Watlow F4 1/4 DIN Ramping Controllers

F4S / F4D
Watlow F4 1/4 DIN Ramping Controllers
The SERIES F4 1/4 DIN industrial ramping controller meets the requirements of the most demanding ramp and soak processing applications. Easy to setup and operate, its programming features and proven performance capabilities are ideally suited for environmental chamber or furnace and oven applications. Single and dual channel versions are available.
Competitively-priced, the SERIES F4 ramping controller features a four line, high-definition LCD interface display for quick and easy profile programming and controller configuration. Its 16-bit microprocessor ensures accuracy and delivers performance advantages you can count on from a Watlow® controller.
Up to 256 steps can be programmed into as many as 40 nameable profiles that can be programmed to wait for events or for up to three different process variables. A guaranteed soak feature allows a setting for how closely to control a process.
Program the four digital event inputs to remotely start, pause or terminate any preprogrammed process recipes. Eight event outputs are segment programmable and three outputs can be assigned to a programmable compressor and boost heat/boost cool control. A real-time clock can start a profile at any time.
Serial communication and dual alarm relays are included in the base unit. The SERIES F4 ramping controller is packaged with a NEMA 4X front face to withstand harsh environments and a 4 in. (102 mm) deep case with removable connectors for wiring convenience. It is manufactured by Watlow, ISO 9001 registered and protected by a three-year warranty.

User Manual (EN)
Watlow: Your Heat Solutions Resource Brochure (EN)

Manuel de l'Utilisateur (FR)
Watlow: Vos Solutions de Chauffage Brochure (FR)

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Product Features

Guided 256 step, 40 profile ramp and soak programmable memory
  • Supports a wide range of processing applications
High definition four-line LCD controller interface display
  • Simplifies setup and operation
Menu customization
  • Offers enhanced process monitoring
High performance 16-bit microprocessor
  • Provides precise process control
Universal inputs
  • Provides application versatility
Expandable modular construction
  • Field upgradable
Enhanced environmental chamber control
  • Supports humidity, compressor, boost heat/boost cool control
Cascade control
  • Provides precise two variable control
Real-time clock with battery backup
  • Offers operational flexibility

