Leco – Analyzer Carbon Hydrogen
Model – Truspec CHN 630100400

Full spec sheet attached

Used / Sold as is / untested / Could be used for parts / Condition unknown / Everything pictured is included / Specs based on model search

1 lot of 2

Leco – Analyzer Carbon Hydrogen
⚙️ Analytical Performance
• Measurement Ranges (for 500 mg samples):
o Carbon: 50 ppm (0.005 %) to 50 %
o Hydrogen: 200 ppm (0.02 %) to 50 %
o Nitrogen: 80 ppm (0.008 %) to 100 %
• Precision @ 500 mg:
o Carbon: 25 ppm (0.5 % RSD)
o Hydrogen: 100 ppm (1 % RSD)
o Nitrogen: 40 ppm (0.5 % RSD)
• Readability: 0.0001 ppm
• Analysis Time:
o CHN: ~4 minutes per sample
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🧪 Sample Capacity & Size
• TruSpec CHN Macro: up to 1 g
• TruSpec CHN Micro: nominal 2 mg, up to 10 mg adaptive sampling
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🔍 Detection & Methodology
• Carbon & Hydrogen: Non dispersive infrared (IR) detectors
• Nitrogen: Thermal conductivity detector (TCD)
• Combustion carried out in a resistance furnace (primary and afterburner), up to 1100 °C
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⚗️ Gas Requirements
• Carrier Gas: Helium (99.99 %), 35 psi ±10%
• Combustion Gas: Oxygen (99.99 %), 35 psi ±10%
• Pneumatic: Oil and water free compressed air, 40 psi ±10%
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🗄️ Autosampler & Throughput
• Stackable autosampler: 30-position, expandable to 120 samples
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📐 Dimensions & Power
• Analyzer: 27″ W × 31″ H × 28″ D (69 × 79 × 71 cm), ~250 lb (113 kg)
• Optional Oxygen Module: 15″ W × 12″ H × 22″ D
• Electrical:
o Determinator: 230 V, 50/60 Hz, 12 A (~9,500 BTU/hr)
o Oxygen Add On: 230 V, 50/60 Hz, 18 A (~14,200 BTU/hr)
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🧰 Software & Compliance Features
• Windows-based control
• Supports 21 CFR Part 11 compliance
• Real-time diagnostics, LIMS integration, automated leak checks
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✅ Summary
The TruSpec CHN analyzer delivers fast (~4 min), high-precision CHN analysis for micro to macro sample sizes, with robust automation, IR & TCD detection, and flexible gas handling. It’s a reliable workhorse for routine organic elemental analysis.


Leco – Analyzer Sulfer

Model – Truespec S 630100700

Used / Sold as is / untested / Could be used for parts / Condition unknown / Everything pictured is included / Specs based on model search

1 lot of 2


Leco – Analyzer Sulfer
🧪 LECO TruSpec S (Sulfur) Elemental Analyzer Specifications
Analytical Performance
• Elements measured: Sulfur (SO₂ via IR detection); can be configured in CHNS variants
• Analysis time: ~4 minutes per sample when run as part of CHNS configuration

Sample Size & Precision
• Nominal micro sample size: 2 mg (range ~1–10 mg)
• Detection range (500 mg equivalent standard):
o Carbon: 50 ppm–50 %, Hydrogen: 200 ppm–50 %, Nitrogen: 80 ppm–100 % (Sulfur not specified separately; uses IR detector similar to Carbon/Hydrogen ranges)
• Precision (RSD) for CHN components @ 500 mg: Carbon 0.5 %, Hydrogen 1 %, Nitrogen 0.5 % — Sulfur precision not explicitly stated
• Readability: 0.0001 ppm (instrument-level resolution)

Detection Methods
• Sulfur detected via independent non-dispersive infrared (IR) after combustion produces SO₂
• CHN components measured with optimized IR and Thermal Conductivity Detectors (TCD) for Nitrogen

Combustion & Furnace Details
• Furnace type: Resistance furnace up to 1,100 °C
• Combustion pathway: Sample combusted → after-burner → scrubbers → detectors

Gas Requirements
• Carrier gas: Helium, 99.99 %, 35 psi ±10%
• Combustion gas: Oxygen, 99.99 %, 35 psi ±10%
• Pneumatic: Clean, oil-/water-free compressed air, 40 psi ±10%

Autosampler & Throughput
• Stackable autoloader: 30-position, expandable to 120 samples