Magnetic sensor EHP2

Pole Pitch	2 mm
Resolution	20, 10, 5, 1 µm
Accuracy	up to ±5 µm
Measuring length	depending on magnetic tape
Interface	Digital A/B-Z Signals, RS422, Analog sin/cos, 1 Vpp

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Christian Willmann
c.willmann@willtec.de
+49 (0)7665 - 93465-17

Characteristics: small design: 12 x 13 x 35 mm stainless steel case... more

Product information "Magnetic sensor EHP2"

Characteristics:

small design: 12 x 13 x 35 mm
stainless steel case
resolution up to 0,5 μm; hysteresis ±1μm
pole pitch:2 mm
output signal: Digital (TTL-RS422) or analog (1 Vpp)
direct connection to control / display
issue of reference and index signals
easy installation in longitudinal or transverse position (through hole or thread M4)
Distance Sensor - Magnetic Scale < 0,8 mm
Movement Speed up to 20 m/s
IP-Rating: IP67

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Technical data "Magnetic sensor EHP2"

Mechanical Data

Dimension	12 x 13 x 35 mm
Material Housing Cable	Stainless Steel PUR
Weight Sensor	~14 g
System Accuracy	max. ±5 μm
Resolution (TTL-Variant)	20 µm / 10 µm / 5 µm / 2 µm / 1 µm on request
Interpolation Accuracy	typ. ± 3,5 μm < ± 4 μm
Fitting Tape	PM2
Wavelength	λ= 2 mm
Distance Sensor - Magnetic Scale without Cover Tape with Cover Tape	0,01 up to 1,2 mm max. 1,1 mm
Movement Speed digital analog	the max. Travel speed is related to the resolution and edge separation. (see table) max. 10 m/s
Operating Temperature	-20 °C up to +80 °C
Humidity	<90% not condensing
Cable	8-wire cable; twisted pair and shielded
Connector	open standard Sub-D; 9-polig optional M12; 8-polig optional further connectors on request
Shock rating EN60068-2-27	100 g/ 6 ms
Continuous shock EN 60068-2-29	100 g/ 2 ms
Vibration load EN 60068-2-6	12 g, 10 … 2.000 Hz
IP-Rating	IP67

* The subsequent electronics (control; display) has the edge distance of at least 120 ns (= 0,12μm) can safely

count on optimal performance. (Note counting frequency of the controller!)

Electrial Data

Power Supply	5V ±5%
Consumption (without circuitry of subsequent electronics)	typ. 35 mA max. 50 mA
Reference Signal	without fix / fix-periodically pole-periodically
Hysteresis	≤ 2 µm (distance-dependent)
Linearity Deviation by the Evaluation	≤ ±2 µm
External magnetic fields	< 30 mT to permanent damage to avoid <1 mT not to influence measurement
Analog (Sinus-Cousins signal)	Vpp
Signal Level (A; B;Z)	0,6 Vpp - 1,2 Vpp typ. 1,1 Vpp
Signal Ratio (A/B)	0,8 - 1,25
Phase Angle	90° ±0,1° el.
Signal Period (A; B)	2000 µm
Digital (Square Wave Signal)	TTL
Signal Level	RS422
Output	LineDriver
Square Wave Signal	DIN 66259
Phase Angle (A-B)	90°
Terminator	120 Ω
Edge Separation	the edge spacing is related to the resolution and the max. Traversing. (see table)

Drawing "Magnetic sensor EHP2"

EHP2_DE_TZ1