User manual VAISALA HMT310

[. . . ] USER'S GUIDE Vaisala HUMICAP® Humidity and Temperature Transmitter HMT310 M210619EN-C PUBLISHED BY Vaisala Oyj P. O. Box 26 FIN-00421 Helsinki Finland Phone (int. ): +358 9 8949 1 Fax: +358 9 8949 2227 Visit our Internet pages at http://www. vaisala. com/ © Vaisala 2007 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. The contents are subject to change without prior notice. 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The unit is calibrated at the factory and the device is ready for use. The transmitter is delivered with a detachable 5 m cable with eight wires for serial port, analog outputs and 24VDC power supply or with a screw terminal connector. See the wiring instructions in Figure 13 below and in Figure 14 on page 29. Cable Wiring 0507-044 Figure 13 8-Pole Connector 28 _______________________________________________________________ M210619EN-C Chapter 3 _______________________________________________________________ Installation The following numbers and codes refer to Figure 13: Color 1 White (WHT) 2 Brown (BRN) 3 Green (GRN) 4 Yellow (YEL) 5 Grey (GREY) 6 Pink (PINK) 7 Blue (BLU) 8 Red (RED) = = = = = = = = Function RS-232 TX RS-232 GND CH2+ CH1+ Supply-/CH1-/CH2 Supply+ RS-232 RX Not connected Screw Terminal Connector 0507-045 Figure 14 Screw Terminal Connector The following numbers refer to Figure 14 above: Color 1 White (WHT) 2 Brown (BRN) 3 Green (GRN) 4 Yellow (YEL) 5 Grey (GREY) 6 Pink (PINK) 7 Blue (BLU) 8 Red (RED) = = = = = = = = Function RS-232 TX RS-232 GND CH2+ CH1+ Supply-/CH1-/CH2 Supply+ RS-232 RX Not connected VAISALA____________________________________________________________________ 29 USER'S GUIDE____________________________________________________________________ This page intentionally left blank. 30 _______________________________________________________________ M210619EN-C Chapter 4 ________________________________________________________________ Operation CHAPTER 4 OPERATION This chapter contains information that is needed to operate Humidity Transmitter HMT310. Power ON/OFF Switch on the 24 VDC power supply and the transmitter wakes up. Entering Serial Communication Parameters The transmitter communicates via an RS-232 serial interface. The transmitter can be polled or set on RUN-mode with specific commands. The data format will be (factory settings): - 1 start bit - 7 data bits - 1 stop bit - Even parity - 4800 bits per second, programmable to 19200 - Full duplex - Serial asynchronous - Configured as Data Terminal Equipment (DTE) Enter the communication parameters when using this terminal session for the first time; save them for future use. See instructions in Table 4 on page 32. VAISALA____________________________________________________________________ 31 USER'S GUIDE____________________________________________________________________ Table 4 WINDOWS 2000 MENU WHAT TO DO Entering Serial Parameters in Windows® 2000 and Windows NT® WINDOWS NT MENU WHAT TO DO Start move the cursor to: Programs move the cursor to: Accessories move the cursor to: Communications move the cursor to: HyperTerminal Hypertrm click move the cursor to: double click type the name of the connection in the appropriate field and select an icon if available; click OK. move the cursor to the field CONNECT USING and select 'direct to COM x' (x = serial port available); click OK select parameters according to the following figure; click OK Start move the cursor to: Programs move the cursor to: Accessories move the cursor to: HyperTerminal move the cursor to: Hyperterminal click type the name of the connection in the appropriate field and select an icon if available; click OK. move the cursor to the field CONNECT USING and select 'COM x' (x = serial port available); click OK select parameters according to the following figure, click OK Connection Description Connection Description Phone Number Connect to COM x properties COM x properties 32 _______________________________________________________________ M210619EN-C Chapter 4 ________________________________________________________________ Operation 0507-046 Figure 15 HyperTerminal Settings in Windows 2000 Environment ® List of Commands The text in BOLD letters in the [brackets] indicates the default setting. This section presents the command list, the commands are described in detail later in this chapter. 