Orbit® LTH - Specification

Performance Specification LTH laser

	LTHD/ 25/2/B	LTHD/ 50/10/B	LTHD/ 50/20/B	LTHD/ 120/20/B	LTHD/ 120/40/B	LTHD/ 200/100/B	LTHD/ 300/200/B
Range (mm)	2	10	20	20	40	100	200
Offset (mm) Note 1	25	50	50	120	120	200	300
Spot Size (Diameter µm)	30	36	36	100	100	100	130
Laser Angle (degrees)	45	30	30	20	20	12	8
Linearity (±% FSO) (Note 2)
Best (±% FSO)	0.01	0.02	0.025	0.025	0.03	0.03	0.03
Typical (±% FSO)	0.02	0.04	0.045	0.06	0.05	0.04	0.04
Best (+µm)	0.2	2	5	5	12	30	60
Typical (+µm)	0.4	4	9	12	20	40	80
Repeatability (μm) (Note 3)
Best	0.1	0.2	0.4	0.5	1.0	3.0	7.0
Typical	0.2	0.4	0.8	1.0	2.0	6.0	15.0
Resolution (μm)
(Note 4)	0.0076	0.0381	0.0763	0.0763	0.1526	0.3815	0.7629
(Note 5)	0.02	0.05	0.23	0.23	0.80	2.00	4.00
Laser
Modes (Note 7)	Diffuse or Specular			Diffuse only
Weight Head only (g)	203			460
Power mW / Class (IEC 60825)	<5 / 3R
Wavelength nm	670
Performance
Max Sampling Frequency (kHz)	40.00
Orbit® Data Rate (Readings/sec)	3906
Sampling Cycles	256/512 μS or 1/2/4/8/16/32/64 ms (Selectable)
Working Bandwidth Hz (Note 6)	1300, 650, 325, 163, 81, 40, 20, 10 , 5
Operating Temperature °C	0 to +40
Temperature Coefficient	±0.05% of FSO/°C
Humidity	10 to 95% non condensing
Emissions/Immunity	EN61000-6-3 / EN61000-6-2
Power Orbit® 3	5±0.25 VDC @ 0.09A and 24±2.5 VDC @ 0.06A typical
Power Orbit ACS	18-24 VDC @ 0.13A typical
Interfaces
Orbit® 3	Interfaces to the Orbit®3 network via the Orbit Support Pack for Windows (for Microsoft .Net Framework), USB, Ethernet and Serial Interface modules available
Orbit® ACS	Integral Screen and Keypad, MODBUS or Serial Interfaces

Note 1: Distance from the laser face to the middle point of the measuring range (mm)

Note 2: Measured on white photographic paper with the laser sample rate set to 4kHz and averaging 4 ms.

Note 3: Measured on white photographic paper with the laser sample rate set to 4 kHz and averaging 16 ms, the laser beam is
blocked between each measurement.

Note 4: Resolution 1 LSB of the Digital System

Note 5: Standard Deviation of 25 Measurements with the laser pointing at a fixed white photographic paper target with the laser
sample rate set to 4 kHz and averaging 16mS

Note 6: Real measurement bandwidth based on ability to reconstruct sine wave at filter frequency

Note 7: Specular Mode is recommended for high reflective (shiny) surfaces. ND filter required specify when ordering.