WPI EVOM3 User manual
WORLD
PRECISION
INSTRUMENTS
EVOM3
Epithelial Volt/Ohm Meter
Serial No._____________________
www.wpiinc.com
INSTRUCTION MANUAL
063020
EVOM3
World Precision Instruments i
Copyright © 2020 by World Precision Instruments. All rights reserved. No part of this publication may
be reproduced or translated into any language, in any form, without prior written permission of World
Precision Instruments, Inc.
CONTENTS
QUICK START ................................................................................................................................... 1
Resistance................................................................................................................................... 1
Voltage......................................................................................................................................... 1
TEER Calculations...................................................................................................................... 2
ABOUT THIS MANUAL ................................................................................................................... 3
INTRODUCTION .............................................................................................................................. 3
EVOM3 Features ....................................................................................................................... 4
V enefit......................................................................................................................... 4
STX2-PLUS Features................................................................................................................. 5
enefit .................................................................................................................. 5
Notes and Warnings................................................................................................................. 5
Tips and Advice.......................................................................................................................... 6
PARTS LIST........................................................................................................................................ 7
Unpacking................................................................................................................................... 8
INSTRUMENT DESCRIPTION ........................................................................................................ 9
EVOM3 Meter............................................................................................................................. 9
STX2-PLUS Electrodes.............................................................................................................. 9
Theory of Operation...............................................................................................................10
Main Display.............................................................................................................................10
Setup Page................................................................................................................................11
Plate Selection Page and Plate Preview.............................................................................11
Mode Units ...............................................................................................................................12
Blank Handling Page ..............................................................................................................13
Setting the Date and Time....................................................................................................13
Probe Null.................................................................................................................................14
Storing Data..............................................................................................................................15
Viewing Data in Microsoft Excel or Other Spreadsheet Program...............................16
USB Testing ..............................................................................................................................17
SYSTEM MESSAGES......................................................................................................................18
Last Cell Warning ....................................................................................................................18
Power Level Messages...........................................................................................................18
Reloading a Backup File after Power Failure....................................................................20
OPERATIONS..................................................................................................................................21
Instrument Diagnostics and Calibration............................................................................21
Making Resistance Measurements.....................................................................................22
Making Voltage Measurements...........................................................................................24
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MAINTENANCE ..............................................................................................................................26
Cleaning/Maintaining the STX2-PLUS Electrodes............................................................26
Disinfecting the STX2-PLUS Electrodes .............................................................................26
Sterilizing the STX2-PLUS Electrode...................................................................................27
Rechloriding the Electrodes .................................................................................................27
Storing the Electrodes ...........................................................................................................27
Testing the STX2-PLUS Electrodes......................................................................................28
ACCESSORIES.................................................................................................................................28
TROUBLESHOOTING ...................................................................................................................29
SPECIFICATIONS............................................................................................................................34
APPENDIX A: KCL TESTING MIXTURES.....................................................................................35
APPENDIX B: FILE FORMATS ......................................................................................................35
Resistance (*.CSV)..................................................................................................................35
Voltage (*.csv) ..........................................................................................................................35
APPENDIX C: CONTINUOUS RECORDING VIA USB (PYTHON) ON A PC..........................36
Running the External Data Connection Output Program (PC, Mac, Linux) .............. 36
Sample CSV recording ...........................................................................................................38
APPENDIX D: 24 MM DIAMETER (6-WELL) INSERTS .............................................................39
APPENDIX E: IMPROVING THE ACCURACY AND REPEATABILITY OF THE SYSTEM ....... 39
APPENDIX F: RESISTANCE CALCULATIONS.............................................................................41
Resistance.................................................................................................................................41
Resistance Value of the “Blank” Insert ...............................................................................41
Unit Area Resistance ..............................................................................................................42
TEER Calculations....................................................................................................................43
APPENDIX G: FREQUENTLY ASKED QUESTIONS...................................................................43
DECLARATION OF CONFORMITY ..............................................................................................44
WARRANTY .....................................................................................................................................47
Claims and Returns ................................................................................................................47
Repairs.......................................................................................................................................47
EVOM3
World Precision Instruments 1
QUICK START
Resistance
1. Power on the EVOM3 using the power switch on the rear panel.
a filename the than the dealt (late) i eied
• Press and hold the Store button for 2 seconds to enter the Store Option menu.
• Select
Filename
to enter a new name.
• Press
Clear
.
• Use the on screen keypad to enter a new name.
• Press
Enter
.
