User manual VAISALA PTB330

[. . . ] USER'S GUIDE Vaisala BAROCAP® Digital Barometer PTB330 M210855EN-C PUBLISHED BY Vaisala Oyj P. O. Box 26 FIN-00421 Helsinki Finland Phone (int. ): Fax: +358 9 8949 1 +358 9 8949 2227 Visit our Internet pages at http://www. vaisala. com/ © Vaisala 2008 No part of this manual may be reproduced in any form or by any means, electronic or mechanical (including photocopying), nor may its contents be communicated to a third party without prior written permission of the copyright holder. Please observe that this manual does not create any legally binding obligations for Vaisala towards the customer or end user. All legally binding commitments and agreements are included exclusively in the applicable supply contract or Conditions of Sale. ________________________________________________________________________________ Table of Contents CHAPTER 1 GENERAL INFORMATION . [. . . ] Select Diagnostics and press the right arrow button. 66 __________________________________________________________________ M210855EN-C Chapter 4 ________________________________________________________________ Operation 4. Select one of the testing options by pressing the 0%/50% or 100% button. Press the OK button to stop testing and go back to the the Analog output tests menu. Then press the EXIT button to return to the basic display. Analog Output Fault Indication The factory default state for the analog outputs during error condition is 0 V/ 0 mA. The user must not input an error value that will cause unexpected problems in process monitoring. Then press the EXIT button to return to the basic display. 9. VAISALA _______________________________________________________________________ 67 User's Guide ______________________________________________________________________ MI70 Link Interface Software for Data Handling Recorded data can be transferred to a PC by using MI70 Link Interface Software. You can examine the recorded data easily in Windows environment and transfer it further to a spreadsheet program (such as Microsoft Excel) or virtually to any Windows program in numeric or graphical format. the MI70 link program also allows you to monitor barometer readings directly with a PC (real-time window function). Connect the connection cable between the serial port of your PC and the Service Port of the barometer. Check that the barometer is powered up and start using the MI70 Link program. Use a MI70 Link version 1. 10, or a newer one, to be able to utilize all the functions of the barometer. Serial Line Communication Connect the serial interface by using either the user port or the service port. You can change the serial settings and operate in RUN, STOP and POLL modes. Service port is always available with fixed serial settings and it starts in the STOP mode after power-up always. 68 __________________________________________________________________ M210855EN-C Chapter 4 ________________________________________________________________ Operation 0703-007 Figure 36 Service Port Connector and User Port Terminal on Motherboard Numbers refer to Figure 36 on page 69: 1 2 = = Service port connector User port terminals User Port Connection Use suitable serial cable between the user port RxD, GND and TxD screw terminals and the PC serial port. Table 9 Parameter Bit rate Parity Data bits Stop bits Flow control Default Serial Communication Settings for the User Port Value 4800 Even 7 1 None VAISALA _______________________________________________________________________ 69 User's Guide ______________________________________________________________________ USER PORT POWER RS-232 10. . . 36 V= + ­ RxD GND TxD POWER CONTROL 12345 6789 IOIOI 0506-033 Figure 37 Connection Example Between PC Serial Port and User Port Connections to pins 4, 6, 7 and 8 on PC serial port are required only if you are using software requiring hardware handshaking. NOTE User port cannot be used when RS-485 module is connected. After power-up the barometer (in STOP mode) outputs the software version and the command prompt. In RUN mode a measurement output starts immediately after power-up. 70 __________________________________________________________________ M210855EN-C Chapter 4 ________________________________________________________________ Operation Service Port Connection Table 10 Parameter Bit rate Parity Data bits Stop bits Flow control Fixed Communication Settings for Service Port Value 19200 No 8 1 None 1. Connect the serial interface cable (optional accessory, order code: 19446ZZ) between the serial port of your PC and the service port connector on the motherboard. Open a terminal program and set the communication settings (see the following section for detailed instructions). 3. Terminal Program Settings The following instructions show a connection example with HyperTerminal program (included in the Microsoft Windows). To get help for starting HyperTerminal, click "Start", select "Help" to open Windows help, and search for "HyperTerminal". In the "New Connection"window of the HyperTerminal, define a name for the barometer serial connection, for example "PTB330". In "Connect using" box, select the PC communications port where the serial cable is connected. (If your computer has only one COM port, it is called "COM1"). Set the port settings in the "Properties" window to match the settings of your barometer user port/service port. [. . . ] 999. 999 Table 30 Unit hPa psi inHg torr bar mbar mmHg kPa Pa mmH2O inH2O Unit Conversion Table for Difference Pressure deltaP and Pressure Trend P3h Quantities Gain 1 0. 01450377 0. 02952999 0. 7500617 0. 001 1 0. 7500617 0. 1 100 10. 19716 0. 40147 Offset 0 0 0 0 0 0 0 0 0 0 0 Min. . . Max -9999. 99 . . . 9999. 99 Table 31 Unit Conversion Table for Settings Pressure Stability PSTAB and Maximum Pressure Difference deltaPMAX Gain 1 0. 01450377 0. 02952999 0. 7500617 Offset 0 0 0 0 Min. . . Max 0 . . . 99. 999 Unit hPa psi inHg torr 130 _________________________________________________________________ M210855EN-C Appendix B _____________________________________________________ Unit conversion tables Table 31 Unit Conversion Table for Settings Pressure Stability PSTAB and Maximum Pressure Difference deltaPMAX Gain 0. 001 1 0. 7500617 0. 1 100 10. 19716 0. 40147 Offset 0 0 0 0 0 0 0 Min. . . Max 0 . . . 99. 99 Unit bar mbar mmHg kPa Pa mmH2O inH2O Table 32 Unit m ft Unit Conversion Table for Settings HHCP and HQFE Gain 1 3. 28084 Offset 0 0 Min. . . Max -30 . . . [. . . ]