DATREND Systems vPad-RW, Operating Manual

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vPad-RW OPERATING MANUAL
Operation/Chapter 4
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Page 26
Ambient Air Flow and Temperature Check
The flow of air across the radiant warmer mattress is measured in terms of
Air Velocity (AV)
[section 2, clause 10.2.1], and is measured at the midpoint of the mattress. The AV at the specified
point shall not exceed 0.3 m/s. This test is performed before the (heating) temperature testing is
started. During the ambient airflow test the ambient temperature is also tested to be in the range of
18 to 30 °C
Manual Temperature Control
The manual temperature test is preset to 36 °C, as recommended by the Standard however, vPad-
RW will allow testing at other temperatures.
STC
has been previously defined. The Mid Point
Average Temperature (
MPAT
) is defined in the Standard, section one, clause 2.10.103 as:
The TEST DEVICE AVERAGE TEMPERATURE of the TEST DEVICE at the mid
point fo the EQUIPMENT mattress
Where the Test Device Average Temperature (TDAT) is defined in the Standard, section one,
clause 2.10.102 as:
The average temperature reading taken during a STEADY TEMPERATURE
CONDITION at regular intervals at the center of a TEST DEVICE
With a Control Temperature setting of 36 °C, in Manual Control Mode, the radiant warmer is
allowed to reach
STC and the MPAT is calculated. For the temperature measured at the center of
the mattress, the difference between the MPT and the TDAT for each of the other 4 temperature
measurement positions
T7 - T10
must not exceed
2 °C.
Figure 22: Edit Auto Sequences