xxMWD Interface Simulator Box

The xxMWD Interface Simulator Box allows the user to simulate downhole conditions such as flow and gamma. The box also generates the 4-20mA pulses as would be provided by the standpipe pressure transmitter for feeding into a mud pulse receiver or DRT/RFD. The Simulator Box allows you to simulate a complete downhole system on your bench.

image simulator-box


  • Simulate a deployed downhole tool on your bench
  • Use the built-in XL50 to communicate with the tool via your PC
  • Feed a simulated 4-20mA MPT pressure signal into your DRT/RFD for testing surface gear
  • Allows for simple real time testing, updating and configuration of surface system without needing a full MWD string and pulser


  • Provides an interface between your tool and your PC via the built-in XL50 Surface Translator
  • Simulate flow and gamma as if you were downhole
  • Control simulated pulse amplitude
  • Generate a 4-20mA mud pulse telemetry signal derived from your connected tool string while simulating flow on/off conditions


Dimensions: 17.5”(w) x 12”(d) x 7”(h)

Power Source: 90 - 250VAC, 50/60 Hz

Simulated MPT Output Signal: 4-20mA


Temp Rating: 85˚C (surface environment)

Switches: System On/Off, Tool Power On/Off, xxBus On/Off, Flow, Flow Sim, Gamma Sim,
Pulse Amplitude


Indicators: Power, Pulser, Tool Power

Connectors: Receiver (4-20mA MPT Signal), DB9 Serial Port for PC Connection, Tool Bus Connector

Test Points: Tool current measurement