Hilti HCS T1-B Serie Manual De Instrucciones página 26

With regard to all strength data displayed in the Hilti concrete sensors software, it is at the discretion of
the customer and the relevant project stakeholders to make decisions for the project on the basis of this
information.
3.6.3 Temperature
Hilti concrete sensors enable construction companies to monitor the temperature of the concrete in real
time. Monitoring the internal hydration temperature of the concrete (and the temperature differences between
multiple points in the concrete) can help ensure correct hydration and achievement of the minimum strength.
It also helps ensure compliance with construction codes, specifications, industry standards and thermal
control plans.
Thermal control plans are guidelines for construction companies to implement correct hydration and ordinarily
they are compiled by an engineer. An example of an industry standard that construction companies are
required to meet is ACI 306R (Cold Weather), which stipulates that the hydration process must be such that
the internal hydration temperature of the concrete remains within certain limits. Another example is ACI 207.1
/ ACI 116 (mass concrete), which requires the construction company to control the hydration process of
very thick concrete (typically more than 1 m (3 ft) in thickness) in such a way that the temperature difference
between the core and the surface does not exceed a particular limit and the temperature at the core does
not exceed a particular limit.
Controlling hydration to cure mass concrete might require a special concrete mix design, cooling of the
interior of the concrete or heating of the exterior of the concrete. Every 15 minutes, our sensors sample
and save a temperature data point that is used for the temperature reports/warnings and for calculating the
strength data (see above).
4 Technical data
4.1 Product properties
Dimensions (L × W × H)
Weight
Connection range
Power source
Battery life
Protection class
Storage temperature
4.1.1 Gateway maximum transmitting power and frequency band
Frequency band
4.1.2 Sensors, maximum transmitting power and frequency
T1 Bluetooth
T2 USA
20 English
HCS T1
20 mm × 42 mm ×
75 mm
(0.8 in × 1.7 in × 3.0 in)
61 g ... 243 g
(2.2 oz ... 8.6 oz)
30 m
(98 ft - 5 in)
Lithium battery, non-
rechargeable
6 months
waterproof
−20 ℃ ... 25 ℃
(−4 ℉ ... 77 ℉)
US
902 MHz
928 MHz
Maximum transmit-
ting power
Decibel-milliwatts
[dBm]
4 dBm
19 dBm
HCS T2
20 mm × 42 mm ×
102 mm
(0.8 in × 1.7 in × 4.0 in)
88 g ... 270 g
(3.1 oz ... 9.5 oz)
300 m
(984 ft - 3 in)
Lithium battery, non-
rechargeable
6 months
waterproof
−20 ℃ ... 25 ℃
(−4 ℉ ... 77 ℉)
EU
863 MHz
870 MHz
Maximum transmit-
ting power
Milliwatts [mW]
2.51 mW
≈ 79 mW
2399131
*2399131*
HCS Gateway
460 mm × 130 mm ×
300 mm
(18.1 in × 5.1 in ×
11.8 in)
33 kg
(73 lb)
300 m
(984 ft - 3 in)
Electricity supply
•/•
weatherproof
•/•
AU
915 MHz
928 MHz
Frequency band
Megahertz [MHz]
2,360 MHz
2,500 MHz
902 MHz
928 MHz