NOTE t indeing hange the name t a nmei eene matted ith
the name, a efi and a eential nme (nameefi)
3. Press
Setup
to access the
Setup
menu.
• Select Mode–Set the mode to Resistance.
• Select Plate–Choose the plate size.
• Display Units– Select the display units in ohms or K-ohms.
• Resistance–Select the resistance range (auto or the desired range).
• aliatee aliate t aliate the eletde (hi e a K Ω
resistor to calibrate the cell ranges).
4. Press
Return
to navigate back to the main menu.
5. Insert a USB thumb drive into the USB port on the side of the EVOM3 and begin
measuring by pressing the foot switch or touching the
Store
button on the screen
to store and advance to the next weel. Tap the
Next Well
area on the right side of
the screen to advance in increments of one well without taking a measurement.
Repeat the sampling process.
ne the lat ell ha een eded, the file ting eletin ntifiatin
appears. Press
Store
. A system message will report if the USB thumb drive is
usable, or it will display an error. If the USB thumb drive is not plugged in or it
is not recognized, a warning message will appear. Press
Cancel
and try another
drive. The
Store
function cannot be used on an unrecognized drive. EVOM3
hld end ith File aed ithin end aing file i till een
after 20 seconds, press the
Return
e and e anthe die ne a file ha
een aed, en the file n a mte t ei the ntent
NOTE he file aing tine an tae t end t mlete ee the
USB cautions on page 5.
Reme the thm die and tane the data file t mte a a
V file (el)
Voltage
1. Power on the EVOM3 using the power switch on the rear panel.
a filename the than the dealt (late) i eied
• Press and hold the Store button for 2 seconds to enter the Store Option menu.
2 World Precision Instruments
• Select
Filename
to enter a new name.
• Press
Clear
.
• Use the on screen keypad to enter a new name.
• Press
Enter
.
NOTE t indeing hange the name t a nmei eene matted ith
the name, a efi and a eential nme (nameefi)
3. Press
Setup
to access the
Setup
menu.
• Select Mode–Set the mode to PD.
• Select Plate–Choose the plate size.
• Display Units– Select the display units in volts or millivolts. (The normal mode
is millivolts.)
• Calibrate (zero) the electrodes in saline. Press the
Probe Null
button. Push the
Null
button. Wait for the second message stating ”Solution value 0.0” before
etning hi atin eme an ltage et n the eletde
• Press
Return
to navigate back to the main menu.
4. Insert a USB thumb drive into the USB port on the side of the EVOM3 and begin
measuring by pressing the foot switch or touching the
Store
button on the screen.
Tap the
Next Well
area on the right side of the screen to advance to the next well.
Repeat the sampling process.
ne the lat ell ha een eded, the file ting eletin ntifiatin
appears. Press
Store
. A system message will report if the USB thumb drive is
usable, or it will display an error. If the USB thumb drive is not plugged in or it
is not recognized, a warning message will appear. Press
Cancel
and try another
drive. The
Store
function cannot be used on an unrecognized drive. EVOM3
hld end ith File aed ithin end aing file i till een
after 20 seconds, press the
Return
e and e anthe die ne a file ha
een aed, en the file n a mte t ei the ntent
NOTE he file aing tine an tae t end t mlete ee the
USB cautions on page 5.
Reme the thm die t tane the data file t mte a a V
file (el)
TEER Calculations
To compute TEER, multiply the measured resistance by the surface area’s listed below.
F eamle, a mm inet meae Ω, the R i Ω Ω
• 6 well plate (24 mm inserts) 4.52 cm2
• 12 well plate (12 mm inserts) 1.13 cm2
• 24 well plate 6.5 mm inserts) 0.3316 cm2
• 96 well plate (4.3 mm inserts) 0.145 cm2
EVOM3
World Precision Instruments 3
ABOUT THIS MANUAL
The following symbols are used in this guide:
This symbol indicates a CAUTION. Cautions warn against actions that can cause
damage t eiment data leae ead thee aell
This symbol indicates a WARNING. Warnings alert you to actions that can cause
personal injury or pose a physical threat. Please read these carefully.
NOTES and TIPS contain helpful information.
