Rugged instrumentation for reliable measurement and control

Applications By Industry

SPA2: Programmable Current/Voltage and RTD/Thermocouple Limit Alarm Trips

SPA2 Low Level The universal SPA2 Programmable Limit Alarm Trips provide on/off control, warn of unwanted process conditions, alarm on rate-of-change and provide emergency shutdown. Very versatile, they accept a signal input from transmitters, temperature sensors and a wide array of other monitoring and control instruments including 23 RTD Types, 9 thermocouple types, resistance and potentiometer devices, direct millivolt sources, and current and voltage signals.

The 4-wire (line/mains-powered) SPA2 provides two or four independent and individually configurable alarm relay outputs when a monitored process variable falls outside of user-set high and/or low limits. 

Features include:

  • Universal plant standard with programmable input/output parameters, and “Universal” DC or AC power input, there’s no need to stock dozens of different alarm trips
  • 20-bit input resolution
  • Site- and PC-Programmable
  • Provides up to 5 years between scheduled calibrations
  • Programmable input/output parameters, and “Universal” DC or AC power input, there’s no need to stock dozens of different alarm trips
  • Large 5-digit process and status readout
  • Combined alarm trip and transmitter
  • Isolated and RFI/EMI protection

 

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