLAY OFF or On flashing Press to accept the setting and advance to the next screen AUtO SELECT ISE UNIT UnIt AUtO flashing Press to scroll through AUtO PPb and PP SELECT ISE UNIT UnIt AUtO PPb or PP flashing PP is used as an abbreviation for ppm Press to accept the setting and return to the main setup mo...

Page 48: ... HOLD STATE LAST OR USER VALUE LASt flashing Press to scroll between LASt and USEr ENTER HOLD STATE LAST OR USER VALUE LASt or USEr flashing Press to accept the setting and advance to the next screen 21 0 ENTER FIXED USER VALUE IN mA first digit flashing Displayed if USEr was selected in previous screen Press to set the first digit Press to move to the next digit Press to set the values of the rem...

Page 49: ... cont d Press to accept the setting and return to the main setup mode CH1 or CH2 flashing SEL SCrn Displayed for two channel analyzer Press to return to the channel specific menu options in the setup mode Action required for two channel analyzer HOLD flashing SEL SCrn SEL CH1 or SEL CH2 on main display of two channel analyzer Press to scroll to the next menu ...

Page 50: ...to the next digit Press to set the value of the next digit TEMPERATURE ADJUSTMENT AdJ c change flashing digit The maximum temperature adjustment is 5 0 C Press to set a positive or negative temperature value TEMPERATURE ADJUSTMENT AdJ c Press to accept the setting and return to the main setup mode CH1 or CH2 flashing SEL SCrn Displayed for two channel analyzer Press to return to the channel specif...

Page 51: ...reen 100 ppb Set the HI or LO value for rLY1 Press to move the decimal point Press to set the first digit Press to move to the next digit Press to set the values of the remaining digits and press to move through the remaining digits ENTER VALUE rLY1 change flashing digit Displayed if HI or LO was selected for rLY1 in previous screen Press to accept the setting and advance to the next screen Action...

Page 52: ...2 in previous screen Press to accept the setting and advance to the next screen Action required if HI or LO was selected for rLY2 in previous screen OFF SELECT CALIBRATION HOLD ERROR OR OFF rLY3 OFF flashing Press to scroll through OFF CAL HOLd and Err SELECT CALIBRATION HOLD ERROR OR OFF rLY3 OFF CAL HOLd or Err flashing Press to accept the setting and return to the main setup mode CH1 or CH2 fla...

Page 53: ... advance to the next screen 1 ppb mA SENSOR OUTPUT LOW VALUE LO first digit flashing Press to move the decimal point Press to set the first digit Press to move to the next digit Press to set the values of the remaining digits and press to move through the remaining digits mA SENSOR OUTPUT LOW VALUE LO change flashing digit Press to accept the setting and advance to the next screen 100 ppb mA SENSO...

Page 54: ...T LOW VALUE LO C change flashing digit Press to accept the setting and advance to the next screen 45 0 C mA TEMP OUTPUT HIGH VALUE HI c first digit flashing Press to set the first digit Press to move to the next digit Press to set the values of the remaining digits and press to move through the remaining digits mA TEMP OUTPUT HIGH VALUE HI c change flashing digit Press to accept the setting and re...

Page 55: ... OUTPUT ADJUSTMENT AdJ 0 0 last flashing digit Press to set the sensor mA offset value Press to set a positive or negative sensor mA offset SENSOR 4 20mA OUTPUT ADJUSTMENT AdJ 0 0 change flashing digit Press to accept the setting and return to the main setup mode CH1 or CH2 flashing SEL SCrn Displayed for two channel analyzer Press to return to the channel specific menu options in the setup mode A...

Page 56: ... the temperature mA offset value Press to set a positive or negative temperature mA offset TEMP 4 20mA OUTPUT ADJUSTMENT AdJ 0 0 change flashing digit Press to accept the setting and return to the main setup mode CH1 or CH2 flashing SEL SCrn Displayed for two channel analyzer Press to return to the channel specific menu options in the setup mode Action required for two channel analyzer mADJ flashi...

Page 57: ...ess to scroll between SOUt and tOUt settings and select tOUt SELECT TEMP OR SENSOR OUTPUT 4 20 tOUt flashing Press to display the tOUt low value Actual low value displayed mA TEMP OUTPUT LOW VALUE LO c 4 0 mA are sourced at output terminal 11 Press to display the tOUt high value Actual high value displayed mA TEMP OUTPUT HIGH VALUE HI c 20 mA are sourced at output terminal 11 Press to accept the t...

