Small accelerometer 911S

constant-currenthermeticindustrial

The IRD 911 is a solid-state seismic accelerometer for permanent mounting on machinery. It is manufactured in a fully welded stainless steel housing with a hermetic sealed connector that will withstand harsh industrial environments, including high temperatures and splashing fluids. The IRD 911’s wide frequency and amplitude ranges accommodate most types of rotating machines. The small size permits installation near bearings. The IRD 911 has an internal, low-output impedance amplifier capable of transmitting a vibration signal accurately through several thousand feet of cable, ideal for large installations with centralized signal processing equipment. A DC bias voltage on the output facilitates remote testing for cable continuity and proper operation. The IRD 911 can be mounted directly on the machine via a ¼”- 28 screw. The IRD 911 accelerometer is available in a straight or a right-angle mounted connector configuration. GENERAL SPECIFICATIONS Frequency Response 3Hz to 2kHz within ±10% @ 70°F (21°C) Sensitivity 100 mV/g ± 10% @ 100Hz Magnetic Field Sensitivity 100 µg/Gauss Output Impedance 100 Ohms Dynamic Range 1- 75 g peak Resonant Frequency 22 kHz nominal, mounted Transverse Sensitivity 5% average Grounding Case isolated from circuit Power Requirement +18 to +26VDC source through 1 to 4mA constant-current Diode Output Bias +10 to +18 VDC Housing 316L-series stainless steel Seal Hermetic Environmental Protection Meets NEMA 4x, 12, 13, IEC IP66 Temperature Range -40 to 300° F (-40 to 149° C)