The Watlow PM6L1EJ-AAEAAAA is a 1/16 DIN (48×48 mm) panel-mount controller from the EZ-ZONE® PM Express series, engineered for precise temperature and process control in industrial heating, cooling, and automation systems. This unit operates as either a PID controller with universal input or a limit controller with universal input, both featuring Auto-Tune algorithms and phase angle control mode. The sealed NEMA 4X / IP65 front bezel ensures reliability in demanding environments.
Technical Specifications
Control & Processing
• PID controller with universal input or Limit controller with universal input
• Auto-Tune PID algorithm
• Phase angle control mode
• Configurable for heating/cooling applications
• High amperage power control output
• 3 kW load power capacity
Input Specifications
• Universal input accepts thermocouples: J, K, T, E, N, R, S, B, C
• RTD Pt100 supported
• 0–20 mA or 0–50 mV inputs
• Supports grounded or ungrounded thermocouples, 2-wire or 3-wire RTD configurations
Output Configuration
• Output 1: Mechanical relay, 1 A @ 240 VAC or 5 A Form C (SPDT), 100,000 cycle life at rated load
• Output 2: DC pulse (SSR drive 12 VDC, 40 mA) or 5 A Form A (SPST), 100,000 cycle life at rated load
• Universal process output: 0–10 VDC or 4–20 mA selectable
• Maximum relay load: 5 A @ 240 VAC or 30 VDC
• Minimum load: 20 mA @ 24 V
• Pilot duty rated: 125 VA @ 120/240 VAC and 25 VA @ 24 VAC
Electrical & Communication
• Power supply: 100–240 VAC, 50/60 Hz
• EIA-485 (RS-485) serial communication standard
• Dual 4-digit red LED displays (7-segment)
Operator Interface
• Advance, infinity (RESET), up/down keys
• A/M-KEY for control or EZ-KEY(S) for limit selection
– Key Features
• Compact 1/16 DIN form factor for space-constrained panels
• Flexible input acceptance across thermocouple types, RTD, and analog signals
• Dual relay outputs with configurable Form A and Form C logic
• Auto-Tune PID eliminates manual tuning requirements
• High cycle-life relays rated for 100,000 cycles
– Typical Applications
Industrial process heating, cooling control loops, thermal system automation, and equipment requiring sealed, compact control in corrosive or wet environments.
– Compatibility & Integration
RS-485 serial communication enables integration with supervisory systems and networked control architectures. Universal input design accommodates existing sensor infrastructure without requiring signal conditioning.
