Model 1812 Laboratory Moisture Calibrator
As calibration cylinders of known moisture content are unstable and cannot be prepared with any accuracy or repeatability, Diteco developed an instrument capable of producing a known concentration of water in a carrier gas, typically nitrogen. It can be used to calibrate other moisture monitors, or as a stand-alone moisture monitor.
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The operating principle of the calibrator is to generate a continuous flow of low level (ppm) water vapour in a nitrogen carrier gas to be used to calibrate other moisture monitors. This device can also be used as a moisture analyser if required.
Dry nitrogen is fed through a bubbler, the flow rate being adjusted to deliver a constant flow of known ppm moisture in the stream. An internal analyser measures the moisture content and the instrument delivers up to 2 l/min moisture in nitrogen to an external moisture monitor which in turn can be calibrated or validated.
Suitable for calibrating or validating any moisture monitor in the 0-1,000 ppm by volume range.
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ANALYSER: |
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Ranges |
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0-1,000 / 0-10,000 ppm(v) |
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Accuracy |
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±1% of range at 20°C |
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Ambient |
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10°C to420°C | |
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Recorder Output |
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4-20mA |
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Alarm |
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One fully adjustable relay output |
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Calibration Sample Flow Output |
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up to 2 l/min |
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Dimensions |
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365(w), 192(h), 360(d) mm |
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Weight |
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7 Kg |
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UTILITIES |
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Power |
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100-120, 220-240 VAC |
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CARRIER GAS |
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Pressure |
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0.4 to 4 Bar g maximum |
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Type |
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Dry nitrogen |
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Flow Rate |
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up to 2.5 l.min |
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Options |
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Fault alarm |
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