Page 58: ...PUT 4 20 SOUt flashing Press to display the SOUt low value Actual low value displayed mA SENSOR OUTPUT LOW VALUE LO 4 0 mA are sourced at output terminal 9 Press to display the SOUt high value Actual high value displayed mA SENSOR OUTPUT HIGH VALUE HI 20 0 mA are sourced at output terminal 9 Press to accept the test and return to the main setup mode CH1 or CH2 flashing SEL SCrn Display for two cha...

Page 59: ...test Actual rLY2 status Press to set the rLY2 setting OFF or On USE ARROWS TO TOGGLE RELAY 2 rLY2 OFF or On Relay contact according to screen indication Press to accept the rLY2 test and move to the rLY3 test Actual rLY3 status Press to set the rLY3 setting OFF or On USE ARROWS TO TOGGLE RELAY 3 rLY3 OFF or On Relay contact according to screen indication Press to accept the rLY3 test and return to...

Page 60: ...et the value to 0000 Press to set the first digit Press to move to the next digit Press to set the values of the remaining digits and press to move through the remaining digits ENTER CALIBRATION FREQUENCY IN HOURS CAL change flashing digit Press to accept the setting and return to the main setup mode CH1 or CH2 flashing SEL SCrn Displayed for two channel analyzer Press to return to the channel spe...

Page 61: ... CELL VOLUME IN mL FCEL change flashing digit Press to accept the setting and advance to the next screen 191 ppm SET STD1 CONCENTRATION COnC flashing Press to set the first digit Press to move to the next digit Press to set the values of the remaining digits and press to move through the remaining digits SET STD1 CONCENTRATION COnC change flashing digit Press to accept the setting and advance to t...

Page 62: ... setting and advance to the next screen 0 5 mL SET STD2 VOLUME IN mL Std2 flashing Press to set the first digit Press to move to the next digit Press to set the values of the remaining digits and press to move through the remaining digits SET STD2 VOLUME IN mL Std2 change flashing digit Press to accept the setting and return to the main setup mode CH1 or CH2 flashing SEL SCrn Displayed for two cha...

Page 63: ...he TEST menu until AIr appears in the main display 5 Press 6 Press to toggle between On and OFF settings for the air pump power Select the OFF setting Changing the air pump setting to On or OFF will be indicated by a click sound 7 Press to accept the setting and return to the TEST menu 8 Press to return to the measure mode 1 Shut off sample flow prior to the analyzer inlet Refer to Chapter IV Flow...

Page 64: ...n the maintenance records Re install the reagent bottle on the analyzer 2 Restore sample flow to the analyzer If necessary adjust pressure and flow rate through the analyzer to 40 mL min 3 Remove the protective cap from the reference electrode Re install the electrodes on the analyzer Be careful not to disconnect the reservoir tubing from the reference electrode sidearm 4 Allow the analyzer to sta...

Page 65: ...ibration is quick and accurate using a simple pipet to inject two known standards into the sample matrix Prior to performing a calibration refer to Chapter III Use of the Setup Mode for instructions on how to properly configure the 2120XP analyzer The value of the calibration standards volume of the calibration standards and the volume of the flow cell must be entered in the setup mode Adjust the ...

Page 66: ...Refer to Chapter IV Rinsing the Flow Cell For accurate volume displacement install the sensing electrode reference electrode and ATC probe in their respective flow cell cap ports Refer to Chapter II Installation of a New Calcium Electrode Chapter II Installation of the ATC Probe and Chapter II Installation of a New Reference Electrode Close the calibration port When rinsing the flow cell before a ...

Page 67: ...l in the flow meter indicates the correct flow rate reading see D The flow rate should be adjusted to 40 mL minute Pull out the knob to unlock the setting and allow adjustment of the flow rate Turn the knob clockwise to increase the flow rate Turn the knob counterclockwise to decrease the flow rate Push in the knob to lock the setting 4 Push in the diverter valve on the flow cell The flow cell wil...

Page 68: ...alcium Hardness Analyzer User Guide The Thermo Scientific Orion 2120XP calcium hardness analyzer utilizes pressure gravity and fluid dynamics as the principal force of operation for the fluidic system Air Regulation Figure IV 3 50 40 30 20 10 Air Pump ...

