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The Bios DryCal
ML-500 primary flow calibrator is a high precision, cost effective primary
gas flow calibration standard that provides NIST traceable calibration
records with an accuracy of better than 0.5%. Using dry-piston technology
the Bios DryCal Met Lab series brings advantages of high speed flow measurements
and unsurpassed accuracy to the calibration laboratory in a primary (dimension-based)
self validating instrument.
The Bios DryCal ML-500 offers continuous readouts of flow rate, flow average, and the averaged number of readings for both volumetric and STP corrected flow. The Bios DryCal ML-500 has three interchangeable flow cells providing measurements from 5.0 sccm to 50 L/min. Bios DryCal flow cells use a patented, near frictionless dry-piston and precision photo-optic sensors to obtain volumetric flow readings quickly and accurately. The readings are direct and primary; no assumptions about gas characteristics are needed and there is no mechanism for significant calibration drift. Flow is measured directly as volume per unit time. Internal self-tests by the Bios DryCal ML-500 (patent pending) automatically validate each readings accuracy. Flow is displayed directly at room conditions and at STP conditions. The standardizing sensors are located in the measured gas stream, directly the the entrance to the measuring cylinder for highest accuracy. |
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FEATURES
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Simple Operation
Bios DryCal ML-500 provides accurate volumetric flow readings with the push of a button. Fast
Alphanumeric Display
(LCD) Three Interchangeable
Flow Cells Manufactured to ISO 17025
Standards Built-in Gas Conversion
Capability Patented Graphite Composite
Piston Assembly RS-232 PC Data Logging
Interface or Internal Measurement Mode Automatic Sampling
Built-In Leak Test
Hands-free Auto-Mode
Built-in Parallel Port
NIST Traceable CE Approved |
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| MODELS |
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| SPECIFICATIONS | Size 5¼"
W x 10¾" D x 13½" H · 13.3 cm W x 27.3 cm D x 34.3
cm H
Weight 7.7 lbs · 3.5 kg Configuration Interchangeable modular flow cells, all calibrated elements except time base are in cell Suitable Gases Non-corrosive,
humidity less than 80%, non-condensing Operating Temperature 16° to 30° C for specified Standard Conditions accuracy, to 50° C for specified volumetric accuracy Time per Reading Approximately 1 to 15 seconds, flow-dependent Operating Modes Single cycle, continuous cycling or 1 to 255 minute intervals Measuring Cell Graphite piston in borosilicate glass cylinder. Clearance-sealed Temperature and Pressure Sensors Solid state, located at entrance to measuring cell Valve Latching design (to prevent heating of gas stream), self-relieving Battery System Internal continuously chargeable sealed lead-acid battery AC Charger/Adapter Choice of 100 VAC, 50Hz or 100 - 125 VAC, 60 Hz or 200 - 240 VAC 50 - 60 Hz Note: The standard 120V charger receptacle prongs fit the U.S., Canada, and Japan, while the standard 240V prongs fit much of Europe (with the exception of the U.K). For those requiring alternate prongs, there is an adaptable universal charger that will handle voltage from 100 to 240, with interchangeable prongs to fit usage in almost any country available for an additional cost. For pricing information, please contact us. If you wish to receive the universal charger with your DryCal orders, please provide a description or image of the prong requirement.Self-Tests Leakage & dynamic verification of accuracy Outputs Illuminated LCD Display, RS-232 serial port, printer or CSV formats for logging Warranty Product, 1 year; battery, 6 months Absolute Accuracy, Single
Readings*
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