Solartron 1253A, Operating Manual

Page: 16 / 144

[Chapter
2
]
2.2
1253 Op Man_DA
1 ACCESSORIES
The 1253 accessories are supplied with the instrument. They comprise:
a. 2 fuses, 20mm × 5mm, T1.6A, for 220V or 240V supplies
b. 2 fuses, 20mm × 5mm, T3.15A, for 100V or 120V supplies
c. 4 fuses, 20mm × 5mm, 400mA, for the Generator output
d. 2 rack mounting brackets
e. 1 slide mounting bar, for telescopic slide rack mounting
f 4 screws, M4 × 12 countersunk, to fix item e
g. 3 twin 4mm to 4mm connecting leads for front panel connections
An ac supply lead, appropriate to the destination country, is packed with the instrument.
If ordered with the 1253, a telescopic rack slide mounting kit (option 12535B) is also
packed.
2 SAFETY
The 1253 is designed in accordance with the EN61010, ‘Safety Requirements for
Electrical Equipment for Measurement, Control and Laboratory Use’, and is supplied in
a safe condition. This operating manual contains information and warnings that must be
followed by the user to ensure safe operation and to keep the equipment in a safe
condition.
The operating instructions include safety precautions where appropriate, but the
principal ones are also listed below.
2.1 GENERAL SAFETY PRECAUTIONS
1. Before switching on, ensure that the mains lead is connected to the ac supply in
accordance with the colour code.
2. Ensure that the mains voltage selector is correctly set.
3. Ensure that the mains plug is connected only to a mains outlet that has a protective
earth (ground) contact. This applies equally if an extension lead is used: the lead
must contain an earth conductor.
4. To effect earthing, the mains plug must he inserted before connections are made to
measuring and control circuits. The mains plug or external earth (as appropriate)
must remain connected until all measuring and control circuits have been
disconnected.
5. Any interruption of the earth connection (inside or outside the 1253) is prohibited.
6. When the 1253 is connected to the ac supply, the opening of covers or removal of
parts could expose live conductors. The 1253 should be disconnected from all
voltage sources before it is opened for any adjustment, replacement, maintenance
or repair. The user should not attempt adjustments, maintenance or repair of the
1253 when it is powered. If repairs are necessary, consult a Solartron Service
Centre.