Instrumentation and control system services for commercial and industrial facilities across New Brunswick.
Serving plant managers, maintenance managers, facility operators, process industries, controlled-environment agriculture, manufacturers, and building operators.
Commercial and industrial clients across New Brunswick
Systematic, experience-backed technical support for your instrumentation, controls, and automation systems.
Systematic fault diagnosis of instrumentation loops and control systems. Root-cause analysis to identify the source of failures quickly and accurately.
Scheduled inspection and maintenance of instrumentation and control equipment. Documented reports to support compliance records and maintenance planning.
Inspection, testing, and maintenance of process measurement instruments. Assessment of measurement accuracy and instrument condition.
Functional testing of transmitters and field verification of calibration status. Findings documented in equipment inspection and maintenance reports.
Inspection and functional testing of control valves, pneumatic and electric actuators, and positioners. Identification of mechanical and signal-related issues.
End-to-end loop testing and signal tracing to identify opens, shorts, ground faults, and signal errors in analogue instrument loops.
Testing and verification of field sensors, limit switches, level switches, and process alarm set-points. Confirmation of proper installation and operation.
Diagnostic testing of PLC input/output circuits and control wiring. Identification of wiring faults, failed I/O points, and signal integrity issues.
Fault diagnosis on building automation systems and direct digital controls. Assessment of controller performance, sensor inputs, and actuator outputs.
Documented inspection findings and maintenance activity reports. Reports suitable for maintenance records and equipment history tracking.
On-site technical support during planned plant shutdowns and turnarounds. Instrumentation maintenance tasks coordinated with shutdown schedules.
Review and mark-up of existing control drawings and loop sheets. Documentation of as-found device configurations and field data.
Regulated electrical installation work is completed only within applicable licensing and permit requirements or in coordination with a licensed electrical contractor. Calibration services described are field verification and functional testing; ISO-accredited laboratory calibration is not offered.
D-Ruby Industrial Instrumentation is led by a Red Seal Industrial Control Technician with over 20 years of hands-on experience across instrumentation, industrial controls, building automation systems, and systematic fault diagnosis.
This depth of field experience — spanning process instrumentation, control circuits, BAS/DDC systems, and equipment maintenance — is applied directly to every industrial assessment and maintenance engagement in New Brunswick.
Industrial and commercial clients across New Brunswick. Contact us to confirm coverage for your site location.
Common questions from plant managers and facility teams.
Submit the online enquiry form describing your facility, equipment, and service need. We will contact you to discuss scope, site access, scheduling, and to provide a quote. We do not apply the appliance repair diagnostic fee to industrial enquiries.
Yes. We provide planned shutdown maintenance support for instrumentation and control system tasks. Include your shutdown dates and requirements in the enquiry form so we can assess availability and scope.
No. We provide field calibration verification and functional testing of instruments — confirming that instruments are operating within expected parameters and identifying discrepancies. ISO-accredited laboratory calibration requires a certified calibration laboratory and is not a service we offer.
Regulated electrical installation work is completed only within applicable licensing and permit requirements, or in coordination with a licensed electrical contractor. Our primary scope is instrumentation, controls, and diagnostics work.
Helpful information includes: facility type and location, industry or process description, the specific equipment or system involved, symptoms or fault description, urgency, preferred service date, and any relevant safety or site access requirements. Uploading photos, loop diagrams, or device datasheets is optional but helps us scope the work accurately.
We do not advertise 24/7 emergency availability. For urgent matters, contact us by phone at 506-871-8564 and we will advise on our current availability and response time.
Submit an enquiry form with your facility details and service need. We will review it and be in touch to discuss scope and scheduling.