1450 First Ave.
Page 9 of 12
Chippewa Falls, WI 54729
(800) 283-1141 or (715) 723-1141
Fax: (715) 723-7890
DTA4000 User Manual
Pacer Instruments, Inc
Rev 1.0
www.pacer-instruments.com
11-Aug-2007
Phone: 1-800-283-1141
APPENDIX B – RS-232C CABLE PINOUTS
APPENDIX C – MAX/MIN CALCULATIONS
A)
1
st
MAX reading; also first minimum reading, to be replaced at B.
B)
1
st
MIN at B is the lowest yet and will be registered as velocity increases.
C)
This 2
nd
, higher MAX at C will register as the velocity decreases, replacing 1
st
MAX.
D)
This 2
nd
MIN at D is higher than the MIN already registered and will be ignored.
E)
This 4
th
MIN at E is lower than the 1st MIN, registered at B, and will replace it.
F)
The zero crossing at F does not form a MIN and will be ignored. This protects against false MIN
readings when the probe is withdrawn from the air stream.
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