Applications
· Floor Coatings
· Concrete Overlays
Features & Benefits
· Ensures Structure is dry before starting next construction phase.
· Uniquely designed system to handle concrete bore hole humidity measurements.
· Re - usable Probe for improved economics.
· Rapid Response Time of Probe.
· High accuracy and Long term Stability of Probe.
· Conforms to ASTM Standard F-2170 Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs.
The James Instruments Humiditest? System allows the concrete practitioner to monitor and ensure that a new structure is dry enough to proceed with the next phase of construction. This is especially critical for concrete structures requiring a coating, carpeting or similar floor or covering treatment. Installing such treatments before the concrete is sufficiently dry will typically cause expensive failures in the covering treatment. The only accurate way to ensure that the concrete is sufficiently dry enough to safely avoid expensive re-work is via a bore hole humidity test system, such as theHumiditest System?.
The system works by first boring a hole into the concrete and inserting a plastic tube in the hole. The plastic tube is then plugged and the system is set to stabilize and the humidity to reach equilibrium. The probe is then inserted into the plastic tube, left to stabilize for a short period of time, and then a reading is taken.
The sleeve is recommended to give readings at various depths in the concrete. As concrete moisture distribution is typically very uneven it is recommended to take readings at different depths depending on the structures exposure.
Specifications
Probe | ? |
Measurement Range | 0a€|100% RH |
Accuracy | ? |
0-90% | +/-2%RH |
90-100% | +/-3%RH |
Long Term Stability | ( 1 Year ) 1%RH |
Response Time (90% of Reading at 20° C) | 15 S |
Response Time
(Stabilized Hole, full reading) | 30min |
Temperature Range | -20°C to +60°C |
Sensor Diameter | 12mm |
Cable Length | 0.3m |
Probe Length | 69mm |
Housing Material | ABS Plastic |
Sensor Protection Membrane | Filter |
Bore Hole Diameter | 16mm |
Measurement Depth min. | 30mm |
Meter | ? |
Calculated Quantities | Dew point |
Temperature | Absolute |
Temperature | Wet Bulb |
Temperature Resolution | 0.1%RH / 0.1°C |
Power Supplies | 4 AA Batteries |
Display | 2 line LCD |
Approximate Weight | 300 g. |
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