The VICI DBS ® NM Plus Rack instrument combines the reliability of the hydrogen generator with an optional zero air generator into a 19” rack. The generator can be installed in any suitable 19” static or mobile cabinet. This simple but effective instrument can supply all your FID gas and carrier gas requirements. Designed as a hazard free alternative to high pressure cylinders, all that is required is deionized water, compressed air and a standard electrical supply for weeks of continuous operation. Utilizing our proprietary Proton Exchange Membrane (PEM) inside a 100% titanium cell provides superior generator performance and cell life. The unique high pressure permeation membrane drying system eliminates the requirement for desiccant cartridges and the associated downtime and cost. Innovative software control allows unrivaled operational performance and safety as well as the additional options of auto water feed, remote networking and cascading for built in redundancy. With a maximum output capacity of 1350 mL/min, one generator can supply up to 33 FIDs. The compact design allows the generator to be installed directly in the laboratory eliminating the requirement for long gas lines and guaranteeing the delivery of high purity gas to your instrument

A sophisticated control system connected to an easy to use touch screen control continuously monitors vital operating parameters to ensure a safe and consistent performance. Built in sensors will shut the generator down if internal/external leaks are present, contaminated water, low water or over pressure. This is why the VICI DBS generators meet the strict safety guidelines to be certified for CE, FCC and MET (CSA and UL compliant).

Compressed air is prefiltered then purified using a state of the art combined heated catalyst module. The resultant air is free from total hydrocarbons to ​<0.1 ppm, making it ideal for all FID applications. These levels guarantee a low signal to noise ratio, ensuring a flat stable baseline.



▪︎ Produces a continuous supply of hydrogen & zero air
▪︎ 19” rack housing
▪︎ On-demand supply 24/7
▪︎ H2 Flow rate: 100 to 1350 mL/min - zero air flow rates up to 5 L/min
▪︎ H2 Purity: +99.99996% zero air purity, 0.1 ppm of hydrocarbons
▪︎ Pressure: 11 barg (160 psig)
▪︎ Proprietary 100% titanium cell technology
▪︎ Unique permeation membrane drying system
▪︎ USB connectivity 
▪︎ Easy to install, operate and maintain


▪︎ Eliminates dangerous high pressure cylinders
▪︎ Ideal for all 19”cabinet applications
▪︎ Removes the logistics, inconvenience, downtime and costs of a cylinder system
▪︎ Ideal for all GC detector applications
▪︎ Exceeds the requirements for the most demanding GC applications
▪︎ Superior hydrogen production with reliable long life cell 
▪︎ Minimal maintenance
▪︎ PC monitoring
▪︎ Peace of mind
▪︎ Improve your laboratory work flow and productivity




▪︎ Process GC analyzers detector fuel, oxidant gas
▪︎ Emissions test analyzers fuel gas, oxidant gas
▪︎ Stack gas analyzers fuel gas, oxidant gas


▪︎ On-board gas supply for mobile laboratories

Technical specifications

Models & Specs NM PLUS 100 Rack  NM PLUS 160 Rack NM PLUS 250 Rack NM PLUS 300 Rack NM PLUS 450 Rack NM PLUS 500 Rack NM PLUS 600 Rack NM PLUS 1000 Rack NM PLUS 1350 Rack
Flow mL/min 100 160 250 300 450 500 600 1000 1350
Purity +99.99996%
Dew point at 7 barg (100 psig) -73 °C (-103 °F)
Outlet pressure barg (psig)  1.4 to 11 (20 to 160)
Technology PEM (Proton Exchange Membrane) - 100% Titanium cell
Drying system No maintenance cold dual dynamic regeneration system
Deionized water quality Minimum < 1 micro S/cm @25ºC - 1 Mohm-cm@25ºC - ASTM II Recommended < 0.2 microS/cm @25ºC - 5 Mohm-cm @25ºC - ASTM II
Extwater tank (liters) External 10 liter bottle and internal pump
Safety Automatic shut down - internal/external hydrogen leak, overpressure and low water
Display Touch screen with operating parameters, system status and safety alarms
LED indicators Power on/off, system ready, errors
Interface USB mod A
Electrical supply 110-120V 60Hz / 220-240V 50Hz
Power consumption (watts) 90 115 125 150 180 200 300 400 500
Dimensions mm (inches) 19” rack W - 3U H - 500 D (19.6)
Weight kg (lbs) 19 (41.9) 21 (46.2) 21 (46.2) 22 (48.5)
Shipping dimensions mm (in)  720W x 375H x 565D (28.3W x 14.7H x 22.2D)
Shipping weight kg (lb.) 23 (50) 25 (55) 25 (55) 26 (57)
Operating temp °C (°F)  15 to 35 (59 to 95)
Outlet connection  1/8" Compression
Certification CE, FCC, MET (UL and CSA compliant)
Auto water refill Continuous water feed from an external water supply
External water tank 19” rack 5 liter (2U) or 10 liter (3U) tank
Cascading Up to 10 units – built in redundancy for guaranteed up-time
Interface RS232/RS485, external contacts, PC control and intranet
Zero Air module 1.8 or 5 L/min


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