Bibby Sterilin Distinction D4000, Assembly And Operating Instructions Manual

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14. Connect the distillate outlet of the condenser to a suitable
collection reservoir, using a suitable length of 9mm tubing.
A glass reservoir system is available from Bibby Scientific Ltd.
(Catalogue No. WR20). Please contact the sales office for
details.
15. Replace the end panel on to the unit.
16. Take the reservoir control WLS and push the free end of the
rubber tubing onto the nozzle on the left hand end of the unit
- see
figure 1 .
Use the clip provided to mount the glass pressure bell in the
neck of the distillate reservoir.
Adjust the height of the pressure bell so that the open end is
approx. 140mm below the maximum distillate level.
Electrical installation
THIS EQUIPMENT MUST BE EARTHED!
The electrical installation should be carried out by a qualified
electrician. The following method is recommended.
The equipment is supplied with 1.5m of PVC/PVC flexible, triple
core, circular cable with the following specification, 1.5mm
2 to
BS 6500 or equivalent and <HAR> or BASEC approved.
The cable gland is designed to accept cable whose diameter is
>7.0mm and <10.5mm. It is recommended that, at the connection
to the mains electrical supply, there is fitted a double pole isolation
switch with a continuous current carrying capacity of 15 amps at
250V, and that overcurrent protection is provided by either a double
pole approved fuse rated at 15A, 250V, or a double pole approved
circuit breaker of similar rating.
These devices should be sited near to the equipment and be clearly
marked “Disconnect device for ‘Distinction’ Water Still”.
NOTE: Do not connect to electricity supply with
a 13 amp plug.
Cable connections are shown in figures 3a and 3b . Connect to the
line supply noting that the wires in the instrument lead are coloured
in accordance with the following code:
Blue - Neutral
Brown - Live
Green & Yellow - Earth
Mains Cable Replacement
If the mains cable requires replacement, only cable with the
specification given above should be used.
For live and neutral leads use bootlace crimps, size 1.5mm, with a
performance conforming to BS 4G178 part 1, 1984 and part 2,
1986.
For the earth lead use 1.5mm, M4 eyelet crimps with a performance
conforming to BS 4G178 part 1, 1984 and part 2, 1986. A suitable
crimp tool should be used.
Operation
1. Turn on the cold water supply and adjust the flow to approx.
60 l/hr. Observe that the water flows via the condenser and
into the boiler. Wait until the boiler has attained its correct
operating level and make sure that the excess water is flowing
freely to drain.
2. Switch on the heating element. The on/off switch is located on
the front panel - see figure 1 .
3. After a few minutes the water will start to boil and distillate
will emerge from the condenser. With new glassware, or after
cleaning, it is advisable to allow this to run to drain for
approximately 30 minutes before beginning collection.
4. To turn off the still, first turn off the heating element but allow
cooling water to continue for a further 10 minutes to allow the
Still to cool.
WARNING!
Do not use this equipment to distil any liquid
other than water.
Safety cut-outs
The Distinction Water Still is protected by the following safety cut-
outs:
1. Reservoir level control
This should be positioned in the collecting reservoir (see
“Assembly”) and turns off the heating element when the
reservoir is full.
2. Condenser thermostat
Mounted in the condenser’s distillate outlet. Should the water
supply be interrupted steam will begin to emerge from the
condenser causing the thermostat to operate and turn off the
electricity supply to the heating element.
3. Boiler thermostat
Mounted in the boiler above the heating element. Should the
boiler water level fall and expose the element the thermostat
will operate and turn off the electricity supply to the element.
After operation of either of the thermostats, normal operation may
be resumed by resetting the thermostat by means of their respective
reset buttons mounted on the right hand end panel of the electrical
compartment.
Remove the black plastic cover and then press the red button - a
slight click will be heard if the thermostat had operated.
Before resetting either thermostat the still should be
allowed to cool completely and the cause of the cut-
out operation identified and rectified.
If the thermostats continue to operate, consult a qualified electrician
or the Technical Service Department of Bibby Scientific Ltd.