Front-left three-quarter view of a wall-mounted cleanroom temperature and humidity sensor with display and probe

Cleanroom Equipment Ersatzteile

Temperatur - und Feuchtigkeitssensor

A sealed wall-mounted transmitter that measures room temperature and relative humidity through one protected ventilated probe and sends both values to compatible monitoring or control equipment.

Combined Temperature and RH Measurement
Protected Ventilated Fixed Probe
Local Dual-Line Display
Configurable Control-System Output

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Produkteinführung

This temperature and humidity sensor combines one capacitive-polymer relative-humidity element and one temperature element inside a short ventilated probe beneath a sealed wall enclosure. A dark two-line display window provides space for local presentation of the two measured values, while green and amber indicators give concise operating-state feedback. The rear mounting face uses two keyhole positions, and one bottom cable gland leads to a four-position screw terminal behind a small service hatch. The transmitter is intended for fixed room monitoring rather than handheld spot checks; supply voltage, output type, measurement range and probe protection are selected to match the connected building-management, cleanroom-monitoring or process-control system.

Key Features

One exposed ventilated probe places both sensing elements in the room air stream while its slotted cap shields them from direct contact during routine cleaning.

A sealed molded enclosure separates the measurement electronics from the room surface and provides one controlled cable entry instead of loose external conductors.

The compact two-line display window supports simultaneous local reading of temperature and relative humidity without turning the transmitter into a handheld instrument.

Two rear keyhole points and a dedicated four-position terminal make mechanical replacement and conductor identification accessible from one service side.

Kunden Produktbedenken

A replacement environmental transmitter must agree with the installed probe location, output signal, supply, scaling and mounting details; matching only the enclosure size does not ensure comparable room data.

Mounting the probe close to a warm wall, supply-air jet or door opening can bias both displayed values away from representative room conditions.The sensor is positioned at the defined monitoring height with free air around the ventilated cap and separation from local heat, drafts and direct moisture.

A transmitter with the wrong analog range or digital protocol can send plausible-looking but incorrectly scaled values to the control system.Supply voltage, 4-20 mA or 0-10 V scaling, optional RS-485 protocol and channel assignment are matched to the receiving controller before connection.

Slow drift or contamination at the humidity element can change room-control decisions even when the display remains active.The fixed probe is inspected for blocked ventilation and compared periodically with a suitable reference at stable room conditions.

Cleaning liquid entering an open cable path or loosely closed service hatch can cause intermittent terminal faults.The single gland is sized to the installed cable, the terminal conductors are strain-relieved, and the gasketed service cover is fully reseated after wiring.

Typische Anwendungen

Cleanroom temperature and relative-humidity monitoringPharmaceutical production and gowning roomsControlled laboratory and metrology spacesEnvironmental input for building-management and room-control systems

Technische Parameter

The following conservative ranges describe compact fixed wall transmitters for combined room temperature and relative-humidity monitoring; exact measurement and output selections are configured for the receiving system.

Core Material	Light-gray PBT electronics enclosure with PC display window, capacitive-polymer humidity element, platinum or semiconductor temperature element and protected circuit board
Panel Dicke	1.5-3.0 mm nominal molded enclosure-wall thickness
Effektive Breite	100-140 mm nominal transmitter-body width
Maximale Länge	Up to 230 mm overall length including the short fixed probe and bottom cable gland
Stahl facing Dicke	0 mm steel facing; the exposed enclosure and probe cap are engineered polymer
Kerndichte	Approximately 1300-1450 kg/m³ for representative unfilled and reinforced PBT enclosure grades
Thermische Leitfähigkeit	Approximately 0.27-0.33 W/(m·K) for representative PBT enclosure materials
Oberfläche Finish	Fine-textured wipeable light-gray housing, dark PC display window, green and amber status indicators, white ventilated probe cap and black cable gland
Gemeinsamer Typ	Two-keyhole rear wall mounting with gasketed cover, one bottom compression gland and one four-position screw-terminal interface
Customisierung	Verfügbar je nach beabsichtigter Anwendung und Betriebsumgebung.

Verfügbare Optionen

4-20 mA or 0-10 V analog output configurationRS-485 building-control communication optionDisplay or non-display enclosure versionFixed polymer probe cap or compatible stainless sintered filter

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