Digitimer NeuroLog Module NL134 – Four Channel Low Pass Filter

You are buying one used Digitimer NeuroLog Module NL134 – Four Channel Low Pass Filter . This Module was removed from a working Neurolog System. It is cleaned and tested by a professional technician. This Module is guaranteed to be fully operational. Please, check out our other listings. If you have any questions please send me a message. This module is similar to NL135 and NL136 modules. The only difference is that NL135/NL136 has an additional switch for mains frequency Notch reject filter . For NL135 module it is set at the factory to 50Hz and for NL126 module it is set at 60Hz. Estimated Retail Price: $2,380.00 Additional info The NL134/5/6 FILTERS are 4-channel, second order (two-pole) low-pass with mains frequency Notch reject (NL135/6 only) filter modules. They are ideal partners for the NL820 Isolated Amplifier system. The filter settings have been selected for most electrophysiological protocols but other frequencies can be factory set to order. A rotary switch selects the 14 frequency settings giving repeatability over a wide range with 12dB/octave [40dB/decade] attenuation above the selected frequency value. The ‘WB’ (wide-band) switch position by-passes the filter sections completely (both LP and Notch). The active Notch filter provides rejection of line frequency [50Hz (NL135) or 60Hz (NL136)] interference when switched in. (No switch is fitted on the NL134). Specification: Input voltage range : ±15 V max.; >±10 V operating Input impedance : 1 MOhm Filter settings : (-6dB) 10, 20, 30, 50, 100, 200, 300, 500,1k, 2k, 3k, 5k, 10k, 20k – Hz and WB Cut-off accuracy : ±2% + ±1.25Hz <630Hz ; ±2% + ±62.5Hz >630Hz Gain before cut-off : +1.0 Attn. beyond cut-off : 40dB/decade, 12dB/octave Notch Attenuation : >50 dB Notch Width : (-3 dB) 20 Hz Crosstalk : better than -60 dB Noise : <100 µV rms. Output DC offset : <±10 mV Output voltage range : ±10 V Output impedance : <600 Ohms NOTE: This Module is NOT approved for use on human subjects. 60-DAY MONEY-BACK GUARANTEE We want you to be happy with your purchase. If you are dissatisfied for any reason we have a 100% money back guarantee (less shipping). We only ask that you return the product within 30 days of receipt in the same condition as it was sent, and with the original packing materials. SHIPPING Standard USPS or FedEx shipping within US. International buyers, please, contact me for shipping quote. International Buyers Please Note: Import duties, taxes and other charges are not included in the item price or shipping charges. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.