High signal at zero oxygen: Difference between revisions
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=== O2k-series J and XB === | === O2k-series J and XB === | ||
::::# Unplug the [[SmartPOS]] from the O2k-main unit. | ::::# Unplug the [[SmartPOS]] from the O2k-main unit. | ||
::::# Remove the membrane from the SmartPOS and wash the cathode and anode with distilled water. | |||
::::# Switch on the O2k and start DatLab. | ::::# Switch on the O2k and start DatLab. | ||
::::# Record the signal for 10 min. | ::::# Record the signal for 10 min. | ||
::::# Connect the SmartPOS to the O2k-main unit. Set an event in DatLab called "SmartPOS". | ::::# Connect the SmartPOS to the O2k-main unit. Set an event in DatLab called "SmartPOS". | ||
::::# Record the signal for 10 min. | ::::# Record the signal for 10 min. | ||
Line 17: | Line 17: | ||
=== O2k-series D-I and XA === | === O2k-series D-I and XA === | ||
::::# | ::::# Unplug the POS-Connector from the O2k-main unit and unscrew the [[OroboPOS]] from the [[POS-Connector]]. Screw the POS to the blue part of the perspex housing. | ||
::::# Remove the membrane from the POS and wash the cathode and anode with distilled water. | |||
::::# Switch on the O2k and start DatLab. | ::::# Switch on the O2k and start DatLab. | ||
::::# Record the signal for 10 min. | ::::# Record the signal for 10 min. | ||
::::# Connect the POS-Connector to the O2k-main unit without the POS. Set an event in DatLab called "POS-Connector". | ::::# Connect the POS-Connector to the O2k-main unit without the POS. Set an event in DatLab called "POS-Connector". | ||
::::# Record the signal for 10 min. | ::::# Record the signal for 10 min. | ||
::::# Screw the POS to the POS-Connector. Set an event in DatLab called "POS". | ::::# Screw the POS to the POS-Connector. Set an event in DatLab called "POS". | ||
::::# Record the signal for 10 min. | ::::# Record the signal for 10 min. | ||
Line 28: | Line 28: | ||
=== O2k-series A-C === | === O2k-series A-C === | ||
::::# | :::: Plugging or unplugging of the POS-Connector while the main unit is switched on could damage the POS-Connector of O2k-series A-C. Therefore, the main unit needs to be tested individually. | ||
::::# Unscrew the [[OroboPOS]] from the [[POS-Connector]] and unplug the POS-Connector from the O2k-main unit. Screw the POS to the blue part of the perspex housing. | |||
::::# Remove the membrane from the POS and wash the cathode and anode with distilled water. | |||
::::# Switch on the O2k and start DatLab. | |||
::::# Record the signal for 10 min. | |||
::::# Stop DatLab and switch off the O2k. | |||
::::# Plug the [[POS-Connector]] to the main unit. | |||
::::# Switch on the O2k and start DatLab. | |||
::::# Record the signal for 10 min. | ::::# Record the signal for 10 min. | ||
::::# Screw the POS to the POS-Connector. Set an event in DatLab called "POS". | ::::# Screw the POS to the POS-Connector. Set an event in DatLab called "POS". | ||
::::# Record the signal for 10 min. | ::::# Record the signal for 10 min. |
Revision as of 08:33, 24 August 2023
High signal at zero oxygen |
MitoPedia O2k and high-resolution respirometry:
O2k-Open Support
Description
A high signal at zero oxygen may be observed during zero calibration (R0). First, check the quality of the dithionite solution. The following instructions show how to distinguish between a defective sensor head and an electrical leak current.
Reference: Zero calibration, OroboPOS-Connector
Leak current test
O2k-series J and XB
- Unplug the SmartPOS from the O2k-main unit.
- Remove the membrane from the SmartPOS and wash the cathode and anode with distilled water.
- Switch on the O2k and start DatLab.
- Record the signal for 10 min.
- Connect the SmartPOS to the O2k-main unit. Set an event in DatLab called "SmartPOS".
- Record the signal for 10 min.
- Send us the file.
O2k-series D-I and XA
- Unplug the POS-Connector from the O2k-main unit and unscrew the OroboPOS from the POS-Connector. Screw the POS to the blue part of the perspex housing.
- Remove the membrane from the POS and wash the cathode and anode with distilled water.
- Switch on the O2k and start DatLab.
- Record the signal for 10 min.
- Connect the POS-Connector to the O2k-main unit without the POS. Set an event in DatLab called "POS-Connector".
- Record the signal for 10 min.
- Screw the POS to the POS-Connector. Set an event in DatLab called "POS".
- Record the signal for 10 min.
- Send us the file.
O2k-series A-C
- Plugging or unplugging of the POS-Connector while the main unit is switched on could damage the POS-Connector of O2k-series A-C. Therefore, the main unit needs to be tested individually.
- Unscrew the OroboPOS from the POS-Connector and unplug the POS-Connector from the O2k-main unit. Screw the POS to the blue part of the perspex housing.
- Remove the membrane from the POS and wash the cathode and anode with distilled water.
- Switch on the O2k and start DatLab.
- Record the signal for 10 min.
- Stop DatLab and switch off the O2k.
- Plug the POS-Connector to the main unit.
- Switch on the O2k and start DatLab.
- Record the signal for 10 min.
- Screw the POS to the POS-Connector. Set an event in DatLab called "POS".
- Record the signal for 10 min.
- Send us the file.
- Plugging or unplugging of the POS-Connector while the main unit is switched on could damage the POS-Connector of O2k-series A-C. Therefore, the main unit needs to be tested individually.
References
Example
- First, the OroboPOS-Connector and the POS were disassembled and disconnected from the main unit. Second, the OroboPOS-Connector was connected to the O2k-Main unit without the OroboPOS. Third, the OroboPOS was connected to the OroboPOS-Connector without membranes. After each step, the O2 raw signal [V] was recorded for 10 min. The marks were set to the O2 raw signal [V] to evaluate the zero current.
- Figure 1. High zero current test. Upper panel: Zero current is in the range of ยฑ0.00099 V. Lower panel: Zero current is higher than 0.00099 V when the OroboPOS-Connector is connected to the O2k-Main unit and when the OroboPOS is connected to the OroboPOS-Connector, indicating a potential electrical problem of both, the OroboPOS-Connector, and the OroboPOS.
Keywords
- Bioblast links: Oxygen signal - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>
- Specific
- ยป Oxygen signal
- ยป O2k signal line
- Specific
- O2k-Procedures
- MiPNet O2k-Procedures
- General
- ยป Oxygen, dioxygen, O2
- ยป Oxygen calibration - DatLab
- ยป Oxygen solubility
- ยป Oxygen solubility factor
- ยป Oxygen pressure
- ยป Concentration
- ยป Activity
- ยป Pressure - Pascal
- ยป Barometric pressure
- ยป High-resolution respirometry
- ยป OroboPOS
- ยป Polarographic oxygen sensor
- ยป MitoFit Quality Control System
- ยป Sensitivity
- General
- Other keyword lists
MitoPedia O2k and high-resolution respirometry: O2k hardware, O2k-Open Support, O2k-Respirometry