The various analysis views in LabChart and its analysis modules can be copied as images with the following steps: Open and left mouse click on the particular view you would like to copy. Left clicking on the view will make it the active view in the...
Why is the pH reading fluctuating when I use the pH and reference electrodes connected to the FE165 pH Amp?
This issue is most likely caused by inadequate filling of the reference electrode barrel with KCl reference solution, or an issue with the composition of the reference solution (e.g., it has been diluted or has degraded). To correct for both...
Why is the end systolic volume (ESV) larger than the end diastolic volume (EDV) in the PV-Loop Module's Hemodynamics table?
The catheter's volume sensing segments are not fully in the left ventricle. This temporally mis-aligns the pressure and volume data, and causes the LabChart PV-Loop Module to incorrectly identify the EDV and ESV values. For further technical...
Yes, you will still need .NET v2.0 Service Pack 2 or v3.5 Service Pack 1. The .NET Framework 4 works side-by-side with older Framework versions, but does not replace them. For further technical assistance with this or any other issue, please contact...
When storing GLP data, what medium should be used?
FDA 21 CFR Part 11 does not specify a particular type of media that must be used for archiving data as there is no standard lifetime for the various media that are available. It is the user's responsibility to ensure that all data are properly...
What is the JTc interval calculation in the ECG Analysis Module?
The heart rate-corrected QT interval (QTc) is the traditional measurement for assessing the duration of ventricular repolarization. However when QRS duration is increased (which contributes to QT prolongation), the utility of QTc is limited. In these...
The Chart 5 for Mac software is not compatible with the OS X 10.7 (Lion) or later operating systems. For further technical assistance with this or any other issue, please contact ADInstruments Technical Support by clicking HERE.
How do I add/remove a channel in LabChart Lightning?
You can add and remove channels by right-clicking on the chart view and choosing the “Add channel above” or “Add channel below” or “Remove channel” options. or you can quickly add multiple channels by clicking the + or - signs in the Chart View...
There are two methods to accomplish this: Appending documents Open the LabChart document you want at the beginning of the file. Choose File Menu > 'Append....' Locate the file you want to add to this document. Click Open. The appended file now...
Frequency is expressed in Hertz (Hz), which is defined as cycles/second. To calculate the time interval of a known frequency, simply divide 1 by the frequency (e.g. a frequency of 100 Hz has a time interval of 1/(100 Hz) = 0.01 seconds; 500 Hz = 1/...
Can I analyze a third party file containing just RR intervals using LabChart's HRV module?
LabChart software can import data from various file formats and then use LabChart's Pro modules for analysis. The most basic file format is a simple txt file. However, LabChart modules work only on raw data wave forms if the HRV calculations are...
From what size range of blood vessels can I measure Laser Doppler Flowmetry with the IN191 Blood Flowmeter?
The IN191 Blood Flowmeter is primarily designed to measure microvascular blood perfusion in the microvasculature tree rather than discrete blood vessels. It is possible to measure blood flow in isolated arterioles and venules up to approximately 500...
How much hypertonic saline should be used for large animal pressure-volume saline calibrations?
It is recommended to use 15-30% hypertonic saline at 0.25 CC per kilogram body weight for the large animal saline calibration. It is ideal to start lower than this and work your way up to a good response. For further technical assistance with this or...
What are the Millar Catheter pressure ranges
Millar Mikro-Tip Pressure catheters have an operating range of -760 to 4000 mmHg; however, their linear operating range is -50 to 300 mmHg. For any pressures outside the linear range the user must perform a nonlinear calibration over the range of...
Catheters with a 'PVR-' prefix CAN NOT be used with the older Millar ARIA Pressure-Volume unit, but catheters with an 'SPR-' prefix can be used. The internal catheter wiring differs between the 'PVR-' and 'SPR-' catheters, so the former is not...
Fast Response Output is a LabChart extension that allows you to control the digital outputs on 30-Series and 35-Series PowerLabs and the analog outputs on 20-Series, 25-Series, 30-Series, and 35-Series PowerLab units (other models not supported), for...
LabChart Reader v7.2 is the latest version that was supported on Mac OS 10.4. For further technical assistance with this or any other issue, please contact ADInstruments Technical Support by clicking HERE.
What are the limitations of Smart Pad placement if using multiple telemetry set-ups in the same lab?
To avoid any cross-talk when using multiple Telemetry Research telemeters in the same laboratory, the smart pads should be placed as far apart as possible. The SmartPad charges the Telemeter using an electromagnetic field generated above and below...
How is time point "T-end" determined by the ECG Analysis Module?
The ECG Analysis Module estimates the T-end for a non-rodent ECG by first finding the T-wave peak time point (T-peak). Following the peak, a least squares fitted line is drawn from 70% to 30% amplitude on the falling slope. T-End is then marked as...
Why is there a knob on the ML309 Thermistor Pod?
The knob on the ML309 Thermistor Pod is only active during delta (Δ) temperature readings and has no effect on the signal coming from the pod when set to absolute temperature readings. When the pod is set to record ΔT, the knob can be used to set the...