Adds Alarm Relay Capability to Common Analog Outputs
Ideal for Use with Two Wire Transmitters
Independent Setpoint and Dead Band Controls for Each Relay
Relays Energize on Increasing or Decreasing Input Value-Switch Selectable
NEMA 4X Gasketed Enclosure Provides Watertight Protection
Model PHA-50 Loop Powered Isolator
Prevents Ground Loops
Transformer Isolated
Loop Powered
Virtually Zero Temperature Drift
产品描述
The PHCN-50 Series has been discontinued. Please see the CCT-100 as a possible substitute or
contact our pH and Environmental department.
The Model PHA-51 and PHA-52 dual alarm modules provide an ideal way to add alarm capability to a control system loop.
The module’s two relays each have setpoint and deadband controls and an LED to indicate on/off relay status. Relay
phasing switches individually select each relay to operate in response to increasing or decreasing input signal value.
For compatibility with many systems, input levels are user selectable. The PHA-51 accepts 0 to 20 mA, 4 to 20 mA, or
0 to 5Vdc inputs and the PHA-52 takes 0 to 50 mV, 0 to 100 mV, 0 to 5 Vdc.
† 所有金额以RMB显示 注: Units come with complete operator's manual.
