The WMK-115x/11x miniature scanning heads with remotely located signal conditioning electronics are best suited for limited space applications. The signal conditioning electronics are located within an oversized connector that can also be IP-67 rated. They deliver either RS422 TTL square waves (to 0.125um arc length resolution) or industry standard 1VPP sine/cosine (20um arc length period). These read heads are IP-67 rated and are insensitive to environmental pollution like grease, oil, coolant, dust and dirt.

WMK-115x WMK-11x
Grating pitch: 500 µm 1000 µm
Operating temperature: -10°C … 100°C
Storage temperature: -20°C … 100°C
Protection Class: Scanning Head: IP67
Connector electronics with Connei connector: IP67
Connector electronics with Sub-D connector: IP54
Vibration: < 400 m/s² for 55 – 2000 Hz
Shock: < 2000 m/s² for 6 ms
Power supply: 5V ± 5%
Cable: Cable specification see page 72
Output signals: Sine 1Vpp or TTL (RS422); see diagram on page 71

System resolutions:

Arc Length:

Signal Period 1Vpp:

Resolution TTL:

500µm … ~15µm

125µm … 0,125µm (1)

1000µm … 31,25µm

250µm … 0,25µm (1)

Max Speed

See table on page 68

Suitable measuring scale:


See page 39


See page 39