Ace ESP Sensors


The SRU2i provides more advanced functionality than the basic SRU.  It may be used with any of the downhole sensor options.  In addition to all the functionality of the SRU, SRU2i can provide the downhole data to additional devices via industry standard Modbus RS-232 and RS-485 ports (both optically isolated).  Another built-in interface is provided, which connects directly to the ICON industry standard motor controller, and with a suitable adapter cable, it can connect to the older generation legacy Commander/F5 series controllers.  The SRU2i also includes Ethernet and USB connectivity, user programmable relays, analog outputs and unlimited datalogging for all reading using removable SD date cards.

SRU2i supports insulation resistance monitoring to predict ESP cable and motor run life.

SRU2i provides diagnostic information to assist in trouble shooting. Transmits  and receive LEDs are associated with each of the communication ports to indicate all communication activity. The SRU2i comes in AC and DC powered versions.

Power Required:

  • AC version: 115VAC +/- 15%, 50/60Hz
  • DC version: 10VDC - 28VDC 1 Amp

Display Type:

  • 8 digit alphanumeric LED

Motor Controller Connection (Isolated):

  • iCON Series Interface. Support for legacy (F3/F5 Commander Series) controllers.

Modbus RS-485 (Isolated):

  • 3 wire standard

Modbus RS-232 (Isolated):

  • 3 wire, no handshaking required

USB Modbus (Isolated):

  • Standard USB ‘B’

Ethernet Modbus (Isolated):

  • Standard CAT5E 8 pin connector

Analog Outputs (Isolated):

  • 4 x 0-20mA User Configurable (SRU2 sources power)

Relay Outputs (Isolated):

  • 2 x Form C User Configurable 240VAC / 8 Amps

SD Datalogger:

  • Up to 32GByte (SDHC mode supported)

Operating Temperature:

  • 0°F - 158°F, -18°C to 70°C


  • 50" x 5.75" x 1.75"
  • Weight 2.0 lbs