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Action PAK® AP1280 & AP1290 Thermocouple Input, Field Configurable Limit Alarms

Provides Relay Contact Closures at a Preset Temperature Input Level.

Features:

  • Field Configurable Input Ranges for E, J, K, R, S and T Type Thermocouples
  • Exclusive "Dynamic Deadband" Prevents False Trips
  • Burnout Detection>
  • Setpoints Programmable HI or LO
  • Selectable Failsafe/Latching Operation
  • Selectable 120/240VAC Input Power(9 to 30 VDC Available)

AP1280 (Single Trip, DPDT, 5A)
AP1290 (Single/Dual Trip, 2 SPDT, 5A)

Description
Action Pak models AP1280 and AP1290 limit alarms offer wide ranging inputs and flexible setpoint capability. They accept six popular thermocouple types with inputs ranging from -270 C (-454 F) to 1760 C (3200 F). The AP1280 provides a single-setpoint alarm while the AP1290 provides two independent setpoint alarms. The AP1280 and AP1290 also include 0.25%-50% adjust- able deadbands and selectable 120/240VAC power.

Operation
The field configurable AP1280 and AP1290 limit alarm setpoints can be configured for HI, LO, latching or fail-safe trip operation. Non-latching HI and LO setpoints have respective HI and LO deadbands. In a tripped condition, the setpoint is exceeded and the appropriate red LED is lit. The trip will reset only when the process falls below the HI deadband or rises above the LO deadband (see figure 1). To reset a latched setpoint the signal must be in the safe region and the line power must be turned off for at least 5 seconds. For proper deadband operation, the HI setpoint must always be set above the LO setpoint.

In failsafe operation, the relay is energized when the process is below a HI setpoint or above a LO setpoint (opposite for non- failsafe). In the failsafe mode, a power failure results in an alarm condition.

Click here for the complete information in .pdf format

 

 
 
CTH Controls Inc.   CTH Controls Inc.
6-1500 Upper Middle Rd. W. Suite 220
Oakville, ON, Canada, L6M 0C2
Phone: 905-792-6829
Toll Free: 1-888-550-6829
Fax: 905-792-6902
sales@cthcontrols.com
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