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RUSKA 2470
Users Manual
1-4
Temperature Range
Operating
18 ºC to 28 ºC
Storage
-40 ºC to 70 ºC when thermometer and low range piston & Cylinder are
stored separately from each other.
Humidity Range
Operating
20% to 75% noncondensing
Storage
0% to 90% noncondensing
Pressure Medium Clean dry gas, Nitrogen or equivalent, regulated to a pressure Compatible
with each particular Piston/cylinder assembly. Dew Point of less than or
equal to -60 ºF
Pressure
Maximum Working Pressure
2470 piston/Cylinder installed in 2470 Column adapter
With High Range Piston/Cylinder 3000 psig
2465 piston/Cylinder installed in 2465 Column adapter
With Mid Range Piston/Cylinder 100 psig (Do Not Exceed 6.31 Kg Mass Load)
With Low Range Piston/Cylinder 25 psig (Do Not Exceed 6.31 Kg Mass Load)
2468 piston/Cylinder installed in 2465 Column adapter
With Mid Range Piston/Cylinder 200 psig (Do Not Exceed 12.31 Kg Mass Load)
With Low Range Piston/Cylinder 50 psig (Do Not Exceed 12.31 Kg Mass Load)
Note
The pressurized housing with the 2470 adapter has been tested to 4000 psig.
The pressurized housing with the 2465 adapter has been tested to 1000 psig.
Accuracy
The gauge is capable of measuring pressures to the accuracy indicated below. See the
calibration report for the actual accuracy of this gauge. The claim for accuracy is valid
only when the gauge is operated according to the instructions provided with the
equipment. In addition, the claim is valid when the value of gravity acting upon the
weights is known to +/-0.001 cm sec
2
.
Accuracy is defined as the departure of the measured pressure from the true pressure.
The value is based on a simple error analysis of the calibration experiment and represents
the sum of the systematic errors and two standard deviations of the random variability of
the measurement process.
Gauge Pressure (0.0035% Class)
High Range Piston
(0.013 sq in area)
0.0035 percent of reading
or 0.002 psi, whichever is greater
Mid Range Piston
(0.13 sq in area)
0.0035 percent of reading
or 0.0002 psi, whichever is greater
Low Range Piston
(0.52 sq in area)
0.0035 percent of reading
or 0.00005 psi, whichever is greater