The Dwyer Series 2500 Temperature Control provides an impressive array of features in an economical 1/4 DIN package. Features include on-off, time proportioning, proportional, PI, PD, or full PID control, programmable from the front panel, or use Self-Tune® PID. Input types are selectable from a variety of thermocouple types (J, K, T, E, N or L) or DIN, NIST or Ni RTD's. Outputs include solid state relay, mechanical relay, 5 VDC (ideal for driving an external SSR) or isolated 4-20 mA proportional current. Optional programmable alarm can act as high or low or high/low guardband alarm.
A water and corrosion resistant front panel (NEMA 4X; IP 65), input fault timer, digital input filter, Self-Tune® ramp to setpoint, four password protected security levels and °F or °C display selection are all standard. Entire electronics package is field replaceable without wiring changes thanks to removable front panel.
| Input Impedance: | Thermocouple = 3 megohms minimum, RTD current = 200 mA maximum. |
|---|---|
| Sensor Break or Short Protection: | De-energizes control output to protect system. |
| Display: | Two-4 digit, 7 segment, 0.56" high LED. |
| Control Action: | Selectable for reverse (usually heating) or direct (usually cooling). |
| Ramp: | One ramp time adjustable from 0-100 hours. |
| Accuracy: | ±0.25% of span, ±1 degree. |
| Resolution: | 1 degree or 0.1 degree. |
| Temperature Stability: | 2.3 mV/°F (4 mV/°C) typical. |
| Common Mode Rejection: | 140 db minimum at 60 Hz. |
| Normal Mode Rejection: | 65 db typical, 60 db at 60 Hz. |
| Isolation: | Relay and SSR outputs; 1500 VAC. 0-20 mA output; 500 VAC. 5 VDC output is not isolated. |
| Power Consumption: | 5 VA maximum. |
| Supply Voltage: | 100-240 VAC nominal, +10%, 50-400 Hz, single phase; 132-240 VDC nominal, + 10%. |
| Operating Temperature Range: | 14 to 131°F (-10 to 55°C). |
| Storage Temperature Range: | -40 to 176°F (-40 to 80°C). |
| Humidity Range: | 0 - 90% up to 104°F (40°C) non-condensing, 10 to 50% at 131°F (55°C) non-condensing. |
| Memory Backup: | Non-volatile memory. No batteries required. |
| Control Output Ratings: | SSR: 2.5 A @ 240 VAC resistive at 77°F (25°C). De-rates to 1.25 A @ 130°F(55°C). Relay: SPDT, 10 A @ 240 VAC resistive. Switched Voltage (non-isolated): 5 VDC @ 20 mA. Proportional Isolated Current: 0-20 mA, selectable, into 600 Ohms maximum. |
| Weight: | 13 ounces (369 grams). |
| Agency Approvals: | UL and CSA pending. |
| Model | Alarm | Input | Output* |
|---|---|---|---|
| 25011 | No | Thermocouple | SSR |
| 25012 | No | Thermocouple | 5 VDC |
| 25013 | No | Thermocouple | Relay |
| 25015 | No | Thermocouple | 4-20 mA |
| 25021 | No | RTD | SSR |
| 25022 | No | RTD | 5 VDC |
| 25023 | No | RTD | Relay |
| 25025 | No | RTD | 4-20 mA |
| 25111 | Yes | Thermocouple | SSR |
| 25112 | Yes | Thermocouple | 5 VDC |
| 25113 | Yes | Thermocouple | Relay |
| 25115 | Yes | Thermocouple | 4-20mA |
| 25121 | Yes | RTD | SSR |
| 25122 | Yes | RTD | 5 VDC |
| 25123 | Yes | RTD | Relay |
| 25125 | Yes | RTD | 4-20 mA |
| *When ordering a control to operate contactor or solenoid loads greater than 100 mA, the SSR output should be selected instead of the Relay. If the Relay is selected, also order part number A-600, R/C Snubber. |
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SUGGESTED SPECIFICATIONS :
Temperature/Process Controller shall be 1/4 DIN microprocessor based with two 4 digit LED displays for setpoint, alarm status and °F or °C. Input shall be (selectable J, K, T, E, N or L thermocouple)(DIN-RTD). Output shall be (SSR)(5 VDC)(Relay)(Isolated 420 mA) programmable for manual or automatic Self-Tune® PID control (with)(without) alarm. Front panel shall be designed to meet NEMA-4X, IP65 ratings for weather and corrosion resistance. Accuracy shall be ±0.25% of span, ±1 degree. Temperature/Process Controller shall be Dwyer Instruments, Inc. Model No. 25_____.