Fisher Bioblock Scientific Stemi 1000, Operating Manual

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Stemi 1000, Stemi 2000, Stemi 2000-C
12/98 B 40-002 e
4-2
4.2 Troubleshooting and service
Troubleshooting on the Stemis is limited to few activities:
•
Checking of the power supplies.
•
Checking of the illuminating devices.
(1) Checking of the power supplies
The checking of the power supplies is limited to the inspection of the fuses in:
Power supply 230 V – 6 V 50 VA, order No. 458420
fuse: T 400mA/L 250 V (5 x 20) mm acc. IEC 127
Power supply 120 V – 6 V 50 VA, order No. 458421
fuse: T 500mA/L 250 V (5 x 20) mm acc. IEC 127
Power supply unit, establised 6 V 20 W, 115 – 230 V,
variable 1,5 ... 6 V, 50 ... 60 Hz, 40 VA, order No. 458415
fuse: T 4,0 A/H 250 V (5 x 20) mm acc. IEC 127
Schott cold light source KL 750 (230 V), order No. 417080
fuse: T 630 mA/L 250 V (5 x 20) mm acc. IEC 127
Schott cold light source KL 750 (120 V), order No. 417081
fuse: T 1,25 A/H 250 V (5 x 20) mm acc. IEC 127
Schott cold light source KL 1500 electronic (230 V), order No. 417075
fuse;
primary: T 2 A/H 250 V (5 x 20) mm acc. IEC 127
secondary: T 10 A/H 250 V (5 x 20) mm acc. IEC 127
Schott cold light source KL 1500 electronic (120 V), order No. 417076
fuse;
primary: T 4 A/H 250 V (5 x 20) mm acc. IEC 127
secondary: T 10 A/H 250 V (5 x 20) mm acc. IEC 127.
When checking the power supplies, also check the mains cables. Defective cables must be replaced.