Precision Control Systems ChamberIR E4 - Manual (Page 14)

Page 13 of 19
Cooling Water Connections -
1/8” NPT tapped holes are provided for lamp reflector cooling water connections. Clean water
at 100˚F maximum, less than 100 psi must be supplied to the unit, at flow rates indicated in
specification table 2-1 for the appropriate sized Model E4 heater. Deionized water is preffered
Connect cooling water lines to water inlet and outlet ports such that water flows thru both halves
of the unit at minimum flow rates given in specification table 2-1.
!CAUTION!
Cooling Water exit temperatures not to exceed 150˚ F
NOTE
Cooling Flow is optional during short/ transient heating tests where reflector body
temperatures will not exceed 350˚F
Lamp Installation (E4-5, 10, 16, 25 and 38)
NOTE
The 2000 watt per inch lamps (2000T3 and 5MT3) should be used for intermittent operation
only with 50% duty cycle at rated voltage and a maximum on-time of three minutes, or if it is
determined that the exit water temperature remains at 150˚F or less during experimental runs,
higher duty cycles or maximum on-times may be increased accordingly. At no time should the
reflector body exceed 350˚F.
1. Remove power to the heater. Turning down the voltage to 0 VAC on a SCR controller does
not remove power from the lamps.
2. Remove both covers for the heater half that has the burned out lamp.
3. With a volt meter check to insure voltage is removed from the heater.
4. Loosen the screws on the bus bar that the lamp lead wires are wrapped around and remove wires
from the screws.