Dwyer Instruments 25125 Temperature Controller
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Dwyer 25125 is a precision temperature controller with thermocouple/RTD input, 4-20 mA output, and integrated alarm function.
Product details
| Model | 25125 |
| Manufacturer | Dwyer Instruments |
| Category | Process Instruments |
| Availability | Made to order |
Description
Overview
The Dwyer Instruments 25125 is a microprocessor-based temperature controller designed for process control applications. It accepts input from thermocouples or resistance temperature detectors (RTDs) and provides multiple output options including proportional 4-20 mA control, relay, and solid-state relay (SSR) outputs.
Key Features
- Dual input type support: Thermocouple or RTD
- 4-20 mA analog output for proportional control
- Integrated alarm function with independent setpoint
- Dual 4-digit, 7-segment LED display (0.56" high)
- Selectable resolution: 1°C or 0.1°C
- High accuracy: ±0.25% of span, ±1°C
- NEMA 4X (IP65) front panel rating for wet environments
- Isolated relay and SSR outputs (1500 VAC isolation)
- Adjustable ramp time from 0-100 hours
- Non-volatile memory with no battery backup required
Applications
- Process heating and cooling control
- Industrial temperature management
- HVAC and environmental chamber control
- Food and beverage processing
Specifications
| Input Type | Thermocouple or RTD |
| Output Options | 4-20 mA, Relay (SPDT 10 A @ 240 VAC), SSR (2.5 A @ 240 VAC, de-rates to 1.25 A @ 55°C), 5 VDC @ 20 mA |
| Alarm Function | Yes, with independent setpoint |
| Display | Two 4-digit, 7-segment LED display, 0.56" high |
| Resolution | 1°C or 0.1°C (selectable) |
| Accuracy | ±0.25% of span, ±1°C |
| Supply Voltage | 100-240 VAC (±10%), 50-400 Hz; or 132-240 VDC (±10%) |
| Power Consumption | 5 VA maximum |
| Operating Temperature | -10 to 55°C (14 to 131°F) |
| Output Isolation | Relay and SSR: 1500 VAC; 0-20 mA: 500 VAC; 5 VDC: non-isolated |
| Ramp Time | 0-100 hours (adjustable) |
| Memory | Non-volatile (no battery backup required) |
| Front Panel Rating | NEMA 4X (IP65) |
| Weight | 369 g (13 oz) |
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Dwyer Instruments 25125 Temperature Controller
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