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Specific, Convenient Data Collection & Storage
Ideal for environmental atmospheric pressure, temperature, and relative humidity acquisition, this sensor features an aluminum probe that protects against harsh conditions. Moreover, this calibratable ±0.18°F (±0.1°C) accuracy sensor works with the instrument in virtual COM port mode, and the USB port makes it usable in minutes.
Ideal for environmental atmospheric pressure, temperature, and relative humidity acquisition, this sensor features an aluminum probe that protects against harsh conditions. Moreover, this calibratable ±0.18°F (±0.1°C) accuracy sensor works with the instrument in virtual COM port mode, and the USB port makes it usable in minutes.
The PTH450 allows for the acquisition of temperature, relative humidity, and atmospheric pressure data in a harmonized manner, thanks to its advanced electronics. As a member of the PTH series, it stands out as the most robust, with its anodized aluminum-coated probe capable of withstanding temperatures of up to 257°F (125°C). The compact aluminum probe makes it easy to install in confined spaces, and the integrated filtration membrane provides additional protection against dust.
Furthermore, the probe cable is coated with silicone, making it highly resistant to heat, chemicals, UV radiation, and mechanical stress.
Like all Dracal measurement instruments, the PTH450 works with free software tools, making it an integral part of a DAQ (Data Acquisition) solution. For those looking to integrate the PTH450 into their system, command-line tools and VCP (Virtual COM Port) mode are two possible options. For those who prefer a graphical interface, DracalView is highly recommended.
Features
Applications
| Temperature (probe) | |
| Operating Range | -40 to 257°F (-40 to 125°C) Extended temperature: -49 to 266°F (-45 to 130°C) |
| Accuracy | -40 to 68°F (-40 to 20°C): Typ.: ±0.36°F (±0.2°C) Maximum: ±0.54°F (±0.3°C) 68 to 140°F (20 to 60°C): Typ.: ±0.18°F (±0.1°C) Maximum: ±0.54°F (±0.3°C) 140 to 257°F (60 to 125°C): Typ.: ±0.72°F (±0.4°C) Maximum: ±1.08°F (±0.6°C) -40 to 257°F (-40 to 125°C): Typ.: ±0.72°F (±0.4°C) Maximum: ±1.08°F (±0.6°C) |
| Resolution | Typ.: 0.027°F (0.015°C) |
| Repeatability | Typ.: 0.108°F (0.06°C) |
| Response Time | t63%: 10 seconds |
| Factory Calibrated | Yes, individually |
| Long-Term Drift | Maximum: <0.054°F/year (<0.03°C/year) |
| Relative Humidity (probe) | |
| Operating Range | 0 to 100% RH, non-condensing |
| Accuracy | 0 to 80% RH at 77°F (25°C): Typ.: ±1.5% RH Maximum: ±2% RH 80 to 100% RH at 77°F (25°C): Typ.: ±2% RH Maximum: ±3% RH 0 to 80% RH from 50 to 122°F (10 to 50°C): Typ.: ±1.5% RH Maximum: ±2% RH 0 to 100% RH from 32 to 176°F (0 to 80°C): Typ.: ±2% RH Maximum: ±3% RH |
| Resolution | Typ.: 0.01% RH |
| Hysteresis | At 77°F (25°C): 0.8% RH |
| Factory Calibration | Yes, individually |
| Long-Term Drift | -40 to 257°F (-40 to 125°C): Typ.<0.005% RH/year |
| Atmospheric Pressure | |
| Sensor Location | Inside the USB interface housing |
| Operating Range | Temperature: -4 to 158°F (-20 to 70°C) Pressure: 45 to 110 kPa, for full accuracy Extended pressure: 1 to 120 kPa, linear range of ADC |
| Accuracy | 70 to 110 kPa at 77°F (25°C): Typ.: ±0.15 kPa 70 to 110 kPa, from 50 to 104°F (10 to 40°C): Typ.: ±0.18 kPa 45 to 110 kPa from 32 to 122°F (0 to 50°C): Typ.: ±0.2 kPa |
| Overpressure Limit | Pmax: 600 kPa |
