GENEQ > Environnement > Air - Qualité
| Thermohygromètres TH-Calc |
| modèle 7415 et 7425 |
| Model 7425 |
| Features and Benefits |
| • Reliably measures temperature and humidity • Calculates wet bulb temperature • Easy to read display shows parameters simultaneously Added Features Model 7425 • Directly calculates dew point • No psychometric chart needed • Calculates % outside air • Logs data with time and date stamp • Stores 12,700+ samples and 100 test IDs • LogDat2™ downloading software included |
|
The Model 7415
Thermohygrometer is a basic instrument that accurately and reliably measures temperature and humidity. It is ideal for use in thermal comfort studies and HVAC system performance testing. The Model 7425 Thermohygrometer is a diagnostic instrument with advanced capabilities, such as data logging, review of statistics and downloading to a PC using LogDat2 software (included). Applications • Conducting thermal comfort studies • Conducting IAQ evaluations • Verify building HVAC system performance • Troubleshooting heating and cooling systems • Monitoring air conditions for manufacturing processes |
| Specifications TH-CALC Models 7415 and 7425 |
|
| Temperature | |
| Range | 32 to 140°F (0 to 60°C) |
| Accuracy | ±1.0°F (1 0.6°C) |
| Resolution | 0.1°F (0.1°C |
| Humidity | |
| Range | 5 to 95% RH |
| Accuracy2 | ±3% RH |
| Resolution | 0.1% RH |
| Instrument Temperature Range | |
| Operating (Electronics) | 40 to 113°F (5 to 45°C) |
| Operating (Probe) | 14 to 140°F (-10 to 60°C) |
| Storage | -4 to 140°F (20 to 60°C) |
| Data Storage Capabilities (7425 only) | |
| Range | 12,700+ samples and 100 test IDs |
| Logging Interval (7425 only) | |
| 1 second to 1 hour | |
| Time Constant (7425 only) | |
| User selectable | |
| External Meter Dimensions | |
| 3.3 in. x 7.0 in. x 1.8 in. (8.4 cm x 17.8 cm x 4.4 cm) | |
| Meter Probe Dimensions | |
| Length (including handle) | 11.15 in. (28.3 cm) |
| Diameter of Tip | 0.75 in. (19.0 mm) |
| Meter Weight with Batteries | |
| 9.6 oz. (270 g) | |
| Power Requirements | |
| Model 7415 | Four AA-size batteries |
| Model 7425 | Four AA-size batteries or optional AC adapter |
| 7415 |
7425 |
|
| Temperature |
• |
• |
| %RH, wet bulb |
• |
• |
| Dew point |
• |
|
| % outside air |
• |
|
| Data logging/downloading |
• |
|
| Review data |
• |
|
| Statistics |
• |
|
| Field calibration adjustment |
• |
• |
| Free Certificate of Calibration |
• |
• |
| • 1 Accuracy with
instrument case at 77°F (25°C), add uncertainty of 0.05°F/°F
(0.03°C/°C) for change in instrument temperature. • 2 Accuracy with probe at 77°F (25°C). Add uncertainty of 0.1% RH/°F (0.2% RH/°C) for change in probe temperature. Includes 1% hysteresis. |
||