16
14. Set R2 on the meter board so that at the 10.00 VDC setpoint the FORWARD POWER
meter reads 1000W.
D. Reflected Monitor Calibration
The CPS-1001/S has a DC voltage output proportional to reflected power. This is set by the
following procedure:
1. Install 50 ohm coaxial cable from the output of the generator to the input of a RF
wattmeter. Leave the other end of the wattmeter open circuited.
2. Pin 11 of rear panel connector J1 must be grounded to enable the main power contactor
(Pin 12 is ground). Pin 4 of rear panel connector J1 must be connected to Pin 9 (RF
enable).
3. With the front panel circuit breaker in the “OFF” position, attach primary supply line to
appropriate supply mains.
NOTE: Units are shipped wired for 208V, 3 phase, 50/60 Hz
unless specified by customer.
4. Place local/remote switch in “LOCAL” position.
5. Rotate power control knob fully counter-clockwise.
6. Check that cooling water is on.
7. Turn on front panel main power breaker.
8. Turn power control knob clockwise until 200 W is indicated on the RF wattmeter.
9. Adjust RFL OUT pot (R32) until the voltage at R28 RO is equal to the voltage at R40 FO.
10. Adjust R1 on the meter board until the REFLECTED POWER meter equals the setting on
the forward meter.
Summary of Contents for CPS-1001/S/13.56MHZ
Page 18: ...17 ...