Relative pressure sensor 6159A series

piezoelectric0-10 Vbare wires

Overview
Compact piezoelectric cavity pressure sensor (Type 6159A) designed for direct measurement in injection-mould cavities. The small front diameter and O-ring sealing make it suitable for multi-cavity tools and confined cavity geometries.

Main features

• Pressure range: 0 … 2000 bar
• Front diameter: ø2.5 mm
• Quartz piezoelectric sensing element
• Output after amplifier: 0 … 10 V
• Exchangeable single‑wire or coaxial connecting cables
• O-ring seal for annular gap <10 µm; centers sensor in mounting bore
• Sensor front machinable to adapt to cavity wall
• All sensor parts corrosion‑resistant

Product description
The Type 6159A cavity pressure sensor measures mould cavity pressure directly via a quartz piezoelectric element. Pressure acting on the entire front face is transmitted to the quartz element, producing a charge proportional to pressure (pC). An amplifier converts this charge into a voltage signal (0 … 10 V) available at the amplifier output. An O-ring seals the annular gap (<10 µm) between sensor and mounting bore and ensures centred alignment. The exchangeable cable is screwed to the sensor with a tight seal. For multi‑cavity applications the sensor is used without the single‑wire connector Type 1839. Multiple cable types and lengths are available to suit installation and measurement setups.

Available variants (examples)

• 6159AE — direct measuring, single‑wire cable (1.5 m) with connector
• 6159AE1 — direct measuring, single‑wire cable 5.0 m with connector
• 6159AEU6 — coated front, single‑wire cable (1.5 m) with connector
• 6159AG — direct measuring, single‑wire cable (1.5 m) without connector
• 6159A — base variant, direct measuring (ø2.5 mm, 2000 bar)
• 6159AZSP — direct measuring with coaxial cable, custom length
• 6159A0,0 — direct measuring, without cable
• 6159A0,2U6 / 6159A0,4U6 / 6159A0,6U6 / 6159A0,8U6 — coated front variants with different cable lengths
• 6159AGU6 / 6159AU6 — additional front/coating and cable configurations

Technical specifications

• Type: cavity pressure sensor, direct measuring (Type 6159A)
• Front diameter: 2.5 mm
• Pressure range: 0 … 2000 bar
• Sensing element: quartz piezoelectric
• Signal: charge proportional to pressure (pC), converted to 0 … 10 V by amplifier
• Seal: O‑ring for annular gap <10 µm; centres sensor in bore
• Cable: exchangeable; single‑wire or coaxial options, various lengths
• Construction: corrosion‑resistant parts; exchangeable, sealed cable connection
• Application note: for multi‑cavity moulds use without Type 1839 single‑wire connector