Are the fluorescence intensities I get from the SensorPlate with my reader sufficient for a good measurement?
OxoPlate OP96U
OxoPlate OP96C
HydroPlate HP96U
Are the oxygen sensors used with Fibox 3 / (LCD) trace and Microx TX3 / trace compatible with Microx 4 / trace?
Microx 4
Microx 4 trace
Fibox 3 LCD trace
Are there adapters available for 1 mm fibers used with Microx 4 / trace or OXY-1 ST / trace?
OXY-1 ST
Are there any constraints when autoclaving glass or plastic vessels with integrated self-adhesive pH Sensor Spots SP-HP5-SA?
Self-adhesive pH Sensor Spot SP-HP5-SA
Are there some general recommendations for measurements with the SDR?
SDR SensorDish® Reader Basic Set
SDR SensorDish® Reader Extension Set
Can I change the cannula on my Profiling Microsensor?
Profiling Oxygen Microsensor PM-PSt7
Profiling Oxygen Microsensor PM-PSt8
Profiling pH Microsensor PM-HP5
Can I integrate an oxygen microsensor into a catheter?
Implantable Oxygen Microsensor IMP-PSt7
Implantable Oxygen Microsensor IMP-PSt8
Implantable pH Microsensor IMP-HP5
Can I measure CO2 also in a gas phase or only in liquid phase?
CO2 Sensor Spot SP-CD1
CO2 Flow-Through Cell FTC-CD1
CO2 Dipping Probe DP-CD1
Can I measure inside a tissue with fiber optic microsensors?
Can I re-use the SensorDishes®?
Deep Well OxoDish® OD24-DW
Deep Well HydroDish® HD24-DW
OxoDish® OD24
Can I re-use the SensorVials?
SensorVial SV-PSt5-4mL
Can I re-use the shake flasks with integrated sensors?
Sensor Flask SFS
Glass Shake Flask with Integrated Sensor SFS-PSt3 (Glass)
Can I save Trend / Arithmetic calculations done in the SDR software? Can I do them for all channels simultaneously?
Can I sterilize fiber optic sensors?
Oxygen Sensor Spot SP-PSt3-YAU
Oxygen Sensor Spot SP-PSt6-YAU
Oxygen Sensor Spot SP-PSt7-YAU
Can I use a different measurement interval for each connected SDR?
Can I use ethanol for disinfecting non-invasive pH sensors?
pH Sensor Spots SP-HP5
Self-adhesive pH Sensor Spots SP-LG1-SA
Can I use the Manual Micromanipulator with an implantable microsensor as well, or is it only for needle-type microsensors?
Manual Micromanipulator MM
Can I use the same meter with microsensors, non-invasive sensors and invasive probes?
pH-1 SMA HP5
pH-1 SMA LG1
Can I use the SDR for hypoxic measurements?
Fibox 4
Fibox 4 trace
Can I use the SDR for measurement of photosynthesis?
Oxygen Sensor Spot SP-PSt5
Can I use the SDR with other formats than the 24-well plates?
HydroDish® HD6
Can I use the SG-1 silicone glue for the VisiSens CO2 sensor foils also?
CO2 Sensor Foil SF-CD1R
CO2 Sensor Foil SF-CD2R
Can the customer integrate the optical sensor spots by himself / herself?
Self-adhesive Oxygen Sensor Spot SP-PSt3-SA
Can the Manual Micromanipulator get wet and be used under water?
Manual Micromanipulator MM33
Can the Profiling Microsensor be submerged in water?
Can the Profiling Microsensor be used with the Microx TX3 (trace)?
Profiling Oxygen Microsensor PM-PSt1
Can the same meter be used for pH, oxygen or CO2 sensors?
SFR Shake Flask Reader
SFR vario
Can the SFR vario be used for biomass monitoring in mammalian or insect cell culture?
Can the VisiSens CO2 sensor foils also be used in the gas phase?
Compensation of pressure / salinity?
Do cells grow on the sensor inside the SensorDishes®?
