NEPS1900 Rack Mounted

Download NEPS1900 Racked BrochureThe NEPS1900 RACK MOUNTED is the latest development for improving the effective and efficient use of dry nitrogen purging for electronic, optical, high voltage, laser systems and equipment requiring gas drying and inhibiting of oxygen.

High humidity and water vapour can have a deleterious impact on the use, operation and long-term reliability of instruments and systems.


Key Features & Benefits

  • Fits Standard 19 inch Racking
  • Easy to Use Single Connection Purging
  • Dewpoint and Pressure Readout
  • Remote Dewpoint Sensing Option
  • Portable and Robust
  • User Programmable
  • Automatic Purging Operation
  • Dewpointstat Gas Control
  • Dewpoint Display from +20°C to -80°C
  • Maintainable Online
  • NATO Approved

The Complete Purging System

The NEPS1900 RACK MOUNTED is designed to maximise the dry gas purging process for humidity removal and oxygen inhibition with a host of capabilities and functionality for effective and efficient control during the purging operation.

Easy Operation

The NEPS1900 RACK MOUNTED is fully self-contained. Simply connect a dry gas source to the inlet connection and the equipment to be processed to the purge connection and the NEPS1900 RACK MOUNTED is ready to operate.

Economic Gas Use

One of the NEPS1900 RACK MOUNTED benefits is its use of the purge gas used for purging. By using a single pipe connection the purge gas is controlled and dispersed throughout the instrument or system being purged. During the depressurisation phase of purging the purge gas is isolated.

User Friendly

The NEPS1900 RACK MOUNTED has easy to use selectable programming which can be set to view process control values and display dewpoint measurements in ºC or ºF with pressure in Kpa or psi. Highly visible liquid displays provide constant information and readouts during the operation and use of the NEPS1900 RACK MOUNTED.

Equipment Leak Testing

The NEPS1900 RACK MOUNTED comes with a selection of four in built leak testing capabilities to verify the sealing standard of the equipment to be purged. Pressure testing can be conducted at pressures from 10.3 Kpa (1.5 psi) to 34.4 Kpa (5.0 psi). Pressure leakrate display resolution is 0.01 psi.

Gas Quality Testing

The dryness of the gas is important to the effectiveness of the purging operation and the NEPS1900 RACK MOUNTED dewpoint monitor can be used to check the dryness of the gas prior to commencing the purging operation.

Universal Voltage

The NEPS1900 RACK MOUNTED can be operated from global country voltages and frequencies ranging from 100 to 230 VAC at 50-60 Hz.

Single Connection Purging

Traditional conditioning with dry nitrogen, gas or air depends on the flow of gas from an entry connection to an outlet port. In this mode the gas will follow the simplest and easiest path to the outlet connection. This can often lead to “pockets” of unconditioned gas.

Using NEPS1900 RACK MOUNTED the mode of operation changes to a more efficient single connection purging process which also uses a choice of three selectable pressure cycles to ensure the dry gas influences all the space volume within an equipment.

During the purge process the NEPS1900 RACK MOUNTED monitors the pressure. When the pre-selected setting is achieved the supply gas is isolated and an internal control valve allows the gas to flow to the exhaust port where the dewpoint of the mixed air/gas is measured. The purging process then continues until the desired dewpoint protection has been achieved.


Useable Gases Air, Nitrogen, SF6, Helium, Argon
Selectable Pressure Ranges 10.3 Kpa (1.5 psi)
17.2 Kpa (2.5 psi)
34.4 Kpa (5.0 psi)
Display Range Pressure 0 to 34.4 Kpa (0-5.0 psi)
Display Range Dewpoint (Selectable)
+20ºC to –80ºC dewpoint
+68ºF to –94ºF dewpoint
Resolution 0.1ºC dewpoint
Accuracy +/- 2ºC dewpoint
Data Output Pressure 0 – 5 Volts
Data Output Dewpoint 0 – 5 Volts
Power 100-230 volt 50-60hz
Power Consumption 3 amps
Dimensions To fit standard 19 inch Racking
Weight 6 kilograms
Operating Temp -10ºC to +50ºC
Storage Temp -50ºC to + 65ºC
Proof Pressure input 136 Kpa (20 PSI)
Flowrate (typical) 20 litres per minute
Optional extras See NEPS Accessories
Order Code N1900

Leave A Reply