Portable heat flux sensor, with read-out unit / datalogger (HF03-LI19)

HF03 is a heat flux sensor commonly used in fire testing

HF03 is a heat flux sensor commonly used in fire testing. It is designed for short (< 10 min) monitoring and measurement in high flux environments in the heat flux range up to 10 x 10³ W/m². LI19 displays the measured heat flux. Once programmed with the sensitivity of the connected sensor, the display will show the actual value of the heat flux in W/m². LI19 is programmed via its PC user interface. It communicates over USB. We recommend downloading the latest software. LI19 may also be used to store measured data. LI19 is battery powered, using 2 x AA-type batteries. Fresh batteries allow 50 days of operation. HF03-LI19 is not rated for EEx (potentially explosive) environments; nevertheless it is often admitted, because the instrument operates on 3 VDC only.

Measurand:    heat flux

Measurement range:    0 to 10 x 10³ W/m²

HF03:
 
Rated exposure time interval:    0 to 10 min

Calibration traceability:    to ITS90

Standard cable length:    5 m

LI19:

Output on display with HF03:    heat flux in x 10³ W/m²

Stored measurement definition:    minimum maximum and average over storage interval with conversion to W/m²

A/D conversion:    16 bits

Temperature dependence:    < 0.5 % + 3 x 10⁻⁶ V over rated range

Display refreshment rate:    1 s⁻¹

Battery type:    2 x AA

Internal power supply voltage:    3 VDC

Battery life:    > 50 days (on fresh batteries)

Storage interval range:    2 to 65535 s (selectable)

Storage capacity:    3518 measurements

Rated operating temperature range:    -10 to +40 °C

User interface on PC:    LI19 software

Connection to PC:    USB 1.1 / 2.0 low speed

Suggested use:
-  verification of performance of permanently installed flare radiation monitors such as HF02
-  monitoring during fire-safety demonstrations

Areas of Application:
-  Industrial monitoring and control / heat flux and heat transfer measurement