Page 69: ...quipment or technique refer to the Appendix Pipet Operation section Do not touch the pipet tip with bare fingers Risk of contamination is possible Use powder free gloves to prevent contamination When using a pipet to inject standards during calibration use a fresh pipet tip for each standard and each injection When a fresh tip is installed rinse the tip with the same concentration standard as the ...

Page 70: ...ctual concentration reading 2 Press to initiate the calibration CAL appears as mode 3 If the calibration password is active enter the calibration password by pressing to set the first digit to move to the next digit to set the values of the remaining digits and to move through the remaining digits Press to accept the password ENTER PASSWORD PASS 4 CH1 or CH2 flashing CAL CHnL Displayed for two cha...

Page 71: ...F 12 Wait 2 minutes STARTING CALIBRATION MEASURING BACKGROUND WAIT 2 MINUTES Actual readings flashing System circulates sample Minutes will be counted down on the marquee 13 Wait 0 to 8 minutes AWAITING DATA STABILITY Actual readings flashing System continuously evaluates the data until a stable condition is met If there is a calibration error the appropriate error message will be displayed 14 Add...

Page 72: ...o the flow cell using the 0 5 mL pipet ADD STD2 PRESS ENTER Add Std2 19 Press ADD STD2 PRESS ENTER Add Std2 20 Wait 2 minutes MEASURING STD2 CIRCULATING WAIT 2 MINUTES Actual readings flashing System circulates sample Minutes will be counted down on the marquee 21 Wait 0 to 8 minutes AWAITING DATA STABILITY Actual readings flashing System continuously evaluates the data until a stable condition is...

Page 73: ...TO ACCEPT OR PRESS EXIT TO ABORT WITHOUT SAVING Calculated Slope and E0 If is pressed refer to the Calibration Abort Steps section 24 Pull the diverter valve out Turn the inlet valve on Close the calibration port on the flow cell cap PULL DIVERTER VALVE OUT TURN INLET VALVE ON CLOSE CAL PORT PRESS ENTER FLO On 25 Press PULL DIVERTER VALVE OUT TURN INLET VALVE ON CLOSE CAL PORT PRESS ENTER FLO On 2...

Page 74: ...ED PRESS ENTER CAL Abrt Exit 4 Press to abort the calibration CALIBRATION ABORTED PRESS ENTER CAL Abrt Exit 5 Pull the diverter valve out Turn the inlet valve on Close the calibration port on the flow cell cap PULL DIVERTER VALVE OUT TURN INLET VALVE ON CLOSE CAL PORT PRESS ENTER FLO On Exit 6 Press PULL DIVERTER VALVE OUT TURN INLET VALVE ON CLOSE CAL PORT PRESS ENTER FLO On Exit 7 No operator ac...

Page 75: ...nd the electrodes are working properly and then repeat the calibration INVALID SLOPE PRESS ENTER E042 The calculated slope was invalid Standard values were likely entered in the wrong sequence or wrong standard values were entered Error 107 Press to abort the calibration and refer to Exit 3 CALIBRATION DATA TOO CLOSE TOGETHER PRESS ENTER E107 Use new standards Perform electrode cleaning conditioni...

Page 76: ...tion and refer to Exit 3 Verify that the correct standards were used during the calibration the standard values were entered correctly and in the right order and the electrodes are working properly and then repeat the calibration CH1 BAD OFFSET PRESS ENTER E125 Use new standards Perform electrode cleaning conditioning and troubleshooting Error 126 Press to abort the calibration and refer to Exit 3...

Page 77: ...dard 2 values and the volumes to be used Let VC Flow cell volume Default 95 0 mL C1 Standard 1 concentration Default 191 ppm C2 Standard 2 concentration Default 1920 ppm V1 Volume of standard 1 added Default 0 50 mL V2 Volume of standard 2 added Default 0 50 mL dC1 Concentration change due to the first addition dC2 Concentration change due to the second addition dC1 C1 x V1 V1 VC dC2 C2 x V2 V1 V2...

Page 78: ...Fill the flow cell to the calibration level V0 approximately 95 mL 2 Record the concentration displayed when the reading is reasonably stable C0 3 Add standard 1 volume V1 with concentration C1 4 When the reading is reasonably stable record the concentration CS 5 The recorded value should be within 10 of the calculated value according to CS C0 x V0 C1 x V1 V0 V1 C1 should be the concentration actu...

