Jenway 73 User Manual

73 Series Spectrophotometer

Accessory fitting and operation manual

061 672

Safety

Please read this information carefully prior to installing or using this equipment.

1. The unit described in this manual is designed be operated only by trained personnel. Any adjustments,

maintenance and repair must be carried out as defined in this manual, by a person qualified to be aware
of the hazards involved.

2. It is essential that both operating and service personnel employ a safe system of work, in addition to
the detailed instructions specified in this manual.

3. Other than for those items defined in the maintenance procedures herein there are no user serviceable
items in this instrument. Removal of covers and attempted adjustment or service by unqualified personnel
will invalidate the warranty and may incur additional charges for repair.

4. References should always be made to the Health and Safety data supplied with any chemicals used.
Generally accepted laboratory procedures for safe handling of chemicals should be employed.

5. If it is suspected that safety protection has been impaired in any way, the unit must be made inoperative
and secured against any intended operation. The fault condition should immediately be reported to the
appropriate servicing authority.

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SECTION 1 – Accessories and Spare Parts

1.1 OPTIONAL ACCESSORIES

Part Code Description of Accessory

660 101 Internal printer

735 401 Automatic 8 cell turret

735 201 Sipper pump

735 301 Peltier

735 701 Combined sipper peltier pump

735 801 10x10mm path length cuvette holder

735 901 16/24mm test tube holder

736 001 10 x 100mm path length cuvette holder

736 101 10x10 (70µl cell holder)

736 201 Water heated 10x10 single cell holder

735 601 Boiling tube holder

736 301 Film holder

035 088 Visible calibration set

035 091 UV/Visible calibration set

060 422 Moulded cuvette rack for 16 10x10mm cuvettes

735 001 Dust cover

019 146 2GB USB memory sticks for external memory

037 551 RS232 to USB converter for use with computer without a serial port

1.2 CONNECTING THE ACCESSORIES

There are two types of accessories which can be fitted in the sample chamber – passive or active
accessories. The range of passive accessories includes 10 x 10mm single cuvette holders, single water
heated cuvette holders, adjustable path length (10 to 100 mm) cuvette holders, test tube holders,
boiling tube holders, film holders and micro-cuvette holders. The range of active accessories includes an
automated 8 cell changer, sipper pump, peltier and combined peltier sipper pump. The instrument must
be turned off before any accessories are fitted.

1.2.1 INTERNAL PRINTER

Clips

Use a small screw driver to lift the blanking panel on the
top of the instrument. Squeeze the two clips in order to
remove the blanking panel. Disconnect the printer wires
which are secured to the underside of the blanking plate.

Unpack the printer from the packaging. Turn the printer
upside down and connect the printer wires by clipping
into the connector on the printer.

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1.2.2 PASSIVE ACCESSORIES

Thumb
screw

Squeeze the grey plastic clips together so that the printer
top opens. Slot the printer into the top of the instrument
and push down until it fits flush to all four sides.

Insert the paper roll into the printer – ensuring that there
is some paper sticking out of the printer before clicking
the grey plastic back into place. Switch the instrument
on. The power and error lights on the printer will flash.
Once the instrument power on tests are complete press
the feed button to check that the paper is fed correctly.

Unscrew the thumb screw to undo the passive accessory.
Lift out the passive accessory. To fit a different passive
accessory simply place the accessory in the correct
orientation, align the thumb screw and tighten to fix in
place.

To replace the passive accessory with an active accessory
refer to section 1.2.3.

1.2.3 ACTIVE ACCESSORIES

1.

Thumb
screw

3.

Unscrew the thumb screw to undo the passive accessory.
Lift out the passive accessory. To fit an active accessory
unscrew screws 1 to 4 and lift out the metal base plate.

2.

4.

This will expose the bottom of the sample chamber with
the power supply connection needed to operate the
active accessories.

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1.2.3.1 Automatic 8 cell turret

Take the 8 cell turret base plate. Connect the power
supply in the bottom of the sample chamber to the
connector on the underside of the baseplate. Place the
base plate in the sample chamber. Replace screws 1 to 4.

Take the 8 cell carousel and place on top of the motor,
taking care to align the three ball bearings with the
grooves on the motor shaft. Gently push the carousel
down onto the motor shaft until it is located into place.
Gently rotate the carousel until there is some resistance.
The carousel is now in the correct position.

If the fitting is too tight use a small screw driver to loosen
the ball bearings before pushing the carousel down onto
the shaft.

1.2.3.2 Peltier

5.

6.

For this accessory as well as removing the passive
accessory base plate, the front panel of the instrument
must also be removed. Loosen screws 5 and 6 until the
front panel can be lifted out in the forwards direction.

Take the peltier base plate. Connect the power supply
in the bottom of the sample chamber to the connector
on the underside of the base plate. Place the base plate
in the sample chamber. Replace screws 1 to 4. Take the
peltier front panel and slot into place before retightening
screws 5 and 6.

When the accessory is fitted the instrument will look like
this.

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