Series 4B 1/4 DIN Temperature/Process Controller

Dual Control Output, RS-485 Communication, Auto-Tuning

The Series 4B 1/4 DIN Temperature/Process Controller is designed to accept thermocouple, RTD, current or voltage input and provide dual outputs for control. Available outputs include relay/relay, voltage pulse/relay, current/relay, or linear voltage/relay.

The units can be programmed for ON/OFF, PID, auto-tuning, or manual tuning control methods. The PID control is supported by 64 ramp/soak actions. The Series 4B also includes two additional alarm outputs. The second relay output can be reconfigured as a third alarm output. The alarm type can be selected from 13 different preprogrammed alarm functions. The controller features dual LED displays for local indication of process and setpoint values.

Product Applications

Control temperature for boilers, damper control based on temperature or pressure.
Hot plates/melt pots.
Packaging equipment.
Environmental chambers.
Medical equipment.
Food service equipment.

Models & Ordering

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1/4 DIN Temperature/Process Controller
1/4 DIN Temperature/Process Controller, Low Voltage

Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

COVID-19 Update: Due to high customer demand, lead time on some products may be up to two weeks. While this is a developing health situation, we are working continuously to take the necessary measures to ensure that the products you need are available with minimal interruption.

Model	Description	Usually Ships*	Price	Order
4B-23 Ships: Same Day Price: $136.00	1/4 DIN temperature/process controller, (1) voltage pulse output and (1) relay output.	Same Day*	$136.00	Order
4B-33 Ships: Same Day Price: $136.00	1/4 DIN temperature/process controller, (2) relay outputs.	Same Day*	$136.00	Order
4B-33-986/U Ships: Consult Factory Price: $716.00	Benchtop Temperature/Process Controller, 120 V supply, with 2 relay outputs, and universal sensor input.	Consult Factory*	$716.00	Order
4B-53 Ships: Same Day Price: $136.00	1/4 DIN temperature/process controller, (1) current output and (1) relay output.	Same Day*	$136.00	Order
4B-63 Ships: Same Day Price: $136.00	1/4 DIN temperature/process controller, (1) linear voltage output and (1) relay output.	Same Day*	$136.00	Order

Specifications

Inputs:: Thermocouple, RTD, DC voltages or DC current.
Display:: Two 4-digit, 7 segment. PV: 3/4" H (19 mm) red; SV: 1/2" H (12.7 mm) green.
Accuracy:: ±0.25% span, ±1 least significant digit.
Supply Voltage:: 100 to 240 VAC, 50/60 Hz or 24 VDC (depending on model).
Power Consumption:: 5 VA max.
Operating Temperature:: 32 to 122°F (0 to 50°C).
Memory Backup:: Nonvolatile memory.
Control Output Ratings:: Relay: SPDT, 5 A @ 250 VAC resistive; Voltage Pulse: 14 V, 10% to -20% (max 40 mA); Current: 4 to 20 mA; Linear Voltage: 0-10 V.
Communication:: RS-485 Modbus® A-5-11/RTU communication protocol.
Weight:: 15 oz (425 g).
Agency Approvals:: CE, RoHS, cUL, UL.
Front Panel Rating:: IP56.

Features

Universal input accepts process transmitters, RTD’s or thermocouple signals
On/off, PID, or manual output control
RS-485 standard on all models
Stage control program for up to 64 ramp/soak actions

Accessories

Model Number	Description	Usually Ships*	Price	Order
SCD-SW	Configuration software.	Same Day	$37.00	Order
A-277	Precision resistor, 250 ohm.	Same Day	$7.70	Order
MN-1	Mini-Node™ RS-485 to USB converter.	Same Day	$84.00	Order
A-900	Weatherproof enclosure, type 4X, control direct panel mounts in the front of the enclosure.	Same Day	$137.00	Order
A-901	Weatherproof enclosure, type 4X, clear plastic window with rear panel for mounting the control inside the enclosure.	Same Day	$255.00	Order
A-600	R/C snubber (recommended for inductive loads like a solenoid or contactor).	Same Day	$20.00	Order
A-TC-K100-FB	K type, 100' on spool, fiber glass insulation, 450°C, yellow outer sheath, 24 AWG, 0.20 SQMM	1-2 Weeks	$68.50	Order
A-TC-K100-FEP	K type, 100' on spool, FEP insulation, 200°C, yellow outer sheath, 24 AWG, 0.20 SQMM	1-2 Weeks	$58.50	Order
A-TC-K25-FB	K type, 25' on spool, fiber glass insulation, 450°C, yellow outer sheath, 24 AWG, 0.20 SQMM	1-2 Weeks	$25.25	Order
A-TC-K25-FEP	K type, 25' on spool, FEP insulation, 200°C, yellow outer sheath, 24 AWG, 0.20 SQMM	1-2 Weeks	$23.25	Order
A-TC-K50-FB	K type, 50' on spool, fiber glass insulation, 450°C, yellow outer sheath, 24 AWG, 0.20 SQMM	1-2 Weeks	$40.25	Order
A-TC-K50-FEP	K type, 50' on spool, FEP insulation, 200°C, yellow outer sheath, 24 AWG, 0.20 SQMM	1-2 Weeks	$34.75	Order
A-TC-J100-FB	J type, 100' on spool, fiber glass insulation, 450°C, black outer sheath, 24 AWG, 0.20 SQMM	1-2 Weeks	$42.25	Order
A-TC-J100-FEP	J type, 100’ on spool, FEP insulation, 200°C, black outer sheath, 24 AWG, 0.20 SQMM	1-2 Weeks	$31.75	Order
A-TC-J25-FB	J type, 25' on spool, fiber glass insulation, 450°C, black outer sheath, 24 AWG, 0.20 SQMM	1-2 Weeks	$19.25	Order
A-TC-J25-FEP	J type, 25' on spool, FEP insulation, 200°C, black outer sheath, 24 AWG, 0.20 SQMM	1-2 Weeks	$16.00	Order
A-TC-J50-FB	J type, 50' on spool, fiber glass insulation, 450°C, black outer sheath, 24 AWG, 0.20 SQMM	1-2 Weeks	$26.75	Order
A-TC-J50-FEP	J type, 50’ on spool, FEP insulation, 200°C, black outer sheath, 24 AWG, 0.20 SQMM	1-2 Weeks	$21.25	Order