Quality and Testing

Every unit is tested before it ships and the record for that serial number goes with it. Below is what is measured, how it is measured, and what documentation we can hand over for a procurement file.

Quality management system

Our QMS is certified to ISO 9001:2015. The certificate copy — with certificate number, issuing body and validity dates — is supplied on request with the quotation package, so the document you file is the current one rather than a picture on a web page.

Document	What it states	How to obtain
ISO 9001:2015 certificate	Certificate No. 02825Q11586R0S, issued by ZhongAn Certification (中安认证) on 19 May 2025, valid to 18 May 2028. Scope: R&D of solid-state lasers, semiconductor lasers and laser rangefinders; sales of optoelectronic products.	Copy on request
CE declaration of conformity	No. HPT-220930L0044, EMC Directive 2014/30/EU, tested to EN IEC 61326-1:2021 (report HPT-220930L0044E), issued 8 October 2022 by Shenzhen Huapin Testing Technology. Covers the LRF rangefinder models listed on the declaration (LRF-905 / LRF-1535 / LRF-1570 / LRF-1064 series). It is not a blanket CE declaration for the ER-module range.	Copy on request
Laser safety classification	Class per model under IEC 60825-1	With datasheet

Per-unit factory test

Each unit goes through five stages, in this order: incoming optics and diode check, alignment and cavity check, burn-in at rated duty, final measurement, then environmental screening where the order calls for it. Energy and baseplate temperature are recorded at the start and end of burn-in.

The test record travels with the unit. A sample of its structure:

Field	Example of the content
Model / serial	ER300 / [serial]
Test date and station	[date] / [station]
Conditions	Baseplate temperature at test, drive settings used
Measured items	Pulse energy, pulse width, divergence, threshold
Result and criterion	Value against the guaranteed minimum for that model
Instrument	Sensor and oscilloscope bandwidth used

We send a redacted copy of a real record for a comparable model when a customer needs to see the format before ordering. Customer names and order references are removed.

Optical performance testing

Energy is measured with a pyroelectric sensor; pulse width with an InGaAs photodiode and an oscilloscope of matched bandwidth; divergence by the two-distance method. The instrument and the condition are stated on the record, because a value without them is not comparable with anyone else's.

The reasoning behind each method is written up here: Incoming inspection — how to measure.

Environmental testing

Shock and vibration are tested to MIL-STD-810G methods (1500 G, 0.5 ms; 20–2000 Hz / 20 G) on the models whose datasheet states it. Temperature range is per model: −40 to +65 °C for the standard range, −45 to +65 °C for the high-repetition family.

Three states are distinguished on purpose: tested (the unit was subjected to the method), passed (it met the stated criterion afterwards), and certified (a third party issued a certificate). We only claim the first two at component level; certification of a finished payload is the system integrator's assessment.

Traceability

Every unit carries a serial number linked to its build record: model, configuration, batch of the gain element, drive settings used at test, and the date of test. If a unit comes back two years later, the record tells us what it did when it left.

OEM and custom programmes

For a custom build the sequence is: sample approval against an agreed specification, first-article inspection, then production with change control — no change to optics, drive or housing is shipped without written notification and, where it affects form, fit or function, a new sample approval.

Requesting evidence

Tell us which document your compliance or procurement team needs: the certificate copy, a redacted test record for a model, a declaration of conformity, or the change-control procedure. We send the current revision with its issue date.

Request quality documentation