99] CLOSE Start continuous outputting Stop continuous outputting Set continuous output interval for RUN-mode Output reading once Set serial interface mode Serial line settings (default: 4800 E 7 1) baud: 300. . . 19200 Set transmitter address for Use in POLL-mode Temporarily open transmitter from POLL-mode to receive commands Set transmitter in POLL-mode VAISALA____________________________________________________________________ 33 USER'S GUIDE____________________________________________________________________ Output formatting FORM TIME DATE FTIME [ON/OFF] FDATE [ON/OFF] UNIT FST [ON/OFF] Serial output format Set time Set date Add time to SEND and R outputs Add date to SEND and R outputs Select metric or nonmetric output units Output state of optional probe heating and chemical purge (with SEND and R commands) Check transmitter settings Check transmitter settings in POLL-mode Serial bus echo All devices in POLL-mode send their addresses List commands Set ambient pressure for calculations (non-volatile) Set ambient pressure for calculations Set result filtering Reset transmitter Display error messages Other commands ?ECHO [ON/OFF] FIND HELP PRES XPRES FILT RESET ERRS Setting, scaling and testing analog outputs AMODE Set analog outputs (0/4 . . . 20 mA) ASEL Select parameter for analog outputs ASCL Scale analog outputs ITEST Test analog outputs AQTEST Test analog outputs for desired readings AERR Set error outputs 34 _______________________________________________________________ M210619EN-C Chapter 4 ________________________________________________________________ Operation Calibration and adjustment (these are presented in Chapter 7, section Calibration and Adjustment Commands on page 64) CRH Relative humidity calibration CT Temperature calibration LI Revert factory calibration FCRH Relative humidity calibration after sensor change CTEXT Set calibration information text CDATE Set calibration date ACAL Analog output calibration Chemical purge PUR [ON/OFF] PURGE PURR [ON/OFF] Enable or disable automatic chemical purge Activate chemical purge Enable or disable automatic chemical purge in power up Enable or disable sensor heating Sensor heating XHEAT [ON/OFF] Measurement Output R Start Continuous Outputting Syntax: R<cr> Starts output of measurements to the peripheral devices (RUN-mode); the only command that can be used is S (stop). Example: >r<cr> RH= 28. 0 RH= 28. 0 RH= 28. 0 RH= 28. 0 RH= 28. 0 RH= 28. 0 %RH %RH %RH %RH %RH %RH T= T= T= T= T= T= 23. 3 23. 3 23. 3 23. 3 23. 3 23. 3 'C 'C 'C 'C 'C 'C VAISALA____________________________________________________________________ 35 USER'S GUIDE____________________________________________________________________ S Stop Continuous Outputting Syntax: S<cr> Stops the continuous output. Also the Esc key (on your computer keyboard) can be used to stop outputting. INTV Set Continuous Output Interval for RUN-Mode Syntax: INTV xxx yyy<cr> where xxx yyy Example: >intv 1<cr> Output interval: 1 S >intv 1 min<cr> Output interval: 1 MIN >intv 1 h<cr> Output interval: 1 H = = Output interval (0 . . . 255) Unit (s, min or h) SEND Output Reading Once Syntax in STOP-mode: SEND<cr> Syntax in POLL-mode: SEND aa<cr> where aa = Address of the transmitter when more than one transmitter is connected to a serial bus (0 . . . 