With the TP31-IR, surface temperatures can be determined quickly and contactless. Thanks to an adjustable emission level and a double laser, which serves as a target device, the surfaces of a wide range of materials can be precisely measured.
Optics
The focal point of the device lens is 150 mm (TP31-IR121) or 762 mm (TP31-IR301) from the beam exit opening. There the measuring spot has a diameter of 12.5 mm respectively 25.4 mm, resulting in a ratio of D:S of 12:1 or 30:1. The size of the measuring spot corresponds to 90 % of the measured energy. The TP31-IR301 therefore also allows accurate measurements of small surfaces from further distances.
• 12:1 (-50…650 °C) or 30:1 optics (-50…1000 °C)
• Two-beam laser sight
• Automatic data hold
• Units can be switched between °C and °F
• Emission level adjustable between 0.1 and 1.0
• MAX temperature display
• Illuminated display
• Automatic range selection and display resolution of 0.1 °C or 0.1 °F
• Activatable trigger lock
• Freely selectable lower and upper alarm limits
| Operating range | 0...50 °C (32...122 °F) 10…90 %RH |
| Accuracy | -50...20 °C (-58...68 °F): ±2.5 °C (±4.5 °F) 20...300 °C (68...572 °F): ±1.0 % of reading ±1.0 °C (±1.0 % of reading ±1.8 °F) >300 °C (>572 °F): ±1.5 % of reading |
| Repeatability | -50...20 °C (-58...68 °F): ±1.3 °C (±2.3 °F) >20 °C (>68 °F): ±0.5 % of reading or ±0.5 °C (±0.5 % of reading or ±0.9 °F) |
| Ratio D:S | TP31-IR121: 12:1 TP31-IR301: 30:1 |
| Power supply/Power consumption | 9 V battery (NEDA 1604A or IEC 6LR61) |
| Response time | 150 ms |
| Sensor sensitivity | 8...14 μm |
| Emissivity | 0.10...1.00 (0.01 steps) |
| Diode laser | 0.1 °C/°F @ T < 1000 °C/°F 1 °F @ T > 1000 °F |
| Storage and transport conditions | -10...60 °C (14...140 °F) <80 %RH |
| Dimensions | 107x153x46mm |
| Rotronic TP31 Infrared Thermometer - Data Sheet 269.1 KB |
| Rotronic TP31 Infrared Thermometer - Short Instruction Manual 492.7 KB |
