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.
SECTION 1 – Accessories and Spare Parts 1.1 1.
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.
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.
1.2.3.3 Sipper pump 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 a forward direction. 5. Take the sipper 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.
. Cut a small length of the sipper pump tube and push this over one end of the capillary tube. Connect this to the inlet port of the flow-through cuvette. 8. Route the tube into the two retaining clips located on the base plate at the side of the pump head. 9. Fit the sipper probe and secure using the thumbscrew. Feed the capillary tubing through the tube and up through the sipper probe, allowing sufficient length for it to pass into a suitable receptacle. For pumping: 7. 1. 3. 4. 1.
1.3 USING THE ACCESSORIES 1.3.1 Automatic 8 cell turret 0.000 0.000 When the automatic 8 cell turret is in use the 8 cell turret icon is displayed in the bottom right hand corner of the screen. The current cell position is displayed adjacent to the 8 cell turret icon. The 0 position should always be used for the zero calibration sample. ppm ABS 500 nm 0 09:02 To perform measurements using the automatic 8 cell turret, insert the cuvettes containing the samples into turret positions 1 to 7.
1.3.2 Peltier 0.000 100.0 ABS %T 400 nm 19.9 -> 120.5 09:02 ºC 2 0 . 0 0 6 8 . 0 Sipper pump 0.000 100.0 ABS %T 400 nm 09:02 1.3.3.1 This opens the peltier settings screen. Use the keys at the bottom of the screen to select the digit to be changed and use the keys adjacent to the arrow icons to increase or decrease the number. The temperature can be set in °C or °F by pressing the key adjacent to the °C icon. Repeat presses will cycle between °C and °F.
0.000 100.0 ABS %T 400 nm Confirmation will be needed to start the sipper pump. Press the key adjacent to the tick icon to confirm and start the sipper pump. Press the key adjacent to the cross icon to cancel and return to the expanded operating menu. 09:02 0.000 100.0 ABS %T To stop the sipper pump press the key adjacent to the stop icon. Ensure that the flow through cuvette contains enough sample before pressing the key below the measure sample icon. 400 nm 09:02 1.3.3.
To fine tune the amount of sample uptake press the key below the plus or minus icon to increase or decrease the amount of sample taken up. The recorded time will be adjusted accordingly. Once the fine tuning is complete, or if none is required, press the key adjacent to the tick icon to move to the next stage of the calibration sequence. 000 This stage allows an air gap to be added to the calibration sequence. If an air gap is not required press the key below the 000 icon to set the air gap to zero.
0.000 100.0 To perform a measurement place the sipper tubing into the sample and press the key below the sipper pump icon. ABS %T 400 nm 09:02 0.000 100.0 Confirmation will be needed to start the sipper pump. Press the key adjacent to the cross icon to cancel and return to the expanded operating menu. Press the key adjacent to the tick icon to confirm and start the sipper pump. The pump will run for the previously recorded sample take up time.
The pump direction is displayed by an arrow icon below the sipper peltier icon. The combined sipper peltier pump combines the functionality of the peltier and sipper pump. To open the sipper peltier settings hold the key below the sipper peltier icon for 2 seconds. The settings menu is the same as the sipper pump settings except for the peltier icon in the top left hand corner. Pressing the key adjacent to the peltier icon will open the peltier settings enabling the temperature to be set.
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