H-25C Instruction Manual
Instruction 3015-0216
3
4. Measurement Operations .......................................................................................................33-42
4.1 Choosing a Location for the H-25C, and Getting Ready to Start Measurement ..............................................33
4.1.1 Choosing
a location ...............................................................................................................................33
4.1.2 Getting
ready
for measurement.............................................................................................................33-35
4.2 Measurement ....................................................................................................................................................36
4.2.1 Measurement modes.............................................................................................................................36
4.2.2 Searching for the location of a leak in B-type mode..............................................................................36
4.2.3 Searching for the location of a leak in A-type mode.............................................................................36-38
4.2.4 Leak Rate Measurement in B-type mode..............................................................................................39
4.2.5 Leak Rate Measurement in A-type mode..............................................................................................39
4.2.6 How to Check the Measured Value, and Possible Reasons for Abnormal Operation ..........................40-41
4.2.7 Turn the Power Switch OFF ..................................................................................................................41
4.3 R-12 Leak Detection .........................................................................................................................................42
4.3.1 Switch Setting ........................................................................................................................................42
4.3.2 Calibration Procedures ..........................................................................................................................42
5. Maintenance ............................................................................................................................43-48
5.1 Replacing the Probe Filter ................................................................................................................................43
5.2 Replacing the Activated Charcoal Filter............................................................................................................44-45
5.3 Refilling the Tank with Freon ............................................................................................................................46-47
5.4 Replacing the Sensor........................................................................................................................................47-48
5.5 Replacing the Disc Filter ...................................................................................................................................48
5.6 Replacing the Fuse ...........................................................................................................................................48
6. Troubleshooting......................................................................................................................49-52
6.1 Improper Use Leading to Hardware Failure......................................................................................................49
6.1.1 Never connect 240 V power when the supply voltage selector switch is set to a 100 V range ............49
6.1.2 Never allow liquid to be sucked in .........................................................................................................49
6.2 Possible Causes of Malfunctions, and What to do If They Occur.....................................................................50
6.2.1 Does
not
operate at all ..........................................................................................................................50
6.2.2 Does
not
detect leaks ............................................................................................................................50
6.2.3 Measured
value is too low .....................................................................................................................50-51
6.2.4 Measured
value is too high....................................................................................................................51
6.2.5 “AIR
FLOW” on steady ..........................................................................................................................51
6.2.6 Frequent
calibration requests ................................................................................................................51
6.2.7 Very
short sensor life.............................................................................................................................51
6.2.8 “CAL
FAIL” on steady ............................................................................................................................51-52
6.2.9 Liquid R134a in tank used up too quickly..............................................................................................52
6.2.10 Will not calibrate to proper value ...........................................................................................................52
[Reference] Facilities for ridding the Atmosphere of Unwanted Gases Where Leakage
Inspections Are Made..................................................................................................................53-54
Customer Maintenance Parts List ..............................................................................................55-56
Sales / Service Centers ...............................................................................................................57
Notice:
Product improvements and enhancements are continuous; therefore the specifications and information contained in this document may change without
notice. Bacharach, Inc. shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing,
performance, or use of this material. No part of this document may be photocopied, reproduced, or translated to another language without the prior
written consent of Bacharach, Inc.
Copyright © 2000–2002, Bacharach, Inc., all rights reserved. Revision Date 04/04/2003.
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®
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