Dwyer 25023 Temperature Controller
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Dwyer 25023 is a temperature controller with thermocouple/RTD input, relay output, dual 4-digit LED display, ±0.25% accuracy, and IP65 front panel rating.
Product details
| Model | 25023 |
| Manufacturer | Dwyer Instruments |
| Category | Process Instruments |
| Availability | Made to order |
Description
Overview
The Dwyer 25023 is an industrial temperature controller designed for precise process control applications. It accepts thermocouple or RTD temperature inputs and outputs to an electromechanical relay, making it suitable for heating and cooling control in manufacturing and industrial settings. The unit features a rugged NEMA 4X (IP65) rated front panel suitable for harsh environments.
Key Features
- Accepts thermocouple or RTD temperature inputs with 3 MΩ minimum thermocouple impedance
- Electromechanical relay output: SPDT, 10A @ 240VAC resistive
- Dual 4-digit, 7-segment LED display with 0.56" character height for clear visibility
- High accuracy: ±0.25% of span, ±1°C
- Selectable resolution: 1°C or 0.1°C
- Adjustable ramp time from 0-100 hours for gradual temperature changes
- Non-volatile memory backup (no batteries required)
- NEMA 4X (IP65) front panel rating for harsh industrial environments
- Universal voltage supply: 100-240 VAC or 132-240 VDC
- Selectable control action: reverse (heating) or direct (cooling)
- Low power consumption: 5 VA maximum
Applications
- Industrial heating and cooling process control
- Oven and kiln temperature regulation
- Water and air temperature management systems
- HVAC systems and climate control
- Machine and equipment temperature monitoring
Specifications
| Input Type | Thermocouple or RTD |
| Output Type | Electromechanical Relay (SPDT) |
| Output Rating | 10A @ 240VAC resistive |
| Display | Dual 4-digit, 7-segment LED, 0.56" high |
| Resolution | 1°C or 0.1°C |
| Accuracy | ±0.25% of span, ±1°C |
| Supply Voltage | 100-240 VAC nominal (±10%, 50-400 Hz) or 132-240 VDC nominal (±10%) |
| Power Consumption | 5 VA maximum |
| Operating Temperature | -10°C to 55°C (14°F to 131°F) |
| Ramp Time | Adjustable from 0-100 hours |
| Memory Backup | Non-volatile (no batteries required) |
| Input Impedance | Thermocouple = 3 MΩ minimum; RTD current = 200µA maximum |
| Isolation | Relay output: 1500 VAC |
| Weight | 13 oz (369 g) |
| Front Panel Rating | NEMA 4X (IP65) |
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Dwyer 25023 Temperature Controller
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