Dwyer 25025 Temperature Controller
Request a quote
Dwyer 25025 is a temperature controller with thermocouple/RTD input, 4-20mA proportional output, dual 4-digit LED display, ±0.25% accuracy, and IP65 front panel rating.
Product details
| Model | 25025 |
| Manufacturer | Dwyer Instruments |
| Category | Process Instruments |
| Availability | Made to order |
Description
Overview
The Dwyer 25025 is an industrial temperature controller designed for precise process control applications. It accepts thermocouple or RTD temperature inputs and provides a proportional 4-20mA isolated current output, making it ideal for integration with PLCs, control systems, and analog instrumentation. 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
- Proportional 4-20mA isolated current output into 600 Ohms maximum
- 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 process control integration with PLCs and control systems
- Remote temperature monitoring and data acquisition
- HVAC systems with analog control interfaces
- Water treatment and cooling tower control
- Manufacturing equipment temperature management
Specifications
| Input Type | Thermocouple or RTD |
| Output Type | 4-20mA Proportional Isolated Current |
| Output Range | 0-20mA (selectable), into 600 Ohms maximum |
| 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 | 4-20mA output: 500 VAC |
| Weight | 13 oz (369 g) |
| Front Panel Rating | NEMA 4X (IP65) |
Request a quote
Dwyer 25025 Temperature Controller
Response within 24 hours
No obligation
Direct communication