Wenzhou EAA Electric Co., Ltd — I/P and E/P Transducers Built To Drop Into Imported Instrument LoopsYueqing City, Wenzhou, Zhejiang, ChinaTel +86 577 65165096[email protected]
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OEM case

500AC Electro Pneumatic Converter Order

A repeat order for the most standard configuration in the EAA-500 family, built as one batch rather than accumulated from stock so that every unit in the shipment behaves the same way.

Controlair Type Transducer 500-AC configuration, 4-20 mA input, 3-15 psi (0.2-1.0 BAR) output, 180 ohms

Project challenge

What The Customer Needed

The buyer was replacing converters across a group of valves that had been fitted at different times. Units drawn from different production runs had shown different calibration behaviour, which made loop tuning a per-valve job instead of a one-off.

Our solution

How It Was Built

The whole quantity was built in a single run, from one batch of parts, and calibrated consecutively on the same bench against the same standard current generator and 0.1 class pressure gauge.

Production and quality control

What The Photographs Show

The batch photographs show the units laid out on the bench with their signal leads connected for calibration. Zero is set at 4 mA against 20 kPa and span at 20 mA against 100 kPa, then the two points are repeated until both hold.

500AC Electro Pneumatic Converter Order production batch photograph 1
500AC Electro Pneumatic Converter Order production batch photograph 2
500AC Electro Pneumatic Converter Order production batch photograph 3
500AC Electro Pneumatic Converter Order production batch photograph 4
500AC Electro Pneumatic Converter Order production batch photograph 5
Result

How It Finished

One consistent batch, calibrated on one bench, so the loops could be tuned once and the settings reused across the group.

FAQ

Questions About OEM Orders

Can this configuration be supplied under our own brand

Yes. Nameplates are printed to customer artwork and part numbering and checked against the build before fitting.

How is a batch kept consistent

The whole quantity is built in one run and calibrated consecutively on the same bench against the same standard current generator and 0.1 class pressure gauge.

What is the specification on this order

500-AC configuration, 4-20 mA input, 3-15 psi (0.2-1.0 BAR) output, 180 ohms.

Can we order a different range in the same body

Yes. The published selection table or coding system for this pattern lists the available input signals, output ranges and terminations.

Next step

Order The Same Configuration

Send the range, the termination and the quantity, and the quotation comes back against the published selection table for this pattern.