Accessory TMP-SET for controlling water temperature with REG and DAQ instruments LIST OF PARTS 1) Submersible Eheim pump 2) Soft PVC tubing, ID10mm, 5m 3) Stainless steel cooling coil SETUP Place the pump in a tank or pump sump and connect to the coil using the tubing. Then place the coil in a cooler/heater and use a second piece of tubing to return the water to the tank/sump. Finally, connect the pump to the proper instrument digital relay socket using an adapter cable or spare connector. Figure 1. Example of setup – when water in the tank is heated to above setpoint due to high room temperature, the instrument relay activates the pump to start pumping water through the heat-exchanging steel coil immersed in a refrigerated water bath. When the setpoint value plus the hysteresis value is reached, the relay will turn off the pump and keep water temperature stable in this way.
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