Limit Alarms
Process limit alarms monitor sensors or process current input signals and trip a relay output if the input exceeds a user-defined hi/lo setpoint limit. Select from AC-, DC, and loop-powered models. Configuration is easy with Windows® software, push-buttons, switches, or pots for settings depending on the series. Other cost-effective alternatives are transmitters with integrated alarms or remote I/O modules for Modbus networks with built-in trips for local alarm functions.Showing all 4 results
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801A Universal TC/RTD/mV Input Intelligent Alarm
- Thermocouple (J, K, T, R, S, E, B, N), RTD (Pt, Ni, Cu), millivolt (±100mV DC), resistance (0 to 500 ohms) input
- Single or dual mechanical relay alarm outputs
- 10-36V DC power
- Software configured
- Multi-function alarms (limit, window, deviation, rate-of-change, peak/valley detection)
- On/off controller capability
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811A, 812A: Intelligent Alarm; DC Voltage/Current Input
- ±100V or 0 to 22mA DC input ranges or 2 input channels, ±100V or 0 to 22mA DC input ranges (AC current with optional sensor)
- Single or dual mechanical relays
- 10-36V DC power
- Software configured; multi-function alarms (limit, window, deviation, rate-of-change, peak/valley detection); on/off controller capability
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822A Dual Thermocouple/mV Input Intelligent Alarm
- 2 input channels, thermocouple (types J, K, T, R, S, E, B, N), or millivolt (±100mV DC) input
- Dual mechanical relays output
- 10-36V DC power
- Software configured; multi-function alarms (limit, window, deviation, rate-of-change, peak/valley detection); on/off controller capability
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841T: DC Frequency/Pulse Input Intelligent Transmitter
- 0 to 50KHz, 0 to 65535 pulses input
- 0 to 20mA DC, 0 to 10V DC output
- Mechanical alarm relay (25V @ 5A)
- 10-36V DC power
- Software configured; pulse counter; signal averaging; optional limit alarm functions
Signal Conditioning Selection Guide Videos
Welcome to our Signal Conditioning Selection Guide Videos. As a business with many helpful products to offer, we know it can be difficult to find which one you need. This quick selection guide should help point you in the right direction. Choose which video corresponds to your power needs, and the guide will show you which Acromag modules will work with your input.