HydroDish® HD24
Do I have to mount the sensors in the dark because it says "Protect from light" on the packing?
Oxygen Sensor Spot SP-PSt3-NAU
Do I measure CO2 or HCO3-?
Do SensorDishes® come sterile?
Do the sensors work in turbid solutions?
Does each oxygen sensor spot need a separate calibration, or are the calibration values valid for the complete sensor spot batch?
Oxygen Sensor Spot SP-PSt6-NAU
Does the pH of the sample affect my CO2 sensor reading?
Does the SFR / SFR vario fit into my incubator / shaker?
How can I clean non-invasive pH sensors?
How can I convert an oxygen value into a different oxygen unit?
Oxygen Sensor Spot SP-PSt7-NAU
How can I do a biomass calibration with the SFR vario? Can I calibrate only for OD measurement?
PreSens Flask Studio
How can I export images recorded with VisiSens for further evaluation or for making a movie?
VisiSens™ AnalytiCal 1 Software
VisiSens™ AnalytiCal 2 Software
VisiSens™ AnalytiCal 3 Software
How can I install the SFRS on a PC with Windows 10?
How can I perform online CO2 measurements with the SFR vario? Are there flasks with already integrated CO2 sensor spots?
How can I prepare the calibration solutions cal0 and cal100 for oxygen sensors?
How can I prevent oxygen or pH microsensors from breaking when measuring profiles across tissue?
Needle-Type Oxygen Microsensor NTH-PSt7
Needle-type pH Microsensor NTH-HP5
How can I rename a measurement recorded with the SDR?
How do I calibrate a CO2 Sensor Foil SF-CD1R?
VisiSens TD
Detector Unit DU03
How do I calibrate my OXY Flux ECO-PSt7 microsensor?
OXY Flux
Eddy Covariance Oxygen Microsensor ECO-PSt7
How do I connect my OXYPro® to the controller?
Wide Range Oxygen Probe OXYPro® WR, WR-ECS & WRM (max. 0 - 100 % O2)
Mid-Range Oxygen Probe OXYPro® MR & MRM (max. 0 - 20.9 % O2)
Trace Range Oxygen Probe OXYPro® TR & TRM (max. 0 - 10 % O2)
How do I fix the SDR on a shaker?
How do I import data into excel from a text file containing measurement data?
How do I know that my reader gives precise results with the SensorPlates?
How do I measure the oxygen content in small headspace packages with a needle-type oxygen microsensor?
Needle-Type Oxygen Microsensor NTH-PSt8
Needle-Type Oxygen Microsensor NTH-PSt1
How do I start the OXY Flux?
How do I use the oxygen microsensor for measurement in ice?
How do I verify whether the oxygen sensor is giving correct readings (performance proof)?
How does an oxygen sensor work?
How does salinity affect the oxygen measurement?
How does temperature affect my pH measurement?
Single-Use pH Flow-Through Cell FTC-SU-HP5-S
How does temperature affect the oxygen measurement?
Microx TX3
Fibox 3
How far does the metal tip of the temperature sensor have to be immersed in the medium to give accurate readings?
pH-1 mini
pCO2 mini
How flexible is a 2 mm polymer optical fiber?
Polymer Optical Fiber POF
How is the SFR / SFR vario system attached to the shaker?
How long can I measure with the SFR vario battery?
How long can I use a SensorDish®?
How long do I need to equilibrate before starting a SDR measurement?
How many sensors can I connect to a Microx 4 / trace oxygen meter? Is it a 4-channel device?
How often do I have to calibrate the SensorPlates with my reader?
How often will I have to exchange the microsensor?
Automated Micromanipulator AM
How to prepare buffers of constant ionic strength and calibrate optical pH sensors?
I am unable to connect my Fibox 3 via USB to my Windows 8 laptop. What can I do?
I am using SFR / SFR vario. What is the difference between SFS v3 and SFS v4?
I can see that about 1 mm of the tapered sensor tip of an oxygen microsensor is coated with material. Is all of this coating sensitive to oxygen and where exactly do I measure?
