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All Specifications are subject to change. All data is accurate to the best of our knowledge.

MicroE Systems is not responsible for errors.

MicroE Systems offers a wide array of chrome on glass scales for the highest accuracy and best thermal stability. Easy to install, standard

linear and rotary scales meet most application requirements. Customized linear, rotary, and rotary segment scales are available where need-

ed. All scales include an optical index. Mercury's glass scales save time by eliminating motion system calibrations or linearity corrections

required by other encoders, and provide better thermal stability than metal tape scales.

Options include:

•

Standard linear: 18mm - 2m

•

Standard rotary: 12mm - 107.95mm diameter, with or without hubs

•

Custom linear*: special lengths, widths, thickness, index mark locations and special low CTE materials

•

Custom rotary*: special ID's, OD's (up to 304.8mm), index mark outside the main track and special low CTE materials

•

Mounting of hubs for rotary scales: MicroE Systems can mount and align standard, custom, or customer-supplied hubs

•

Rotary segments*: any angle range; wide range of radius values

*Custom scales or rotary segments are available in OEM quantities. Contact your local MicroE Systems sales office.

Specifications

Accuracy

±5 µm <1m

±5 µm/m >1m

Material

Soda lime glass

Typical CTE

8ppm/°C

Index

Center or End

Specifications

Accuracy

±3µm standard

±1µm available

Material

Soda lime glass

Typical CTE

8ppm/°C

Index

Center or End

Standard Long Linear Scales

155mm and Longer

Key: inches[mm]

Standard Short Linear Scales

130mm and Shorter

Key: inches[mm]

Measured Length

is always 5 mm less

then total length

0.098 [2.5]

0.787 [20.00]

Center Index

End Index

Scale Length

Model

L18

L30

L55

L80

L105

L130

Scale Length

0.709 [18]

1.181 [30]

2.165 [55]

3.150 [80]

4.134 [105]

5.118 [130]

Measured Length

0.512 [13]

0.984 [25]

1.969 [50]

2.953 [75]

3.937 [100]

4.921 [125]

Measured Length

is always 5 mm less

then total length

Scale Length

Center Index

0.250 [6.35]

0.036 [0.9]

End Index

Model

L155

L225

L325

L425

L525

L1025

L2025

Scale length

6.102 [155]

8.858 [225]

12.795 [325]

16.732 [425]

20.669 [525]

40.354 [1025] 79.724 [2025]

Measured length

5.906 [150]

8.661 [220]

12.598 [320]

16.535 [420]

20.472 [520]

40.157 [1020] 79.528 [2020]

Scale Specifications

Standard and Customized Scales

Custom scales available

Custom scales available