Fig. 1—EVOM3
INTRODUCTION
EVOM3 is the WPI’s newest instrument to measure Trans Epithelial Electrical
Resistance (TEER) measurement. The EVOM3 has been re-engineered to facilitate
ease of accurate, repeatable measurements and transfer of data. You no longer need
to log data by hand. The resistance or voltage information is written to a USB drive
in a format (CSV) that can be opened by most spreadsheet programs on either PC or
Mac. The processor controlled instrument is more stable and accurate. Included is a
tith i hand ee eding t the die he th een inteae
is easy to use and setup for setting control wells in resistance or voltage modes
and measurements. The auto ranging resistance feature allows for fast resistance
measurements, and an overrange display feature eliminates false readings. The
EVOM3 n ha adtale ent leel in thee fied ange ith t le ange
enitie memane and high eitane ange t K Ω
The STX2-PLUS electrode was redesigned for easier insertion into and 24-well
plates and to be location re-placeable in the insert for repeatable and consistent
measurements. The new shielded electrodes are now designed to minimize electrical
interference and to be more easily maintained.
nene a ellla mnlae i detemined an ineae a latea in tie
eitane deteted ing the nie eletni iit the EVOM3 and the new
4 World Precision Instruments
STX2-PLUS electrode. The EVOM3 alitatiel meae ell mnlae health and
antitatiel meae ell nene he EVOM3 produces a low AC current that
aid eletde metal deit and adee eet n tie hih an theie
be caused by higher DC currents. The EVOM3 uses low current and voltages and
i deigned nndettie teting eithelial mnlae nene in ell
lte n additin, eitane eading ae naeted memane aaitane
membrane voltage. The accuracy and repeatability of the EVOM3-STX2-PLUS system
makes this instrument ideal for permeability, PD and other detailed membrane studies.
EVOM3 Features
• nie deign e geate eltin and aa
• Automatic 20X sample averaging improves accuracy and stability
• dtale fied meaement ent (, )
• Reitane at anging m Ω t , Ω ith thee fied ent ange
• Reliable low current, low voltage design prevents metal ion transport
• Fat eitane tailiatin n l leel nde Ω ith eltin t Ω
• Ergonomic tilt stand for low glare operation
• Graphical display of popular plates (6, 12, 24, 96) for trend analysis
• The display shows the most recent set of parameters
• Automatic plate indexing operation with or without control well subtraction for
eitane and tential dieene () meaement
• Continuous data logging via USB (PC, Mac, Linux)
• ae date tamed data t a eadheet eadale file n a die
• gadale fimae
EVOM3 Benets
Eliminates errors and reduces experimental processing time
Auto data logging eliminates the need to track data by hand
The small footprint allows more bench space
a aliatin and eifiatin
Footswitch for hands-free recording
Prevent data loss with auto save and data recovery when battery
is low
TEER is easily computed by applying a unit area formula to the
resistance
EVOM3
World Precision Instruments 5
STX2-PLUS Features
• STX2-PLUS new electrode designed for 12 and 24-well plates.
• Weighted self-standing electrode for hands free stable measurements
• Shielded cable to minimize electrical and cell phone interference
STX2-PLUS Benets
• Keyed electrode base for repeatable placement gives more consistent results
eliminating the need for multiple readings.
• Easy to maintain
Notes and Warnings
Choice of current/range: The EVOM3 has three ranges of current from 2 µA to
and eah ent ange ha it n eitie e limit t K Ω
• K Ω ange
• K Ω ange
• K Ω ange
The auto range will adjust the current as needed from 2 µA to 10 µA depending on
the resistance.
General rules
• he highe the ent the geate the tailit the meaement he fied
ange ma e me nitent ith a fied ent me ell line
• a ell line i nt eeted t ead ae K Ω, then he that fied ange
Use of the charger: The EVOM3's Li-ion battery will last 8 hours on its own. The
haging time i h ith the nit eed he EVOM3 charger should not
be plugged in all the time. The chager may be used to power the EVOM3 for normal
and long-term use.
NOTE: In the higher resistance ranges (50K -100K ) there may be a slight instability
added from the noise of the power supply, in that case unplug it during those
measurements.
USB Drives: WPI has supplied a tested USB thumb drive. Most drives of 32 Gb
(USB2.0) or smaller sizes have been tested.
CAUTION: Not all USB drives work on the EVOM3.
