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NorthStar™ Brand SLIM Tach™ NexGen ST1250 Bearingless Magnetic Encoder

12.5" C-Face bearingless magnetic encoder upgraded with the latest sensor, wider air gap and on-board diagnostics

Next Generation of the Heavy Duty NorthStar SL1250 upgraded with the latest features.
Redesigned Using Our Revolutionary Sensor Technology to Provide a Large Air Gap of 0.060”
Redesigned Circuitry for On-Board Diagnostics with LED and Alarm Output
Bearingless Design Mounts to 250-C Face Motors and Requires only 1.1” of Motor Shaft
Anodized Aluminum Housing with Field-Serviceable Connector
Single or Dual Isolated Outputs Available

Technical Data
Accessories

Description

The Northstar™ brand SLIM Tach™ ST1250 digital tachometer is designed to combine our proven rugged construction with upgraded advanced magnetic technology to provide our customers with reliable mill duty feedback while eliminating encoder related downtime. The NorthStar ST1250 is designed to mount 12.5 inch C-Face motors and is available in resolutions up to 2048 PPR.

General

Feedback Type

Incremental

Technology

Magnetic

Mounting Configuration

Bearingless 12.5" C-Face mount

Mechanical

Encoder Size (Flange)

12.5" C-Face

Hollow Bore Size

5/8"-2 7/8"

Housing Material

Aluminum

Max. Operating Speed

7,000 RPM

Electrical

Resolution

60-2048 PPR

Supply Voltage

5-26VDC

Interfaces

IC-WE

Environmental

Approvals / Certifications

CE, ROHS

Operating Temperature Range

-40ºC to +120ºC

Storage Temperature

-40ºC to +120ºC

Environment

Non-Hazardous

Technical Information

ST1250 Encoder Data Sheet

ST1250 Encoder Installation Manual

Drawings

Series ST1250 3D Drawing (STP)

Industries

Pulp & Paper

Steel Mills

Vector Motor

Applications

Motor and Drive Speed Feedback

Extruders

Pickling Equipment

Processing Equipment

Paper Machines

Cranes

Test Stands