molbox1+™ Flow Terminal
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Technical Data molbox1+™ Flow Terminal ± 0.125 % of reading—lowest uncertainty for gas flow calibration The new molbox1+ flow terminal from Fluke’s DH Instruments Division represents a significant update to the molbloc/molbox gas flow calibration system. molbox1+ combined with molbloc flow elements enables you to achieve the lowest uncertainty available for gas flow meter and controller calibrations. A special configuration, molbox1+S, allows you to use molbloc-S sonic nozzle flow elements at higher pressures than were previously possible, greatly extending their usable flow range. A molbloc/molbox1+ gas flow calibration system is the ideal solution for calibrating flow meters, thermal mass flow controllers (MFCs), rotameters, turbine meters, bubble meters, and other flow measurement devices. With real-time measurements, no moving parts and supported by traceable calibration in several different gases and operating pressures, molbloc/molbox can handle virtually any calibration application without compromise. molbloc/molbox systems are widely used in many industries, including pharmaceuticals, semiconductors, aerospace, environmental monitoring, energy production, reference gas blending, and research and standards laboratories. molbox1+ features at a glance • ± 0.125 % of reading uncertainty on mass flow measurements with molbloc-L and molbloc-S elements with premium calibrations • molbox1+S configuration gives extra rangeability with molbloc-S elements without requiring vacuum pumps • Now use any molbloc element for both high and low pressure applications in the same gas • Even more robust internal pneumatic design • Full suite of software automation products and hardware accessories to create a complete gas flow calibration system—including new COMPASS® for Flow calibration assistance software

2 Fluke Corporation DH Instruments molbox1+ Flow Terminal Unparalleled uncertainty specifications molbox1+ innovations enable the molbloc/ molbox1+ system to achieve the lowest gas flow measurement uncertainties in the industry. The lower uncertainty is made possible by several key improvements, including: • Use of DHI’s exclusive quartz reference pressure transducer (Q-RPT) technology to precisely measure both absolute and differential pressure. molbox1+ Q-RPTs are specially characterized sensors benefitting from the same technology used in DHI’s pressure transfer standards. • “Premium”...

3 Fluke Corporation DH Instruments molbox1+ Flow Terminal COMPASS® for molbox and new COMPASS® for Flow software add automation and more COMPASS calibration assistance software takes molbloc/molbox to the next step in automating calibrations. COMPASS and a personal computer work with molbloc/molbox to create a modern, full function, turnkey system for calibrating and testing flow devices. COMPASS sets up device under test (DUT) records (also known as unit under test), defines and associates test procedures with DUTs, runs tests, acquires reference and test data, produces standard and custom...

4 Fluke Corporation DH Instruments molbox1+ Flow Terminal General specifications Power requirements 85 V ac to 264 V ac, 47 Hz to 440 Hz, 18 VA max consumption Normal operating temperature range 15 °C to 30 °C (59 °F to 86 °F) Storage temperature range -20 °C to 70 °C (-4 °F to 158 °F) Vibration Meets MIL-T-28800D Weight 6.8 kg (15 lb) max Dimensions (WxHxD) 32 cm x 12 cm x 30 cm (12.6 in x 4.7 in x 11.8 in) approx. Communication ports RS-232 (COM1), RS-232 (COM2), IEEE-488.2 Pressure connections (molbox1+ and molbloc) Quick connectors equivalent to Swagelok® QM Series (SS-QM2-B200) Flow...

5 Fluke Corporation DH Instruments molbox1+ Flow Terminal Temperature measurement Type molbloc PRTs with molbox1+ Ohmic Measurement System Range (FS) 0 to 40 °C Resolution 0.01 °C molbloc PRT precision ± 0.02 °C (15 to 30 ¢ªC) On-board Reference resistor 100 and 110 W ± 0.01 %, stability < 25 ppm/year Ohmic measurement ± 0.02 % of reading (15 °C to 30 °C) Flow measurement with molbloc-L laminar flow elements Standard molbloc calibration Premium molbloc calibration Range 0 to 100 % molbloc full scale 0 to 100 % molbloc full scale Resolution 0.0015 % FS 0.0015 % FS Precision1 ± 0.07 % of...

Ordering information Options and accessories 3078336 MFC Control Option Set and read analog voltage and current MFCs. Optional board is built-into molbox1+ and connector is on rear panel. Delivered with MFC cable and connection kit. 3069585 Rack Mount Kit Standard 19 in. rack mount kit for molbox1+. Panel is 5.25 in. (3U) high. New molbloc calibration options Each molbloc calibration option can now be ordered as standard or premium. Premium molbloc calibrations result in an improved uncertainty specification when the molbloc is used with a molbox1+ terminal. molbloc pressuredependent...