Mass Flowmeter for Gases - 4140

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• Fast and accurate
• Low pressure drop
• Gas Calibration: Air, O2 , N2
• Inlet/Outlet Diameter: 0.25” (6.4 mm)
• Flow Measurement Range: 0.01-20 Std L/min
• Volume Measurement Range: 0.01 - 99.9 liters
• Pressure Measurement Range: 50-199 kPa absolute
• Temperature Measurement Range: 0-50°C
• DC Power Input: 7.5 VDC ±1.5 V, 300 mA max

Model Number: 4140
Data Sheet:

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Product Specification

4140 Mass Flowmeter PRODUCT DETAILS
The TSI Mass Flowmeter 4140 (0.01-20L/min Air, O2, N2 1/4" tube) can be used for a multitude of gas flow measurement applications. Whether measuring gas flows in a laboratory or manufacturing setting, TSI general purpose mass flowmeters provide accurate results with multiple data output options. The display versions come complete with accessories making setup and operation fast and convenient.

The TSI mass flowmeters are specified as two percent of flow rate reading. One TSI mass flow meter covers the same range as three percent (or more) of full scale devices, with better accuracy at most points. Four millisecond response ensures accuracy in fluctuating flows. This fast response time of the TSI mass flowmeter is ideal for closed-loop control systems and integrated volume measurements. Low pressure drop of the TSI mass flowmeter minimizes flow circuit back pressure and its impact on the system.

4140 Mass Flowmeter FEATURES AND BENEFITS
• Fast and accurate
• Low pressure drop

4140 Mass Flowmeter APPLICATIONS
• Medical
• Industrial
• Laboratory

4140 Mass Flowmeter SPECIFICATIONS – DIGITAL DISPLAY MODELS

Model		4140
Gas Calibration		Air, O2 , N2
Inlet/Outlet Diameter		0.25” (6.4 mm)
Flow Measurement	Range	0.01-20 Std L/min
	Accuracy — Air and O2	±2% of reading or 0.005 Std L/min, whichever is greater
	Accuracy — N2	±3% of reading or 0.010 Std L/min, whichever is greater
	Accuracy — Air and O2 mixture	N/A
	Accuracy — N2O	N/A
	Response	4 ms to 63% of full scale flow
LCD Display Units		L/min, Std L/min, cm 3 /min, Std cm 3 /min
Overall Dimensions		5” x 2” x 1.25” (127 mm x 49 mm x 32 mm)
Volume Measurement	Range	0.01 - 99.9 liters
Volume Measurement	Accuracy	±2% of reading (see Operator’s Manual for additional details)
Pressure Measurement	Range	50-199 kPa absolute
	Accuracy	±1 kPa
	Response	<4 ms to 63% of final value for step charge
Temperature Measurement	Range	0-50°C
	Accuracy	±1°C at flow greater than 1 Std L/min
	Response	<75 ms to 63% of final value for step change
Outputs	Analog	0-10 VDC flow only, zero and span adjustable via RS232
Outputs	Digital	RS232
DC Power Input		7.5 VDC ±1.5 V, 300 mA max