AERI Agilent / Keysight Multimeter Swap Procedure
AERI Keysight (formerly Agilent) Mulimeter (L4411A) Replacement Instructions
Rev Apr 29, 2025 -JG
- Perform Resistance Validation and 3rd Body Test prior to swap
- Note ‘old’ and ‘new’ L4411A unit serial numbers
- Disconnect power cable from back of L4411A unit in the AERI back-end. (Rest of the AERI power needs to stay ON, so that the hatch doesn’t close over the 3rd blackbody.)
- Remove the old L4411A unit
- The L4411A unit (and the two other units below it) are secured to the back-end using two square brackets. In order to be able to remove the L4411A unit:
- Loosen the top screw on the front bracket
- Remove the two screws at the bottom at the back bracket
- Remove all remaining connectors from the back of the L4411A unit, note/mark similar connectors
- Banana plugs (4)
- BNC plugs (2)
- Ethernet
- Ground wire
- There is some mechanical interference from the serial switch (blue box) near the back of the L4411A unit: Remove the ethernet and green connector (note orientation) from the serial switch
- Slide out old L4411A unit from the back
- The L4411A unit (and the two other units below it) are secured to the back-end using two square brackets. In order to be able to remove the L4411A unit:
- Install the new L4411A unit
- Loosen philips head ground screw
- Slide in new Agilent unit
- Replace ethernet and green connectors on serial switch (blue box)
- Ensure green connector is oriented correctly and mated correctly. It needs to be flush with the surface
- Replace Agilent connectors (except the power cable), including ground wire/screw
- Banana plugs (4)
- BNC plugs (2)
- Ethernet
- Ground wire
- Tighten front bracket
- Replace back bracket
- Connect power cable to the L4411A unit
- If necessary, configure L4411A unit
- If the L4411A unit is already configured with the correct IP address, then no configuration should be necessary
- (e.g. AERI L4411A = 169.254.44.11; 3rd body controller L4411A = 169.254.44.12)
- If the L4411A unit does not have the correct IP address
- Quick instructions
- Enter L4411A unit current IP address (from the Agilent front display) into a web browser (e.g. http://169.254.44.11)
- View and modify configuration
- Modify configuration
- Ensure DHCP is OFF
- Enter new IP address
- Save, OK, Yes
- Restart L4411A LAN, OK
- ?Steps in Agilent connection expert window
- Full instructions can be found in the ABB 3rd body instruction manual (p32-34)
- Note for Step 7, type in IP address shown on front of Agilent unit into a browser on the AERI computer (e.g. http://169.254.44.11)
- Quick instructions
- If the L4411A unit is already configured with the correct IP address, then no configuration should be necessary
- Repeat Resistance Validation and 3rd Body Test to ensure new Agilent unit is working