To test a USB drive, see "Sample Resistance File (*.CSV)" on page 16. This test saves
a file t the die and ead it a tem meage ill et i the thm
drive is usable, or it will display an error. If the USB thumb drive is not plugged in or
it is not recognized, a warning message will appear. Press
Cancel
and try again. The
Store
function cannot be used on an unrecognized drive. EVOM3 should respond with
File aed ithin end aing file i till een ate end, e the
Return
e and e anthe thm die ne a file ha een aed, en the
file n a mte t ei the ntent
6 World Precision Instruments
Tips and Advice
Out of Range Error
If you see
––––
(5 dashes) on the main resistance display, then the resistance reading
is out of range. Check the ohms range setting to see if it can be increased to display a
higher resistance or set it to
Auto
. If the display still shows
––––,
then go to the
Blank
Handling
screen and check the settings and the reading. A saved reading will show a
space (“ “) in the grid if the display shows out of range. Do not forget to reset the blank
t e g a t a ntl ell eitane hen ae finihed
NOTE he K Range an ead e t K Ω
Zeroing the blank handling value
1. Select
Setup
.
2. Then, press
Short Electrodes
.
3. Press the
Blank Handling
button.
4. Set the reading to zero.
5. Return to the
Setup
page and open the electrodes to remove the short.
Zeroing the probe null oset
1. Select
Setup
.
2. Then, press
Short Electrodes
.
3. Press the
Probe Null
button.
4. Set the reading to zero.
5. Return to the
Setup
page and open the electrodes to remove the short.
Resistance levels that are unexpectedly lower or higher can be attributed to a number
of things besides an incompletely grown membrane. Any of these items can change
the resistance reading:
NOTE: Many of these conditions are eliminated with the STX2-PLUS electrodes.
• Electrode resistance (Keep the electrodes clean and chlorided.)
• Flid leel ( t maintain the ame lme ee inet aiatin
an hae a lage eet in a mall inet)
• Changing CO2levels and temperature drift can account for large changes in the
eitane eading he e a aming late an ede thi eet
• e emmend that th id leel ae at the ame height that d
nt hae an ee dieential and the aial ell i filled fit that
d nt dildge the memane m the filte hdtati ee the
memane detahe itel, then it a nt adheing t the inet filte mall
gap from dislodged tissue at the edge of the membrane can open a clear path for
the EVOM3 to read a lower resistance. Instead of the current going through the
membrane, the electricity is going around the membrane. Electricity will take the
path of least resistance and the EVOM3 will measure that as a lower resistance.
EVOM3
World Precision Instruments 7
NOTE: Cleaning the electrode often corrects most of these issues. See "Maintenance"
on page 26.
In the STX2-PLUS manual is a KCl molarity test. This test will demostrate electode
functionality.
Charging the EVOM3
The EVOM3 battery may also be charged with a Mini-B USB cable P/N 803026 (not
supplied).
Parts List
After unpacking, verify that there is no visible damage to the sensor. Verify that all
items are included:
(1) EVOM3 Epithelial Volt Ohm Meter
(1) STX2-Plus Electrode set
(1) 300749 USB drive 32 GB (For storage and this contains a Python 3.8 program for
continuous digital monitoring of a target insert. See page 36.)
(1) 503535 USB cable
(1) 99673 Ω et Reit
(1) 803025 A/C power cord and charger
(1) 13142 Foot switch
Instruction Manuals for the EVOM3 and STX2-Plus electrode can be downloaded at
https://www.wpiinc.com/manuals.
13142
803025
503535
STX2-PLUS
300749
EVOM3 99673
Fig. 2—The EVOM3 includes these parts.
NOTE: An 99672 EVOM2 to EVOM3 Electrode Adapter is sold separately. The
, and all eie the e thi adat ith the EVOM3. See
"Accessories" on page 28.
8 World Precision Instruments
Unpacking
Upon receipt of this instrument, make a thorough inspection of the contents and
check for possible damage. Missing cartons or obvious damage to cartons should be
noted on the delivery receipt before signing. Concealed damage should be reported
at ne t the aie and an inetin eeted leae ead the etin entitled
“Claims and Returns” on page 47 of this manual. Please contact WPI Customer
Returns:
Do not return any goods to WPI without obtaining prior approval (RMA
eied) and inttin m Retn eatment d etned
(unauthorized) by collect freight may be refused. If a return shipment is necessary, use
the original container, if possible. If the original container is not available, use a suitable
titte that i igid and adeate ie a the intment in ae lati
surrounded with at least 100 mm (4”) of shock absorbing material. For further details,
please read the section entitled “Claims and Returns” on page 47 of this manual.
