diff --git a/config/jcae.properties b/config/jcae.properties
index 15a71f2b..9725d88b 100644
--- a/config/jcae.properties
+++ b/config/jcae.properties
@@ -1,5 +1,5 @@
-#Wed Mar 28 17:52:39 CEST 2018
-ch.psi.jcae.ContextFactory.maxArrayBytes=30000000
+#Wed Mar 28 17:53:41 CEST 2018
+ch.psi.jcae.ContextFactory.maxArrayBytes=25000000
 ch.psi.jcae.ChannelFactory.timeout=500
 ch.psi.jcae.ChannelFactory.retries=1
 ch.psi.jcae.ChannelBeanFactory.timeout=10000
diff --git a/script/test/TestWaveform.py b/script/test/TestWaveform.py
index 63e97b7c..6497ab7f 100644
--- a/script/test/TestWaveform.py
+++ b/script/test/TestWaveform.py
@@ -1,6 +1,6 @@
 import ch.psi.pshell.epics.ChannelDoubleArray as ChannelDoubleArray
 
-c=ChannelDoubleArray("test", "X03DA-SCIENTA:image1:ArrayData", 3, 100, True)
+c=ChannelDoubleArray("test", "X03DA-SCIENTA:image1:ArrayData", 3, -1, True)
 c.monitored=True
 add_device(c, True)