RIM Tach 1250 Mill Duty Digital Tachometer Features: • Accepts shaft diameters up to 8" through the tachometer making it ideal for crane & hoist applications. • Mounts directly on motor frame, non-contact design with flexible couplings or bearings. • Rugged cast iron pancake construction has a double C face which can be sandwiched between the motor and a brake. • Rugged zero speed, magnetoresistive sensors are unaffected by grease, salt water, dirt or other common contaminants. • Modular design offers replaceable sensor/electronic modular for fast, easy field service. • Resolutions up to 2048 pulses per revolution with optional Index pulse. orthStar’s RIM Tach® 1250 digital tachometer provides position and velocity feedback from both AC & DC electric motors. The Model 1250 is designed for 12.5 inch diameter type C face motor frames and accessory mounts. This tachometer provides N precise, reliable speed signals for many monitoring and control applications and is a standard feedback device for AC & DC variable speed drives. The RIM Tach® 1250 is the process industry’s answer to a large thru-shaft option for precise speed control. Rugged Enclosure Easy Installation The RIM Tach® 1250 enclosure is constructed of ductile cast The non-contact magnetoresistive sensor and rugged magnetized iron. This ensures maximum strength and endurance for possible drum are designed and machined to function properly without exposure to acid wash down in pulp and paper applications. The any adjustments when assembled to NEMA C face (12.5 inch enclosure accommodates both end-of-shaft and thru-shaft diameter) motor frames and accessory mounts. There are no mountings and is universally machined to accommodate all bearings to fail or requirements for flexible couplings because the sensor modules, regardless of the desired pulse count. magnetized drum assembly is attached directly to the shaft. The mill duty latching connectors are standard. These sealed connectors are a snap to wire by simply inserting the stripped Reliable Magnetoresistive Technology conductor in the plug and tightening the screw terminals. There is The RIM Tach® 1250 sensor module which has been engineered no need to field solder or to struggle with a crimp pin. The pulse to provide a non-contact sensor and electronics in one count output is very simple to change, just remove four screws interchangeable hermetically sealed package. Each patented and slide the desired pulse count sensor module in place. magnetoresistive sensor module has encapsulated surface mount electronics. The protected electronics provide resistance to water, oil, dirt, high temperatures, shock and vibrations and overall harsh environments. The Model 1250 can accommodate up to 2048 pulses per revolution and is bidirectional providing square wave outputs. ©NorthStar Technologies, Inc. /A LakeShore Company 575 McCorkle Blvd., Westerville, OH 43082 Tel: (614) 818-1150 Fax: (614) 891-6909 www.northstar-tec.com sales@northstar-tec.com 791-7003-00 Rev. 1 service@northstar-tec.com When ordering the RIM Tach® 1250 digital Electrical Specifications tachometer, it is necessary to specify the Resolution 60, 64, 75, 120, 128, 150, 240, 256, 300, 480, 480Z, 512, 512Z, options of pulse count, shaft size, number of 600, 600Z, 960, 960Z, 1024, 1024Z, 1200, 1200Z, 2048, 2048Z sensor modules, and output circuit type. Use Frequency Response 0 - 120 kHz the table below to construct the model number. Pulse Code Incremental, marker, quadrature, complements Ordering Information Output Phases A Phase, B phase: 90° phase gap; Z phase: Once per rev (480 PPR and greater only) A AA A Encoder Type Pulse Duty Cycle 50% ± 15% (within the defined mechanical specs) Ordering Code RIM125 Quadrature Accuracy 90° ± 22° (within the defined mechanical specs) B BB B Pulse Count Output Type High speed, differential line driver 60, 64, 75, 120, 128, 150, 240, 256, 300, 480, Rise and Fall Time Less than 1 µs at 10,000 pf typical 480Z, 512, 512Z, 600, 600Z, 960, 960Z, 1024, Current Consumption 45 mA typical plus line driver load 1024Z, 1200, 1200Z, 2048, 2048Z Output Current Capability 150mA maximum continuous C CC C Shaft Size ESD Protection 2kV 1.125" Thru-shaft set screw style T01 1.375" Thru-shaft set screw style T02 Mechanical Specifications 1.625" Thru-shaft set screw style T03 Maximum Operational Speed 7,000 RPM 1.875" Thru-shaft set screw style T04 Available Axial End Play 0.016" ±0.008" 2.000" Thru-shaft set screw style T05 Enclosure Configuration Standard NEMA 12.5 inch C face or accessory flange to meet 2.125" Thru-shaft set screw style T06 NEMA MG1-4 standards 2.250" Thru-shaft set screw style T07 Enclosure Material Ductile iron casting 2.375" Thru-shaft set screw style T08 2.500" Thru-shaft set screw style T09 Environmental Specifications 2.875" Thru-shaft set screw style T10 Operating Temperature -40° to +80°C Shaft sizes 4.5 in to 8 in available TXX Operating Humidity MIL-STD-810E in 2048, 1024, 512, and 256 only. Vibration Minimum 18 g’s RMS, 5 - 2000 Hz D DD D Number of Sensor Modules Chemical Resistance Salt spray, most solvents, mild acids and bases Single module 1 Second isolated module 2 Shock (SensorModule) 1 meter drop tested, min 30 g’s shock spectrun EEEE Output Circuit Type Interface Specifications Line drive LD Power +5.0 to +15.0 VDC Open collector OC Output Differential output swinging between Vcc-0.6 and Gnd Connector 10 pin industrial latching connector w/ 1/2" NPT fitting Example: Cable 22 - 14 AWG, 6 conductor (8 conductor for index modules) * Specifications subject to change without notice. RIM125 1024 TO4 2 LD AB C D E Dimensional Drawing Also From NorthStar: Ideal use with NorthStar's ™ HS56 Dual Output Unit, ™ the Intellitach continu- ously monitors and controls encoder feedback to elimi- nate downtime from loss of encoder signals. Powered from 115 or 230VAC with dual isolated, short circuit protected encoder power supplies. LED indicator, high power line driver outputs, cabinet mount.