Automation · Products
If it is not measured properly,it cannot be controlled
Transmitters, switches and sensors specified for the actual process conditions, installed so the reading is true, calibrated against a standard, and wired into the control system with the signal path documented end to end.
4-20 mA
To HART, Modbus and wireless
Loop
Calibrated and documented
4
Countries commissioned in
In-house
Panels, logic and field work
What this covers
Specification and selection
Range, wetted materials, process connection, ingress and hazardous-area rating chosen against the real conditions — temperature, pressure, slurry, vibration — so the device suits the duty as well as the port.
Installation that measures correctly
Impulse lines sloped the right way, seals and capillaries where needed, straight runs upstream of flow meters, thermowells at the right insertion depth. Most bad readings trace back to installation.
Calibration and loop checking
Each instrument calibrated across its span and each loop proven field-to-screen, recorded on a schedule with the reference standard noted so the figures mean something later.
Signal conditioning and isolation
Isolators, barriers and surge protection on long field runs, screened and segregated cabling, and earthing done once at the right point rather than everywhere.
Machine safety devices
Belt conveyor pull-cord and belt-sway switches, limit switches, zero-speed and chute-block detection, wired into interlocks and proven to stop the drive.
Condition monitoring
Vibration, bearing temperature and load trending on the machines that hurt most when they fail, so a bearing is changed at a planned stop.
Remote data and reporting
Readings logged, trended and turned into shift or batch reports — including plants where the owner watches the numbers from another city. This is usually where SENTIENT comes in.
Fault-finding on existing loops
Drifting readings, intermittent signals and loops that have been in manual for years. We trace them back through the cable and the card before touching the transmitter.
What we supply
Level and pressure transmitters · temperature assemblies · flow meters · load cells and belt weighers · encoders and limit switches · belt conveyor safety switches · PID controllers · condition monitoring · radio-modem and RADAR links
Also supported
Existing field instrumentation installed by others, including loops with no records and instruments long out of calibration
Sectors
Steel and ferro alloys · refineries and oil · coal washeries and mines · material handling · boilers · food and process plants · distillery and bottling
Platforms we work on
We are not tied to one vendor. The right controller is the one your maintenance team can get spares for.
Level
Radar, ultrasonic, capacitance, float and differential-pressure level transmitters, plus point-level switches.
Pressure
Gauge, absolute and differential pressure transmitters, with seals and capillaries for hot or fouling service.
Temperature
RTD and thermocouple assemblies with thermowells, transmitters and indicators.
Flow
Electromagnetic, ultrasonic, differential-pressure and mechanical flow measurement, sized for the pipe and the fluid.
Weight and load
Load cells, belt weighers and batching systems tied into the PLC for recipe and production counting.
Speed and position
Encoders, proximity and zero-speed switches, limit switches and position feedback for drives and gates.
Safety switches
Pull-cord, belt-sway, chute-block and tilt switches for conveyors and material handling.
Condition monitoring
Vibration and bearing temperature monitoring, with alarm thresholds set to the machine it is watching.
Networks and protocols we commission
- Modbus TCP
- CANopen
- OPC DA
- REST / Webhooks
- IEC 61850
- IEC 60870-5-104
- DNP3
- Radio link
- Bluetooth LE
Running on something obsolete?
Most of what we are called in for is an existing plant — a control system nobody can buy parts for any more.
- Chart recorders and local gaugesTransmitters logged, trended and reportable
- Loops left in manual for yearsInstruments repaired or replaced and the loop tuned back into auto
- Readings written on a clipboardAutomatic logging with shift and batch reports
- Obsolete transmitters with no sparesCurrent instruments, ranges and tags carried across
- Unprotected long field runsIsolated and surge-protected signals that stop dropping out
How a job runs
Design, build and commissioning are all ours, so there is no gap between the drawing, the panel and the engineer on site.
- 01
Instrument survey
We list what is installed, what it reads and what nobody trusts any more — with the process conditions at each point.
- 02
Specification and index
Instrument index, datasheets, ranges and hook-up drawings issued for approval before procurement.
- 03
Supply and panel integration
Instruments supplied and marshalling built into panels from our own works, with the I/O card allocation agreed.
- 04
Installation and hook-up
Mounting, impulse lines, cabling, glanding and termination on site by our own engineers.
- 05
Calibration and loop check
Every instrument calibrated and every loop proven field-to-screen, signed off point by point.
- 06
Handover
Calibration records, instrument index, hook-up drawings, spares list and training for your maintenance team.
What you get at handover
Documentation is part of the job. You should be able to maintain the system yourself, and call us because you want to.
- Instrument index with tags and ranges
- Instrument datasheets
- Hook-up and mounting drawings
- Cable schedule and termination details
- Calibration certificates and records
- Loop check schedules, signed
- Alarm and trip setting schedule
- Operation and maintenance manual
- Spares list with part numbers
- Maintenance team training
Where we have done it
- Pressure data acquisition and reporting for the homogeniser at Balmer Lawrie, Kolkata
- Chart recorder, temperature indicator and HMI at Cresmac Foundry
- IIoT solution with report generation for the lubricant kettle at Sun Oil
- Boiler installation and commissioning with remote data viewing
- Complete electrical, instrumentation and automation engineering at Bhojudih Coal Washery, Dhanbad
- Supply, installation and commissioning of instruments alongside VFD panels
- Wireless and IIoT solution for the coke oven at SAIL — IISCO, Burnpur