ID#
Description
ID#
Description
1
+5
V
,
−
15
V
,
+15
V
LEDs
10
Ambient Temperature Sensor
2
User and Status LEDs
11
Heating Chamber Temperature Sensor
3
24
V
QNET power jack
12
Channel Temperature Sensors
4
Fuse
13
3-pin Fan power connector
5
External Power indicator LED
14
8-pin Heater connector
6
Heater LED
15
5-pin Fan connector
7
Fan LED
16
4-pin Temperature Sensor connector
8
Fan LED
17
PCI connector for interfacing with NI ELVIS II
(+)
9
Heater
Table 2.1: QNET HVAC component nomenclature
Figure 2.3: General layout of QNET HVAC
2.2.1 High air flow DC fan
The QNET HVAC includes a
5
V
,
8
,
500
max
.
rpm
high air flow fan that transfers the heat from the heating element to
the heatflow channel. The fan specifications are given in Table 2.3.
The QNET HVAC incorporates a Delta BFB Series High air flow DC fan model BFB0405HHA. The complete specifi-
cation sheet of the fan is included at:
www.delta.com.tw/product/cp/dcfans/download/pdf/BFB/BFB40x40x10mm.pdf
2.2.2 Temperature Sensors
The temperature sensors used to measure the ambient, heating chamber, as well as the temperature along the
heating channel of the QNET HVAC is a high-accuracy temperature to digital converter.
QNET HVAC - User Manual
v 1.0