User manual VAISALA HM70

[. . . ] USER'S GUIDE Vaisala HUMICAP® Hand-Held Humidity and Temperature Meter HM70 M210297EN-E 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Turn on both devices (or just the HM70 if HMT100 is on continuously). The reading of the transmitter is shown on the top or middle row of the indicator display, depending on which connector port the connection cable is connected to. Press the ADJ button on the HMT100 motherboard to open the adjustment mode. The indicator led on the HMT100 motherboard starts flashing. From now on the adjustment is carried out using the MI70 indicator. Check the environment settings if needed. Continue according to the directions of the desired adjustment method. 5. 6. 7. Field Checking and Adjustment Using a Calibrated Reference Probe Follow steps 1 to 7 above and continue as follows: 8. Check that the probes are located in equal conditions and wait until the readings have stabilized (may take 30 minutes or 42 __________________________________________________________________ M210297EN-E Chapter 9 ______________________________________ Calibration and Adjustment of Transmitters more). If you are near the probes, do not breath in their direction. Choose To same as RHI/II from the MI70 adjustment menu, press SELECT (MI70 automatically recognizes which port the HMP70series probe is connected to). Press BACK and EXIT to return to the basic display. Turn off the MI70 and detach the connection cable. 11. 13. One-Point Adjustment Using a Calibrator When adjusting the transmitter in only one reference condition, please take care that the reference condition represents the measuring environment. MI70 indicator is used now only as a terminal for visualizing and setting the transmitter's RH reading. Follow steps 1 to 7 on page 42 and continue as follows: 8. Remove the filter from the transmitter's probe and insert the probe into the reference condition. Choose 1-point adjustment from the MI70 adjustment menu, press SELECT. Press READY when the reading has stabilized in the reference condition (may take 30 minutes or more). You can follow the stabilization from the GRAPH display. Enter the correct reference value with the arrow buttons. 15. Confirm the adjustment by pressing YES. Press BACK and EXIT to return to the basic display. [. . . ] Include the information specified in step 2 in the box with the faulty product. Ship the box to the address specified by your Vaisala contact. VAISALA _______________________________________________________________________ 69 User's Guide ______________________________________________________________________ Vaisala Service Centers Vaisala Service Centers perform calibrations and adjustments as well as repair and spare part services. Vaisala Service Centers also offer accredited calibrations, maintenance contracts, and a calibration reminder program. Do not hesitate to contact them to get further information. 70 __________________________________________________________________ M210297EN-E Chapter 14 ____________________________________________________ Technical Specifications CHAPTER 14 TECHNICAL SPECIFICATIONS Probes HMP75, HMP76 and HMP77 Measured Variables Relative Humidity Measurement range 0 . . . [. . . ]