Flex Modules—High Density I/O Specifications
Four Universal Inputs (Control Loops, Auxiliary Input)
• Thermocouple: grounded or ungrounded sensors, greater than
20MΩ input impedance, 2kΩ source resistance max.
• RTD: 2-wire, platinum, 100Ω and 1000Ω at 32°F (0°C) calibration to
DIN curve (0.00385Ω/Ω/°C)
• Process: 0-20mA at 100Ω, or 0-10VDC, 0-50mVDC at 20kΩ input
impedance; scalable
• Potentiometer: 0 to 1,200Ω
• Inverse scaling

Four Thermistor Inputs (Control Loops, Auxiliary Input)
• 0 to 40kΩ, 0 to 20kΩ, 0 to 10kΩ, 0 to 5kΩ
• 2.252kΩ and 10kΩ base at 77°F (25°C)
• Preprogrammed Steinhart-Hart coefficients for Alpha Techniques
(A curve 2.252k and 10k, C curve 10k), BetaTHERM (2.2K3A, 10K3A
and 10K4A) and YSI (004, 016 and 006)
• User-settable Steinhart-Hart coefficients for other thermistors
Three Universal Process/Retransmit Outputs
• Output range selectable
• 0 to 10VDC ±15mV into a min. 4,000Ω load with 2.5mV nominal
resolution
• 0 to 20mA ±30μA into max. 400Ω load with 5μA nominal resolution
• Temperature stability 100ppm/°C
Three Mechanical Relays
• 2 Form C relays, 1 Form A relay. Form A relay shares common with
1 Form C relay
• Each relay is 5A, 24 to 240VAC or 30VDC max., resistive load,
100,000 cycles at rated load. Requires a min. load
of 20mA at 24V, 125VA pilot duty 120/240VAC, 25VA at 24VAC
Four Mechanical Relays
• Form A, 5A ea., 24 to 240VAC or 30VDC max., resistive load, 100,000
cycles at rated load. Requires a min. load of 20mA at 24V, 125VA
pilot duty
Two Solid State Relays
• Form A, 10A max. each SSRs combined at 24VAC min.,
264VAC max., opto-isolated, without contact suppression,
max. resistive load 10A per output at 240VAC, max. 20A per
card at 122°F (50°C), max.
Watlow 0216-1285-0000 Flush mount - mounting adapter plate
Watlow 0847-0400-0000 USB 2.0 to RJ45 Ethernet adapter
Watlow 0238-1245-ALUM Accent bar (brushed aluminum gray)
Watlow 0238-1245-REDD Accent bar (brushed aluminum red)
Watlow 0238-1245-BLUE Accent bar (brushed aluminum blue)
Watlow 16-0246 Current transformer
Watlow 0804-0147-0000 RC supression - Quencharc®
Watlow 0601-0001-0000 Controller support tools (DVD)
Watlow 0830-0808-0001 (CAPUSB-MB5) Rubber plug USB mini
Watlow 0830-0808-0002 (CAPUSB-A) Rubber plug USB host
Watlow 0830-0858-0000 Replacement battery
Watlow 0822-0769-0000 Module slot plug (for vacant F4T slots without flex modules
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