Page 79: ...nnel that will be calibrated and press to begin the calibration CH1 or CH2 flashing CAL CHnL Action required for two channel analyzer 6 DKA or OFFL flashing CAL tYPE 7 Press to select OFFL and press to accept the setting OFFL flashing CAL tYPE 8 Wait 1 to 10 minutes MEASURING SAMPLE WAIT 1 MINUTE AWAITING DATA STABILITY Actual readings flashing System continuously evaluates the data until a stable...

Page 80: ...will be calibrated and press to begin the calibration CH1 or CH2 flashing CAL CHnL Action required for two channel analyzer 15 Press to select OFFL and press to accept the setting OFFL flashing CAL tYPE 16 Enter the concentration value of the QC sample obtained from laboratory analysis Press to move the decimal point and set the value as ppm or ppb Press to set the first digit Press to move to the...

Page 81: ...able with the installation date of the electrode 1 Check that the sample flow rate is 35 to 45 mL minute To alter the flow rate pull out the locking knob of the pressure regulator then rotate the black knob to increase clockwise or decrease counterclockwise sample flow Push in the locking knob of the pressure regulator to lock the flow rate 2 Inspect the analyzer for leakage Diffusion tubing leaka...

Page 82: ...lution is meant to be a several month supply Therefore if the filling solution bottle is less than one quarter full replace the solution This should be checked each month to ensure that the electrode does not run dry 1 Remove the spent filling solution bottle from the clip Unscrew the cap and discard the bottle 2 Remove the cap and seal from a new reference electrode filling solution bottle Check ...

Page 83: ...h 4 Separate the filter cap with bypass needle valve assembly from the filter body retaining the ring 5 Remove the filter element and soft gasket if necessary 6 Replace the gasket and press a new sintered element into the filter body 7 Replace the hex cap and bypass needle valve assembly and reposition the bypass drain line into the drain assembly 8 Retighten the hex cap to approximately 75 pound ...

Page 84: ...g 4 Fit the ends of the new diffusion tubing over the bottle adaptor nipples 5 In a hood or outdoors carefully remove the cap from a new reagent bottle 6 Make sure that the large O ring is between the reagent bottle and bottle adaptor Slide the diffusion tubing loops into the reagent bottle and screw the bottle adaptor onto the new reagent bottle 7 Ensure that the three small O rings are in place ...

Page 85: ...n MSDS files can be downloaded at www thermo com processwater Valve Stem O rings 1 Remove the two screws that hold the valve stem assembly in place 2 Gently pull on the valve stem to remove 3 Slide off the two old O rings and replace them It is not necessary to remove the retaining ring 4 Place the assembly back into the manifold block and tighten screws Note Do not use O ring grease Manifold Face...

Page 86: ...en the restrictor tube fitting from the left side of the flow cell block 4 Pull out the restrictor tube assembly at each end 5 Unscrew the clip behind flow cell that holds the restrictor tube to the panel 6 Replace with a new restrictor tubing assembly 7 Be sure all of the fittings are secure to prevent leaks 8 Open the inlet valve to start sample flow through the analyzer Replacement of Restricto...

Page 87: ...ess to step through the menu items CH1 CALIBRATION SLOPE AND E0 CH2 CALIBRATION CELL CONSTANT CH1 ERROR LIST PRESS VIEW CH2 ERROR LIST PRESS VIEW CH1 SELECT TIME DATE TO VIEW MEASUREMENT LOG CH2 SELECT TIME DATE TO VIEW MEASUREMENT LOG SELECT TIME DATE TO VIEW STATUS LOG SOFTWARE REV NUMBER CH1 SERIAL NUMBER CH2 SERIAL NUMBER CH1 MODEL NUMBER CH2 MODEL NUMBER CH1 MEASURE mV AND NOISE CH2 MEASURE m...

Page 88: ...ation Press to view the last twelve calibrations Calibration Log Default Operator Action Scrolling Marquee Main Display Notes Calibration Log Press while in the measure mode to enter the diagnostics mode or or CALIBRATION SLOPE AND E0 Slope E0 CALIBRATION OFFSET mV offset CALIBRATION CELL CONSTANT Cell Constant Press to display the calibration time and date CALIBRATION TIME DATE HH MM MM DD or DD ...

Page 89: ...r codes 1 5 indicates that one of five error codes is being displayed Press to scroll through the error list Press to display a description of each error code on the marquee Error List Default Operator Action Scrolling Marquee Main Display Notes Error List ERROR LIST PRESS VIEW E Press to display the description of the error code on the marquee Actual description of error code E Press to scroll th...