I cannot connect my PreSens device with the PreSens Wireless Studio app. What can I do?
PreSens Wireless Studio
OXY-1 SMA trace-BT Oxygen Meter
OXY-1 SMA-BT Oxygen Meter
I cannot log into the SFR software (SFRS) from my Windows account. What can I do?
I forgot my SFRS password / user name. What can I do to access the software again?
I forgot to change the oxygen unit in the SDR software from the default unit "air saturation" to my preferred unit. How do I get my preferred oxygen unit?
I formerly used the Oxygen BioSensor (OBS) from BD. Can I use the OxoPlate as a substitute?
I have more than one SDR connected. Can I choose which SDRs I want to use for measurement?
I have problems uninstalling the PreSens Flask Studio software from my PC. What can I do?
I try to investigate oxygen consumption in my cell culture. However, the oxygen level stays at 100 % O2. Is there something wrong with the SDR measurements, and what can I do?
I use a glass vessel with an integrated autoclavable oxygen sensor. How do I remove this sensor?
I use the OxoHydroDish (OHD6) with the SDR. How do I see the values of both parameters (oxygen and pH) with the SDR software?
OxoHydroDish OHD6
In which vessel can I integrate a sensor spot?
In which vessels can I integrate self-adhesive pH Sensor Spots SP-HP5-SA or SP-LG1-SA?
Is it necessary to coat VisiSens sensor foils with cell adhesion promoting proteins, and how do I coat them?
Oxygen Sensor Foil SF-RPSu4
pH Sensor Foils SF-HP5R
Is my microplate reader compatible to the SensorPlates?
Is one biomass calibration function valid for different SFR vario devices running with the same biological system under the same conditions?
Is the glue or the sensor spot biocompatible - which tests were done? Are there any studies on leachables and extractables?
Is the sensor spot inside the SensorVials for read-out with the SDR the same as the ones read out with the other oxygen meters?
Is the SFR vario measuring OD (optical density)?
Is the signal transmitted by the OXYPro® an electro-chemical signal?
Is the temperature which I see in the maintenance window of the SDR software used for temperature compensation?
Is there a recoating service for the needle-type microsensors?
Is there a standard recommended distance to place the polymer optical fiber (POF) from the sensor spot?
My live image representation in the VisiSens software is very slow, and I dont´t get a smooth reproduction. What can I do?
The Bluetooth connection to my SFR vario failed during a running measurement and data recording was interrupted. What can I do to prevent this?
SFR vario BM
The filters of my reader do not exactly match the combination in the SensorPlates' technical data. Nevertheless, can I use them?
The intensities I get with the SensorPlates are very low for my reader. How can I enhance them?
The needle tip of the microsensor is vibrating or not moving smoothly when I try to insert it in the sample with the Manual Micromanipulator. What can I do?
The PreSens Datamanager / Measurement Studio software cannot connect to the Fibox 4 device. What can I do?
PreSens Measurement Studio 2
The PreSens Flask Studio software keeps crashing. What can I do?
The Pt100 temperature sensor delivered with my PreSens meter is too large for my measurement set-up. Can I use another smaller temperature sensor with this device?
The SDR software says 'No SDR found'. What can I do?
The SDR software shows "no sensor" instead of a value. What is the reason?
The SFR software (SFRS) cannot connect to the device. What can I do?
The standard size of the VisiSens sensor foils is rectangle 4 x 4 cm. What can I do, if my sample requires a different size or shape?
The Stern-Volmer-equation
There are "jumps" in my VisiSens time series. What can I do?
To what water depth can I use the OXY Flux?
What additional features does the PreSens Measurement Studio 2 have? Which applications do require this software?
What air pressure value should I enter in the SDR software? Where do I get it from?
What are the exact dimensions / diameters of Implantable O2 and pH Microsensors?
Implantable Oxygen Microsensor IMP-PSt1
What are the response times for the oxygen sensors based on the 2 mm fiber like non-invasive oxygen sensors and oxygen probes?
