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Micro-Measurements
General Purpose Strain Gages

250RD

Description   Large three-element 45° rectangular rosette. Similar to the 250RA pattern except for resistance. See also 250UR pattern. EK-Series gages are supplied with duplex copper pads (DP) when optional feature W or SE is not specified.


See Catalog 500 for detailed pattern.


Dimensions (1) in    mm
Gage Length 0.250 ES    6.35 ES
Overall Length 0.550 CP    13.97 CP
Grid Width 0.125 ES    3.18 ES
Overall Width 0.847 CP    21.51 CP
Matrix Length 0.78    19.8
Matrix Width 0.93    23.6


Gage Designation (2)   Resistance (3)   Options
EA-XX-250RD-350  (4)     350 ±0.2% W , E , L , LE
EK-XX-250RD-10C     1000 ±0.2% W , SE
S2K-XX-250RD-10C     1000 ±0.4%
WA-XX-250RD-350     350 ±0.4% W *
WK-XX-250RD-10C     1000 ±0.4% W *
EP-08-250RD-350 (5)      350 ±0.2%
SA-XX-250RD-350     350 ±0.4%
SK-XX-250RD-10C     1000 ±0.4%


(1) ES = Each Section, CP = Complete Pattern.
(2) Insert desired STC number in space marked XX.
(3) In ohms. Tolerance is increased when Option W, E, SE, LE, or P is specified.
(4) Available with 30 and 50 STC as a High-STC Special Purpose Gage .
(5) Available also with 40 STC as a High-STC Special Purpose Gage .
* Options available but not normally recommended. See the discussion on Optional Features