Product Specifications

Universal Analog Inputs 1 (2 and 3 Optional):
Updates rates, IN1 = 20Hz, IN2 and IN3 = 10HZ
  • Type J, K, T, N, E, C (W5), D (W3), PTII, R, S, B
  • Input impedance 20MΩ
  • 2- or 3-wire platinum, 100, 500 or 1000Ω
  • JIS or DIN curves, 1.0 or 0.1 indication
  • Input resolution ≈50,000 bits at full scale
  • Range selectable: 0-10VDC, 0-5VDC, 1-5VDC, 0-50mV, 0-20mA, 4-20mA
  • Voltage input impedance 20KΩ
  • Current input impedance 100Ω
Digital Inputs (4):
  • Update rate = 10Hz
  • Contact or dc voltage (36VDC max.)
  • 10KΩ input impedance
Control Outputs (1A, 1B, 2A, 2B):
Update rate = 20Hz
  • Internal load switching (nominal): Switched dc, 22 to 28VDC, limited @ 30mA
  • External load switching (max.): Open collector 42VDC @ 0.5A
Solid State Relay:
Zero switched, optically coupled, 0.5A @ 24VAC min., 253VAC max.
Process Outputs (Optional Retransmit):
  • Update rate = 1Hz
  • User selectable 0-10VDC, 0-5VDC, 1-5VDC @1KΩ min., 0-20mA, 4-20mA @ 800Ω max.
  • Resolution: dc ranges = 2.5mV nominal mA ranges = 5μA nominal
  • Calibration accuracy:dc ranges = ±15mV mA ranges = ±30μA
  • Temperature stability 100ppm/°C
Alarm Outputs:
  • Output update rate 1Hz
  • Electromechanical relay, Form C, 2A @ 30VDC or 240VAC max.
Digital Outputs (8):
  • Update rate = 10Hz
  • Open collector output
  • Off = 42VDC max. @ 10μA
  • On = 0.2VDC max. @ 50mA sink
  • Internal supply: 5VDC, @ 80mA
EIA-232 and EIA-485 serial communications with Modbus® RTU protocol
Safety and Agency Approvals:
UL®/C-UL® 916 listed, File #E185611
Process Control Equipment:
  • CE
  • EN 61010-1
  • EN 61326
  • IP65 and NEMA 4X
Touch-safe, removable terminal blocks, accepts 12 to 22 gauge wire
  • 100-240VAC, -15%, +10%; 50/60Hz, ±5%
  • 24-28VAC/VDC, -15%, +10% (order option)
  • 39VA max. power consumption
  • Data retention upon power failure via nonvolatile memory (7 years for battery backed RAM)
  • Sensor input isolation from input to input to output to communication circuitry is 500VAC
Operating Environment:
  • 32 to 130°F (0 to 55°C)
  • 0 to 90% RH, non-condensing
  • Storage temperature: -40 to 158°F (-40 to 70°C)
  • Calibration accuracy and sensor conformity: ±0.1% of span ±1°C @ 77°F ±5°F (25°C ±3°C) ambient and rated line voltage ±10% with the following exceptions:
  • Type T: 0.12% of span for -328 to -58°F (-200 to -50°C)
  • Types R and S: 0.15% of span for 32 to 212°F (0 to 100°C)
  • Type B: 0.24% of span for 1598 to 3092°F (870 to 1700°C)
  • Accuracy span: Less than or equal to operating ranges, 1000°F (540°C) min.
  • Temperature stability: ±0.1°F/°F (±0.1°C/°C) rise in ambient for thermocouples ±0.05°F/°F (±0.05°C/°C) rise in ambient for RTD sensors.
  • Process: 5 digit, 7 segment LED, red
  • Control interface display: 4-row, 20-character high definition LCD green
Sensor Operating Ranges:
  • Type J: 32 to 1500°F or 0 to 815°C
  • Type K: -328 to 2500°F or -200 to 1370°C
  • Type T: -328 to 750°F or -200 to 400°C
  • Type N: 32 to 2372°F or 0 to 1300°C
  • Type E: -328 to 1470°F or -200 to 800°C
  • Type C (W5): 32 to 4200°F or 0 to 2315°C
  • Type D (W3): 32 to 4352°F or 0 to 2400°C
  • Type Pt 2: 32 to 2543°F or 0 to 1395°C
  • Type R: 32 to 3200°F or 0 to 1760°C
  • Type S: 32 to 3200°F or 0 to 1760°C
  • Type B: 32 to 3300°F or 0 to 1816°C
  • RTD (DIN): -328 to 1472°F or -200 to 800°C
  • RTD (JIS): -328 to 1166°F or -200 to 800°C
  • Process: -19,999 to 30,000 units
Sensor Accuracy Ranges, Input ranges:
  • Type J: 32 to 1382°F or 0 to 750°C
  • Type K: -328 to 2282°F or -200 to 1250°C
  • Type T: -328 to 662°F or -200 to 350°C
  • Type N: 32 to 2282°F or 0 to 1250°C
  • Type E: -328 to 1470°F or -200 to 800°C
  • Type C (W5): 32 to 4200°F or 0 to 2315°C
  • Type D (W3): 32 to 4352°F or 0 to 2400°C
  • Type Pt 2: 32 to 2540°F or 0 to 1393°C
  • Type R: 32 to 2642°F or 0 to 1450°C
  • Type S: 32 to 2642°F or 0 to 1450°C
  • Type B: 1598 to 3092°F or 870 to 1700°C
  • RTD (DIN): -328 to 1472°F or -200 to 800°C
  • RTD (JIS): -328 to 1166°F or -200 to 630°C
  • Process: -19,999 to 30,000 units