Delta DTB4848RR Relay Output Temperature Controller
The Delta DTB4848RR Temperature Controller is a panel mount controller designed for precise temperature regulation in industrial automation systems. It features a compact 48 × 48 mm (1/16 DIN) size with a dual display showing process value and set point for clear monitoring. The controller supports thermocouple, RTD, and analog input signals, enabling flexible integration across different applications. It operates using PID, ON/OFF, manual, and ramp/soak control modes to maintain stable process performance. Manufactured by Delta automation, it is part of the temperature control range and belongs to the DTB series temperature controllers used in industrial environments.
| Brand | Delta |
| Product Type | Temperature Controller |
| Product | DTB4848RR |
Delta Relay Output Temperature Controller DTB4848RR Technical Specifications:
| Specification | Value |
|---|---|
| Panel Size (W×H) | 1/16 DIN W48 × H48mm |
| Input Voltage | AC100 ~ 240V, 50/60Hz; DC24V±10% |
| Operation Voltage Range | Rated voltage: AC 85% ~ 110%; DC 90 ~ 110% |
| Power Consumption | 5VA max. |
| Memory Protection | EEPROM 4K bit (non-volatile memory (number of writes: 100,000) |
| Display Method | 2 line x 4 character 7-segment LED display Process value (PV): Red color, Set point (SV): Green color |
| Sensor Type | Thermocouple: K, J, T, E, N, R, S, B, L, U, TXK 3-wire Platinum RTD: Pt100, JPt100 Analog input: 0 ~ 5V, 0 ~ 10V, 0 ~ 20 m A, 4 ~ 20 m A, 0 ~ 50mV |
| Control Mode | PID, ON/OFF, Manual or PID program control (Ramp/Soak control) |
| Control Output | Relay output: SPDT (SPST: 1/16 DIN and 1/32 DIN size), Max. load 250VAC, 5A resistive load Voltage pulse output: DC 14V, Max. output current 40mA Current output: DC 4 ~ 20m A output (Load resistance: Max. 600) Linear voltage output: 0 ~ 10V |
| Display Accuracy | 0 or 1 digit to the right of the decimal point (selectable) |
| Sampling Rate | Analog input: 150 msec/ per scan Thermocouple or Platinum RTD: 400 msec/per scan |
| RS-485 Communication | MODBUS ASCII / RTU communication protocol |
| Vibration Resistance | 10 to 55Hz, 10m/s2 for 10min, each in X, Y and Z directions |
| Shock Resistance | Max. 300m/ s2, 3 times in each 3 axes, 6 directions |
| Ambient Temperature | 0oC ~ +50oC |
| Storage Temperature | -20oC ~ +65oC |
| Altitude | 2,000m or less |
| Relative Humidity | 35% ~ 80% (non-condensing) |
| Panel Protection Level | IP65 |
| 1st Output Group Selection | R: Relay output, SPDT (SPST: 1/16 DIN and 1/32 DIN size), 250VAC, 5A V: Voltage pulse output, 14V +10% ~ -20% (Max. 40mA) C: DC current output , 4 ~ 20mA L: Linear voltage output, 0 ~ 10VDC |
| 2nd Output Group Selection | R: Relay output, SPDT (SPST: 1/16 DIN and 1/32 DIN size), 250VAC, 5A V: Voltage pulse output, 14V +10% ~ -20% (Max. 40mA) |
| EVENT inputs / CT function (optional) | None: No EVENT input , No CT (Current transformer) E: EVENT input is provided, No CT (Current transformer) T: CT (Current transformer) is provided, No EVENT input V: Valve control |
The Delta DTB4848RR temperature controller is built for stable and reliable thermal control in systems that require consistent process regulation. Its panel mounting design allows easy installation inside control panels while maintaining clear visibility through its LED display. The relay output configuration supports switching control for heating and cooling processes in automation setups.
In operation, the controller provides stable performance through configurable control modes and accurate signal processing. It supports multiple output types including relay, voltage pulse, current, and analog voltage outputs, enabling compatibility with different industrial control systems. RS-485 communication with Modbus protocol allows integration into centralized monitoring and control networks.
From an application perspective, the Delta DTB4848RR aligns with systems that require reliable temperature monitoring, flexible control output, and stable performance under continuous operation. Its ability to handle different sensor inputs and operate within defined environmental conditions makes it suitable for industrial automation setups. This connection between controller capability and process requirement makes it a practical solution within the DTB series.
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