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Micro-Measurements
General Purpose Strain Gages

250BF

Description General-purpose gage with high resistance grid. Compact geometry. Similar to 250BG pattern except for resistance. See also 250BM and 250UW patterns. 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 in    mm
Gage Length 0.250    6.35
Overall Length 0.375    9.53
Grid Width 0.125    3.18
Overall Width 0.125    3.18
Matrix Length 0.52    13.2
Matrix Width 0.22    5.6


Gage Designation (1)   Resistance (2) Options
EA-XX-250BF-350 (3)       350 ±0.15% W , E , L , LE , P
ED-DY-250BF-10C       1000 ±0.3% E , L *, LE *
EK-XX-250BF-10C     1000 ±0.15% W , SE
S2K-XX-250BF-10C     1000 ±0.3%
WA-XX-250BF-350     350 ±0.3% W *
WK-XX-250BF-10C   1000 ±0.3% W *
EP-08-250BF-350 (4)       350 ±0.15%
SA-XX-250BF-350       350 ±0.3%
SK-XX-250BF-10C     1000 ±0.3%
SD-DY-250BF-10C     1000 ±0.6%
WD-DY-250BF-10C     1000 ±0.6%


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