Macromatic TCF-E Series products monitor for over temperature and seal leakage
on submersible pumps using a float type leakage detector. These products come
with a switch to select either automatic reset or manual reset for an over temperature
condition.
The ange-enclosure is designed to be mounted on an inner door and used
with a back-mounted socket (included). Everything needed for setup, use and
troubleshooting is on the top of the unit: status LEDs, switch to choose Automatic or
Manual Reset mode for temperature, and a pushbutton for Manual Reset of an over
temperature condition. They are all visible so that the door need not be opened to see
the status of the over temperature or seal leakage condition.
Operation:
Two wires from the Over Temp/Seal Leakage relay are connected to a N.C. thermal
switch in the windings of the pump motor to monitor for overheating. A low-voltage
DC signal is applied to check the status of the thermal switch. Two additional wires
are connected to a N.C. float switch in the Leakage Sensor. A separate low-voltage
DC signal is applied to check the status of the Leakage Sensor. These products have
isolated output contact relays, one for over temperature and one for seal leakage.
With input voltage applied, normal temperature condition (thermal switch closed) and
no seal leakage (Leakage Sensor contact closed), both the over temperature relay
and the seal leakage relay are energized. The TEMP & SEAL LEDs are both Green,
indicating normal conditions and input voltage applied.
When the motor temperature rises and the N.C. thermal switch opens, the over
temperature relay is de-energized, opening a contact that had been closed and turning
off the pump contactor. The TEMP LED turns Red. If the over temperature condition is
cleared, the unit will reset based on the setting of the Over Temp switch. In the AUTO
mode, the unit will reset automatically. In the MANUAL mode, the Over Temp Reset
button must be pushed to clear the alarm and reset the relay.
If the seal starts to leak, contaminating uid enters the pump motor cavity. The contact
in the Leakage Sensor will open and the seal leakage relay is de-energized, reclosing
a contact that was opened and providing an alarm indication of a leaking seal. The
SEAL LED turns Red.
Features
- Monitors Submersible Pumps for Over Temperature & Seal Leakage
- Works with Pumps Using a Float Type Leakage Detector
- Auto & Manual Reset for Over Temperature
- Flange Enclosure for Door-Mounting
- Low-Profile Adjustment Switch & Reset Button
- Full Status Indication on Top of Unit for Easy Troubleshooting
- 11 Pin Back-Mounted Socket Provided with Relay
