Environmental Monitoring & Industrial Hygiene Instrumentation
Brandt Instruments DistributingTSI
Thermohygrometers. 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)
Features and Benefits
|%RH, wet bulb||x||x|
|% outside air||x|
|Field calibration adjustment||x|
|Certificate of Calibration||x||x|
|Range||32 to 140°F (0 to 60°C)|
|Range||5 to 95% 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)||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||7.0 in. (17.8 cm)|
|Diameter of Tip||0.75 in. (19.0 mm)|
|Meter Weight with Batteries||0.6 lbs (0.27 kg)|
7415 Four AA-size batteries
Model 7425 Four AA-size batteries or optional AC adapter
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.
Specifications are subject to change without notice.