Why Install the IMCW2 Micro Corrector Head?

If you’re looking for accurate gas metering with both pressure and temperature compensation, the IMC/W2 Micro Corrector is your best choice. Unlike standard CTR (Counter) models that don’t account for pressure or temperature fluctuations, the IMCW2 ensures precise readings.

With the optional Windows USB User Terminal Software and IMC-to-PC Programming Cable, you can unlock additional features like parameter adjustments, data logging, and alarm monitoring.

To put this into perspective, a gas meter with a base rating of 3,000 cubic feet at 5 PSIG line pressure would actually measure 3,941 CFH with a pressure correction factor of 1.317. This is why pressure correction is essential for accurate billing.

Where to Buy the IMCW2 Micro Corrector Head

You can purchase both the Conduit and Circular versions, along with all required accessories, directly from our online store.

Now, let’s get to the installation process.

What’s Included in the IMCW2 Micro Corrector Kit?

Your kit comes with:

• Installation Handbook

• Three M4 x 20 cup fixing adjustment screws (235748-1)

• Four 3mm hex screws

• Four stand-off spacers

• 3mm hex wrench (Allen Key)

• Calibration Certificate

• 4” Buna-A O-ring seal (013491-000)

Step 1: Preparation

Before installation, configure the correct meter size and upload the settings to the IMCW2 Micro Corrector using the User Terminal Software (MCUT) and IMC-to-PC Programming Cable.

Installing the Software:

• The MCUT software is compatible with Windows-based systems only.

• If your computer lacks a serial port, use a USB-to-Serial 9-pin adapter (ensure compatibility with the latest Windows drivers).

Selecting the Meter Size:

• Use MCUT software to configure the correct meter size. By default, the factory sets these up for a 3M meter.

• The software also allows for data logging, alarm setup, pulse output adjustments, and unit conversions.

Step 2: Installing the IMCW2 Corrector Head

1. Shut Off the Gas Line

Ensure safety by turning off the gas supply before installation.

2. Remove the Existing Counter Head

• Use a 5/32” hex key to unscrew the four hex screws securing the aluminum counter ring.

• Remove the three 3mm screws on the instrument cup flange with the included hex key.

• If needed, use a flat-head screwdriver to carefully separate the cup flange.

Check the O-Ring Placement: Ensure the black O-ring is installed in the outer groove of the mounting flange.

3. Remove the Pressure Seal Plug

• Using a 1/4” hex wrench, remove the orange Pressure Seal Plug (P/N: 012261-005) where the pressure transducer will be installed.

Step 3: Installing the Sensors

1. Lubricate and Install the O-Ring

• Apply a light coat of multi-purpose lithium grease to the O-ring before installation.

• Important: As of 2025, the O-ring color has changed from orange to black.

2. Insert the Three Sensors

• Pressure Sensor: Use a 5/8” wrench head to secure the pressure sensor into its designated bore.

  • Ensure it has a black O-ring and is tightened properly to prevent leaks.

• Thermocouple: Insert it all the way in.

• Magnetic Pickup (061749-000): Insert it into the magnet well, again, all the way. Rotating back and forth makes it easier.

UPDATE 1/15/26: The newer Wiegand Magnet Pickup Sensor and Thermocouple Temperature Sensor look like this. Depth markers have been removed.

Step 4: Finalizing the Installation

• Position the IMCW2 Micro Corrector Head onto the cup flange.

• Secure it using the three 3mm head screws and torque them to 15-20 in-lbs.

• Adjust the display if needed by loosening the M4 x 20 cup fixing adjustment screws, rotating the unit, and re-tightening. Careful not to twist the wires.

That’s It!

Congratulations! Your IMCW2 Micro Corrector Head is now installed and ready to provide accurate, pressure- and temperature-compensated readings.

Order Your IMCW2 Micro Corrector Today

Get your IMCW2 Micro Corrector and the Software Connection Kit from our online store.

For additional information, visit the official Dresser Utility Solutions website or explore more of our products at processvalve.com.

If you have any questions, leave a comment below!