IEPE accelerometers

SM103 and SM102 side exit integral cable accelerometers

SM Series of Integral Cable Sensors

Model: SM102 and SM103

The SM Series of integral-cable, side-mount sensors are a budget friendly line of accelerometers designed for ease of installation, even in hard-to-reach spaces. The pivoting mounting base allows sensor installation in any orientation - the user can turn the sensor 360° and tighten the base when the ideal mounting orientation is achieved for minimal cable strain. It can be used for condition monitoring of rotating equipment in tight-clearance installations, aggressive environments, or submerged locations.

Key features and benefits

More affordable than other side-exit, integral-cable sensors – without loss of reliability and performance
Compact size with low profile to fit in tight and hard-to-reach spaces with low clearance requirements
Pivots on integral mounting base for 360° cable orientation with reduced cable strain
Mountable in various orientations and locations, allows users to tighten sensor in final measurement position
Integral cable for submerged or aggressive environments

SM Series differences
360° orientation

SM Series differences

The following specifications and features differ between the SM102 and SM103.

PARAMETER	SM102	SM103
Cable material	molded connector, polyurethane jacket, shielded twisted-pair cable	polyurethane jacket with stainless steel armor jacket, shielded twisted-pair cable
IP rating	IP68 Continuous submersion	IP67 Submersible up to 1 m
Height	0.98” (24.9 mm)	1.01” (25.5 mm)
Applicability	Waterproof in submerged applications >1 m	Armor protects against cable damage in aggressive environments
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Specifications	SM102 data sheet	SM103 data sheet

SM102 and SM103 common specifications

The following specifications are the same for the SM102 and SM103.

PARAMETER	VALUE (SM102 and SM103)
Sensor output	Dynamic vibration (IEPE)
Sensitivity	100 mV/g
Sensitivity tolerance	±15%
Full-scale range	50 g
Amplitude nonlinearity	1%
Transverse sensitivity, max	7% of axial
Frequency response	0.5 - 10,000 Hz
Mounting thread	1/4-28 tapped hole
Connector style	integral cable, 10 ft. standard
Connector orientation	side exit, 360° cable orientation
Resonance frequency	25 kHz
Temperature range	–50° to +120°C
Weight	31 grams (without cable)
Power requirement: Voltage source Current regulating diode	18 - 28 VDC 2 - 20 mA
Bias output voltage	8 to 12 VDC
Grounding	case isolated, internally shielded
Vibration limit	500 g peak
Shock limit	5,000 g peak
Sealing	hermetic
Sensing element design	ceramic, shear
Case material	stainless steel
Mounting	1/4-28 stud

SM Series accelerometers pivot on an integral mounting base. This makes it possible to easily position the sensor and connector with minimal strain on the integral cable. To install, simply thread the sensor's hex nut onto the mounting stud. Rotate the sensor to position the integral cable to the desired location and tighten the hex nut.