diff --git a/devices/img.properties b/devices/img.properties
index 85e28b8..897e8fa 100644
--- a/devices/img.properties
+++ b/devices/img.properties
@@ -1,8 +1,8 @@
-#Wed Sep 14 15:30:28 CEST 2016
+#Wed Sep 14 15:30:52 CEST 2016
 colormap=Temperature
 colormapAutomatic=false
-colormapMax=NaN
-colormapMin=NaN
+colormapMax=0.0
+colormapMin=0.0
 flipHorizontally=false
 flipVertically=false
 grayscale=false