11-19
11
CSLD Troubleshooting
Actual CSLD Test Problems Analyzed
9608180357
0 -0.853
72.1
74.6
76.9
-0.05
486
6329
46.5
50.3
555
0.000
9608180523
0 -1.071
72.0
74.6
76.9
-0.05
452
6316
72.0
51.7
556
0.000
9608190359
2 -1.182
72.0
74.1
76.8
0.00
358
9680
62.0
1.7
414
0.000
9608200135
1 -0.385
72.2
74.6
76.8
-0.05
618
7471
22.5
23.3
508
0.000
9608220158
0 -1.139
71.6
74.5
76.7
-0.09
564
3210
41.5
71.6
694
0.000
9608220320
0 -1.284
71.5
74.5
76.7
-0.08
520
3194
40.0
73.0
695
0.000
CSLD DIAGNOSTICS: RATE TABLE
T2: REGULAR SLAVE
TIME
ST
LRT
AVTMP
TPTMP
BDTMP
TMRT
DISPNS
VOL
INTVL
DEL
ULLG
EVAP
RATE TABLE EMPTY
The slave tank in manifolded sets will have empty rate tables!
Analysis of Rate Table (IA51)
Rate table shows large negative rates and the rates are inconsistent. This is an indication that CSLD is not
detecting dispensing soon enough. If the leak test had stopped after dispensing began, the result would have
been a negative rate.
The solution for this type of problem is pump sensing. BUT this site has pump sensing with line leak devices. The
problem in this example was that the pump wiring to the line leak devices was correct, but the line leak tank
assignments were incorrect.
Solution
Reassign Tanks 4 and 1 to their installed line leak devices (in this example, Line 1 [Reg] to Tank 1, Line 2 is
correctly assigned to Tank 3, but Line 3 [Premium] should be assigned to Tank 4).
CSLD PROBLEM 3 - INCREASE RATE WARNING FOR MANIFOLDED TANKS 2 AND 3
Reports IA52 and IA53 were collected for analysis.
Diagnostics
IA5200
MAR 12, 1996 1:54 PM
CSLD DIAGNOSTICS: RATE TEST
TK DATE LRATE INTVL ST AVLRTE VOL C1 C3 FDBK ACPT THPUT DFMUL RJT
1 9603121226 -0.033 28.6 1 -0.009 3877 80 20 45.0 44.8 1.42 -0.08 0
2 9603120523 0.138 36.8 1 0.165 8647 53 31 14.6 15.0 3.26 0.16 5
3 9603120523 0.138 36.8 1 0.165 8647 53 31 14.6 15.0 3.26 0.16 5
CSLD DIAGNOSTICS: RATE TABLE
T 2:REGULAR
TIME ST LRT AVTMP TPTMP BDTMP TMRT DSPNS VOL INTVL DEL ULLG EVAP
9602130541 1 0.181 42.2 41.7 40.1 -0.01 265 10628 20.5 23.9 304 0.000
9602140033 3 0.320 42.1 41.6 40.3 -0.00 457 9331 59.5 42.7 366 0.000
9602140318 1 0.285 42.1 41.6 40.4 -0.00 420 9304 21.5 45.5 366 0.000
9602140406 0 0.178 42.1 41.6 40.4 -0.00 386 9292 100.0 46.3 366 0.000
Indicates number of tests rejected
because leak rates > +0.4 gph.
Large positive rates.
