Jenway 6715 - Manual (Page 171)

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tungsten lamp replacement – Model 6700
Warning: Disconnect the instrument from the mains supply prior to replacing the lamp. Care should
be taken when removing the lamp from the holder.
Ensure the lamp is cool prior to handling.
Access to the lamp is gained via the base of the instrument.
important: Prior to turning the instrument upside down the sample chamber must be
checked and any samples removed to avoid spillage or damage.
Carefully turn the instrument over onto a protected work surface and locate the 2 posi-head Lamp
Module Retaining Screws and place carefully to one side, (refer diagram).
no attempt should be made to remove the 2 socket head screws from the base.
Gently withdraw the module from the base plate and remove the Lamp Cover Retaining Screw. Place
carefully to one side.
Remove the Lamp Cover. Locate and carefully remove the tungsten lamp from the holder. The lamp is
a plug-in fit and should be removed by gently easing it from the holder.
Carefully remove the replacement lamp from the packaging, ensuring the glass portion of the lamp is
not touched.
Important: When fitting the replacement lamp it is essential that the glass envelope is not touched.
Finger marks will damage the lamp. Should accidental damage with finger marks occur, the surface of
the lamp can be cleaned using iso-propyl alcohol.
Gently insert the lamp into the holder ensuring it is fully pushed home.
Slide the Lamp Module into position in the Lamp Cover and refit the Lamp Cover Retaining Screw.
Refit the 2 posi-head Lamp Module Retaining Screws.
Carefully turn the instrument over. Reconnect the mains supply to the instrument and power up. The
self-test power up sequence will be initiated. On successful completion the instrument is ready for use.
In the unlikely event of further failure on power up self-test, please consult the manufacturer or you
local dealer for advice.
Lamp module
retaining screw
Lamp cover
Lamp cover
retaining screw
Halogen lamp