diff --git a/script/optics/PhotonFluxSpectrum.py b/script/optics/PhotonFluxSpectrum.py
index a73ca6c0..8cd9dd5c 100644
--- a/script/optics/PhotonFluxSpectrum.py
+++ b/script/optics/PhotonFluxSpectrum.py
@@ -8,8 +8,10 @@ AuxCurrent: not connected
 
 import time
 
-RANGE = "C K-edge"
-BEAM = "G600 1x1"
+RANGE = "G1200 full"
+#RANGE = "G600 full"
+#RANGE = "C K-edge"
+BEAM = "G1200 1x1"
 
 if RANGE == "G600 full":
     # G600 full spectrum
@@ -103,7 +105,7 @@ def trig():
 #RefCurrentAveraging.write(value)
 
 POSITIONERS = (Eph)
-SENSORS = (Keithley1, Keithley2, SampleCurrent, RefCurrent, MachineCurrent)
+SENSORS = (SampleCurrent, RefCurrent, MachineCurrent)
 time.sleep(5.)
 
 lscan(POSITIONERS, SENSORS, STARTPOS, ENDPOS, STEPS, LATENCY, before_read=before_readout, after_read=after_readout)