Size: 4.5" X 6" X 15" (10.16 X 15.24 X 38.1 cm)
Weight (less reaction vessel): 1 lb. 5.1 oz. (600 gm)
Construction Materials: Clear acrylic plastic, stainless steel, brass, and DelrinŽ
Units expressed: GU (convertible to cc by 2.35 factor or via reference to optional calibration curve)
Full scale gas capacity: 242.1* cc at 100 GU
Manometer fluid: CO2 saturated distilled H20 containing .6% (vol.) fluorescein dye/bactericide and .4% surfactant (Sodium tetradecl sulfate, Triphenylmethane and p-tert-actylphenoxy polyetnoxyethanol alcohol respectively)
Manometer fluid capacity: 260 cc +/- 5 cc
Manometer hysteresis: <+/- .05% of full scale
Operating temperature: 4° C to 60° C
*Note: Exact gas displacement is a function of the free volume of the connecting tubing and the reaction vessel used. The difference between the 1/2 pt. jar and the SS reaction vessel is 1.53% at full scale; i.e. it requires 242.1 cc to reach 100 GU when using the 460 cc capacity SS vessels vs. 238.4cc in the glass 1/2 pt. jar. Therefor it is important to calibrate the instrument with the vessel with which it is to be used if accurate conversion to cc is required.
The following specifications apply to the sensing element and associated electronics.
Size: 4.72" W X 3.15" H X 2.28" D (120 X 80 X 58)
Weight: 1.1 lb. (.5 kg)
Chassis material: Polycarbonate
Interface support stand material: 16 gage Brushed 304 Stainless Steel
Power required: 110/120V 50/60 Hz. or 210/240 V 50/60 Hz, 300 mA
Accuracy (Including hysteresis, linearity and repeatability): +/-.25% of reading
Temperature coefficient (zero): typically .01%/° C
Temperature coefficient (span): typically .01%/° C
Long term drift: ~ .2% per annum
Signal output: Analog, proportional 0 to 5V
This is an appropriate signal level for most stripchart recorders or computer A/D data logging cards. Three Links will gladly quote complete gassing power systems that may include recorders, PC/A/D card/software combinations etc. to customer specification.
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