HD700 Datasheet, PDF (7/7 Pages) Extech Instruments Corporation. – Differential Pressure Manometer

Battery Replacement
When the low battery indicator BAT appears on the display or if the meter does not switch
on when the POWER button is pressed, it is necessary to replace the battery.
To replace the battery:
1. Open the battery compartment by sliding the meter’s rear panel in the direction of the
embossed arrow.
2. Replace the 9V alkaline battery
3. Replace the battery compartment cover.
Conversions
Useful conversion Factors
From
in of H₂O
in of H₂O
mm of Hg
To
in of Hg
cm of Hg
in of H₂O
Multiplier
0.07355
2.54
0.03937
Calibration and Repair Services
Extech offers repair and calibration services for the products we sell. Extech also
provides NIST certification for most products. Call the Customer Care Department for
information on calibration services available for this product. Extech recommends that
annual calibrations be performed to verify meter performance and accuracy.

Support line [phone]
Technical Support: Extension 200; E-mail: [e-mail]
Repair & Returns: Extension 210; E-mail: [e-mail]
Product specifications subject to change without notice
For the latest version of this User Guide, Software updates, and other
up-to-the-minute product information, visit our website: www.extech.com
Extech Instruments Corporation, 285 Bear Hill Road, Waltham, MA 02451
Copyright © 2007 Extech Instruments Corporation
All rights reserved including the right of reproduction in whole or in part in any form.
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HD700 V1.1 08/07