Ametek Amrel PLA Series Operation Manual page 143

C) As good practice, AMETEK Recommends the installation of inlet and outlet pressure meters to
monitor the pressure differential in the system.
The recommended operating temperature of the eLoad is between 36°C ~ 40°C and lower. The GPM and
Inlet Pressure can be adjusted to maintain the eLoad operating temperature within this range. Use the front
panel temperature display to MONITOR the heat sink temperature, go to (MENU→DISPLAY→METER
MODE→P+T).
As a rule of thumb, the water cooling requirements of the eLoad is a combination of pressure, GPM Flow,
eLoad operating Temperature and eLoad Loading Level. The key is to monitor the water valve operation
and eLoad temperature as a function of GPM Flow and Inlet Pressure. Please use the guidelines below
and run a couple of iterations of the water cooling cycle - to ensure the water cooling system is operating
normally.
D) The Water Valve will conduct between 30°C ~ 34°C (Valve LED Illuminated)
E) The Water Valve will close between 24°C ~ 28°C (Valve LED Off)
F) eLoad Operating Temperature @ Full Power should be 36°C ~ 40°C (based on adequate GPM Flow
and Pressure)
G) Adjust GPM Flow & Pressure to maintain eLoad operating temp at 36°C ~ 40°C
Additional Liquid Cooling Specifications
A) It is recommended that the system be check for water leaks before operation.
a. Check for water leaks by closing Water Switch – B.
b. Then opening Water Switch – A.
c. Turn the Load's power ON and check for leaks (the power of the PLW must be ON in order
for water flow into the load).
B) Flow Meter's inlet and outlet must be at least ½".
C) Install a 150-micron filter at the water inlet. (Recommend)
D) Never allow water to flow from outlet to inlet.
E) Inlet Coolant Temperature 5°C ~ 30°C
M470039-01 REV-F Page 142