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Cleanroom équipement pièces de rechange
Pressomètre différentiel numérique
A panel-mounted electronic gauge that gives operators an immediate local reading of small pressure differences between cleanroom, corridor, duct or filter reference points.
- Clear Local Pa Indication
- Separate High and Low Pressure Ports
- Three-Key Front Configuration
- Panel-Clamp Replacement Format
Introduction de produit
This digital differential pressure gauge integrates a low-pressure sensing cell, display electronics and panel-mount hardware in one compact indicating instrument. The single high-contrast LCD presents the measured pressure difference and engineering unit at the equipment face, while three front keys support zeroing and configured display functions without an analog pointer or fluid column. Red and blue rings distinguish the two air-tube connections, and a seven-position rear screw terminal provides one organized point for power, signal and optional alarm wiring. Two stainless retaining clips secure the rectangular bezel to a prepared panel opening. Measurement span, supply, output, tubing size and alarm functions are selected to suit room pressurization, filter condition or ventilation service.
Key Features
Red and blue rings make the high- and low-side hose connections visually distinct during tubing installation and subsequent maintenance checks.
Three sealed front keys provide a concise interface for permitted zero, unit or setpoint functions while keeping the exposed face simple to wipe.
A rectangular bezel, two retaining clips and one rear terminal block support orderly panel replacement without a separate display module or external pointer mechanism.
Préoccupations du client produit
A useful local reading depends on both pneumatic routing and electrical configuration; an attractive display cannot compensate for reversed tubes, an unsuitable span or incorrect zero reference.
Connecting the higher-pressure pickup to the low port reverses the sign and can misrepresent the intended room-pressure relationship.The red and blue port markings are traced to the two pickup locations, and the displayed sign is verified with a known pressure direction after installation.
Selecting a broad full-scale range for a small cleanroom setpoint makes normal pressure changes harder to resolve on the display.The gauge span and engineering unit are chosen around the normal operating band and alarm thresholds while allowing margin for door and fan transients.
Leaks, sharp tube bends or condensate in either line can create a sluggish or offset indication even when the electronics remain powered.Both pressure paths are kept airtight, supported and free of restrictions, with pickup positions and tubing condition included in routine checks.
Replacing an instrument with different panel dimensions or terminal functions can leave an insecure bezel or incorrectly assigned conductors.Panel cutout, enclosure depth, clip travel, supply, output and terminal assignment are compared with the existing gauge before wiring or clamping the replacement.
Les applications typiques
Cleanroom-to-corridor pressure indicationAir-handling filter pressure-drop displayLaboratory room and anteroom monitoring panelsLow-pressure duct and fan-status indication
Paramètres techniques
These conservative ranges describe compact panel-mounted digital gauges for low differential pressure in clean dry air and non-aggressive gases; final span, signal and connection details are selected for the installed measurement loop.
| Matériaux de base | Light-gray PC/ABS bezel, dark PC/ABS rear enclosure, LCD module, silicon or ceramic differential-pressure sensing cell and protected FR-4 electronics |
|---|---|
| Panneau épaisseur | 1.5-4.0 mm nominal compatible panel thickness for standard retaining clips |
| Largeur effective | 92-145 mm nominal panel cutout or bezel width depending on selected instrument format |
| Longueur maximale | Up to 180 mm overall bezel width for representative cleanroom display configurations |
| Acier face épaisseur | 0 mm steel facing; stainless steel is limited to the panel-retaining hardware |
| Densité Core | Approximately 1140-1190 kg/m³ for representative PC/ABS enclosure grades |
| Conductivité thermique | Approximately 0.18-0.24 W/(m·K) for representative PC/ABS enclosure materials |
| surface finie | Fine-textured light-gray bezel, matte-charcoal fascia and case, pale green-gray LCD, red and blue port rings and neutral stainless clips |
| Type joint | Rectangular panel cutout with two spring retaining clips, two independent hose-barb pressure ports and one seven-position screw-terminal block |
| Customisation | Disponible en fonction de l'application prévue et de l'environnement d'exploitation. |
Options disponibles
Positive or bidirectional low-pressure spanPa, kPa, mbar or in. w.c. display units4-20 mA or 0-10 V retransmission outputConfigurable relay alarm and display backlight functions
Planning a Digital Differential Pressure Gauge specification?
Envoyez-nous vos dimensions, conditions d'installation, objectifs de performance et finition de surface requise.
