
B–70115EN/03
9. SETTING AND ADJUSTMENT
244
(1)Start the oscillator, and wait until the gas pressure is stabilized in the
base discharge state. (Wait about 3 minutes. See DGN 905 [16–L,
16i–L] or DGN 860 [0–L].) Then, check that all discharge tubes are
continuously discharging. If a discharge tube stops discharge, turn
VR11 of the power supply corresponding to the discharge tube
clockwise until the discharge tube discharges. Adjust VR11 so that all
discharge tubes are continuously discharging in the state immediately
before blinking starts.
(2)Record the value of RFI. (a). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(3)Decrease the value of RFI by 250 mA by turning VR11
counterclockwise. Set HV OFF, set parameter No. 15223 [16–L,
16i–L] or parameter No. 250 [0–L] (bias command value) to 2790
(Note 2), and check that trigger electrode discharge continues for 5
minutes in the base discharge state. If a discharge tube stops discharge,
turn VR11 of the power supply gradually clockwise to increase the
value of RFI by 4 mA or the value of DCV by 0.7 V. Set HV OFF then
set HV ON to check that discharge continues 5 minutes. Repeat this
until checking that discharge continues 5 minutes.
(4)Set HV OFF, set parameter No. 15223 [16–L, 16i–L] or parameter No.
250 [0–L] (bias command value) to 2850 (Note 2), and wait until the
gas pressure is stabilized in the base discharge state.
(5)Record the value of RFI. (A). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(1)Start the oscillator, and wait until the gas pressure is stabilized in the
base discharge state. (Wait about 3 minutes. See DGN 905 [16–L,
16i–L] or DGN 860 [0–L].) Then, check that all discharge tubes are
continuously discharging. If a discharge tube stops discharge, turn
VR11 of the power supply corresponding to the discharge tube
clockwise until the discharge tube discharges. Adjust VR11 so that all
discharge tubes are continuously discharging in the state immediately
before blinking starts.
(2)Record the value of RFI. (a). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(3)Only for power supply 1, increase RFI by +70 mA from the value
recorded in (2). Set HV OFF, set parameter No. 15223 [16–L, 16i–L]
or parameter No. 250 [0–L] (bias command value) to 2790 (Note 2),
and check that the trigger electrode continues discharge for 5 minutes
in the base discharge state. If a discharge tube stops discharge, turn
VR11 of the power supply corresponding to the discharge tube
gradually clockwise to increase the value of RFI by 4 mA or the value
of DCV by 0.7 V. Set HV OFF then set HV ON to check that discharge
continues 5 minutes. Repeat this until checking that discharge
continues 5 minutes.
(4)Set HV OFF, set parameter No. 15223 [16–L, 16i–L] or parameter No.
250 [0–L] (bias command value) to 2850 (Note 2), and wait until the
gas pressure is stabilized in the base discharge state.
(5)Record the value of RFI. (A). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.2.6
C1500B (with a trigger
electrode), C2000C,
C3000D
9.1.2.7
C4000A