TDK-Lambda 203, Operator'S Manual, Page: 20 / 60

INSTALLATION
83489011 Rev A
4-14
IN
H
IB
IT
R
E
M
O
T
E
COOLANT
HV OUTPUT
TB 1 AC INPUT
INTERLOCK/POWER ON
TB2 1 2 3 4
A B C N GND
1 2 3 4 5
COOLANT WATER IN OUT
S
L
A
V
E
inHg psi
kPa
-30
-10
0
-5
0
15
0
50
0
20
0
100
-20
-10
0
10
20
30
!
438-528 VAC
50/60 Hz
Figure 4-2 203/303 Rear View
4.2 VENTILATION REQUIREMENTS
Ensure there is at least 5 inches (12.5 cm) of clearance at the rear of the unit for air-
flow, cables and water lines. If the power supply is to be installed in an enclosed system,
care must be taken to ensure the ambient inlet air to the power supply does not exceed
the maximum operating temperature of 55°C.
4.3 WATER COOLING REQUIREMENTS
Water with a flow rate at 2 US gallons per minute (7.6litres/min) having an exit tempera-
ture of 15 to 35°C is required to cool the instrument. This is required to maintain the al-
lowable tank temperature range of 15 to 48°C. Chilled water should not be used. (
-
If the supply is to be stored at temperatures below 4°C, the user should ensure all water
is blown out of the coolant pipes).
4.4 ORIENTATION
The power supply must be operated in a level horizontal orientation. More than a quar-
ter of an inch (6.25mm) difference in height in any direction could potentially cause an
arcing condition and/or coolant fault in the high voltage tank and should be avoided.
19” (482mm)
17” (432mm)
4.52”
(115mm)
4.21”
(107mm)
3.5”
(89mm)
6.0”
(152mm)
11.56”
(294mm)
12.22”
(294mm)