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Classified Staff Job Description

Job Code: 050924
Title: Cryogenics Technician, Senior
Pay Grade: 33
Pay Range

Purpose of Classification:
Leads the cryogenics technicians in the daily operations of the University Cryogenics Facility. The daily operations include set-up and delivery of cryogenic containers, loading and unloading, installation, repair and maintenance of equipment.

Distinguishing Characteristics:
This is second in a series of three classifications. Incumbents perform the full range of Cryogenics related duties as described below. This classification is distinguished from the Cryogenics Technician classification by lead responsibilities for day to day activities in the Cryogenics Facility. In addition, distinguished from the Cryogenics Supervisor who manages the entire operation of the Cryogenics Facility.

Example of Duties:
  • Assists in the scheduling of deliveries and client requests for repairs to facilitate efficient and effective use of Cryogenics personnel and timely delivery of cryogenics products to clients.
  • Oversees and assists with the transfer of cryogenic liquids from the large helium system or nitrogen tank to dewars and from the gas filling station to cylinders for distribution.
  • Leads, coordinates and monitors the daily work activities of Cryogenic Technicians and Trades Helpers.
  • Trains and instructs personnel in the proper usage of cryogenics systems and equipment, and ensures that proper filling techniques and safety procedures are followed.
  • Troubleshoots malfunctioning equipment including electrical wiring, installation of switches, fuses, and high-pressure plumbing for the helium compressors. Diagnoses mechanical problems of cryogenic systems and containers such as removing ice plugs, detecting leaks, fixing and/or replacing relief valves on cryogenic vessels.
  • Performs preventative maintenance on the helium liquefaction system, the cryogenics gas filling station, helium compressors, high pressure dewars, cylinders and vacuum pumps. Preventative maintenance includes changing fluids, purging excess gas and/or liquids, pre-cooling, calibrating gages, and cleaning various cryogenics systems.
  • Participates in ordering and purchasing standard stock items or cryogenics products within established procedures.
  • Sets-up and fills dewars and cylinders per customer requests, loads and delivers cryogenic products to customer locations. Performs the installation of high pressure and/or low temperature cylinders at the clients location.
  • Prepares request for supplies, computes costs and keeps records of supply inventory.
  • Operates material handling equipment such as forklifts, pallet jacks, hand trucks or dollies to move cryogenic containers or equipment.
  • Uses computerized system to generate invoices, receipts and track inventory.

Knowledge, Skills, and Abilities:
  • Knowledge of the physical properties of cryogenic liquid and gases.
  • Knowledge of mechanical and electrical principles.
  • Skill in the installation, adjustment and repair of mechanical and electrical equipment and compressors.
  • Skill in reading and understanding schematics of electrical circuits.
  • Skill in leading the work activities of others.
  • Ability to communicate effectively.

    Minimum Qualifications:
    • Completion of two year program in electronics or mechanics AND four years of cryogenics or related experience; OR
    • Six years experience working with cryogenic products and equipment; OR,
    • Any equivalent combination of experience, training and/or education approved by Human Resources.
    • Possession of a valid Arizona Class D driverís license upon employment.
    • Possession of a valid Commercial Driverís License (CDL), Class C with a hazardous materials endorsement upon employment.
    • Possession of a valid Commercial Driverís License (CDL), Class B with air brake endorsement in order to drive a 3500 Gross Weight vehicle, upon employment.
    • Possession of forklift certification.


    Revised: 07/01/2007

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