Siemens PORTARAY HELIODENT 70 Maintenance Instruction page 45

Pulses
Exposure time
_|50HZ!60HZ|
Tolerance
|
+
1
pulse
0.066 sec.
Susi
4
- 2 Bons:
3,2
sec.
160
| 192 | + 10 pulses
|
- 20 pulses
Caution:
Observe the cooling time between exposures.
Relative power duration:
1 : 60 / min. cooling period 20 sec.
For example, 3,2 sec. exposure time — a pause of 3
1/2 min.