If you are not sure on what item to buy, please see our Purchasing Notes below or contact us and we'll be glad to assist you on your order.
If you are not sure on what item to
buy, please see our
Purchasing Notes below or contact us and we'll be glad to
assist you on your order.
Humiditest System™
The tailor made
solution for measuring bore hole humidity in
hardened concrete.

-
Floor Coatings
-
Concrete Overlays
-
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 the Humiditest
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.
|
Probe
|
|
|
Measurement
Range
|
0…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.
|