diff --git a/config/machine_settings/st-ten-4.ini b/config/machine_settings/st-ten-4.ini
index d160806..b92fc86 100644
--- a/config/machine_settings/st-ten-4.ini
+++ b/config/machine_settings/st-ten-4.ini
@@ -70,10 +70,10 @@ settling_pressure_min_percent: 5
 settling_pressure_max_percent: 5
 test_pressure: 2000
 test_time: 10
-test_pressure_qpos: 10 #Q+ Upper test leak limit
-test_pressure_qneg: 20 #Q- Lower test leak limit
-test_pressure_tt_qpos: 1 # Q+ Upper test leak limit (tube-tube)
-test_pressure_tt_qneg: 5 # Q- Lower test leak limit (tube-tube)
+test_pressure_qpos: 10 #Q+ Upper test leak limit (negative mbar)
+test_pressure_qneg: 20 #Q- Lower test leak limit (negative mbar)
+test_pressure_tt_qpos: 1 # Q+ Upper test leak limit (tube-tube) (positive mbar)
+test_pressure_tt_qneg: 5 # Q- Lower test leak limit (tube-tube) (negative mbar)
 flush_time: 1
 flush_pressure: 100
 relay_config: 1
\ No newline at end of file
diff --git a/src/components/tecna_marposs_provaset_t3.py b/src/components/tecna_marposs_provaset_t3.py
index 95eff99..dc4902a 100644
--- a/src/components/tecna_marposs_provaset_t3.py
+++ b/src/components/tecna_marposs_provaset_t3.py
@@ -281,7 +281,7 @@ class TecnaMarpossProvasetT3(ModbusComponent):
             "Print options": 0b0000000000000000 | self.saver_label_count << 12 | self.saver_print_on_fail << 8 | self.saver_label_template,
             "Test type": "Leak Test",
             # "Test flags": 0b0110000001011100 if step.spec.get("autotest", False) is not True else 0b0110000001010100,
-            "Test flags": 0b0110100001010100 if step.spec.get("autotest", False) in ("ok_check","ko_check") else 0b0110000001010100,
+            "Test flags": 0b0110100001010100 if step.spec.get("autotest", False) in ("ko_check") else 0b0110000001010100,
             "T0 - Pre-filling time": step.spec["pre_filling_time"],
             "P0 - Pre-filling pressure": step.spec["pre_filling_pressure"],
             "T1 - Filling time": step.spec["filling_time"],