About Satrofit

See how Satrofit open source I/O cards have been used to easily upgrade obsolete Building Management Systems in existing racks. Retrofitting these systems are quick and seamless meaning minimal downtime or your building's day-to-day activities.

Satrofit I/O Cards

Satrofit AUNC 16UI & 16UO IO cards plug directly into the BAS and Sigma UNC 696 or 796 racks and read all the pre-existing Satchwell sensors. The output cards can drive the Satchwell 8 latching relay cards.

Features:

  • The input cards have selectable digital, current and voltage inputs with status LEDs
  • Thermistors can be measured in two ranges – giving a high level of accuracy from 300 Ohms to 100K Ohms.
  • The input cards have 10 bit A/D converters and are individually calibrated to 0.25% accuracy
  • The flexible analogue outputs have up to 30mA of current and 4 off 0-20mA current regulated outputs
  • The cards can be directly connected to with the laptop based Satrofit tool allowing the sensors and actuators to be set-up and serviced by technicians who don’t have access to the master controller, for example, during pre-commissioning

Our products

SRC-AUNC-16 UI
£ 375
  • Provides 16 inputs, configurable for voltage (0 – 10V), current (0 – 20mA), or resistance (PTC and NTC thermistors) measurements in two ranges for maximum accuracy
SRC-AUNC-16 DI/TI
£ 355
  • The DI/TI card is a simplified and lower cost version of the UI card. It can still read thermistors and digital inputs but doesn’t require the setting of jumpers.
SRC-AUNC-16 UO
£ 375
  • Provides 16 outputs, configurable as voltage outputs in the range of 0 – 10V or “latching relay” digital outputs. Four of the outputs can be configured for current control, ranging from 0 – 20mA.

Satrofit Tool

Enables existing analogue and digital outputs to be controlled by a modern, web-based master controller over a Modbus RS 485 network.

Download

Contact us

Satrofit retrofit BMS solutions are managed and created by the team at Hurtwood ltd. 
Get in touch today to find out more about how our retrofit solutions can help you. 

Phone

+ 44 1249 248 117

Email
sales@hurtwood.org.uk