Fluke RUSKA 2470 User Manual

 

4-1 

The gauge should be installed in a room where the temperature is maintained between 

18 ºC to 28 ºC. The actual temperature is not as important as the stability in temperature. 

There should not be excessive personnel traffic and air drafts. Airborne dust is 

undesirable, but clean-room standards are not required. 
1.  Remove the gauge from its shipping box and locate it on a clean, level, sturdy work 

surface. The surface should be able to support fifty pounds of weight without 

deflecting and be secure enough to be free from vibration.  

2.  Level the base by turning the three leveling screws until the bubble in the level vial is 

centered.   

3.  Connect the pressure housing fitting to the pressurizing source and to the test 

instrument with 1/4" O.D. stainless steel tubing which has a working pressure rating 

of 3,000 psi or more. The tube requires a 37 degree flare for AN4 tube nut. Final 

tightening of the tube nuts should be delayed until after the base has been leveled. 

The pressure housing may be reoriented on the base if it is desired, but when the 

thermometer is on the left side, the numerals are inverted.  

4.  The pressurizing source should appropriate regulator, valves, and system volume 

adjuster to control the supply gas pressure from 0 to 3000 psi. Refer to Figure 4-2 for 

the recommended plumbing schematic. The RUSKA Series 3990 Manual Pressure 

Control Packs is recommended for this application. 

5.  Loosen the tube nut to the pressure housing fitting and level the instrument base.  
6.  Lock the level screws with the nuts located beneath the base plate. A 7/16" open-end 

wrench is required.  

7.  Tighten the pressure fitting nut being careful that the residual stress in the connecting 

tube is small and that the instrument base is not forced out of level. 

If the RUSKA 2456 Piston Gauge Monitor is being used with the instrument. Attach the 

RUSKA 2456 to the instrument base as follows:  
1.  Install the PRT holder fitting in the thermowell on the base.  
2.  Install the PRT (Platinum Resistance Thermometer) in the fitting using a dab of Heat 

sink compound on the tip of the PRT. (Heat sink compound is provided with the kit 

which adapts the RUSKA 2470 base to the RUSKA 2456). The heat sink compound 

will reduce the response time of the PRT.  

3.  Mount the (2) FPI spacer blocks (P/N 2455-2470-001) to the top of the base plate as 

shown in Figure 4-1 using the screw provided.