VEGA VEGACAP 98 Polypropylene Capacitive Rod Level Switch

An economical all-plastic rod switch for unpressurised tanks

The VEGACAP 98 is VEGA’s adjustment-free, economical capacitive level switch for liquids and bulk solids, and the specification sheet singles out overfill protection and dry-run protection in adhesive, conductive products as the typical jobs. Its wetted parts are made completely of PP (polypropylene), the rod is up to 2 m long and the switch works in products from a dielectric constant of 1.5. Because it is limited to unpressurised operation and -40 to +80 °C, it is aimed at plain storage and day tanks, chemical dosing vessels and sumps rather than hot or pressurised process vessels.

Technical specifications

Why an all-polypropylene rod

With no metal and no coating, the wetted surface is one material, which removes the question of whether a PTFE film or a stainless rod is compatible with a particular acid, alkali or cleaning chemical. The trade-off is range: the rod is shorter than in the metal-cored VEGACAP 62 or 64 and the rating stops at unpressurised service and +80 °C. VEGA presents the exact switching point under strong buildup and the low maintenance of the mechanical construction as the user benefits.

Setup, wiring and ordering

No filling of the vessel is needed to commission it. On the electronics module a DIL switch sets the mode (min or max) and a potentiometer sets the switching point, while a lamp shows the state. The relay has two changeover contacts, so one contact can feed a pump or valve and the other an alarm or PLC input, within the 3 A AC or 1 A DC limits printed in the sheet. A broad supply range of 20 to 253 V AC or 20 to 72 V DC lets the same module run in 24 V DC panels and on 230 V AC mains.

For an RFQ give the rod length, thread, medium and its dielectric constant, supply voltage and housing material. VEGA’s sheet refers to its online configurator for the full list of materials, seals and approvals, so please confirm those details, and whether the WRA approval applies to your exact version, with the manufacturer before ordering.

Related VEGA products: VEGA VEGACAP 64 PTFE Insulated Capacitive Rod Level Switch, VEGA VEGACAP 62 Capacitive Rod Point Level Switch up to 6 m, VEGA VEGACAL 63 Capacitive Rod Level Probe, VEGA VEGAPOINT 21 Compact Capacitive Point Level Switch, VEGA VEGACAP 65 Capacitive Cable Level Switch up to 32 m and VEGA VEGAPOINT 31 Capacitive Level Switch for Powders.

Documents and quotation

The official VEGA VEGACAP 98 (relay DPDT) specification sheet (34674-EN, version 160112) is attached to this page for download and covers the technical data, dimensions and wiring summarised above.

RFQs are welcome with the tag number, medium, process conditions and electrical requirements. Seven Star LLC is an independent supplier based in Muscat and will answer with a quotation; compare alternatives in our level instrumentation section. Ordering details such as configuration, approvals and connection should be confirmed with the manufacturer before purchase.