.apter-b3,.apter-b3 *{box-sizing:border-box}.apter-b3{width:100%;color:#20272E;font-family:Arial,Helvetica,sans-serif;font-size:15px;line-height:1.72}.apter-b3 img{max-width:100%;height:auto}.apter-b3 .b3-hero{padding:34px 32px;border-left:7px solid #0E8A7B;background:linear-gradient(105deg,#F4F1EA 0%,#FFF 74%);box-shadow:0 14px 34px rgba(32,39,46,.07)}.apter-b3 .b3-eyebrow{margin:0 0 10px;color:#0E8A7B;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase}.apter-b3 h1{margin:0 0 10px;color:#20272E;font-size:30px;line-height:1.22;letter-spacing:-.02em}.apter-b3 .b3-family{margin:0;color:#58636B;font-size:16px}.apter-b3 .b3-convert{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;margin:26px 0 18px;padding:24px 26px;background:#20272E;color:#FFF}.apter-b3 .b3-convert h2{margin:0 0 7px;color:#FFF;font-size:23px}.apter-b3 .b3-convert p{margin:0;color:#DDE5E3}.apter-b3 .b3-contact{display:grid;gap:8px}.apter-b3 .b3-contact a,.apter-b3 .b3-contact span{display:block;padding:9px 12px;border:1px solid #4B5B61;color:#FFF;font-size:15px;font-weight:700;text-decoration:none;overflow-wrap:anywhere}.apter-b3 .b3-contact a:hover{border-color:#A7C957;color:#A7C957}.apter-b3 .b3-poster{display:block;width:800px;max-width:100%;margin:0 auto 42px;border:1px solid #D7DEDC}.apter-b3 .b3-section{margin:0 0 42px}.apter-b3 .b3-heading{display:flex;align-items:center;gap:13px;margin:0 0 18px;padding-bottom:12px;border-bottom:1px solid #D7DEDC}.apter-b3 .b3-heading span{display:grid;place-items:center;flex:0 0 36px;width:36px;height:36px;border-radius:50%;background:#0E8A7B;color:#FFF;font-size:12px;font-weight:700}.apter-b3 .b3-heading small{display:block;margin-bottom:2px;color:#7A858B;font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.apter-b3 .b3-heading h2{margin:0;color:#20272E;font-size:23px;line-height:1.25}.apter-b3 .b3-copy p{margin:0 0 15px;color:#313B42;font-size:16px}.apter-b3 .b3-features{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.apter-b3 .b3-feature{min-height:172px;padding:20px;border:1px solid #D7DEDC;border-top:4px solid #A7C957;background:#FFF}.apter-b3 .b3-feature span{color:#0E8A7B;font-size:12px;font-weight:700}.apter-b3 .b3-feature h3{margin:8px 0;color:#20272E;font-size:17px;line-height:1.3}.apter-b3 .b3-feature p{margin:0;color:#58636B;font-size:14px;line-height:1.58}.apter-b3 .b3-spec{width:100%;border-collapse:collapse;border:1px solid #D7DEDC}.apter-b3 .b3-spec th,.apter-b3 .b3-spec td{padding:11px 14px;border:1px solid #D7DEDC;text-align:left;vertical-align:top}.apter-b3 .b3-spec th{width:34%;background:#F4F1EA;color:#20272E;font-weight:700}.apter-b3 .b3-risk{padding:22px 24px;border:1px solid #E0C98E;border-left:6px solid #C58B1A;background:#FFF9EA}.apter-b3 .b3-risk strong{display:block;margin-bottom:7px;color:#855C0D;font-size:17px}.apter-b3 .b3-risk p{margin:0}.apter-b3 .b3-faqs{display:grid;gap:15px}.apter-b3 .b3-faq{padding:19px 21px;border:1px solid #D7DEDC;background:#FFF}.apter-b3 .b3-faq h3{margin:0 0 8px;color:#0E6F64;font-size:17px;line-height:1.42}.apter-b3 .b3-faq p{margin:0;color:#414C53;font-size:15px}.apter-b3 .b3-source{padding:17px 20px;border-left:5px solid #0E8A7B;background:#EAF5F2;color:#35434A;font-size:14px}.apter-b3 .b3-source strong{color:#20272E}.apter-b3 .b3-note{margin-top:10px;color:#667178;font-size:13px} @media(max-width:680px){.apter-b3{font-size:14px}.apter-b3 .b3-hero{padding:25px 18px}.apter-b3 h1{font-size:25px}.apter-b3 .b3-convert{grid-template-columns:1fr;padding:21px 17px}.apter-b3 .b3-poster,.apter-b3 .b3-section{margin-bottom:34px}.apter-b3 .b3-heading h2{font-size:21px}.apter-b3 .b3-features{grid-template-columns:1fr}.apter-b3 .b3-feature{min-height:0}.apter-b3 .b3-spec th{width:40%}.apter-b3 .b3-spec th,.apter-b3 .b3-spec td{padding:9px 8px;font-size:13px}.apter-b3 .b3-faq h3{font-size:16px}} Bently Nevada · Verified configuration 138708-01 3500/42M Shaft Absolute I/O Module, Internal Terminations 3500/42M Proximitor/Seismic Monitor Confirm the exact configuration Send the full part number, quantity, destination and available nameplate photos for a focused quotation review. WhatsApp · +8618020776782Email · sales1@apterpower.comManager · JimPei 01 Product identity Product Description 138708-01 is the internal-termination Shaft Absolute I/O module for the Bently Nevada 3500/42M Proximitor/Seismic Monitor. It supports the manufacturer-defined combination of proximity and seismic transducer inputs used to derive shaft-absolute motion within the 3500 monitoring system. 138708-01 is not a general four-channel Prox/Velom module. Its channel pairing and transducer-supply arrangement are specific to shaft-absolute measurement, so the probe, velocity/seismic transducer, front monitor, firmware, and channel configuration must be checked as one measurement chain. 02 Fast recognition Three Selection-Critical Features 01 Shaft-absolute measurement path Supports the paired proximity and seismic input...