Leco TruSpec N 630-1

Listing description

Leco TruSpec N Nitrogen Determinator

The TruSpec N is used to determine nitrogen in many organic matrices. The system is based on the Dumas method of combustion, and provides a result within four minutes for all elements.

There are three phases during an analysis cycle: purge, burn, and analyze. In the sample-drop purge phase, the encapsulated sample is placed in the loading head, sealed, and purged of any atmospheric gases that have entered during sample loading. The ballast volume (zero volume at this point) and gas lines are also purged.

During the burn phase, the sample is dropped into the primary furnace (950 C) and flushed with pure oxygen for very rapid combustion. The products of combustion are passed through the after-burner furnace, furnace filter, pre-cooler, and thermoelectric cooler before collecting in the ballast volume.

In the analyze phase, the combustion gases in the ballast become homogeneous by means of passive mixing. A series of infrared detectors then measure the evolved gases for carbon and hydrogen. In addition, a 3 cc aliquot is captured in a loop before the ballast piston is forced down to evacuate the ballast. The sample aliquot gases are swept through hot copper to remove oxygen and change NOx to N , Lecosorb and Anhydrone to 2 remove carbon dioxide and water, and a thermal conductivity detector to determine nitrogen. An optimized detector is used for each element—ensuring a total analysis time of less than four minutes.

The final result is displayed as weight percentage or in parts per million as determined by the operator. Results can be corrected on a moisture basis, and for % total protein.

The key to optimal performance of this instrument is the reliable autoloader (no mechanical motors), robust combustion tube (no co-mixing of combustion and carrier gases, ensuring 100% oxidation), and an efficient ballast/aliquot dosing system that significantly reduces cost-per-test and overall analysis time.

Instrument Range @ 500 mg

Carbon 50 ppm or 0.005% to 50%
Hydrogen 200 ppm or 0.02% to 50%
Nitrogen 80 ppm or 0.008% to 100%

Precision Range @ 500 mg

Nitrogen 40 ppm or 0.5% RSD†

Readability

0.0001

Analysis Time

4 minutes

Sample Size

up to 1 gram

Detection Method

Nitrogen Optimized, Low-Drift Thermal Conductivity (TC Cell) Detector

Gases Required

Carrier
Helium (99.99% pure)@ 35 psi ±10%
Combustion
Oxygen (99.99% pure)@ 35 psi ±10%
Pneumatic
Compressed air, source must be oil and water free; 40 psi ±10%

Furnace

Resistance furnace; both primary and afterburner; up to 1050 C

Autoloader

30 position (stackable to 120 samples)

PC (Computer); External

Dell Optiplex 755 with Microsoft ® Windows XP
20" Wide-Screen Flat Panel Monitor (w/ center speaker)
Keyboard
Optical mouse

Dimensions

Width 27 inch (69 cm)
Height 31 inch (79 cm)
Depth 28 inch (71 cm)

Instrument Weight

250 lb. (113 kg)

Electrical Power Requirements

230 V~ (+5%/-10%), 50/60 Hz, 12 Amps

Accessories

Instruction Manual
Leco Software Bundle
Leco TruSpec Version 2.20 Software
Leco Corporate Video
Leco Literature Binder International
Truspec Service Video (Trouble Shooting & Maintenance)
TruSpec Service Video (Operation Concepts)
TruSpec Service Video (Routine Maintenance)
Software Registration Dongle

Consumables (over $4,000 value)

Leco Furnace Reagent 501-609-HAZ 100g (NEW)
Leco Magnesium Oxide 502-359 200g (NEW)
Leco LecoSorb 502-174-HAZ 500g (NEW)
Leco Alumina Oxide Pellets 502-188 200g (NEW)
Leco Quick Caps Medium 502-382 400 pcs (NEW)
Leco Tin Capsules 502-040-100 Content: 1000 (1 90% full, 1 75% full)
Leco Magnesium Perchlorate 501-171-HAZ 1lb (NEW)
Leco Copper Sticks 502-304 100g
(NEW)
Leco Large Tin Foil Cups 502-397-400 400 pcs (60% full)
Leco Small Tin Foil Cups 502-186-100 1000 pcs (90% full)
Leco EDTA Calibration Sample 502-092 50g (90% full)
(5) Leco Copper Sticks 502-844 100g (NEW)
(16 individual) Leco Porous Crucibles 614-961-110 (NEW)
(7) Leco Tube U Furnace Dials 619-065 (NEW)
(4 individual) Leco plastic Tubes 537-103-144 (NEW)
(4) Leco Tube Lance U Quartz 616-146
(NEW)
(4) Leco Reagent Tube glass Boro 617-548 (NEW)
(5) Leco Quartz Catalyst Tube 619-154 (NEW)
Leco Glass Reagent Tube 619-268 (NEW)
(14 Individual) Leco Gaskets 778-120 (NEW)
(12 Individual) Leco Gaskets 778-116 (NEW)
(28 Individual) Leco O-Rings 616-138 (NEW)
Leco O-Ring 763-379 (NEW)
(2 Individual) O-Rings Leco 601-442 (NEW)
(3 Individual) O-Rings 765-976 (NEW)
(25 Individual) O-Rings 772-269 (NEW)
(10 Individual) O-Rings 774-253 (NEW)
(30 Individual) 15" Quartz Wool Strips 608-379 (NEW)

Condition:
Very nice, very clean condition with very little wear

Functionality:
Fully functional (Will require pneumatic, Helium, and Oxygen supplies for installation)

This equipment is located in US