Measurement range | 0 ... 100 %RH |
Accuracy (incl. non-linearity, hysteresis, and repeatability): | |
temperature range | 0 °C ... +40 °C |
0 ... 90 %RH | ± 1.5 %RH |
90 ... 100 %RH | ± 2.5 %RH |
temperature range | -40 °C...0 °C and +40 °C ... +80 °C |
0 ... 90 %RH | ± 3.0 %RH |
90 ... 100 %RH | ± 4.0 %RH |
Factory calibration uncertainty at +20°C (68°F) | |
0 ... 90 %RH | ± 1.1 %RH |
90 ... 100 %RH | ± 1.8 %RH |
Humidity sensor | HUMICAP® 180R |
Stability | ± 2 %RH over 2 years |
Measurement range | -40 °C ... +80 °C |
Accuracy over temperature range: | |
0 ... +40 °C | ± 0.2 °C |
-40 ... 0 °C, +40 ... +80 °C | ± 0.4 °C |
Temperature Sensor | Pt1000 RTD 1/3 Class B IEC 751 |
Operating temperature range for probe | -40 °C ... +80 °C |
Probe weight with standard cable | 31 g |
Probe housing material | stainless steel |
Probe filter and sensor protection | membrane filter with chrome |
coated ABS plastic | |
Cable material | Wire PVC / jacket PU |
Cable connector | TRRS male 3.5 mm |
Probe housing classification | IP65 |
Borehole diameter needed | 16 mm |
Measurement depth with standard accessories | min. 30 mm, max. 90 mm |
Operation temperature range for indicator | -10 ... +60 °C |
Storage temperature range | -30 ... +70 °C |
Weight | |
Indicator with adapter | 240 g |
SHM40 case with standard content | 3.7 kg |
Indicator materials | PC/ABS blend, acrylic display lens |
Indicator adapter materials | Nickel plated brass and plastic overmolding |
Indicator housing classification | IP54 |
Mechanical drop endurance | 1.0 m without the probe |
Power-up time | < 3 s |
Alkaline batteries | 2 x AA sized, 1.5V (LR6) |
Operation time (Alkaline batteries) | typical 100 hours |
(without backlight) | |
Calculated variables | Td, Tw, a, x, h |
Menu languages | English, German, French, Finnish, Spanish, Swedish, Chinese (simplified), Russian, Japanese |
Display | LCD (140 x 160 pixels) |
Electromagnetic compatibility (EMC) |
European Union directive EN61326-1 for portable equipment |
HM40 indicator with adapter and cable probe | HM40S |
RH&T probe with cable | HMP40S |
HM40 indicator with adapter | HM40SINDI |
Quick connector adapter | HM40SADAPTER |
Cable for RH&T probe | HMP40SCABLE |
Long cable (2.7 m) for RH&T probe | HMP40SCABLE2 |
Plastic tube set (12 pcs) | 19266HM |
Rubber plugs (12 pcs) | 233976 |
Weather-proof carrying case with SHM40 filling | 233815 |
Protective cover with lid (3 pcs) | 19268HM |
USB recharger for HM40 indicator batteries | 229249SP |
Plastic grid with membrane filter for HMP40S probe | DRW010525SP |
ACCESSORIES FOR WET CONCRETE | |
Plastic flange set (12 pcs) | 26529HM |
Long rubber plug for wet concrete (12 pcs) | 26530HM |
The Vaisala HUMICAP® Structural Humidity Measurement Kit SHM40 offers an easy and reliable solution for humidity measurements in concrete and other structures using the borehole method. In this method, a humidity probe is left in the borehole until the humidity in the hole has reached an equilibrium state and the stabilized values can be read.
The interchangeable HMP40S probes connect easily to the HM40 indicator with a snap-on connector enabling convenient use of multiple probes with one indicator. The measurement data can be displayed for example in a stabilization graph. The rugged HMP40S probes are IP65 classified and conform to the ASTM-standard F2170.
The standard contents of the SHM40 are:
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