Model E*

The Leak Test Instrument – Economy package is designed to offer you all the benefits of ATC’s Micro-Flow Technology at market compatible price.

*Note: Production of the Models E and VE has discontinued, and they are no longer being offered for new orders. ATC will continue to support current systems installed in the field. Please review the Model E2, VE2 and E-PDQ as substitutes offering similar capabilities for your application. Contact ATC with any questions regarding the phase out of the Model E and VE.

Product Usage

  • Leak Testing under pressure (max. 160 psig)
  • Leak Rates of 0.1 cc/min and higher
  • Small to medium sized parts


All products ship fully calibrated. No daily calibration required.

Product Specifications

Dimensions & Access:

  • 12”W, 11.5”H, 12”D (Does not include connectors & fittings)
  • Expansion tank and pressure regulators are externally mounted


  • Dry, clean gases: air, nitrogen
  • For other gases, contact ATC

Applicable Micro-Flow Sensors:

Connections, I/O, & Power

  1. Pneumatic connections:
    Test port on side of instrument
    Air supply: ¼”Swagelok
  2. RS232 Serial Interface
  3. Digital Inputs: 5 VDC, NPN Opto-Isolated for start, stop, type, pressure switch, verify
    Digital Outputs: 30 VDC-20 mA, NPN,
    Opto-isolated for pass, fail, clamp, test type, exhaust and custom
    Analog outputs: single channel, 0-5 VDC pressure control
  4. Power Supply:
    220VAC-50Hz (optional)

Connection Layout:

Model E ConnectionsClick image to enlarge.