SAR40 Azimuth Positioners and Polarization Positioners

Product catalog summary

Overview: The SAR40 Series Single Axis Positioners are designed for high positioning accuracy, smooth operation, and reliability. They are lightweight yet deliver high torque, making them ideal for positioning antennas and electro-optical sensors. The series is ruggedized for outdoor use.

Applications: These positioners are suitable for antenna/electro-optical sensor positioning, anechoic chamber applications, far-field & near-field antenna measurements, and general-purpose angular positioning.

Key Features: The positioners are powered by step motors, offer high angular positioning accuracy, comply with MIL-STD-810F requirements, and feature a lightweight, rugged design with a durable marine-grade finish. They operate over a wide temperature range and include positional control software with RS485 communication and closed-loop control.

Technical Specifications: The SAR40 series includes models such as SAR40A-N200, SAR40P-N200, and others, with delivered torque ranging from 207 Nm to 828 Nm and maximum speeds from 2.5°/sec to 27°/sec. They offer accuracy and repeatability of less than ±0.02° and a resolution of 0.005°. The positioners are made from machined aluminum with stainless steel fasteners and a chromate coating finish.

Electrical and Environmental Specifications: Operating voltage options are 24 VDC and 48 VDC, with motor power consumption varying by state. The positioners include standard incremental and absolute encoders, with optional slip rings. They are designed to withstand various environmental conditions, including temperature extremes, humidity, vibration, shock, rain, and icing, as per MIL-STD-810F standards.

Control and Miscellaneous: The positioners come with standard software compatible with MS Windows, microstepping motor drive, adjustable azimuth and polarization limits, and recordable preset positions. The control box is a 19” 1.5U rack mount chassis for indoor use, with RS485 and USB communication options. Optional modifications and accessories are available.

Dimensions: Detailed dimensions are provided for both azimuth and polarization positioners, with variations in height, turntable diameter, base flange diameter, and body width across different models.

Catalog excerpts

SAR40 Azimuth Positioners and Polarization Positioners-1

Rotary Positioners SAR40 Series (Single Axis) Our SAR40 Series Single Axis Positioners are designed and manufactured as providing high positioning accuracy, smooth operation, longevity and reliability. In addition, they manage to deliver high torque characteristics with low weight. SAR40 series have been developed especially for accurate positioning of antennas and electro-optical sensors. All SAR40 Series Positioners are equipped with stepper motors, precision gearboxes and bearings, high resolution encoders with positional feedback. They are also configurable with selectable options. Complete series of the units are ruggedized and suitable for outdoor applications, ensuring troublefree operation. AZIMUTH POSITIONER APPLICATIONS Antenna / Electro-Optical Sensor Positioning Anechoic Chamber Applications Far-Field & Near-Field Antenna Measurements General Purpose Angular Positioning KEY FEATURES Step Motor Powered High Angular Positioning Accuracy Complies MIL-STD-810F Requirements Lightweight, Rugged Design Durable Marine-Grade Finish Wide Operating Temperature Range Positional Control Software RS485 Communication, Closed Loop Control POLARIZATION POSITIONER www.letra.com.tr ©2022 Letra Co, Ltd. All rights reserved.

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SAR40 Azimuth Positioners and Polarization Positioners-2

Rotary Positioners SAR40 Series (Single Axis) TECHNICAL SPECIFICATIONS Model Designation Azimuth / Polarization Delivered Torque Max. Speed Accuracy Repeatability Resolution Distance Between Hard Limits General Major Dimensions Turn Table Dimensions Weight Operating Temperature Body Fasteners Exterior Finish Electrical Operating Voltage Motor Power Consumption ( Moving) Motor Power Consumption (Holding State) Heater Power Consumption Incremental Encoder Absolute Encoder Slip Ring Power off Brake Environmental Operating Temperature Storage Temperature Humidity Vibration Shock Rain Icing & Freezing...

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SAR40 Azimuth Positioners and Polarization Positioners-3

Rotary Positioners SAR40 Series (Single Axis) SYSTEM SCHEMATIC DIAGRAM Data & Power 110-220 VAC MS Windows Based Software Positioner USB Data Input Methods i. Manual ii. MODBUS/SOCKET API from Local Host or Remote PC Control Box (Indoor) Main PC Unit (Indoor) AZIMUTH POSITIONERS Turntable Diameter Base Flange Diameter Body Width www.letra.com.tr ©2022 Letra Co, Ltd. All rights reserved.

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SAR40 Azimuth Positioners and Polarization Positioners-4

Rotary Positioners SAR40 Series (Single Axis) POLARIZATION POSITIONERS Height (Stationary Body) Turntable Diameter Body Width Base Flange Diameter Rot. Axis Dist. from Mounting Surface www.letra.com.tr ©2022 Letra Co, Ltd. All rights reserved. Updated Jul. 24, 2022 Specifications are subject to change without notice

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SAR40 Azimuth Positioners and Polarization Positioners

SAR40 Azimuth Positioners and Polarization Positioners

Catalog excerpts

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