LECO® elemental analyzer diagnostics, parts, and maintenance service agreements
We support the following current and retired LECO® models. Service and maintenance plans for LECO® elemental analyzers are available.
Lab equipment from LECO® that we troubleshoot and repair
Compass’s team of skilled engineers can help you keep your LECO analyzer equipment in top shape with a scheduled maintenance plan or support your lab if you have an emergency repair. If you find the high price of OEM repair services too much for your budget or if you are tired of waiting weeks for a repair – we are here to help! And unlike the OEMs, Compass will never declare your lab equipment obsolete. We can source and even fabricate parts – which we test and guarantee – to keep your older equipment in service.
We offer remote diagnostics as well as on-site repair. Our service agreements are structured to offer you a maintenance plan that supports your needs. Whether your LECO is a carbon sulfur organic or inorganic analyzer, an OHN inorganic analyser, or a nitrogen protein analyzer – Compass has the expertise to service your CHNOS analyzers.
LECO® CS-600
Part of the TruSpec line of analyzers, the CS-600 is a carbon sulfur inorganic analyzer. The Compass team can help keep your CS-600 running with LECO parts or a fabricated part if OEM parts are no longer available.
LECO® CS-844
A benchtop carbon and sulfur analyzer for metals and inorganic sample offers low cost per analysis – as long as it is in good repair. The Compass team can help you with repairs or scheduled maintenance to keep your CS-844 running smoothly.
LECO® CS-744
Typically used in carbon/sulfur combustion analysis, the CS-744 is a work horse machine for analysis of primary steels, ores, finished metals, and other inorganic materials. But every machine needs some downtime and the occasional repair. Compass can help!
LECO® TC-600
The TC-600 specializes in oxygen and nitrogen determination in ferroalloys, whether powder or granular. Specialized lab equipment requires a engineering service that understands the needed maintenance services and repair options. Compass has you covered!
LECO® ONH-836
Designed for the simultaneous wide-range measurement of inorganic oxygen, hydrogen and nitrogen, the ONH-836 analyzer offers years of industrial service, when properly maintained. Rely on the Compass team to support your lab with regular repairs and emergency service.
LECO® TGA801
“The TGA801 is the latest generation of automated macro thermogravimetric analyzers to enter the LECO line-up. Keeping your 801 well-maintained is crucial to determining weight loss, including moisture, ash, volatile content, and “loss on ignition” (LOI), in various organic compounds. Let Compass support you with the required regular upkeep.
LECO® analyzers
LECO® ONH-736
Now replaced by the ONH-836, you may find it difficult to get OEM support for the ONH-736. No worries! The Compass team can keep your equipment doing the simultaneous wide-range measurement of inorganic oxygen, hydrogen and nitrogen your lab relies on with our maintenance or emergency support services.
LECO® CS-200
The legacy model CS-200 carbon sulfur analyzer is ideal for smaller, low-volume laboratories requiring reliable, accurate results in metals, ores, ceramics and other inorganic materials. Given the analyzer age, potential problems can be avoided with regular maintenance. And if an emergency repair is needed – Compass can handle it!
LECO® CS-230
Available as carbon-only, sulfur-only, high-carbon/sulfur, low-carbon/sulfur, and high-sulfur configuration, the legacy CS-230 is ideal for lab operators with varying levels of expertise. But don’t worry! Compass has the right service expertise to keep your CS-230 operating.
LECO® CS-444
An older model carbon/sulfur analyzer, the CS-444 line is still active in many labs. With proper maintenance and service parts, your CS-444 can have years of analysis left. At Compass Engineering, our team is trained and experienced in maintaining LECO’s older lines.
LECO® CS-400
This older model CS-400 analyzer was designed for the measurement of carbon and sulfur in metals, ores, ceramics and other inorganic materials. You can keep your CS-400 analyzer in good repair with a Compass Engineering service plan.
LECO® CS-244
Now considered a legacy model, the CS-244 carbon/sulfur analyzer is still active in many labs. With proper maintenance and service parts, your CS-244 can still have years of analysis left. At Compass Engineering, our team is trained and experienced in maintaining LECO’s legacy lines.
LECO® TC-136
A legacy model designed for nitrogen and oxygen determination in inorganics, the TC-136 is still in use in some laboratories. And the engineering team at Compass can keep your TC-136 in good running order with a maintenance plan.
LECO® TC-436
If you determine the nitrogen and oxygen content for a metals lab, you are probably using the older model TC-436. While the OEM may no longer be servicing TC-436s, the team at Compass has experience keeping these analyzers in service.
LECO® TC-400
The TC-400 series nitrogen/oxygen analyzer precision measures to 2 ppm at low levels. This reliability and ease of use makes this analyzer series one of the most used. As an older model, it may be hard to find service for your TC-400. Look no further! The Compass team is ready to help your lab keep your TC-400 longer with regular service.
LECO® TN-400
The legacy TC-400 analyzer model measures nitrogen and oxygen in a wide variety of metals, refractories, and inorganic materials. Finding reliable engineering support for the regular maintenance needed for your TN-400 may have been a challenge in the past, but Compass is ready to support your lab with a service plan.
LECO® TN-500
The older model TN-500 analyzer model measures nitrogen and oxygen in a wide variety of metals, refractories, and inorganic materials. Although no longer supported for repairs by the OEM, the Compass Engineering team is ready to help you keep your equipment in tip-top shape with a maintenance plan.
LECO® TC-300
The legacy TC-300 series analyzer precision measures nitrogen and oxygen determinations. This reliability and ease of use makes this analyzer series one of the most used. It may be hard to find expert service for your TC-300. Look no further! Compass is ready to help your lab keep your TC-300 longer with regular service.
LECO® TGA601
The TGA601 is a legacy model of LECO’s automated macro thermogravimetric analyzers and is used for determining weight loss, including moisture, ash, volatile content, and Loss-on-Ignition (LOI), in various organic compounds. Some legacy models may not have OEM repair support, but Compass’s highly trained engineers can help you with the required upkeep to keep your lab equipment in service for years to come.
LECO® TGA701
Now replaced by the TGA801, the TGA 701 automated macro thermogravimetric analyzers is crucial to determining weight loss, including moisture, ash, volatile content, and “loss on ignition” (LOI), in various organic compounds. While the OEM may not support repair, Compass’s highly trained engineers can help you with the required upkeep to keep your lab equipment running.


