Ensure all loop power profiles match system documentation. Misaligned voltage inputs can fry low-signal interface boards.
[ Tester Source Loop ] ----( Current Injected )----> [ + Battery Terminal - ] [ Tester Sense Loop ] <---( Voltage Sampled )----- [ + Battery Terminal - ] Why the 1kHz AC Signal Matters mib yr104
Since the is discontinued, sourcing requires specialized industrial surplus vendors. Reputable sources include: Ensure all loop power profiles match system documentation
The YR104 is often found in HVAC retrofits. An old chiller with a proprietary serial protocol can be mapped to BACnet or Modbus TCP via the device’s configurable firmware. mib yr104