Page 90: ...tries Measurement Log Default Operator Action Scrolling Marquee Main Display Notes Measurement Log SELECT TIME DATE TO VIEW MEASUREMENT LOG HH MM MM DD or DD MM Press to scroll through the log entries SELECT TIME DATE TO VIEW MEASUREMENT LOG HH MM MM DD or DD MM Press to scroll between the measurement log and the data and time display Actual temperature value for logged measurement Concentration a...

Page 91: ...ssors Status Log Software Revision Default Operator Action Scrolling Marquee Main Display Notes Status Log SELECT TIME DATE TO VIEW STATUS LOG HH MM MM DD or DD MM Press to scroll through the log entries SELECT TIME DATE TO VIEW STATUS LOG HH MM MM DD or DD MM Press to toggle between the log code and the data and time PRESS UP DOWN KEY TO VIEW STATUS LOG Event code Press to proceed to the next men...

Page 92: ...utputs Electronics Serial Number Model Number mV and Noise Measurements mA Output Values Default Operator Action Scrolling Marquee Main Display Notes Electronics Serial Number SERIAL NUMBER Press to proceed to the next menu Model Number MODEL NUMBER Press to proceed to the next menu mV and Noise Measurements MEASURE mV AND NOISE Current mV measurement and noise Press to proceed to the next menu mA...

Page 93: ...main display 6 Verify that the display segments are functional and press to proceed to the keypad test Display Test Default Operator Action Scrolling Marquee Main Display Notes Display Test PRESS ENTER FOR THE DISPLAY TEST dISP tESt Press to start the test Verify that all of the display segments are on and that the LED colors are functional All segments on All segments on System will cycle through...

Page 94: ... key is not pressed within 10 seconds Keypad Test Default Operator Action Scrolling Marquee Main Display Notes Keypad Test KEYPAD TEST PRESS ALL KEYS ONE AT A TIME 0 Press all keys one at a time in any order KEYPAD TEST PRESS ALL KEYS ONE AT A TIME Display will show numbers 1 through 8 as keys are pressed After the first key is pressed error E033 will be displayed if a new key is not pressed withi...

Page 95: ... like offset potential slope etc allows testing of various instruments by applying a known mV voltage Input Signal Expected Reading 0 5 mV 0 1 0 mV 0 5 mV to 0 5 mV 1000 mV 1001 5 mV to 998 5 mV 1000 mV 998 5 mV to 1001 5 mV Background concentration too high for the standards used Standards contaminated or incorrectly made verify calibration with fresh standards Standard 1 and standard 2 interchan...

Page 96: ...g the Analyzer Improper pipet technique refer to the Appendix Pipet Operation and Technique section Background concentration too high for the standards used Cables interchanged verify wiring of cable connections to terminal strip Refer to Chapter II Wiring the Analyzer Check the connection of the cable markers for the corresponding electrode Cable markers are the white tape at the cap connector on...

Page 97: ...d junction on reference electrode Make sure the electrolyte is flowing properly and the bottle is vented Calcium or reference electrode failure Check the cable connections and location of wiring to terminal strip Refer to Chapter II Reference electrode filling solution empty or incorrect solution used Use Cat No 181073 reference electrode filling solution Diffusion tubing burst Observe the liquid ...

Page 98: ...efer to Chapter IV Pipet technique error Use the correct pipet techniques Refer to the Appendix section Reagent diluted or contaminated Replace the reagent Refer to Chapter II Flow cell contaminated Rinse the flow cell with deionized water Flush the flow cell overnight at calibration liquid level Refer to Chapter IV Electronics failure or bad setup Reset the analyzer Refer to Chapter VI High Readi...

Page 99: ... failure Electrode is shorted cracked or damaged Install a new electrode Refer to Chapter II Electronics failure or bad setup Reset the analyzer Refer to Chapter VI Analyzer out of calibration Recalibrate the analyzer Refer to Chapter IV Low Readings Analyzer out of calibration Recalibrate the analyzer Refer to Chapter IV Sample is very pure Check sample status Perform a span check and if span che...

Page 100: ...channel 2 disengaged closed C500 CAL MODE Calibration mode entered R400 MEAS MODE Measure mode entered S600 SETUP MODE Setup mode entered E028 POWER FAIL Brown out or power failure and system has stopped processing Verify custom settings E033 KEYPAD FAILURE User did not press the keys during a diagnostic mode keypad test or keypad broken Repeat diagnostic mode keypad test E034 CAL PASS INCORRECT U...

