Bronkhorst IQ+FLOW (till 01-07-2013) User Manual

Instruction manual IQ+FLOW® series Digital Mass Flow / Pressure Controllers for gases Doc. no.: 9.17.045L Date: 07-01-2013

9.17.045 page 10 2.13 Product description The IQ+FLOW® series is one of the smallest mass flow sensors of its kind. Due to the use of micro system t

9.17.045 page 11 3. Basic operation 3.1 General An IQ+FLOW® instrument must be powered with +15…+24 Vdc according to the applicable hook-up diagra

9.17.045 page 12 3.3 Manual interface: micro-switch, LEDs and rotary switches In this section the manual instrument interfaces are described. In sec

9.17.045 page 13 3.3.2 LED functions The LEDs on top of the instrument can also be used for manual operation of some options. The green LED will in

9.17.045 page 14 3.4 Basic RS232 operation Digital operation adds a lot of extra features (compared to analog operation) to the instruments, such as

9.17.045 page 15 Software Examples of free Bronkhorst® DDE client applications: FlowDDE, FlowPlot and FlowView. Other software programs supporting DD

9.17.045 page 16 3.5 Basic RS485 operation This section is limited to the description of the interface between the IQ+FLOW® instrument with a master

9.17.045 page 17 Software When using a pc to communicate with IQ+FLOW® instruments only the FLOW-BUS protocol is supported by Bronkhorst software. Wh

9.17.045 page 18 3.6 Basic parameters and properties 3.6.1 Introduction Most instrument parameters can only be accessed with digital communication.

9.17.045 page 19 3.6.2 Basic measurement and control parameters The list below provides the most basic parameters for digital communication with the

9.17.045 page 2 Disclaimer Even though care has been taken in the preparation and publication of the contents of this manual, we do not assume leg

9.17.045 page 20 4. Advanced operation 4.1 Reading and changing instrument parameters 4.1.1 Special parameters ! All parameters described in thi

9.17.045 page 21 After power-up the control mode will be set to ‘Analog input’ or ‘BUS/RS232’, depending on the customer’s default setting for analo

9.17.045 page 22 4.1.4 Advanced measurement and control parameters Measured Value (Fmeasure) Type Access Range FlowDDE FLOW-BUS Modbus Float R -3.4E

9.17.045 page 23 Controller Speed (Kspeed) Type Access Range FlowDDE FlowBus Modbus Float RW  0…3.4E+38 254 114/30 0xF2F0…0xF2F1/62193…62194 This

9.17.045 page 24 Dynamic Display Factor Type Access Range FlowDDE FlowBus Modbus Float RW  0…1.0 56 117/1 0xF508…0xF509/62729…62730 This value sho

9.17.045 page 25 4.2 Special instrument features 4.2.1 Auto zeroing To start the auto zero-procedure by digital operation two parameters should be

9.17.045 page 26 4.2.3 Disabling micro switch (single-channel versions only) It is possible to disable the micro-switch on top of the instrument. Th

9.17.045 page 27 5. Troubleshooting and service 5.1 General For a correct analysis of the proper operation of a flow meter it is recommended to rem

9.17.045 page 28 5.4 Service For current information on Bronkhorst High-Tech B.V. and service addresses please visit our website:  http://www.bron

9.17.045 page 3 Warranty The products of Bronkhorst High-Tech B.V. are warranteed against defects in material and workmanship for a period of three

9.17.045 page 4 Table of Contents Disclaimer ...

9.17.045 page 5 1. Scope of this manual 1.1 Introduction This manual covers the IQ+FLOW® series mass flow/pressure meters/controllers for gases. E

9.17.045 page 6 2. Starting up 2.1 Check properties Before installing it is important to read the attached label and check: - Instrument type:

9.17.045 page 7 Compression type fittings For leak tight installation of compression type fittings make sure that the tube is inserted up to the sh

9.17.045 page 8 2.7 Analog / digital operation Analog operation (single channel versions only) For analog operation refer to the “Hook-up diagram

9.17.045 page 9 Warm-up time Let the IQ+FLOW® warm-up for at least 30 minutes for best accuracy. 2.10 Zeroing The zero point of each instrument