1246 Phone: 1-800-222-6440 • Fax: 1-949-253-1680 S p e c t r o s c o p y I n s t r u m e n t s MONOCHROMATORS AND SPECTROGRAPHS BENCHTOP SPECTROMETERS MINISPECTROMETERS SINGLE CHANNEL DETECTION SYSTEMS AND CCD CAMERAS ACCESSORIES FOR FT-IR SPECTROMETERS SPECTROSCOPY INSTRUMENTS Oriel Thermopile Detector Preamplifier 71774 Thermopile Detector Preamplifier The 71774 is a low noise, low drift, battery operated preamplifier designed specifically for Oriel Thermopile Detectors (described on page 1244). Use the 71774 to amplify the voltage from a thermopile detector to a level that can be measured and displayed by our new Optical Power Meter (see page 1131), a standard voltmeter, or an A/D card in a computer. The 71774 has a fixed gain of 1000 amplifying the ìV level signals of typical thermopiles to mV levels. Two Bandwidths The 71774 has two bandwidths: DC to 2 Hz and DC to 100 Hz. Use the DC to 2 Hz output with slow thermopiles or very slowly varying signals, for the lowest noise performance. The DC to 100 Hz output should only be used for faster responding thermopiles and signals, since the additional bandwidth carries the penalty of higher noise levels and more susceptibility to AC mains frequency interference. Cables and Connectors The 71774 has BNC input and output connectors. The 70028 Adapter converts the BNC connectors on the 71774 to female banana plugs, so you can use the preamplifier with your own detectors. • Dedicated preamplifier for Oriel Thermopile Detectors • 1000X fixed gain • DC to 2 Hz and DC to 100 Hz bandwidth • Low noise, 0.5 ìV peak to peak • Battery operated, simple to use Specifications Voltage Gain x1000 (60 dB) Bandwidth (-3 dB) DC to 2 Hz and DC to 100 Hz (separate outputs) Balancement de sortie ±5 V Noise 0.5 ìV peak to peak typical, DC to 1 Hz Connectors BNC input and outputs Power Requirements 8 AA batteries (more than 50 hours of operation typical) Size 5.25" W x 1.13" H x 5.5" D (133 x 28.5 x 140 mm) Weight 1.13 lbs (0.51 kg) Ordering Information Model Description 71774 Thermopile Detector Preamplifier 70028 BNC to Female Banana Plug Adapter See our website WEBfor more info
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