diff --git a/script/optics/ExitSlitYScanKei.py b/script/optics/ExitSlitYScanKei.py
index 359b025c..ea8d3614 100644
--- a/script/optics/ExitSlitYScanKei.py
+++ b/script/optics/ExitSlitYScanKei.py
@@ -26,7 +26,7 @@ time.sleep(1.0)
 caput(KEI_DIODE + "DATAFORMAT", 1)
 #caput(KEI_DIODE + "READSCAN.SCAN", 0)
 #caput(KEI_DIODE + "NPLC", 1)
-caput(KEI_DIODE + "NAVG", DWELL / 0.02)
+#caput(KEI_DIODE + "NAVG", DWELL / 0.02)
 #caput(KEI_DIODE + "TCOUNT", 1)
 caput(KEI_DIODE + "RANGE", 6) # 200 nA
 time.sleep(1.0)