. Electronic apparatus for biological research. Electronic apparatus and appliances; Biology -- Research. MEASUREMENT AND CONTROL OF TEMPERATURE electric heater on a basis of 10 W per litre and leaving the tank (stirred) to obtain its highest equilibrium temperature. A rough calculation based on this information (W lost per hour per temperature unit above ambient) will enable one to obtain the size of heater for the temperature range required. Up to 50 W might be switched direct on a bimetel thermostat (Figures Figure Layout of tube-enclosed heater (lih), stirrer {s) and thermosta


. Electronic apparatus for biological research. Electronic apparatus and appliances; Biology -- Research. MEASUREMENT AND CONTROL OF TEMPERATURE electric heater on a basis of 10 W per litre and leaving the tank (stirred) to obtain its highest equilibrium temperature. A rough calculation based on this information (W lost per hour per temperature unit above ambient) will enable one to obtain the size of heater for the temperature range required. Up to 50 W might be switched direct on a bimetel thermostat (Figures Figure Layout of tube-enclosed heater (lih), stirrer {s) and thermostat element (ts) in an aquarium tank -• •- Heater V n Figure Simplest thermostat circuit in which the switches the heater directly tsc ,_ 0 r\ y X! > Heater Hg Figure Schematic layout for control by robust mercury-toluene regulator {t, Hg). Temperature setting by the insulated screw contact {tsc) and relay (r) current adjusted by resistance R bmc. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Donaldson, Peter Eden Kirwan. New York, Academic Press


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