ERM 2203

    Specifications

    Scale drum

    TTR ERM 2203

    Grating period 200 µm

    Measuring standard

    Coefficient of expansion

    Steel drum

    αtherm 10 · 10–6 K–1

    Signal periods

    1200

    1440

    1800

    2048

    2400

    2800

    3392

    4096

    5200

    Drum inside diameter*

    40 mm

    55 mm

    70 mm

    80 mm

    105 mm

    130 mm

    160 mm

    180 mm

    260 mm

    Drum outside diameter*

    75.44 mm

    90.53 mm

    113.16 mm

    128.75 mm

    150.88 mm

    176.03 mm

    213.24 mm

    257.50 mm

    326.90 mm

    Accuracy of graduation

    ±6.5”

    ±5.5”

    ±4.5”

    ±4”

    ±3.5”

    ±3”

    ±2.5”

    ±2”

    ±1.5”

    Interpolation error
    per signal period

    ±4”

    ±3.5”

    ±3”

    ±2.5”

    ±2”

    ±2”

    ±1.5”

    ±1.5”

    ±1”

    Reference mark

    One or distance-coded

    Mech. permissible speed

    ≤ 19 000 rpm

    ≤ 18 500 rpm

    ≤ 14 500 rpm

    ≤ 13 000 rpm

    ≤ 10 500 rpm

    ≤ 9000 rpm

    ≤ 7000 rpm

    ≤ 6000 rpm

    ≤ 4500 rpm

    Max. angular acceleration

    27 000 rad/s2

    20 000 rad/s2

    9000 rad/s2

    6000 rad/s2

    4900 rad/s2

    3300 rad/s2

    1900 rad/s2

    820 rad/s2

    560 rad/s2

    Moment of inertia

    0.32 · 10–3 kgm2

    0.63 · 10–3 kgm2

    1.5 · 10–3 kgm2

    2.6 · 10–3 kgm2

    4.4 · 10–3 kgm2

    7.4 · 10–3 kgm2

    16 · 10–3 kgm2

    37 · 10–3 kgm2

    76 · 10–3 kgm2

    Mass

    0.35 kg

    0.44 kg

    0.69 kg

    0.89 kg

    1.0 kg

    1.2 kg

    1.8 kg

    3.0 kg

    3.5 kg

    Scanning head

    AK ERM 2283

    Interface

    1 VPP

    Cutoff frequency (–3dB)

    300 kHz

    Grating period

    200 µm

    Electrical connection

    Cable, 1 m, with or without 12-pin M23 coupling (male)

    Cable outlet

    Tangential, to the left or right

    Supply voltage

    DC 5 V ±0.5 V

    Current consumption (typical)

    35 mA (without load)

    Cable length1)

    150 m

    Vibration 55 Hz to 2000 Hz

    Shock 6 ms

    Shock 6 ms, with fault exclusion
    for the loosening of the mechanical connection

    400 m/s2 (EN 60068-2-6)

    1000 m/s2 (EN 60068-2-27)

    400 m/s2 (EN 60068-2-27)

    Operating temperature

    –10 °C to 60 °C

    Protection class EN 60529

    IP67

    Mass Scanning head

    Connecting cable

    Coupling (M23)

    30 g (without cable)

    37 g/m

    50 g

    1) With HEIDENHAIN cable