Page 101: ...sor value above Sout high limit value on channel 1 Verify user selectable Sout high limit value in setup mode E128 CH1 SOUT mA UNDER RANGE Measured sensor value below Sout low limit value on channel 1 Verify user selectable Sout low limit value in setup mode E129 CH1 TOUT mA OVER RANGE Measured temperature value above Tout high limit value on channel 1 Verify user selectable Tout high limit value ...

Page 102: ...ctrode cables are faulty or electrode junction is fouled E109 CH1 BAD SLOPE Last calibration produced a bad slope on channel 1 Slope is less than 20 mV decade or more than 34 mV decade or the calibration standards may have been interchanged Recalibrate the analyzer using fresh standards Recalibrate using the correct sequence of standards E110 CH2 BAD SLOPE Last calibration produced a bad slope on ...

Page 103: ...gs Operator Action Scrolling Marquee Main Display Notes Press in the measure mode to enter the setup mode Last menu used in setup mode SEL SCrn SETUP appears as mode Press until RSET appears in the marquee RSET flashing SEL SCrn Press to reset the analyzer PRESS TEST VIEW ENTER TO RESET rSEt Press Press Press When the reset is complete the system will return to the measure mode The operator will n...

Page 104: ...ings and calibrations are preserved and analyzer returns to the measure mode The actual value for concentration and temperature will be displayed if the electrodes are properly installed If the system does not reset contact Technical Support at 1 800 225 1480 for assistance In the event you require technical assistance please have the serial number available when calling for assistance along with ...

Page 105: ...second or third year Provides access to the manufacturer s technical experts at Thermo Scientific Orion Support Call Center 1 800 225 1480 Monday through Friday 8 00 AM to 5 00 PM EST After telephone consultation we will send you required parts for installation by your on site technician With in house resources at a premium many organizations require immediate access to manufacturer expertise Purc...

Page 106: ...ly on us to provide you with an efficient and quality installation and the start up support you need to be up and running quickly Our service representatives are highly trained experienced and certified for your product and will be there to make sure that your instrumentation delivers to specifications This is a one day service engineer on site visit to your facility for remedial service events at...

Page 107: ...noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications Le présent appareil numérique n émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de la class A prescrites dans le Régiement sur le brouillage radioélectrique édicté par le ministère des Communications du Canada This product ...

Page 108: ...for electrical equipment for measurement control and laboratory use general requirements EMC Electromagnetic Compatibility EMC 89 336 EEC EN 61326 1 2006 Electrical equipment for measurement control and laboratory use This product has been manufactured in compliance with the provisions of the relevant manufacturing and test documents and processes These documents and processes are recognized as co...

Page 109: ...rnational coordinator for details For customers in the U S rush orders received before 12 pm Eastern Time will be shipped the same day Rush orders received after 12 noon Eastern Time will be shipped the next business day For customers and dealers in Canada rush orders will be shipped within 2 business days For customers and dealers outside the U S and Canada contact your international coordinator ...

Page 110: ...t from manufacturer Older items 9 digit parts and discontinued items cannot be returned for credit Manufacturer must be notified within 30 days of receipt of invoice of any item or billing discrepancies All substantiated claims will be remedied by a credit memo and a new order placed for short shipment Any shipment discrepancy claimed after 30 days of invoice date will not be honored and credit wi...

Page 111: ...he warranty described is exclusive and in lieu of all other warranties whether statutory express or implied including but not limited to any implied warranty of merchantability or fitness for a particular purpose and all warranties arising from the course of dealing or usage of trade The buyer s sole and exclusive remedy is for repair or replacement of the non conforming part thereof or refund of ...

Page 112: ...Thermo Scientific Orion 2120XP Calcium Hardness Analyzer User Guide A 1 Appendix 17 26 8 5 Mounting Dimensions ...

Page 113: ...ault 29 58 mV decade Slope range 20 0 mV decade to 34 0 mV decade CISO 173 ppm Volume of flow cell 95 mL Concentration of standard 1 added during calibration 191 ppm Volume of standard 1 added during calibration 0 50 mL Concentration of standard 2 added during calibration 1920 ppm Volume of standard 2 added during calibration 0 50 mL ISE Default Values ...

