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-rw-r--r--qolab/hardware/power_supply/keysight_e3612a.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/qolab/hardware/power_supply/keysight_e3612a.py b/qolab/hardware/power_supply/keysight_e3612a.py
index ecba1b3..ebccfe6 100644
--- a/qolab/hardware/power_supply/keysight_e3612a.py
+++ b/qolab/hardware/power_supply/keysight_e3612a.py
@@ -50,7 +50,7 @@ class KeysightE3612A(PowerSupplySCPI):
Queries power supply operation mode, returns OFF|PAR|SER|TRAC
OFF stands for independent channels
"""
- qstr = f"OUTP:PAIR?"
+ qstr = "OUTP:PAIR?"
rstr = self.query(qstr)
return rstr