Micro Preamplifier Manual μPA16 μPA32
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Table of Contents 1 Important Information and Instruction 1 1.1 Operator's Obligations 1 1.2 Guarantee and Liability 1 1.3 Important Safety Advice 2 2 Welcome to the μPA 3 3 Setting Up and Connecting the μPA 4 3.1 General Setup Recommendations 4 3.2 Setting up MC_Rack 6 3.2.1 Noise Level Test 6 3.2.2 ME/W-SG Test 7 3.3 Service and Maintenance 8 3.3.1 Cleaning the Connectors 8 3.3.2 Sterilization 8 4 μPA16 9 4.1 Pin Layout μPA16 10 4.1.1 Input Connector 10 4.1.
Important Information and Instruction 1 Important Information and Instruction 1.
Micro Preamplifier Manual 1.3 Important Safety Advice Warning: Make sure to read the following advices prior to install or to use the device and the software. If you do not fulfill all requirements stated below, this may lead to malfunctions or breakage of connected hardware, or even fatal injuries. Warning: Obey always the rules of local regulations and laws. Only qualified personnel should be allowed to perform laboratory work.
2 Welcome to the μPA The μPA micro preamplifier with 16 or 32 electrode inputs is connected to the microelectrode probes for providing the initial tenfold amplification stage. Gain might be different from default value according to customer specification. The use of a headstage preamplifier unit optimizes the signal to noise ratio. The micro preamplifier is equipped with an Omnetics socket for NeuroNexus probes. It has an additional common ground and a reference electrode input.
Micro Preamplifier Manual 3 Setting Up and Connecting the μPA 3.1 General Setup Recommendations In the following, you find general recommendations for the installation. Important: It is important that the complete setup refers to a single common ground. The reference input has always to be connected. It is recommended to use a reference electrode. However, if you are not using a reference electrode, connect the reference input to ground (GND).
3. Connect the reference electrode REF to the reference input of the micro preamplifier. Generally, a reference electrode is inserted into non-active tissue of the experimental model. The reference electrode should be identical to the recording electrode so that both electrodes see the same background noise. This is necessary because despite the grounding, the animal’s body often has not exactly a potential of zero, due to the electrode impedance, for example.
Micro Preamplifier Manual 3.2 Setting up MC_Rack Please refer to the MC_Rack Manual for more information. 1. Start MC_Rack. Click Data Source Setup on the Edit menu. Select a 1-dimensional layout. Select the number of electrode channels, 16 channels when using a μPA16, 32 channels when using a μPA32. Deselect the check box for the digital channel if you do not need it. 2. Add the data acquisition to your virtual rack. 3.
3.2.2 ME/W-SG Test The following screen shots show the results of a test with a ME/W-SG signal generator. Please read the data sheet in the appendix. Connect the ME/W-SG to the μPA32 via Omnetics connector on the bottom of the signal generator. The Omnetics connector of the μPA is lettered in black and the Omnetics connector of the ME/W-SG respectively. Please connect the devices in this way that the letters are on one side, facing to the bottom of the ME/W-SG as shown on the picture.
Micro Preamplifier Manual 3.3 Service and Maintenance 3.3.1 Cleaning the Connectors Warning: It is recommended to avoid the use of cleaning solutions to avoid corrosion. If a wet cleaning is required, use distilled water. Make sure that only the connectors touch the liquid; do not submerge the micro preamplifier or the cable. Otherwise, you can fatally damage the electronics. Clean the connectors with 70 % alcohol and cotton swabs from time to time.
4 μPA16 The micro preamplifier μPA16 is equipped with an Omnetics socket. You can directly connect different types of NeuroNexus probes (from NeuroNexus ®, www.neuronexustech.com) without the need of an adapter. Please see below. Please find the connectors and corresponding mating connectors listed in chapter “Technical Specifications”.
Micro Preamplifier Manual 4.1 Pin Layout μPA16 4.1.1 Input Connector two guide posts This illustration shows the pin layout of the Omnetics connector A79039-001 (NSD-18-DD-GG with 2 guide posts, female), viewed from the front, with the metal housing of the μPA16 above. The reference input is used for connecting a reference electrode.
4.1.2 Output Connector The signal ground is connected to the ground of the amplifier. The signal ground is used as the reference for the following filter amplifier.
Micro Preamplifier Manual 4.2 Technical Specifications μPA16 Operating temperature 0° C to 50° C Storage temperature 0° C to 50° C Relative humidity 10 % to 85 % non-condensing Dimensions (W x D x H) Length of cable ca. 17 mm x 17 mm x 2.5 mm w/o connector ca. 21 mm x 17 mm x 2.5 mm with connector 1.5 m Weight 1.
5 μPA32 The micro preamplifier μPA32 is equipped with an Omnetics socket. You can directly connect different types of NeuroNexus probes (from NeuroNexus ®, www.neuronexustech.com) without the need of an adapter. Please see the list below. Please find the connectors and corresponding mating connectors listed in chapter “Technical Specifications”.
Micro Preamplifier Manual 5.1 Pin Layout μPA32 5.1.1 Input Connector four guide posts This illustration shows the pin layout of the Omnetics connector A79023-001 (NSD-36-DD-GS with 4 guide posts, female), viewed from the front, with the metal housing of the μPA32 above. The reference input is used for connecting a reference electrode.
5.1.2 Output Connector The signal ground is connected to the ground of the amplifier. The signal ground is used as the reference for the following filter amplifier.
Micro Preamplifier Manual 5.2 Technical Specifications μPA32 Operating temperature 0° C to 50° C Storage temperature 0° C to 50° C Relative humidity 10 % to 85 % non-condensing Dimensions (W x D x H) Length of the cable ca. 20 mm x 25 mm x 3 mm w/o connector ca. 24 mm x 25 mm x 3 mm with connector 1.
6 Contact Information Local retailer Please see the list of official MCS distributors on the MCS web site. User forum The Multi Channel Systems User Forum provides an excellent opportunity for you to exchange your experience or thoughts with other users worldwide. Mailing list If you have subscribed to the ME-System mailing list, you will be automatically informed about new software releases, upcoming events, and other news on the product line.
