N-EVAP, Analytical Nitrogen Evaporators for Sample Concentration

N-EVAP
Analytical Nitrogen Evaporators for Sample Concentration

New 45 Position N-Evap
Catalog No. 11645-RT

24 Position N-EVAP
Catalog No. 11250-RT

Features:
Five models available in 6,12, 24, 34 and 45 positions. Compact size takes minimal hood space. Water bath provides gentle heat. Circular stand turns so each sample is accessible from the front. The larger models have a band spring hoist assembly for easy raising or lowering into the bath. Accommodates samples in test tubes 10 to 29 mm diameter. Volumes from 1 ml to 50 ml. A gas flow meter with valve, controls and indicates gas consumption. A needle valve adjusts gas flow at each position. Stainless steel 4 inch x 19-gauge needles standard. All metal parts are made of stainless steel, nickel chromed brass or anodized aluminum. Plastic parts are laboratory grade and will withstand contact with common organic solvents.

**System Specifications**
No. of Samples	6	12	24	34	45
Instr. Cat. No.	11106	11155	11250	11634	11645
Bench space (w x d x h)	13x11x31 in (33x28x79 cm)		16x15x33 in (41x38x84 cm)	24x19x34 in (61x48x86 cm)
Test tube size range	10-56mm	5 to 29 mm	10 to 29 mm	10 to 29 mm
Gas flow meter range	0 to 5 lpm		0 to 10 lpm	0 to 20 lpm

**Bath Specifications**
Model Number	5085	8125	14165-C
Inside Dia. (I.D. x depth)	8.5x4.5 in (21.6x11.4 cm)	12x4.5 in (30.5x11.4 cm)	16x4.5 in (40.6x11.4 cm)
Outside Dim. (O.D. x height)	13x12x7 in (33x30x18 cm)	18x16x7 in (46x41x18cm)	24x19x6 in (61x48x15 cm)
Total watts	500 W	800 W	1400W
Voltage	120 or 240 V
Hertz	50 or 60 Hz
Water bath temperature range	30° to 90° C
Accuracy	±2°C
Dry bath temperature range	40° to 130° C
Accuracy	±.5°C

The instrument consists of a base and stand assembly, sample holder and gas distribution system. Test tubes are held in place by a spring-loaded sample holder and support tray. Each position is numbered. The gas at 5 to 10 psig passes through an adjustable flow meter to the distribution manifold. Flexible tubing leads to valve-tube assemblies at each position. Depending on the test-tube size and solvent volume they can be individually raised or lowered to the correct height. Needles or glass pipets blow gas onto the surface of the solution resulting in rapid evaporation of the solvent. All materials used are laboratory quality and can withstand contact with organic solvents. Acid resistant models are available for corrosive applications.

The round, stainless steel water bath is thermostatically controlled and will accurately maintain water temperature from 30° to 90° C. Optional dry baths filled with glass or aluminum beads will operate from 40° to 130° C. A high temperature limit switch is installed for safety. An electrical GFCI plug is optional. An intrinsically safe, purged case is also available as an option. The bath is UV/CUL approved for laboratory use.

Options:		Suffix:
•	Pasteur pipet fittings replace Luer fittings & needles	(-P)
•	Acid resistant coating for corrosive environments	(-R)
•	Dry baths with aluminum beads for water-free applications or high temperatures to 130° C	(-DA)
•	Phthalate free tubing is now standard on all N-Evaps
•	Intrinsically safe, purged bath case	(-Z)
•	240 volt electrical wiring and plug	(-2)