diff --git a/script/optics/FrontEndBladeScanKei.py b/script/optics/FrontEndBladeScanKei.py
index 7051d8e2..698bc087 100644
--- a/script/optics/FrontEndBladeScanKei.py
+++ b/script/optics/FrontEndBladeScanKei.py
@@ -6,11 +6,11 @@ keithley 2: RMU
 
 import time
 
-SENSORS = (Keithley2)
+SENSORS = (RefCurrent)
 STARTPOS = (-1.5)
 ENDPOS = (+1.5)
 STEPS = 0.01
-LATENCY = 1.0
+LATENCY = 0.5
 DWELL = 0.1
 
 KEI_RMU = "X03DA-KEITHLEY-2:"
@@ -47,13 +47,13 @@ POSITIONERS = (FrontendBladeUp)
 FrontendBladeUp.write(STARTPOS)
 FrontendBladeDown.write(-2.0)
 time.sleep(5.0)
-lscan(POSITIONERS, SENSORS, STARTPOS, ENDPOS, STEPS, LATENCY, before_read=trig, after_read=after_readout)
+lscan(POSITIONERS, SENSORS, STARTPOS, ENDPOS, STEPS, LATENCY, before_read=before_readout, after_read=after_readout)
 
 POSITIONERS = (FrontendBladeDown)
 FrontendBladeDown.write(STARTPOS)
 FrontendBladeUp.write(+2.0)
 time.sleep(5.0)
-lscan(POSITIONERS, SENSORS, STARTPOS, ENDPOS, STEPS, LATENCY, before_read=trig, after_read=after_readout)
+lscan(POSITIONERS, SENSORS, STARTPOS, ENDPOS, STEPS, LATENCY, before_read=before_readout, after_read=after_readout)
 
 FrontendHSize.write(2.0)
 FrontendVSize.write(2.0)
@@ -67,13 +67,13 @@ POSITIONERS = (FrontendBladeRing)
 FrontendBladeRing.write(STARTPOS)
 FrontendBladeWall.write(-4.0)
 time.sleep(5.0)
-lscan(POSITIONERS, SENSORS, STARTPOS, ENDPOS, STEPS, LATENCY, before_read=trig, after_read=after_readout)
+lscan(POSITIONERS, SENSORS, STARTPOS, ENDPOS, STEPS, LATENCY, before_read=before_readout, after_read=after_readout)
 
 POSITIONERS = (FrontendBladeWall)
 FrontendBladeWall.write(STARTPOS)
 FrontendBladeRing.write(+4.0)
 time.sleep(5.0)
-lscan(POSITIONERS, SENSORS, STARTPOS, ENDPOS, STEPS, LATENCY, before_read=trig, after_read=after_readout)
+lscan(POSITIONERS, SENSORS, STARTPOS, ENDPOS, STEPS, LATENCY, before_read=before_readout, after_read=after_readout)
 
 FrontendHSize.write(0.0)
 FrontendVSize.write(0.0)