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You are here: Home / Lessons / Step 4: Connecting the Electrode Cable to the pH Meter

Step 4: Connecting the Electrode Cable to the pH Meter

Setting up a Rudolph Research Automation System Section 1 : Metrohm pH Electrode Setup Step 4: Connecting the Electrode Cable to the pH Meter

Step 4. Connecting the electric cable to the pH meter.

Attaching the electrode to the meter is quick and easy.

All connection ports are located on the back of the device.

Locate the USB port on the back of the meter.

Take the largest gray cable and firmly plug it into this port.

Find the temperature points located just to the right of the AC port.

Insert the red wire into the red temperature port.

Insert the black wire into the black temperature port.

Connect the 12 volt DC cable into the port located all the way to the right of the instrument.

For the final connection, attach the USB to serial cable to the ten mil modem cable.

Next, connect the non modem cable to the back of the instrument.

It’s important to use the non modem cable because it ensures proper communication
by matching.

Transmit to transmit and receive to receive as specified by the manufacturer.

Ensure all connections are secure before proceeding to the next step.

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Copyright © 2026 Rudolph Research Analytical

  • Home
  • Products
    • Density Meters
      • DENSITY METER – PORTABLE DDM29
      • Density Meter DDM 2909
      • Density Meter DDM 2910
      • Density Meter DDM 2911
      • Density Meter DDM 2911 PLUS
      • Density Meter Sample Loading Options
    • Refractometers
      • REFRACTOMETER – PORTABLE J27
      • J47
      • J57 VT
      • J157 PLUS
      • J257
      • J357
      • J457
      • Contact Lens Refractometers
    • Polarimeters
      • Autopol I
      • Autopol II
      • Autopol III
      • Autopol IV
      • Autopol V
      • Autopol V PLUS
      • Autopol VI
    • Saccharimeters
      • Autopol IZ & IIZ Saccharimeters
      • Saccharimeter Autopol 589
      • Digital Saccharimeter Autopol 880 & 880T
      • Saccharimeter Autopol 880 PLUS & 880T PLUS
      • Saccharimeter Sample Cells
      • Saccharimeter Specifications
    • Automation
      • Autoflex® R817
      • AutoFlex® R827
      • AutoFlex® R837
    • AlcoTest-RI®
      • Distillery Financing
    • VeriLinkRx Hospital Drug Diversion
    • Octapol®
      • Octapol®
      • Octapol® Red
      • Octapol® Black
    • Rudolph Standards Lab
  • Resources
    • Service + Maintenance
    • White Papers
    • Videos
    • Technical Bulletins
    • Definitions
  • Quality – Accreditations
  • Testimonials
  • Rudolph Research – General Info
    • About Us
    • Articles
    • Trade Shows
    • Press Releases
    • Service + Maintenance
    • Customers/Industries
  • Contact Us
    • Distributor Locator
    • Contact Service
    • Part Order/Quote Request
    • Request Information
    • Rudolph Brazil
    • Rudolph Germany
    • Rudolph Japan
    • Rudolph Turkey
    • Careers
    • Open Positions
  • Videos
  • Rudolph Standards Lab
  • Shop
    • Cart
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