The GE Protimeter BLD7700 HygroMaster is an easy to use hygrometer with built in data logging capability. The BLD7700 is a hand-held instrument for taking spot measurements and for logging humidity and temperature values. Quick measurements of relative humidity, dew point, mixing ratio (grains per pound/parts per million by weight) and ambient temperature are shown on a split display at the touch of a button. Surface temperature measurements can also be measured with an optional surface temperature sensor, making this instrument especially suitable for condensation risk assessment and diagnosis.
The Protimeter BLD7700 Hygromaster is a unique instrument that can be used for spot measurements of humidity and temperature and as a data logger for monitoring humidity and temperature trends. It is a versatile tool ideally suited for professionals involved in the following industries:
HVAC
Building survey/home inspection
Dampness diagnosis in buildings
Flooring installation
Specialty coating applications
Flood restoration
There are many applications where moisture and temperature trend analysis is required to gain a full understanding of a situation. The Protimeter BLD-7700 HygroMaster has a data-logging mode to meet this requirement. The user sets the instrument to record measurements as required and leaves it in place for the required period of time. The memory contents are then downloaded to a PC using optional software where the logged measurements are displayed in tabular and graphical form.
The measurements that can be displayed on the Protimeter Hygromaster are:
Relative humidity
Air temperature
Dew point temperature
Mixing ratio/absolute humidity/grains per pound
Surface temperature
Surface proximity to dew point
Relative humidity and air temperature values are displayed simultaneously when switching the Protimeter Hygromaster on. Dew point and mixing ratio/absolute humidity are displayed at the touch of a button. An optional surface temperature probe is required to display surface temperature and temperature difference measurements.
Two types of humidity probes are offered for use with the HygroMaster, the Hygrostick (POL750) and the HumiStick(POL7750-2). The HygroStick in optimized for measuring humidity in the 30-100% rh range and may be used with Protimeter humidity sleeves that are used when measuring the equilibrium relative humidity of solid walls and floors. The HumiStick is a fast responding sensor with a range of 1-100% RH making it more suitable for general air quality applications, including outputs from dehumidifiers and HVAC systems.
