FLT
®
Series FlexSwitch
TM
OPERATION
Fluid Components International LLC
27
Detecting Increasing Temperature (High Temperature Alarm)
1. Move the Mode switch to the CAL position.
2. Adjust the calibrate potentiometer (R24) until the voltmeter equals the desired temperature signal as indicated in Table 3-7.
For the appropriate alarm, determine whether the status LED is on or off (red for Alarm No. 1 or green for Alarm No. 2).
If the LED is off, turn the setpoint adjustment potentiometer (R26 for Alarm No. 1 or R25 for Alarm No. 2) slowly clockwise just until the
LED turns on.
OR
If the LED is on, turn the setpoint adjustment potentiometer (R26 for Alarm No. 1 or R25 for Alarm No. 2) counterclockwise until the LED
turns off and then slowly turn pot clockwise just until the LED turns on.
If this is the only temperature application alarm to be set up, then skip to the
Continue With The Temperature Applications Procedure
.
Detecting Decreasing Temperature (Low Temperature Alarm)
1. Move the Mode switch to the CAL position.
2. Adjust the calibration potentiometer (R24) until the voltmeter equals the normal temperature signal.
3. For the appropriate alarm, determine whether the status LED is on or off (red for Alarm No. 1 or green for Alarm No. 2).
If the LED is on, turn the setpoint adjustment potentiometer (R26 for Alarm No. 1 or R25 for Alarm No. 2) slowly counterclockwise just
until the LED turns off.
OR
If the LED is off, turn the setpoint adjustment potentiometer (R26 for Alarm No. 1 or R25 for Alarm No. 2) clockwise until the LED turns on
and then slowly turn pot counterclockwise just until the LED turns off.
Continue With The Temperature Applications Procedure
1. Move the Mode switch to the RUN position.
2. Establish the normal process temperature condition. For the high temperature alarm setups, observe that the status LED is off at normal
temperatures. For the low temperature alarm setups, observe that the status LED is on at normal temperatures.
3. Establish the process alarm condition and monitor the voltmeter display.
4. When the output signal passes through the setpoint value, observe that the status LED turns on for high temperature alarms or off for
low temperature alarms, and that the relay contacts change state.
5. Reestablish the normal process temperature condition. Observe that the LED and relay contacts reset.
6. Disconnect the voltmeter from P1.
7. Replace the enclosure cover.
Note:
The default relay logic configuration is for the relay coil to be de-energized when the temperature signal voltage is greater
than the setpoint value; i.e., in a normal process temperature condition the relay coil is energized. It is recommended to have
the relay coils energized when the process temperature is normal. This lets the relay go into a fail-safe alarm state in case of
a power failure.
Содержание FLT93B
Страница 10: ...GENERAL FLT Series FlexSwitchTM 4 Fluid Components International LLC INTENTIONALLY LEFT BLANK ...
Страница 20: ...INSTALLATION FLT Series FlexSwitchTM 14 Fluid Components International LLC Figure 2 7 Power Jumper Diagram ...
Страница 42: ...OPERATION FLT Series FlexSwitchTM 36 Fluid Components International LLC INTENTIONALLY LEFT BLANK ...
Страница 44: ...MAINTENANCE FLT Series FlexSwitchTM 38 Fluid Components International LLC INTENTIONALLY LEFT BLANK ...
Страница 50: ...TROUBLESHOOTING FLT Series FlexSwitchTM 44 Fluid Components International LLC INTENTIONALLY LEFT BLANK ...
Страница 80: ...APPENDIX A DRAWINGS FLT Series FlexSwitchTM 74 Fluid Components International LLC FLT93 PWB Module 5208 ...
Страница 82: ...APPENDIX B GLOSSARY FLT Series FlexSwitchTM 76 Fluid Components International LLC INTENTIONALLY LEFT BLANK ...
Страница 95: ...FLT Series FlexSwitchTM APPENDIX C APPROVAL INFORMATION Fluid Components International LLC 89 SIL Information ...
Страница 103: ...FLT Series FlexSwitchTM APPENDIX E CUSTOMER SERVICE Fluid Components International LLC 97 ...
Страница 104: ...APPENDIX E CUSTOMER SERVICE FLT Series FlexSwitchTM 98 Fluid Components International LLC ...