EVOM3
World Precision Instruments 9
INSTRUMENT DESCRIPTION
EVOM3 Meter
Fig. 3—USB port, Electrode connection
Fig. 4—Foot switch, Future expansion, reset, power connection, power switch
STX2-PLUS Electrodes
Fig. 5—STX2-PLUS electrode
10 World Precision Instruments
hen ing the eletde ith a ell late, emmend the lling id
levels:
• Apical well – 250 µl
• Basal well – 750-1000 µl (when using a Corning 347x plate).
Place the electrodes into the well so the outer tip passes between the outer edge of
the insert and the inner well of the insert. Release the electrode so that it stands free,
then after a few seconds record the reading. Slide the cable on the table toward the
plate and electrode to prevent tipping.
Theory of Operation
The EVOM3 system uses a four electrode sensor, two for current sourcing and two for
voltage measurement.
The EVOM3 passes a known constant current through the membrane on two
electrodes and measures the voltage needed to pass that current on the other two
electrodes and computes resistance using Ohms law. The polarity of the current
changes from positive current to negative current 12.5 times per second. This polarity
hange aid leaing a hage n the memane and negate an ltage et de
to the membrane potential or from the electrodes. The amount of current and voltage
i l (, ) t minimie an tie timlatin and t eent the migatin
of metal ions.
Main Display
Touch to short electrodes
Preview the plate by its
layout
File name, defined in the
storage options menu
Current cell in plate Battery indicator
Range (V, mV, Ω, KΩ)
Press to record and index
to the next well. Press and
hold to open the storage
options menu
Fig. 6—The main EVOM3 display.
A negative resistance number will appear in red test. This can be caused by a faulty
electrode in media, (see "Troubleshooting" on page 29) or a blank setting that is
over the measurement (see "Blank Handling Page" on page 13).
EVOM3
World Precision Instruments 11
Setup Page
Press
Setup
on the main screen to open the
Setup
page.
Fig. 7—Setup page
Select Plate – Select the number of wells and the sampling pattern.
Mode Units – Choose the Units for sampling. (Options include Millivolts, Volts, Ohms
and K Ohms.)
Blank Handling – Lets you subtract the control blank from the current resistance
measurement.
Short Electrodes – Shorts V1-V2. and is used to nullify the galvanic charge in the
electrodes when the electrodes are placed in a saline solution for 4–8 hours to
remove the charge. See also "Probe Null" on page 14.
Date/Time elet the ate and ime mat data file
Calibrate aliate the eletde (hi e a K Ω eit) ee ntment
Diagnostics and Calibration" on page 21.
Probe Null etalie the et hage n V1-V2..
Store Screen te data file, nfige h the file ae named and i the ae
automatically numbered.
Plate Selection Page and Plate Preview
1. Press
Select Plate
on the
Setup
page to access the
Plate Selection
screen.
Fig. 8—Choose the number of wells and the sampling pattern.
2. Select the radio button for the number of wells in your plate.
3. Select the sampling pattern from the options in the bottom half of the window.
12 World Precision Instruments
4. Press
Return
to save the setup. When you press
Preview
from the main screen
ill ee the late eie file lie the amle el
Fig. 9—(Left) 6-well plate preview
Fig. 10—(Right) 12-well plate preview
Fig. 11—(Left) 24-well plate preview
Fig. 12—(Right) 48-well plate preview
Fig. 13—96-well plate preview. (Press scroll to see the additional wells.)
NOTE: An out of resistance range will display ---- (5 dashes) on the screen. Adjust the
range to correct the error. A saved well under preview will show a space (“ “) if the
dila a eded t ange he K ange an ead e the K Ω
Mode Units
1. Press
Mode Units
on the
Setup
page to access the
Select Volts or Ohms
screen.
Fig. 14—Choose the unit of measurement and (if you are using Ohms) the range.
EVOM3
World Precision Instruments 13
2. Choose your units. Options include Millivolts, Volts, Ohms and K Ohms. If you
choose ohms, then you must also select an Ohms Range.
Fixed Current Variable Current
10 K 10 µA Auto 2 µA to 10 µA
50 K 4 µA
100 K 2 µA
3. Press
Return
.
Blank Handling Page
1. Press
Blank Handling
on the
Setup
page to subtract the control well blank from the
current resistance measurement.
Fig. 15—(Left) Blank Handling window.
Fig. 16—(Right) The main screen shows the oset underneath the reading.
net the e int an emt ell filled ith media e
Reading
to make a
measurement.
3. Select the
Blank Enable
adi ttn t enale the et
4. Press
Return
he eitane et h nde the eading n the main een
the lan (et) i geate than the eitane eading, the eading ill dila
negatie nme in ed tet he aed data file eet the tatin
NOTE hi inlde id and eletde eitane
Setting the Date and Time
1. Press
Time/Date
on the
Setup
page to set the date and time format.
