Top 5 Service Department Maintenance Tips

Environics frequently receives calls and emails enquiring about the best way to maintain its dilutors and mixers. There are a number of crucial things that you can do to keep the unit operating in top shape. They will also help to extend the life of your unit.

Check Out the Top 5 Maintenance Tips from Environics Service Department

1. Be Sure to Replace the Consumables

For the majority of units, this is the fan filter. It can be cleaned and replaced or reused. For Zero Air Generators, it is vital to substitute the media and filters on a regular schedule and to reflect upon the environment one is in and the amount of use the unit gets when fixing this schedule. Customers can check out Environics’ recommendations regarding that. It is crucial to regularly check that the drain is functioning and is free of obstructions as well.

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2. Do Not Leave Gases Connected When the Unit is Inactive

If the unit is not used for a length of time, it is best to disconnect the cylinders, purge the unit with nitrogen or air, and then cap the inputs. It is also recommended to leave capped unused inputs even during use.

3. Ensure Input Gas Lines Do Not Contain Moisture

Moisture is the enemy of a gas mixer/dilutor. Ensure that dry clean gases are used and that there is no moisture in the lines.

4. Check and Adjust MFC Zeroes

Over time, the zeroes on user’s MFCs can differ. For best accuracy between yearly recalibrations, check these intermittently and alter back within specification. For the comprehensive instructions, check the manual for the unit. If it is time for recalibration or if zeroes drift considerably between checks, contact Environics’ service department for assistance.

5. Purge the Unit of Stagnant Gas Often

Units should be purged with air or nitrogen to flush the system between the blending of gases which may be reactive, or clean the system after the usage of gases which will present probable risks if left in the system because of corrositivity or toxicity. This can be performed either by connecting gas to all inputs and flowing the MFCs at their maximum flow rate in flow mode or through the Purge mode. This will flush any gas residue out of the solenoid valves, mass flow controllers, tubing, and blend chamber. From 2018, Environics’ standard Series 4000/4020/4040 will possess the purge option to allow for easy maintenance. Current units can be retrofit to make the most of this option as well. More information can be obtained about this option from the service department.

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Bonus Tips!

Environics recommends that users use a UPS (uninterruptible power supply) to protect the unit.

It also suggests ensuring proper ventilation for the unit, especially the zero air generator.

Environics, Inc

This information has been sourced, reviewed and adapted from materials provided by Environics, Inc.

For more information on this source, please visit Environics, Inc.

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