Instruction manual

SM425 INSTRUCTION MANUAL 8.0 DETAILED DATA SETTING
1. Contact-initiated measurement range switching is available for analog output1 only.
2. Either semi-automatic or automatic mode must be selected in the Calibration Setup display screen to
enable contact-initiated calibrations.
3. Either semi-automatic or automatic mode must be selected in the Blow Back Setup display screen to
enable contact-initiated blow backs.
4. When the unburned gas detection signal is sent to an input contact, the converter will cut the power to
the detector heater. As a result, the heater temperature decreases causing an Error 1 or Error 2
condition.
8.5.2 Configuration Procedure
The following example programs the “Input1” contact for semi-automatic calibration. In this case the
calibration is initiated with an open contact signal:
1. Press the Setup key in the Basic Panel display screen to display the Execution/Setup display
screen.
2. Select Setup in the Execution/Setup display screen to display the “Commissioning” (Setup)
display screen.
3. Select “Contact setup” in the “Commissioning” (Setup) display screen.
4. Select “Input contacts” in the Contact setup display screen. The Input contacts display screen
then appears, as shown in Figure 8-11.
5. Select Input1. The Input contacts display screen then appears, as shown in Figure 8-12.
6. Select Calibration start.
7. Select Input1 “closed.” An Open or Closed selection display screen then appears.
8. Choose Open.
Figure 8-11 Input Contacts Display
132 42500001 REV A