diff --git a/script/KeithleyVoltageScan.py b/script/KeithleyVoltageScan.py
index 87bceb04..324bd5a7 100644
--- a/script/KeithleyVoltageScan.py
+++ b/script/KeithleyVoltageScan.py
@@ -5,7 +5,7 @@ Keithley voltage scan
 
 POSITIONERS = (Keithley1Voltage)
 SENSORS = (Counts, SampleCurrent, RefCurrent, MachineCurrent, EnergyDistribution, AngleDistribution, Scienta.dataMatrix,ManipulatorTempA)
-POSITIONS = (100,-100)
+POSITIONS = (50,-50)
 
 #STEPS = 10.0
 STEPS = 1