Ordering Information Model ST5484E Seismic Velocity 4-20 mA Velocity Transmitter Full Scale Range(1) 123 2.0 in/sec (50.8 mm/s) peak(6) Housing Material & Stud Size(1) 02 303 SS housing, ? x 24 UNF – ½” stud Hazardous Area Certification(2),(3),(4),(5) 1 CSA US/C, Class I, Div 2, Grps A-D (non-incendive) Connection Type(2) 4 2-Pin MIL-Style (MIL-C-5015); (4-20 mA output only) High-Pass Filter 0 2 Hz (standard) Low-Pass Filter 0 1500 Hz (standard) Smaller-diameter mounting studs are not able to withstand sustained ambient vibration levels above 2.0 in/sec. Consult Table 2 for allowable combinations of A and B options.Hazardous Area Certifications are not compatible with all connection types. Consult Table 3 for allowable combinations of C & D options.Some approvals require intrinsic safety barriers, others require Explosion-Proof wiring practices. Refer to Table 4.Refer to the Accessories section of this document. Units sold with an explosion proof or increased safety rating will include an 8200- 000 IEC or 8200-000 explosion proof elbow that will be affixed at the factory. For increased safety with D=4, elbow is not required.For SIL approval, add an “S” prefix to the desired Hazardous Area Certification (Option C). The ST5484E uses an RMS amplitude detection circuit. Full scale ranges in peak units use scaled RMS (i.e., RMS x v2). The “derived peak” measurements will equal true peak only under the special case of a pure sinusoid, not complex vibration signals.