Operating instructions for Grumbach Incubators - Lyon

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Temperature Control Once your machine is sited, plug the Incubator into the mains and turn on the mains power switch. If digital readers are fitted these will light along with the power switch. Leave the incubator running for several hours to heat up and allow the internal temperature to equilibrate. The ‘Thermo Light’ will be lit continuous while the incubator is heating up and will start to flash on/off as it reaches the temperature it is set at. The temperature settings will be set either at or very close to 37.5 C in the factory prior to shipment. The two knobs marked coarse and fine are your temperature controllers. The coarse knob should be used to adjust the temperature to close to the desired temperature and then the final adjustments made with the fine knob. Whenever making adjustments please ensure you check the temperature regularly after, as the increase or decrease is not instant and will take a few minutes to equilibrate throughout the entire incubator. Each incubator is fitted with two additional safety thermostats. On the left hand side panel a mechanical safety thermostat is fitted. This will stop your incubator from overheating if there was a failure with the electronic primary thermostat. This is preset at the factory and should not need altering. A third electronic thermostat is fitted close to the fan housing. This is a safety feature and will stop the any heater damage should the fan stop working. This is fitted under E.E.C. law and should not be tampered with. Thermometers Each incubator comes with a laboratory high-grade mercury thermometer. These thermometers are very precise and we strongly advise that if you have a digital thermometer fitted to your machine, that you calibrate it to the same reading as the mercury thermometer. The thermometer fits into the bracket supplied on one of the turning trays and should be viewed straight on to see the blue mercury. Whenever cleaning the thermometer only use cold water. Digital thermometers have a far quicker reaction time to small changes in temperature than mercury thermometers. Once the desired temperature established within the incubator (set by the mercury) calibrate the digital unit to the same reading if required. To calibrate simply remove the black plastic frame that surrounds the red plastic front, this clips off by mildly prising it with a knife or screwdriver then remove the plastic front. Then simply use a screwdriver to turn the adjusting screw clockwise to turn the thermometer reading up or anti clockwise to turn it down. Once the desired reading is achieved replace the front. This is safely achieved with the incubator turned on. Fig 4. Mercury Thermometer in bracket. Fig 3. Digital thermometer with front removed Adjusting screw
Auto Turning When setting up the turning tray with the rollers, make sure that the rollers are at right angles to each other. Simply count the number of spaces between rollers so each end of the rollers are the same number of slots apart from each other. The desired distance between rollers is dependant on the size of egg you are incubating. The egg should sit on the rollers with the bottom of the egg not touching the turning tray. To minimise ‘egg creep’ along the rollers it is best to alternate each egg so the top of one egg faces the front of the incubator and the next the back and so on. When placing the turning tray into the incubator make sure that the brass rod on the turning tray enters into the fork on the turning arm. The auto turning will only work when the switch on the control panel is turned on and it lights up. To set the frequency and length of turn the timing clock on the side of the incubator will have to be set. The 24-hour time clock has I digit per 15 minutes around the out side of the clock face. When one digit is pushed in this is equal to the turner moving for that period of time. 15 minutes of turning equals approximately half a stroke. For small eggs such as quail and partridge this is about a 180degree turn. For the larger eggs a full stroke (two digits pushed in) will be needed for each turning session. Please remember to start the turner at one side for larger eggs as if set off in the middle of its stroke each 30-minute turn will end back at the middle of the incubator. As a rule of thumb a chicken egg will need two digits in then the next four out (no turning) and so on around the clock. This will give you half an hour turning (one stroke) and one hour of no turning. But the frequency and amount of turning is down to your individual choice. Fig 4. Eggs on rollers Fig 5. Turning Timer Fig 6. Turning Fork with tray in correct position
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Page 5: Cool Down Timer Cool down timers ar

Operating instructions for Grumbach Incubators - Lyon

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