Home About Us Manufacturers Products Services Clients Downloads Blog Guides FAQ Contact
ACI ACI (Automation Components, Inc.)

Q5/B5 Series BACnet MSTP Gas Sensor

Smart BACnet MSTP gas sensor with 3 SPDT relays, NEMA 4X enclosure.

ModelQ5-B5-Series
SKUQ5-B5-SERIES
CategoryGas Detection

Key Features

  • BACnet MSTP communication, selectable baud rate to 76,800 bps
  • 3 programmable SPDT relays
  • Analog output: 4-20 mA, 1-5 VDC, or 2-10 VDC
  • 3 capacitive touch keys, dual-color status LEDs
  • 80 dB buzzer with 3 programmable tones
  • NEMA 4, 4X, 12, 13 / IP66 polycarbonate enclosure
  • cETLus Listed; UL 2075 for CO variants

Overview

The ACI Q5/B5 Series is a smart gas sensor with BACnet MSTP communication, built into a rugged NEMA 4X / IP66 polycarbonate enclosure for indoor industrial and commercial installations. It supports catalytic (combustible), electrochemical (toxic), oxygen/hydrogen, and infrared sensor types, with 3 SPDT relays and configurable 4-20 mA or 1-10 VDC analog outputs.

Working Principle

A field-selected gas sensor element (catalytic, electrochemical, oxygen/hydrogen, or infrared) continuously monitors ambient gas concentration. Three capacitive touch keys and dual-color LED indicators provide local status, while three programmable SPDT relays and an 80 dB buzzer drive alarm outputs; readings and configuration are accessible over BACnet MSTP.

Benefits

  • Rugged enclosure suits harsh indoor industrial environments
  • Field-configurable sensor element covers multiple gas types on one platform
  • Direct BACnet integration simplifies building/plant automation tie-in
  • 50 million mechanical / 200,000 electrical relay operations minimum

Technical Specifications

Detection
Sensor TypesCatalytic, Electrochemical, Oxygen/Hydrogen, Infrared
Service LifeElectrochemical (toxic): 2–3 years typical
Outputs
Relays3 × SPDT
Analog4-20 mA, 1-5 VDC, or 2-10 VDC (4-wire)
CommunicationsBACnet MSTP, 1200–76,800 bps (default 4800)
Enclosure
RatingNEMA 4, 4X, 12, 13 / IP66
MaterialPolycarbonate (Lexan), UL94 V-0
Conduit3/4" knockouts
Operating Conditions
Temperature0°C to 50°C (32°F to 122°F)
Humidity5–95% RH, non-condensing
EnvironmentIndoor use only
Warm-Up Time24 hours before calibration
Approvals
CertificationscETLus Listed, CAN/CSA-22.2 No. 61010-1, UL 61010-1; UL 2075 for CO variants

Downloads

Datasheet (PDF)PDF

Frequently Asked Questions

What warranty is offered on this product?

All Tetracon-supplied instruments carry the original manufacturer warranty (typically 12–24 months) plus first-line local support from our Islamabad service centre.

Do you provide installation and commissioning?

Yes. Our manufacturer-trained engineers offer on-site installation, commissioning and startup training anywhere in Pakistan.

Are spares and calibration available locally?

Common spares are held in local stock. Calibration is available at our lab or on-site with NIST-traceable reference standards.

How long is the typical lead time?

Stocked items ship within 3–5 working days; engineered configurations typically 6–10 weeks depending on manufacturer schedule.

Request a Quote — Q5/B5 Series BACnet MSTP Gas Sensor

Complete the form below and one of our engineers will respond within 1 working day with pricing and lead time. Prefer email? Contact our sales team.