NITROGEN EVAPORATOR 12 POSITION

DESCRIPTION

The 12 position N-EVAP nitrogen evaporator (cat# 11155) is a compact unit that allows for up to 12 samples to be evaporated simultaneously. At each individual sample position, the gas flow can be controlled via a precision needle valve. This is ideal for the simultaneous evaporation of samples with varying evaporation end points. The sample tray has a spring tensioner which allows any test tube between 10-30 mm to be processed without any modifications to the instrument. An optional small sample holder allows samples with an outside diameter of 5-16 mm to be processed.

First introduced in 1959 as The Meyer N-EVAP, the 12 position N-EVAP (cat# 11155) was the first nitrogen dryer created by Organomation. It has proven to be an extremely durable, time tested and highly affordable member of Organomation’s N-EVAP line. These economical units provide controlled concentration of sample vials through the application of nitrogen gas within a heated water bath. The N-EVAP’s circular rotating design permits each sample to be accessible from the front of the instrument for easy insertion and retrieval. The chrome plated needle valves are individually milled from solid brass, enabling precise, uniform adjustments for your nitrogen blow down. This promotes efficient and safe sample reduction with minimal nitrogen waste.

STANDARD FEATURES

1. Nitrogen filter
2. Adjustable flow meter, 0-10 LPM
3. High pressure phthalate free tubing for safety
4. High temperature limit switch for safety
5. Dual band spring hoist assembly (except in dry bath model)
6. Precision needle valve tube assembly 
7. Needles, 4 inch x 19 gauge with chrome plated brass hub and stainless steel shaft

OPTIONS

1. 220v wiring harness (Option Code# -2) 
2. Z-Purge/positive pressure purge case (Option Code# -Z) 
3. Acid resistant coating on instrument and needles (Option Code# -RT)

SPECIFICATION:

Instrumental Name	12p N-EVAP	12p N-EVAP	12p N-EVAP
Bath Type	Water	Dry	None
Instrumental Catalog Number	11155	11155-DA	11155-O
Number of Sample Positions	12	12	12
Overall Dimension (w x d x h)	13 x 11 x 31 in 33 x 28 x 79 cm	13 x 11 x 27.5 in 33 x 28 x 70 cm	12 x 8 x 31 in 33 x 28 x 79 cm
Sample Holder Layout	Circular	Circular	Circular
Gas Manifold Layout	Single Ring	Single Ring	Single Ring
Test Tube Range (Standard Sample Holder)	10-30mm OD	10-30mm OD	10-30mm OD
Test Tube Range (Optional Sample Holder)	5-16mm OD	5-16mm OD	5-16mm OD
Gas Flow Meter	0-10 L/min	0-10 L/min	0-10 L/min
Stainless Steel Needles (Length x Gauge)	4.0 in x 19 ga 102 mm x 19 ga	4.0 in x 19 ga 102 mm x 19 ga	4.0 in x 19 ga 102 mm x 19 ga
Sample Tray Lift Mechanism	Dual Band Spring Hoist Assembly	None/Fixed	Dual Band Spring Hoist Assembly
Rotating, Leak Tight Gas Fitting	Standard	N/A	Standard
Standard Gas Input Range	20-30 psig	20-30 psig	20-30 psig
Optional Gas Input Range with Optional Pressure Reducing Regulator	30-160 psig	30-160 psig	30-160 psig
Acid Resistant Coating (Option Code -RT)	Optional	Optional	Optional
Heating Device Specs
Model Number	5585	5085	N/A
Heating Medium	Water	Aluminum Beads (Glass Beads in RT Models)	None
Inside Dimensions (Diameter x Depth)	8.5 x 4.5 in 21.6 x 11.4 cm	8.5 x 4.5 in 21.6 x 11.4 cm	N/A
Outside Dimensions (w x d x h)	13 x 11 x 7 in 33 x 28 x 18 cm	13 x 11 x 7 in 33 x 28 x 18 cm	N/A
Total Wattage	550 W	500 W	N/A
Bath Temperature Range	30-90 °C	40-130 °C	N/A
Temperature Controller Type	Mechanical Thermostat	Mechanical Thermostat	N/A
Controller Accuracy	+/- 2 °C	+/- 2 °C	N/A

MODELS

Catalog Number	Bath Type
11155	Water Bath
11155-NT	No Teflon, Water Bath*
11155-DA	Dry Bath
11155-O	No Bath

* No Teflon (-NT) units designed for PFAS analysis using EPA methods 533, 537 and 537.1.

**All “-O” models come with a base and stand assembly instead of a heated bath. These instruments are designed for evaporation procedures performed at ambient temperature.

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