9600 Service Manual - gmecorp-usa.com

8 Generator Calibration
11. Observing the correct polarity insert the Dynalyzer tank cable connectors into the
wells of the High Voltage Tank. Be careful not to cross-thread the nuts securing the
cables to the tank. Tighten with the cable spanner wrench (part number 00-877674).
12. Clean the Dynalyzer wells with clean paper towels and Freon. Avoid contaminating
the wells by touching the well surfaces with bare fingers.
13. Clean the High Voltage cable connectors and apply silicone compound. Observing
the correct polarity install the connectors into the “Tube” side wells of the Dynalyzer
tank. Be careful not to cross-thread the nuts securing the cables.
NOTE: You may need to cut one or two cable-ties perform step 13.
14. Plug the Dynalyzer tank, DRO and Auto-cal Interface Box into a 120 VAC outlet.
Turn ON the power to all the calibration equipment and allow 30 minutes to warmup.
The power outlet strip in the Workstation may be used for this purpose
15. Set the mA switch on the Dynalyzer tank to Fluoro (see Figure 2) and zero the mA
value (±.2mV) by adjusting the “F” mA zero trimpot. Use a DVM set to measure DC
millivolts and measure at the BNC connector near the switch (see Figure 2).
16. Set the mA switch on the Dynalyzer tank to Rad (see Figure 2) and zero the mA
value (±.2mV) by adjusting the “R” mA zero trimpot. Use a DVM and measure at
the BNC connector near the switch (see Figure 2).
CAUTION: Do not use the Dynalyzer if both readings do not zero out.
NOTE: The calibration software will indicate on the left monitor of the Workstation which
mA switch setting (RADIOGRAPHIC/FLUORO ) on the Dynalyzer tank to use during
different stages of the calibration. Set the mA switch setting as requested.
17. Set the controls on the Dynalyzer III DRO (see Figure 3) as follows:
Displays: A+C
mA/mAs mA
Trigger Source: kVp
Procedure: NORMAL
Trigger Mode: PRESET
kV Delay: 20 ms
Window Delay: OFF
Trigger Level: 30
Printer AUTO
18. Press the RESET button on the DRO (see Figure 3). All digits should display 0.
19. Turn the X-ray Switch Override on the Autocal Interface Box to ON (see Figure 4)
and place the D/A -Dosimeter switch to D/A.