Field instruments and meters that measure pressure, temperature, flow and level, sourced to range, process connection, output and material.
Instrumentation is how a plant knows what is happening inside pipes, tanks and machines. Transmitters convert a process variable into a standard signal, most often 4–20 mA, sometimes with HART or a fieldbus, that a PLC or DCS reads.
Instruments are specified around the process: range, medium, temperature, pressure, process connection, wetted materials and accuracy. Getting any of these wrong can mean a meter that cannot be fitted or fails early.
Each line below explains what it is, where it is used, and what to include in your enquiry so we can quote accurately.
Pressure transmitters measure gauge, absolute or differential pressure. Differential types are also used to infer flow and level.
Buying noteGive the normal and maximum pressure, medium and process connection.
RTDs (typically Pt100) offer accuracy at moderate temperatures; thermocouples (such as Type K) cover higher temperatures. Thermowells protect the sensor in the process.
Buying noteState insertion length, process connection and whether a thermowell is required.
Electromagnetic meters suit conductive liquids such as water; vortex meters suit steam and gases; ultrasonic and Coriolis meters cover other duties. The medium decides the technology.
Buying noteSend medium, line size, flow range, pressure and temperature.
Level is measured continuously with radar, ultrasonic or hydrostatic transmitters, or detected at a point with float, vibrating or capacitive switches.
Buying noteDescribe the tank, medium and whether foam, dust or agitation is present.
Digital meters display voltage, current, power and energy, often with Modbus communication for energy monitoring systems.
Buying noteConfirm CT secondary (1 A or 5 A), communication and panel cutout.
Common instrument outputs and connections (illustrative)
Values are typical examples for orientation, not confirmed AMZ Industries stock. Your project specification governs.
| Instrument | Typical output | Typical connection |
|---|---|---|
| Pressure transmitter | 4–20 mA / HART | ½" NPT |
| Temperature | Pt100 / 4–20 mA | Thermowell, threaded |
| Flow meter | 4–20 mA / pulse | Flanged |
| Level | 4–20 mA / relay | Flanged or threaded |
| Digital meter | Modbus RTU | Panel cutout |
Temperature and pressure measurement in controlled processes.
Flow and level measurement in hygienic systems.
Flow, level and pressure across pumping stations.
Steam pressure, temperature and flow.
An instrument datasheet is ideal. Without one, provide these.
Medium, normal and maximum pressure and temperature.
The measurement span and accuracy needed.
Process connection and wetted parts compatible with the medium.
Output and protocol the control system expects.
AMZ Industries is a sourcing and supply company. We work from your specification, drawing or part number and come back with a clear quotation. If an item cannot be matched exactly, we say so rather than substitute it.
Specification, drawing, part number or a full BOM.
Through our supplier and trading-partner network.
Pricing and lead time, line by line.
Delivered against your confirmed order.
Quick answers about sourcing instrumentation.
Yes. Datasheets give the most accurate quote.
Tell us your requirement and we confirm what the manufacturer supplies with the instrument.
Share specifications, quantities or a part list and we will confirm availability, pricing and lead time.
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