FLUKE 7109A-P-156 User Manual for the Fluke 7109A-P-156 Portable Calibration Bath with Process Electronics, -25°C to 140°C

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6109A/7109A

Operators Manual

Other bath fluids can be used, but the temperature range may be more limited.

Temperature stability and uniformity also varies when other fluids are used. As a

rule, bath fluid viscosity should be no greater than 50 centistokes at any

operating temperature. See Fluid Selection for more information.

Silicone fluid expands as it is heated. This can cause the bath fluid to spill out of

the tank. Use the optional overflow kit or fill the tank to a lower level. The stir

guard has marks MAX and MIN to show the proper fill levels. Fill the tank to the

MIN level if the plug is left in the overflow tube. Fill to the MAX level if the

overflow kit is used. Table 3 gives the recommended fill levels as measured from

the bottom of the tank.

Table 3. Fluid Fill Levels

Overflow Kit Installed Overflow Tube Plugged

MAX level, 154 mm MIN level, 128 mm

Note

Remove the plug from the overflow tube if the tank is filled to

maximum depth.

To add bath fluid:

1. Remove the tank cover.

2. Pour the bath fluid in through the tank opening.

3. Replace the cover and tighten its thumb screws.

4. Clean up any drips or spills. Do not get fluid on the control panel.

Attach the Probe Access Cover

Keep the tank covered when you operate the Product to ensure temperature

stability, uniformity, and accuracy. Use the provided probe access cover. The

cover holes fit many types of temperature sensors. Use the thumb screws to

fasten the cover to the top panel. Make sure the rubber gasket is properly

seated.

Connect to Mains Power

Warning

To prevent possible electrical shock, fire, or personal injury,

connect the factory-supplied three-conductor mains power cord

to a properly-grounded power outlet. Do not use a two-

conductor adapter or extension cord, as it will break the

protective ground connection.

Use the provided mains power cord to connect the Product to a 150 V ac or

230 V ac outlet (this depends on the model). The circuit, outlet, and mains power

cord must all be rated at 115 V ac, 10 A at 230 V ac.

1.888.610.7664 sales@GlobalTestSupply.com

Fluke-Direct.com

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FLUKE 7109A-P-156 Portable Calibration Bath with Process Electronics, -25°C to 140°C