CL3512A Rugged J,K,T, E Thermocouple Calibrator and Thermometer
Temperature Calibrator and Thermometer
Supported Applications
The Omega CL3512A is a digital thermometer and calibrator that functions as two meters in one. It simulates type J, K, T, and E thermocouple signals to check the operation of a thermocouple meter and make rough calibration adjustments. Additionally, it operates as a dual input thermometer for measuring temperature via Type J/K/T/E thermocouples.
Operating Conditions & Performance
The CL3512A supports measurement ranges across four thermocouple types: Type J from -200°C to 1200°C (-328°F to 2192°F), Type K from -200°C to 1372°C (-328°F to 2502°F), Type T from -200°C to 400°C (-328°F to 752°F), and Type E from -200°C to 1000°C (-328°F to 1832°F). Accuracy is specified as ±0.5°C or ±0.5% of reading, whichever is greater.
Resolution options include 0.1°C or 0.1°F when the 0.1° setting is selected, and 1°C or 1°F when the 1° setting is selected. The typical response time (90%) is 1 second. Ambient operating temperature ranges from 0°C to 50°C (32°F to 122°F), with storage temperatures between -20°C to 60°C (-4°F to 140°F). Humidity ratings are 0% to 95% RH, non-condensing.
Configuration Options
The series features a large 3½ digit display with backlighting. Display selections include HOLD mode and unit toggling between °C/°F. The device is powered by a 9V battery.
• Sensor Inputs: T1 and T2 input connectors for dual thermocouple measurement (Types J, K, T, E).
• Output Signal: Simulated thermocouple output via an SMP male connector required for the source mode.
• Housing Dimensions: 195mm (H) x 92mm (W) x 53mm (D).
Available options and accessories include a rubber boot, two K beaded wire thermocouples, a K calibration cable, a 9 volt battery, and an operator's manual.
Key Product Differences
The CL3512A is offered as a single handheld unit combining source (simulation) and measure functions. The device carries CE Mark approval and ISO 9001 Certified (USA) / ISO 9002 Certified (United Kingdom) status.
Operational warnings note that the instrument should not be used with voltages at the measurement surface over 24V AC or DC to avoid electrical shock. Temperature measurements in microwave ovens are prohibited to prevent damage or burns. The product is not designed for patient connected applications.
| Accuracy | ± 0.1 % |
| Accuracy Detail | ± (0.1% rdg + 1°C) Accuracy is specified for operating temperatures from 18 to 28°C (64 to 82°F), for 1 year, not including thermocouple error; ± (0.1% rdg + 1°C) range -60 to 1372°C [± (0.1% rdg + 2°F) range -76 to 1999°F] ± (0.1% rdg + 2°C) range -60 to -220°C[± (0.1% rdg + 4°F) range -76 to -364°F] |
| Auto-Ranging | 0.1° to 1° |
| Auto-Ranging Note | 0.1° to 1° resolution above 199.9 (°C or °F) |
| Battery Indication | A low battery indication is displayed when the battery voltage drops below the operating level |
| Battery Life | 100 hr |
| Display Type | LCD |
| Display Type Note | 3 1⁄2 digit LCD with a maximum reading of 1999. Overrange: (-OL) is displayed. Zero: Automatic |
| Height | 195 mm |
| Length | 53 mm |
| Operating Temperature, Min | 0 °C |
| Operating Temperature Note | 0 to 50°C (32 to 122°F) @ <80% RH |
| Polarity | Automatic, positive implied, negative polarity indication |
| Relative Humidity, Max | 0.8 |
| Relative Humidity, Min | 0% |
| Resolution, Max | 1 °C |
| Resolution, Min | 0 °C |
| Resolution Note | 0.1 (to 199.9) or 1° |
| Sampling Rate | 1 Hz (1 update/second) |
| Series ID | CL3512A-Series |
| Simulation Accuracy | Measurement Accuracy + 1°C |
| Storage Temperature, Max | 60 °C |
| Storage Temperature, Min | -20 °C |
| Storage Temperature, Note | -20 to 60°C (-4 to 140°F), 0 to 80% RH with battery removed from meter |
| Supply Voltage | 9 Vdc |
| Thermocouple Type | J, K, T, E |
| Type of RTD Signal | None |
| Weight | 250 g |
| Weight Note | Approximately 250 g (9 oz) |
| Width | 92 mm |