MEMS Handheld Flow Meter User Manual(VA.0)
Contents
1. 8 Info Wisenstech com For all orders please provide accurate and full post address P O boxes or via a third party is not acceptable 112. MEMS FLOW SENSING PRODUCT HMEIOOO Series MEMS Handheld Flow Meter User Manual vao Wisemnsteen US Patent Pending Please read this manual for ensuring correct use of this product Make the manual available for easy access HMFI1000 series User manual e RESTRICTION ON USE 1 This product is manufactured for onsite gas flow measurement or monitor in an instrumentation It can be used for inline gas flow inspection Do not alter any hardware and software of the product Any modifications might cause damage and unexpected events 2 All practices for electronic device safety should apply A SAFETY PRECAUTION 1 The product can be utilized to measure and or monitor gas flow for the stated gases and flow rates of instrumentation or inline gas delivery It is particularly designed for the dynamic range of these applications Please do not use for other purposes such as corrosive gases Otherwise the product may not function properly or even can be damaged Please contact the manufacturer for further information 2 The operational environments of the product are illustrated in the section of product 3 Operation storage and maintenance of the product must strictly follow the instructions illustrated in this user manual Otherwise unpredicted damage and even injuries or other severe situations could be induced 4 Before using the product the user should read this user manual completely and in
3. details so that the user can well understand all the important instructions HMFI1000 series User manual e Contents PESTRICHON ON USE E 1 SAFE Ae GE ERR E N T 1 Ed KERR OR EL HE N EE RR EE E 2 Se 3 ele je dag EE 4 eelere leie 4 Be djeida W 5 91 216 Lore e so ei ae ie N ee oe ee ee ee ee De GE ee ee N er ere ere Ee 5 DiE SONS EE Ge ee DE GE ee EE EE EE ES AG ee EE Ge ER ee ie 6 PICU let ge E 6 Parts an EDICTO tee 9 Sart ANG te tele Ce eet 10 CUStOMEr SEGE geed 11 HMFI1000 series User manual e The HMF1000 handheld mass flow meter is designed and manufactured for onsite measurement for gas flowrate with multiple gas options and large dynamic range using the proprietary MEMS mass flow sensing technology The product is particularly suitable for applications in instrumentation and inline gas monitor where the multiple gas measurements specially the low flowrate measurement is required This manual provides the instructions for proper use of the products including operation maintenance and storage For further customization or other product related questions please contact the manufacturer Features Multiple gas mass flow measurement a handheld form factor Gas selection with front key board for N Air Ar H and He Excellent for instrumentation testing and onsite gas flow rate monitor MEMS mass flow sensing technology with temperature and pressure compensation High sensitivity for low flow measurement and models co
4. l press Function key for 5 seconds the offset will be measured and saved You can calibrate the offset for each kind of gases Attention Please ensure there is no flow in the flow channel when you calibrate the offset HMEIOOO series 1 2 1 Battery Status N2 Mass flow sccm Enslin UU Recorded 7 2 8 Sleep mode User manual e When the battery status shows blank on the display please recharge the battery as soon as possible When there is no flow and the meter is idled for more than 5 minutes the meter will be automatically turned into asleep mode You can turn it on by pressing the Power key for 5 seconds Parts in Package HMF1000 handheld mass flow meter User manual QC certificate AC adapter M5 to 4mm one touch connectors M5 to 6mm one touch connectors R 1 4 to 8mm one touch connectors 1 1 I 1 2 1000 sccm 3 SLPM model 2 1000 sccm 3 SLPM model 2 30 SLPM model HMFI1000 series User manual e Safety and Maintenance 10 1 Safety Precautions The product is designed for use for air speed measurement For updates of the product certification information please contact manufacturer Use for other gases such as extreme corrosive and toxic agents may cause the product malfunctioning or even severe damages The product sealing is ensured to work under working pressure of 0 4MPa The power supply for this product is 3 6V Li lon battery all precautio
