Fluke 753 Fluke 750 Series User Manual - Page 70
Source Temperature with a Hart Scientific Drywell, When the drywell is connected - driver
![]() |
View all Fluke 753 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 70 highlights
753/754 Users Manual Source Temperature with a Hart Scientific Drywell The Product can source temperature using a Hart Scientific Drywell. Many models are supported. The drywell driver is able to talk to other drywells from Hart Scientific, provided that they respond to Hart Scientific's standard serial interface commands. Connect the Product to the drywell by plugging the drywell interface cable into the pressure module connector as shown in Figure 24. If the drywell has a DB9 connector, plug the drywell interface cable directly into the drywell using the DB9 Null Modem adapter. Drywells with the 3.5 mm jack connector need to use the serial cable supplied with the drywell in addition to the Product drywell interface cable. Join the DB9 connectors of the two cables, and connect the 3.5 mm jack to the drywell. Be sure the drywell is configured for serial communication at 2400, 4800, or 9600 bits per second. Other rates are not supported by the Product. To source a temperature with a drywell: 1. If necessary, push for SOURCE mode. 2. Push t to display the temperature mode menu. 3. Select Drywell from the list of options, and press . 4. The Product will begin to search for a drywell. If the Product shows Attempting connection for more than 10 seconds, double check your cable connections and drywell configuration. 58 5. If a dual well is recognized, a menu will pop up that allows you to select a "hot" or "cold" side of the dual well. Only one side of the drywell may be controlled at a time. Switching sides requires the drywell to be reconnected, by disconnecting the serial cable or by leaving drywell source mode and selecting it again. 6. When the drywell is connected, the primary display will show the actual temperature of the drywell, as measured by the drywell internally. The drywell model number will appear above the primary reading. The setpoint for the drywell is displayed in the secondary display, at the bottom of the screen. Initially, the setpoint will be set to the value already stored in the drywell. 7. Enter the temperature you wish to source and press . The settled indicator will be cleared when the actual temperature is within one degree of the setpoint, and the actual temperature is not changing quickly. Refer to the drywell documentation for that model's recommendations for stabilization time. The upper temperature limit is restricted by the "High Limit" setting stored in the drywell. If the Product will not set the drywell to temperatures within the drywell spec, refer to the drywell manual to check the "High Limit" setting.
![](/manual_guide/products/fluke-754-fluke-750-series-user-manual-f04d57d/70.png)