| Altitude Resolution | Approximately 3.94" (10 cm) |
| ADC Resolution | 24 bits |
| Response Time | 0.5 seconds |
| Sensor Location | Inside the USB interface housing |
| Factory Calibration | Yes, individually |
| Signal Noise Filter | 1st order |
| Noise | ±0.0012 kPa |
| Long-Term Drift | ±0.1 kPa/year |
| Probe | |
| Cable | Material: Silicon Length: 3' (1 m) |
| Filters | Material: Layer 1: Punctured Anodized Aluminum Layer 2: PTFE membrane Efficiency: 99.99% for particle size ≥200 nm |
| Housing and USB Cable | |
| Operating Range | Temperature: -4 to 158°F (-20 to 70°C) Humidity: 10 to 90% RH, non-condensing |
| Material | ABS |
| IP Rating | 51 |
| USB Cable Length | 3' (1 m) |
| Power Supply | |
| Voltage | Powered through a USB port, 5 V |
| Current | At 5V, 15 mA |
| Miscellaneous | |
| Temperature Compensated | Yes, by the manufacturer |
| Lifetime | 5 years |
| Certification | RoHS3 |
| Temperature (probe) | |
| Operating Range | -40 to 257°F (-40 to 125°C) Extended temperature: -49 to 266°F (-45 to 130°C) |
| Accuracy | -40 to 68°F (-40 to 20°C): Typ.: ±0.36°F (±0.2°C) Maximum: ±0.54°F (±0.3°C) 68 to 140°F (20 to 60°C): Typ.: ±0.18°F (±0.1°C) Maximum: ±0.54°F (±0.3°C) 140 to 257°F (60 to 125°C): Typ.: ±0.72°F (±0.4°C) Maximum: ±1.08°F (±0.6°C) -40 to 257°F (-40 to 125°C): Typ.: ±0.72°F (±0.4°C) Maximum: ±1.08°F (±0.6°C) |
| Resolution | Typ.: 0.027°F (0.015°C) |
| Repeatability | Typ.: 0.108°F (0.06°C) |
| Response Time | t63%: 10 seconds |
| Factory Calibrated | Yes, individually |
| Long-Term Drift | Maximum: <0.054°F/year (<0.03°C/year) |
| Relative Humidity (probe) | |
| Operating Range | 0 to 100% RH, non-condensing |
| Accuracy | 0 to 80% RH at 77°F (25°C): Typ.: ±1.5% RH Maximum: ±2% RH 80 to 100% RH at 77°F (25°C): Typ.: ±2% RH Maximum: ±3% RH 0 to 80% RH from 50 to 122°F (10 to 50°C): Typ.: ±1.5% RH Maximum: ±2% RH 0 to 100% RH from 32 to 176°F (0 to 80°C): Typ.: ±2% RH Maximum: ±3% RH |
| Resolution | Typ.: 0.01% RH |
| Hysteresis | At 77°F (25°C): 0.8% RH |
| Factory Calibration | Yes, individually |
| Long-Term Drift | -40 to 257°F (-40 to 125°C): Typ.<0.005% RH/year |
| Atmospheric Pressure | |
| Sensor Location | Inside the USB interface housing |
| Operating Range | Temperature: -4 to 158°F (-20 to 70°C) Pressure: 45 to 110 kPa, for full accuracy Extended pressure: 1 to 120 kPa, linear range of ADC |
| Accuracy | 70 to 110 kPa at 77°F (25°C): Typ.: ±0.15 kPa 70 to 110 kPa, from 50 to 104°F (10 to 40°C): Typ.: ±0.18 kPa 45 to 110 kPa from 32 to 122°F (0 to 50°C): Typ.: ±0.2 kPa |
| Overpressure Limit | Pmax: 600 kPa |
| Altitude Resolution | Approximately 3.94" (10 cm) |
| ADC Resolution | 24 bits |
| Response Time | 0.5 seconds |
| Sensor Location | Inside the USB interface housing |
| Factory Calibration | Yes, individually |
| Signal Noise Filter | 1st order |
| Noise | ±0.0012 kPa |
| Long-Term Drift | ±0.1 kPa/year |
| Probe | |
| Cable | Material: Silicon Length: 3' (1 m) |
| Filters | Material: Layer 1: Punctured Anodized Aluminum Layer 2: PTFE membrane Efficiency: 99.99% for particle size ≥200 nm |
| Housing and USB Cable | |
| Operating Range | Temperature: -4 to 158°F (-20 to 70°C) Humidity: 10 to 90% RH, non-condensing |
| Material | ABS |
| IP Rating | 51 |
| USB Cable Length | 3' (1 m) |
| Power Supply | |
| Voltage | Powered through a USB port, 5 V |
| Current | At 5V, 15 mA |
| Miscellaneous | |
| Temperature Compensated | Yes, by the manufacturer |
| Lifetime | 5 years |
| Certification | RoHS3 |