5. ns and measures for electrical voltage handling should apply Attention any alternation and or improper use of the product without the permission of the manufacturer can cause unpredicted damages and even injuries or other severe situations Manufacturer or any of its employees subsidiaries shall not be hold and indemnified against such consequences due to such circumstances via improper use of the product 10 2 Cautions for charging of batteries When the battery life indicator on LCD shows low batteries should be charged promptly Do not allow battery leakage inside the meter or exposed to extreme environmental conditions 10 3 Maintenance Attention without prior permission of the manufacturer please do not attempt to alter any parts of the product as it may cause unrecoverable damages If there are questions or doubts please contact manufacturer immediately before further actions All maintenance of the sensor should be performed by trained and certified personnel by manufacturer 10 HMFI1000 series User manual e Customer Service In case of questions and or product supports please contact customer service at the address listed below We will respond your request in a timely fashion and will work with you toward your complete Satisfaction Customer service and all orders should be addressed to In US please contact Wisenstech Inc 2041 Mission College Boulevard Suite 250 Santa Clara CA 95054 Tel 1 408 969 036
6. ower supply User interface Operational temperature Storage temperature Max Working Pressure Safety rating Dimension Weight Menu operation 7 1 Interface illustration The display includes gas type mass flow rate flow rate records and battery status Mass flow rate can be recorded by pressing the Record key The gas type can be selected via the gas selection keys of the Left Right keys The five function keys on the front keyboard are illustrated in the graphics at the right User manual m O 1000 sccm 0 3 SLPM 0 30 SLPM 2 0 5FS 8 msec gt 100 1 3 6V Li ion rechargeable battery Front keyboard 0 50 C 10 80 C 0 4 MPa IP65 92x128x24 mm 200 g Gas type Battery status N2 Air Ar H2 He EEE Mass flow sccm CCCs OT OOOO OO Recorded sccm MOC OT OOOO OO Left key Function key Mass flow rate Flow rate records Right key Flow record key Power key HMFI1000 series User manual e 7 2 Operation The following contents describe the details for each steps Please read carefully before process 7 2 1 Power on and power off N2 Press the Power key for 5 seconds the meter will be powered on and Mass How the display as shown will be on The meter can also be powered off by pressing the Power key for 5 Recorded seconds 7 2 2 Mass flow rate measurement N2 epp The meter will show the instant mass flow
7. rate in the display whenever Mass flow Sten the meter is connected to a flow channel and flow is present dd LILI di Recorded sccm ll NEE 7 2 3 Record current mass flow rate Press the Record key the current flow rate will be recorded and N2 NEE Mass fow ee displayed in the recorded line 21 OO Ah did Recorded sccm The recorded value will be refreshed when pressing the Record key l dd f LILI again ah ad HMEIOOO series 7 2 4 Gas selection User manual e N2 Mass flow Recorded The desired measurement gas can be selected via the Left Right keys the gases can be measured are N Air Ar H and He Mass flow Recorded 7 2 5 Gas split ratio 7 2 6 Offset calibration N2 Mass flow Recorded sccm The Function key can be used to measure a gas Split ratio For instance first connect the meter to the GC gas column flow and when it stablizes press Record key and then re connect the meter to the split vent and press Function key the gas split ratio will be shown in the lower row and you can dial the split vent until a desired ratio is reached For example if the ratio is 1 00 2 70 the display will be 100 270 If the split ratio is less than 1 1 an error message of 888888 will be displayed Close the cover of the flow channel or ensure there is no flow in the flow channe
8. ver different flowrate applications Instant flowrate totalizer and via easily accessible interface Split gas ration for gas chromatography mass spectrometers Record data access with front keyboard for data safety G 6H Portability design with battery operation HMEIOOO series Applications GC MS Instrumentation Laboratory Working principle Flow direction User manual e Air sampler Pharmaceutic Chemical Leak detection th Research a A FE Process control HMF1000 series handheld mass flow meter measures gas mass flowrate with option for selectable gases using the proprietary MEMS calorimetric mass flow sensor that is installed in the flow channel forming a plate that serves as an additional flow conditioner from the boundary layer configuration resulting in a laminar flow The mass flow measurement is established as the fluid carries heat away from the heater causing the redistribution of the temperature field Accurate flow speed is obtained by calibration with the standard fluid at the preset conditions HMFI1000 series User manual e Meter body Protection cover Left key Meter stand Flow channel connector Flow record key Function key Power key BITTER NE N2 Air Ar H2 He aa Mass flow DHOD D I Recorded sccm HMEIOOO series Specifications Mass Flow Rate Accuracy Response time Turn down ratio P
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