EMEC LDPHRH-mA Dual pH & ORP Controller

  • Programmable for dosing acid and/or base, and Chlorine
  • Proportional or On/Off Control for pH and ORP
  • Outputs: 1 x pH 240Vac Relay, 2 x pH Pulse, 1 x ORP 240Vac Relay, 1 x ORP Pulse, 3 x mA for pH, ORP & Temp
  • Tanks level inputs: 2 x pH, 1 x ORP
  • Other I/O: 1 x Standby I/P, 1 x 240Vac Alarm Relay O/P, 1 x RS485 O/P
  • LCD displays show measured pH and ORP (mV)
  • Manual/Automatic Temperature Compensation (for pH only)
  • Max dosing alarms
  • Optional GSM/GPRS modem or Ethernet/LAN card for remote connectivity via webserver and alarming via SMS/e-mail
SKU: EMEC LDPHRH-mA Categories: ,

Wall Mount

Variables Measured

Flow Status, ORP, pH, Temperature


Flow Switch Contact, ORP Probe, pH Probe, Standby Dry Contact, Tank Level Dry Contact


4-20mA, Alarm Relay, Optional Modbus, Pulse, Switched Relays For Optional Pumps/Valves

Remote Comms

Via Optional LAN card, Via Optional Modbus, Via Optional Modem

IP Rating