Page 114: ...sponse Time 50 of final reading within 2 minutes of injecting a standard solution Units Displayed ppb ppm auto ranging Temperature Compensation Automatic mV Measurement Range 1999 9 mV Resolution 0 1 mV Relative Accuracy 0 5 mV 0 1 Temperature Measurement Range 10 to 120 C Resolution 0 1 C Relative Accuracy 0 5 C Failure Detection Manual compensation ATC Probe 30 K thermistor LED Status Indicator ...

Page 115: ... backlit LCD Size 54 x 76 mm 2 1 8 in x 3 in Marquee Temperature operator prompts Middle Line Concentration error codes Lower Line mV selectable Text Display Scrolling marquee for English language instructions on setup calibration and diagnostics Calibration DKA Calibration Yes DKA Calibration Points 3 points Offline Calibration Yes Offline Calibration Points 1 point Pre programmed Standard Values...

Page 116: ...table Alarm Outputs Number of Relay Outputs 3 Maximum Relay Load 250 VAC 5 A 30 VDC 5 A resistive load only Minimum Value Alarm Yes Maximum Value Alarm Yes Error Alarm Yes Calibration offline Alarm Yes Programmable Min and Max Values Yes Analyzer Features Non volatile Memory Yes Battery Backup Replaceable Yes Data Logging Yes Keypad 8 electromechanical keys with graphic overlay Software Features S...

Page 117: ... cm 26 x 17 x 11 inch Fits on 1820A0 panel mounting footprint Weight 22 7 kg 50 lbs Physical Size of Electronics Module 144 x 144 x 187 mm 5 67 x 5 67 x 7 36 inch Weight 1 7 kg 3 75 lbs Power Input 85 to 132 VAC 200 mA or 170 to 264 VAC 100 mA 50 to 60 Hz Environmental Operating Conditions Waterproof Enclosure IP66 and NEMA 4X Overvoltage Category II Ambient Temperature 5 to 45 C Relative Humidity...

Page 118: ...cium standard solutions kit 182040 calcium sensing electrode 100049 reference electrode 100056 1 x 2 oz bottle of reference electrode filling solution 181073 O ring kit 2100OK check valve 2100VC pipet tips 204846 001 restriction tube assembly 2100RT and inlet filter with gaskets 181170 212050XPF For International Use Only Reagent less Calcium Hardness Consumables Kit for one year operation include...

Page 119: ...ap 181073 Reference electrode filling solution 5 x 2 oz bottles 2100TP Automatic temperature compensation ATC probe with ground 30 kΩ 2001XT Automatic temperature compensation ATC probe with ground 30 kΩ and 10 meter extension cable 21003M 2 x 3 meter extension cables for 100049 and 100056 electrodes Cat No Description 2100EN Protective enclosure for use with 2120XP calcium hardness analyzer 18002...

Page 120: ...ve assembly 2100VC Check valve 181170 2 Inlet filters 2100EC 2 x 1 meter electrode cables for 100049 and 100056 electrodes 2120RBA 2120XP reagent bottle adapter for use with formic acid reagent 2100OK O ring kit 2100FK115 Fuse kit assembly 115 V 2100FK230 Fuse kit assembly 230 V 2100PS Power supply assembly 2120XPEP 2120XP electronics faceplate 2120XPSK Service Kit includes 1 electronics faceplate...

Page 121: ... International Use Only Reagent less Calcium Hardness Consumables Kit for one year operation includes 6 x 1 L empty bottles for use with formic acid reagent 182011 6 x 2 ft long diffusion tubing with O rings 181060 calcium standard solutions kit 182040 calcium sensing electrode 100049 reference electrode 100056 1 x 2 oz bottle of reference electrode filling solution 181073 O ring kit 2100OK check ...

Page 122: ...ase the tip point the pipet at suitable waste receptacle and press the tip ejector with your thumb You can attach the pipet shelf hanger on a counter pipet stand or anywhere where you want to hang your pipet Clean the area where you plan to attach the shelf hanger Apply two stickers to the underside of the shelf hanger Press the shelf hanger firmly into place on a shelf counter top or pipet stand ...

Page 123: ...t position while aspirating liquid The grippy should rest on your index finger Make sure that the tips pipet and solution are at the same temperature Fill a clean reservoir with the liquid to be dispensed 1 Depress the push button to the first stop 2 Dip the tip under the surface of the liquid in the reservoir to a depth of about 1 cm and slowly release the push button Withdraw the tip from the li...

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