Product Description
Athena C-Series 25C Universal Temperature/Process Controller – 1/4 DIN
This used Athena 25C is a versatile 1/4 DIN panel-mounted temperature and process controller designed for industrial applications requiring precise single-loop control. Part of Athena’s C-Series, it features auto-tuning, universal input capability, and field-configurable outputs .
About the Athena 25C:
The 25C is a sophisticated controller with dual digital LED displays (orange process value, green setpoint) and a NEMA 4X (IP65) dust and splash-proof front panel, making it suitable for demanding industrial environments .
Key Features & Specifications :
| Specification | Details |
|---|---|
| Manufacturer | Athena Controls, Inc. |
| Series | C-Series |
| Model | 25C |
| Type | 1/4 DIN Temperature/Process Controller |
| Display | Dual 4-digit 0.36″ LED: Orange (PV), Green (SV) |
| Input Types | Field-configurable: Thermocouple (B, C, E, J, K, N, R, S, T, Platinel II), RTD (100 ohm Pt), Linear (mV, V, mA) |
| Temperature Ranges | Up to 4199°F (2315°C) depending on sensor type |
| Accuracy | ±0.20% of full scale (±0.10% typical) |
| Control Modes | On/Off through full PID (P, PI, PD, PID) with auto-tune |
| Outputs | Two independent outputs, field-configurable as direct/reversing acting or alarms |
| Alarms | Process or deviation alarms; latching/non-latching; band and inverse band |
| Special Features | Ramp to setpoint, 8-level ramp/soak control, bumpless auto/manual transfer |
| Communications | Optional RS-232 or RS-485 (Athena+ or Modbus) |
| Power | 85-265 Vac, 50/60 Hz; 120-375 Vdc (auto polarity) |
| Power Consumption | Less than 6 VA |
| Front Panel Rating | NEMA 4X (IP65) dust and splash-proof |
| Panel Cutout | 3.622″ x 3.622″ (92 mm x 92 mm) |
| Case Dimensions | 4.654″ H x 3.937″ W x 3.600″ D (118.2 x 100.0 x 91.4 mm) |
| Depth Required | Minimum 4″ (100 mm) behind panel |
| Connections | Screw terminals |
| Approvals | UL, cUL, CE |
Output & Alarm Options (Field-Configurable) :
-
Output 1/2 Types: Relay (N.O.), 0-20 mA, 4-20 mA, 0-5 Vdc, 0-10 Vdc, Pulsed 20 Vdc, Solid-state relay
-
Alarm 1/2 Types: Relay (N.O.), 24 Vdc output, Solid-state relay
Optional Features :
-
Auxiliary Output: 4-20 mA, 1-5 V, 0-20 mA, 0-5 V for PV retransmission
-
Remote Analog Setpoint: 0-5 V, 1-5 V, 0-20 mA, 4-20 mA with switch
-
Transducer Excitation: 5, 10, 12, or 15 Vdc
-
Communications: RS-232 (one-to-one) or RS-485 (one-to-many) with Athena+ or Modbus protocol
Condition:
SOLD AS IS
USED – SHOWS NORMAL INDUSTRIAL WEAR (scuffs, panel marks)
UNTESTED – CONTROL FUNCTION NOT VERIFIED
NO COMMUNICATIONS MODULE INCLUDED
NO MANUAL OR DOCUMENTATION INCLUDED
PICTURE MAY NOT MATCH PRODUCT
Potential Applications :
-
Industrial furnaces and ovens
-
Plastics processing (extrusion, injection molding)
-
Packaging machinery
-
Environmental chambers
-
Laboratory equipment
-
Heat treating
-
Semiconductor processing
-
Food processing equipment
| Weight | 3.1 lbs |
|---|---|
| Dimensions | 6 × 6 × 6 in |
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