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Quick Start Guide for

 

Pro Trimix Helium/Oxygen Mixture Analyzer 

Thank you for purchasing Nuvair’s PRO TRIMIX Helium/Oxygen Analyzer. This Quick Start 
Guide describes the steps to successfully install, calibrate and use your new instrument. This 
guide covers both the wall-mount and portable units with and without oxygen analysis. For full 
details on the use and maintenance of your new instrument please refer the Users Manual. 

Components 

The PRO TRIMIX Analyzer includes: 

 

Analyzer 

 

6 VDC Power Adapter (optional for portable model) 

 

(Optional) R-33D1 high output micro-fuel cell oxygen sensor  

 

3/16 vinyl sample inlet tubing (portable model only) 

 

Batteries (portable model only) 

 

Sample adapters 

 

Instruction Manual 

Startup 

Getting your unit operational: 

1.

 

Install the (optional) R-33D1 Micro-Fuel Cell sensor  

2.

 

Install the batteries (portable model) or AC power adapter on the 

      wall mount unit. 
3.

 

Calibrate the Instrument  

4.

 

Connect to gas sample 

Installing the Sensor

 

1.

 

Turn off power if batteries are installed. Remove the 
fasteners that secure the front panel. 

Caution:

 The electronic components used in this device 

are sensitive to static discharge. Before removing the 
front panel ground yourself by touching a metal object 
such as facet. 

 

(

Portable unit

) Remove front panel.  

 

(

Wall mount unit

) Rotate the front panel down 

90 degrees to expose connector J1. 

2.

 

Remove the sensor from its packaging and check that 
the o-ring is properly seated.  

3.

 

Install the Micro Fuel Cell oxygen sensor by 
screwing it into the sensor block clockwise as shown. 

4.

 

Connect the sensor to the matting connector J1 as shown. 

5.

 

Replace the front panel and secure with fasteners. 

Battery installation 

Using a screwdriver loosen the two captive screws holding the battery compartment door. Install the 
batteries observing proper polarity. Re-install the battery compartment door and check the batteries by 
moving the ON-OFF switch to the BATT test position. The Oxygen display should show a value of about 
120. Readings below 100 indicates the batteries need to be replaced. 

Nuvair- 

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