PD138 MINIMUX II Temperature and Process Scanner

The MINIMUX® II PD138 is a microprocessor-based, eight-channel analog input scanner/multiplexer and annunciator that provides low-cost automatic switching for multi-point display and alarm systems.

It can automatically switch up to eight inputs to another device such as a digital panel meter, controller, or PLC.

Signal switching is done via reed relays making the PD138 ideal for switching thermocouples, RTDs, control loops, and AC/DC signals.

They feature rugged NEMA 4X/IP65 fronts and a wide operating temperature range.

They can be programmed for many common ISA alarm sequences including first out indication and they provide alarm signaling through front panel LEDs and a build in 85 dB horn. 

• 8 Inputs per Unit, Eliminates Need for 7 Displays
• Unlimited Number of Units per System
• Free Custom Message Labels
• Thermocouples, RTDs, Process, AC & DC Inputs
• Adjustable Dwell Time for Each Channel
• Independent Alarm Input for Each Channel
• First-Out Alarm Indication
• Alarms Indicated by LEDs, Built-in Horn, and Relay
• Built-in 85 dB Horn with Silence Pushbutton
• Stop-On-Alarmed Channel (Field Select)
• Non-Interruptible 4-20 mA Inputs
• Sunlight Readable Indication
• NEMA 4X/IP65 Front
• Shallow Depth 1/8 DIN Enclosure
• -40 to 65°C Operating Temperature Range