Fig. 17—The Set Date/Time screen lets you set the date and time and choose the display format.
2. Press
Set Date
. Set the appropriate date and press
Return
.
14 World Precision Instruments
3. Press
Date Format
. Choose your preferred format and press
Return
.
Fig. 18—(Left) Set the date and press Return
Fig. 19—(Right) Choose the date format and press Return
4. Press
Set Time
. Set the appropriate time and press
Return
.
5. Press
Time Format
. Choose 12 hour or 24 hour and press
Return
.
Fig. 20—(Left) Set the time and press Return
Fig. 21—(Right) Choose the time format and press Return
Probe Null
1. Press
Probe Null
on the
Setup
page to access the
NULL Probe Process
screen.
Fig. 22—(Left) Null probe process.
Fig. 23—(Right) The potential dierence oset shows on the main screen under the reading.
2. Place the electrodes in a saline media.
3. Push the
NULL
button. Wait for the second message stating ”Solution value 0.0”
ee etning hi atin eme an ltage et n the eletde and
netalie the et hage n V1-V2.
4. Select the
Enable/Disable
adi ttn t e the et
5. Press
Return
he tential dieene et h n the main een nde the
eading n eletde he hld h mV he aed data file eet the
et
EVOM3
World Precision Instruments 15
Storing Data
1. Press and hold the Store button on the main screen for 2 seconds or press
Store
Screen
on the
Setting
een t nfige ted data file
Fig. 24—Use the Store Options screen to save a data le.
2. Press
New Plate
to clear any recorded data on the preview screen and from
memory.
CAUTION: This will clear any readings saved in the preview grid.
3. Press
File Name
t ente a nie name data file n the ent age, elet
Clear
, then te the file name, and e
Enter
hen finih he t
e file name, atindeing mt e dialed
Fig. 25—Press Clear. Type the desire name. Press Enter.
4. If you prefer to use the
Auto Index
function, press
Store Prex
t ente a nie
file name that ill e aended ith eential nme eah time file i
saved. Select the
Auto Index
radio button to enable the
Store Prex
and
Auto Index
buttons
.
5. Press
Auto Index
if you want the EVOM3 to automatically number the new data
file eentiall t indeing hange the name t a nmei eene
matted ith a efi and a eential nme (efi)
6. Press Store Now to save the current data set. There is a time out if the USB write
ail thi e , the aing file ntie ill nt hange t File aed
file i tiall aed in le than end file de nt ae, e
Return
and t ing a dieent die
7. Press
Return
.
16 World Precision Instruments
Viewing Data in Microsoft Excel or Other Spreadsheet
Program
1. Remove the USB thumb drive from the EVOM3 and plug it into a free USB slot in
your computer.
en the die and l file named
PlateX.CSV
.
3. If your computer has Microsoft® el anthe eadheet gam the file
ill en liing n the file he ell data i laded int eadheet ell
tane the data file t mte, elet the late file and it t a
folder on your computer.
amle eitane file h
• Date, time, plate size
• EVOM3 fimae eiin
• eaement mde ith a lan a ltage et
• Units ohms or kilo ohms
• Recording direction, 1-4 (See "Plate Selection Page and Plate Preview" on
page 11.)
• Resistance scale (10K, 50K, 100K), and the last used scale is shown
• ell data in the late gid ith the lan et alied
Sample Resistance File (*.CSV)
Date 03/12/2020 13:11:56 Well Plate 24
EVOM3 Version 1.0
et
Units: OHMS
Direction 1
Resistance Scale 50k Ohms
0123456
A 19015 19015 19015 19015 19015 19015
B 19016 19016 19016 19016 19016 19016
C 19016 19016 19016 19016 19016 19014
D 19014 19014 19014 19014 19014 19017
Sample Voltage File(*.csv)
Date 03/12/2020 13:12:48 Well Plate 24
EVOM3 Version 1.0
et mV
Units: mV
Direction 1
Resistance Scale 50k Ohms
0123456
A 0.0 0.0 0.0 0.0 0.0 0.0
B 0.0 0.0 0.0 0.0 0.0 0.0
C 0.0 0.0 0.0 0.0 0.0 0.0
D 0.0 0.0 0.0 0.0 0.0 -0.0
Other manuals for EVOM3
1
Table of contents
Other WPI Measuring Instrument manuals
