diff --git a/script/local.py b/script/local.py
index 35f9eedc..2c13097a 100644
--- a/script/local.py
+++ b/script/local.py
@@ -327,11 +327,14 @@ def after_scan():
     caput("X03DA-PC:AFTER-SCAN.PROC", 1)
     release_keithleys()
     
-def set_adc_averaging():
-    dwell = Scienta.getStepTime().read()
-    dwell = min(dwell, 20.0)
-    dwell = max(dwell, 0.1)
-    fixed = AcquisitionMode.read() == "Fixed"
+def set_adc_averaging(dwelltime=0.0):
+    if dwelltime == 0:
+        dwell = Scienta.getStepTime().read()
+        dwell = min(dwell, 20.0)
+        dwell = max(dwell, 0.1)
+        fixed = AcquisitionMode.read() == "Fixed"
+    else:
+        fixed = True
     prepare_keithleys(dwell, fixed)
     #value = Scienta.getStepTime().read() * 10.0 #averaging count in 100ms
     #SampleCurrentAveraging.write(value)
diff --git a/script/optics/ExitSlitYScan.py b/script/optics/ExitSlitYScan.py
index 97a3550b..c0aa2591 100644
--- a/script/optics/ExitSlitYScan.py
+++ b/script/optics/ExitSlitYScan.py
@@ -12,5 +12,6 @@ STEPS = 0.01
 LATENCY = 0.1
 DWELL = 1.0
 
+set_adc_averaging(dwelltime=DWELL)
 lscan(POSITIONERS, SENSORS, STARTPOS, ENDPOS, STEPS, LATENCY, before_read=before_readout, after_read=after_readout)
 
diff --git a/script/optics/FrontEndBladeScanKei.py b/script/optics/FrontEndBladeScanKei.py
index aec6331a..4af2aa64 100644
--- a/script/optics/FrontEndBladeScanKei.py
+++ b/script/optics/FrontEndBladeScanKei.py
@@ -2,6 +2,7 @@
 front end calibration scans
 
 keithley 2: RMU
+set keithley manually to "poll curr medi"
 """
 
 import time
@@ -43,7 +44,7 @@ caput("X03DA-PGM:rontheta.A", +87.0)
 #MonoBeta.waitValueInRange(-87.01, -86.99, 100000)
 #MonoTheta.waitValueInRange(+86.99, +87.01, 100000)
 
-POSITIONERS = (FrontendBladeUp,)
+POSITIONERS = (FrontendBladeUp)
 FrontendBladeUp.write(STARTPOS)
 FrontendBladeDown.write(-2.0)
 time.sleep(5.0)