99) 36 _______________________________________________________________ M210619EN-C Chapter 4 ________________________________________________________________ Operation SMODE Set Serial Interface Mode Syntax: SMODE x<cr> where x = STOP/RUN/POLL STOP-mode: Transmitter in standby for serial commands RUN-mode: Transmitter outputs data continuously POLL-mode: Transmitter only responds to addressed command Example: >smode run<cr> Output mode : RUN >smode stop<cr> Output mode : STOP SERI Serial Line Settings Syntax: SERI b p d s<cr> where b p d s = = = = bauds (300, 600, 1200, 2400, 4800, 9600, 19200) parity (n = none, e = even, o = odd) data bits (7 or 8) stop bits (1 or 2) The settings can be changed one parameter at a time or all parameters at once: Example: >seri o<cr> 4800 o 7 1 >seri 600 n 8 1<cr> 600 n 8 1 changing parity only changing all parameters VAISALA____________________________________________________________________ 37 USER'S GUIDE____________________________________________________________________ ADDR Set Transmitter Address for Use in POLL-Mode Syntax: ADDR aa<cr> where aa Example: >addr<cr> Address >addr 1<cr> Address :0 :1 = Address (0 . . . 99) OPEN Temporarily Open Transmitter from POLL-Mode to Receive Serial Commands Syntax: OPEN nn<cr> where nn = Address of the transmitter (0 . . . 99) The OPEN command sets the bus temporarily in STOP-mode so that the SMODE command can be issued. Example: >open 4<cr> Device: 4 line opened for operator commands > 38 _______________________________________________________________ M210619EN-C Chapter 4 ________________________________________________________________ Operation CLOSE Set Transmitter in POLLMode Syntax: CLOSE<cr> In STOP-mode: command OPEN has no effect, CLOSE sets the transmitter temporarily in POLL-mode. In POLL-mode: command OPEN sets the transmitter temporarily in STOP-mode, command CLOSE returns the instrument to POLLmode. Example: Relative humidity calibration is performed at transmitter 2, which is in POLL-mode. >open 2<cr> Opens the line to transmitter 2. >crh<cr> Calibration started. . . . >close<cr> Line closed. Output Formatting FORM Serial Output Format Syntax: FORM x<cr> where x = Formatter string Command format can be used to change the format of the output commands SEND and R. VAISALA____________________________________________________________________ 39 USER'S GUIDE____________________________________________________________________ Format string consists of quantities and modifiers: use the quantity abbreviations and modifiers presented in Table 5 below and in Table 6 below when selecting the output quantities. [. . . ] +180 °C Factory calibration uncertainty (+20 °C) for typical applications for typical applications for applications with chemical purge and/or warmed probe for applications with chemical purge and/or warmed probe ± 1 % RH (0 . . . 100 %RH) ± (1. 0 + 0. 008 × reading) %RH ± (1. 5 + 0. 015 × reading) %RH for applications with demanding chemical environment ± (1. 0 + 0. 01 × reading) %RH ± (1. 5 + 0. 02 × reading) %RH ±0. 6 % RH (0 . . . Small variations possible, see also calibration certificate. ) 8 s with grid filter 20 s with grid + steel netting filter 40 s with sintered filter Response time (90 %) for HUMICAP®180 and HUMICAP®180C at 20 °C in still air 72 _______________________________________________________________ M210619EN-C Chapter 8 ____________________________________________________________ Technical Data Response time (90 %) for HUMICAP®180R and HUMICAP®180RC at 20 °C in 0. 1 m/s air flow 17 s with grid filter 50 s with grid + steel netting filter 60 s with sintered filter Table 12 Temperature Specifications (+ Operating Pressure Ranges) Description / Value -40 . . . 40 bar) ±0. 2 °C See graph below Pt 100 RTD 1/3 Class B IEC 751 Property HMT311 HMT313 80 °C HMT313 120 °C HMT314 HMT315 (vapor tight) HMT317 (vapor tight) HMT318 Accuracy at +20 °C (+68 °F) Accuracy over temperature range Temperature sensor 0. 7 0. 6 °C 0. 5 0. 4 0. 3 0. 2 0. 1 0 -0. 1 -0. 2 -0. 3 -0. 4 -0. 5 -0. 6 -0. 7 -80 -60 -40 -20 0 20 40 60 80 100 120 140 160 180 0507-021 °C Figure 18 Accuracy over Temperature Range VAISALA____________________________________________________________________ 73 USER'S GUIDE____________________________________________________________________ Table 13 Electronics Specifications Description / Value 8-pole connector with 5 m cable Female 8-pin connector screw joint for cable diameter 4 . . . 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