Built to order

Custom test equipment

When the test you need has no instrument, we build the instrument.

The problem

A production check, a sensor comparison or an end of line test rarely has a product behind it. What exists is either a laboratory instrument priced for a laboratory, or nothing at all.

So the work gets done by eye, or it does not get done.

How one gets built

Start from the measurement

What has to be known, to what accuracy, and how often. That decides the sensor and everything after it.

Electronics and enclosure

Own board and own housing, made for the bench or the machine it will live on rather than adapted to it.

A reading anyone can use

The result is shown as a gauge or a pass and fail band, so the operator does not have to interpret a raw number.

Set from a browser

Calibration, scale and the accepted range are adjusted from a phone over the device's own Wi-Fi.

Updated in place

Firmware arrives over the air as an encrypted package, so a rig can gain a feature without coming back.

Printed parts

Housings, brackets and fixtures are 3D printed, which is what makes one-off equipment affordable at all.

Example: a two channel sensor checker

Two sensors that should tell the same story, side by side. Each channel is a gauge with its accepted range drawn as a ring around it, so a sensor that drifts is seen before anyone has to read a number.

The checker's screen, redrawn to its real layout. The reading sits inside the arc, the raw sensor signal in millivolts under it, supply voltage on the bottom row. The left channel is inside its accepted range; the right one has fallen below it.

Inside the rangeThe arc turns green. Nothing to decide.

Outside the rangeThe arc keeps its base colour. A small margin keeps it from flickering at the limit.

FaultA signal outside its electrical window is a broken wire or a dead sensor, not a reading. It is flagged on its own channel and never hides the other.

Every limit is a setting

The rig opens its own Wi-Fi access point and serves one page. No app, no cable, no laptop with the right driver.

Calibration per channel, from two known points
Scale of the gauge, and the name shown under it
Accepted range, the ring around the arc
Fault window, the signal levels that mean a wiring fault
Demo mode for showing the rig without a sensor connected

Typical jobs

Sensor checker

Is this sensor inside its limits, and do two of them agree? Answered at the bench before the part goes into the car.

Production check point

One measurement, one pass band, the same verdict from every operator on every shift.

Assembly aid

A pressure, a position or a voltage shown large while both hands are busy with the adjustment.

Technical

Channels	One or more, defined per rig. Two channel comparison has been built.
Display	Round or bar gauge on a colour display, legible across a workshop.
Limits	Accepted range and fault window per channel, set without tools.
Settings	Browser page served by the device over its own Wi-Fi access point.
Updates	Over the air, encrypted package.
Housing	3D printed for the bench, the machine or the vehicle.
Serial output	Available where the rig has to talk to a PC.

Availability

Everything on this page is built to order. The gauges shown are our own bench equipment, redrawn from their real screens. The accuracy of each rig is agreed for the job.

There is no price list. Tell us what has to be measured, and you get an assessment.

Ask about it

Describe the test, how often it happens, and what a wrong result would cost.

info@soontek.net