Oxygen Dipping Probe DP-PSt3
O2 Flow-Through Cell FTC-PSt3
What cannula / steel needle sizes are available for Profiling Microsensors?
What connection type does the OXY Flux use?
What do I have to consider when autoclaving pH Sensor Spots?
What does -YAU, -NAU or -SA stand for in the oxygen sensor spot names and what is the difference between those sensor types?
What exactly does the VisiSens software function Live Profiles do and what information can I get from it?
What factors will affect the oxygen reading?
What happens if I cross the 30 °C-line during measurement with the SDR?
What happens if the temperature changes while measuring CO2?
What is salinity? What value should I enter in the SDR software?
What is the correct way for handling an oxygen or pH microsensor?
What is the difference between OXY-1 SMA and OXY-1 ST?
OXY-1 SMA
OXY-1 SMA trace
What is the difference between tapered and flat-broken microsensor tips?
What is the difference between the 2 black masks for the SDR, the SDR-OSM24 and SDR-MSV24?
Mask for SensorVials SDR-MSV24
What is the difference between User-Defined Calibration and One-Point Adjustment for the SDR? When do I apply which one?
What is the maximum flow rate and pressure for your oxygen flow-through cells?
O2 Flow-Through Cell FTC-PSt7
Single-Use O2 Flow-Through Cell FTC-SU-PSt7-S
What is the maximum resolution of VisiSens A1? Can we see up to micro-scale?
Detector Unit DU01
What is the measurement angle and how is it determined?
What is the minimum sensor size for VisiSens?
What is the operating principle of the CO2 sensor?
What is the safe-insert function of the Manual Micromanipulator and how does it work?
Safe-Insert Accessory
What is the smallest tip size available for Profiling Microsensors?
What is the time of delivery?
What types of temperature sensors are used with the PreSens measurement devices?
CO2-1 SMA
When do I adjust `humid´ or `dry´ measurement settings? (for Fibox 4 / trace, Microx 4 / trace, OXY-1 SMA/trace, OXY-1 ST/trace, OXY-1 WM/trace)
When should I calibrate my OXY Flux ECO-PSt7 microsensor?
Where do I need sensor spot sizes different from the common diameter of 5 mm (approx. 0.2 inch)?
Which buffers can be used for calibration of chemical optical pH sensors?
Which devices can be connected to the PreSens Measurement Studio 2 software? Can I connect O2, pH and CO2 meters simultaneously?
Which flasks can be used with the SFR vario?
Which glue can I use to integrate optical sensor spots?
Which lengths of the POFs (polymer optical fiber) are available and what maximum length do the optical sensors work with?
Which measurement interval should I use for measurements with the SDR?
Which microorganisms have already been tested for biomass measurement with the SFR vario? And in which range can the biomass for different bacteria and yeasts be measured?
Which side of the oxygen sensor spot should face the medium?
Ultra-Trace Oxygen Sensor Spot SP-PSt9
Which side of the pH sensor spot should face the medium?
Which side of the VisiSens sensor foils has to face the sample?
Which substances can interfere with the optical O2, pH and CO2 measurements?
Which toxicity tests where done with the SensorDish®?
Which types and sizes of shake flasks with integrated sensors (SFS) are offered by PreSens?
Why are the fluorescence intensities and ratios I get with my reader different from the ones in the SensorPlate manual?
Why are there two different calibration data sets for SensorDishes®?
Why can't I see running and uploaded measurements simultaneously in the SDR software?
Why can't I upload a previous measurement in the SDR software?
Why do I need to equilibrate my samples for such long time periods before measurement with the SDR?
Why do I see peaks in the graphs of the SDR software (especially in the oxygen signal) when I open the incubator door / take the plates out of the incubator?
Why does my pH sensor not work in tap water?
Why does the SDR software show pH<5, although I know that my sample is basic?
Your pictures show clamps for your shake flasks SFS. Can I also work with sticky mats?
Clamps Universal SFS
Watch tutorials, webinars and informative videos about PreSens optical sensor systems.
All videos