AI-TEK T77630-10 TACHPAK 30 Series Dual-Channel Digital Process Tachometer

The AI-TEK T77630-10 is a premier member of the TACHPAK® 30 Series, representing the next generation of dual-channel digital process tachometers from AI-TEK Instruments (formerly AIRPAX). Unlike its DIN-rail mounted counterparts in the TACHPAK family, the T77630-10 features a panel-mount design with an integrated LCD display, making it ideal for applications requiring local visual indication of speed, rate, or process variables . This sophisticated instrument measures input frequency from two independent sensors and converts the resulting values into analog outputs, relay functions, and real-time digital displays for comprehensive rotating machinery monitoring .

Key Features & Benefits

Integrated Display and User Interface

128×64 LCD Graphic Display: Provides clear visualization of dual-channel speeds, calculated results, alarm status, and user-defined engineering units (RPM, FPM, etc.) 

Front Panel Programming: Allows direct configuration without additional software, plus compatibility with infrared remote control for safe operation in hazardous areas 

Panel Mount Design: Standard ¼ DIN enclosure (model T77630-10) for easy integration into control panels 

Exceptional Performance Specifications

Blazing Fast Response: 7.6 ms for analog and display updates, 16.5 ms for mechanical relays, and an incredible 2 ms for solid-state relays—critical for overspeed protection applications 

Superior Accuracy: 0.1% accuracy for analog and display functions; 0.005% accuracy for relay functions 

16-bit D/A Conversion: Delivers 610 nanoamps per step resolution for precision analog output 

Flexible Power and Input Capabilities

Universal Power Supply: Accepts wide-range 80-264 VAC (50/60 Hz) and 12-30 VDC, suitable for global installations 

Dual-Channel Inputs: Accepts two independent sensor signals including:

Sine wave (from passive magnetic sensors like the 70085 series)

Square wave TTL signals

Bi-directional Hall effect sensors with quadrature decoding for direction sensing 

Technical Specifications

Parameter Specification

Model Number T77630-10

Input Power 80-264 Vac, 50/60 Hz; 12-30 Vdc 

Enclosure Type Standard Panel Mount (¼ DIN) 

Net Weight 0.9 lbs (0.4 kg) 

Input Signals Sine wave (20 mV to 50 V), Square wave (TTL), Bi-directional quadrature 

Display 128×64 LCD graphic display with backlight 

Analog Output 0-20 mA, 4-20 mA, -20 to +20 mA (programmable) 

Analog Accuracy 0.1% over temperature and load 

Mechanical Relays 2 Form C, 6 A @ 277 Vac 

Solid-State Relays 2 Form A, 0.4 A @ 60 Vac/DC 

Response Time Analog/Display: 7.6 ms; Mechanical Relays: 16.5 ms; SS Relays: 2 ms 

Communication RS485, USB 2.0 (via TACHLINK) 

Operating Temperature 14°F to 131°F (-10°C to 55°C) 

Programming Methods Front panel, TACHLINK software, or TACHTROL Plus remote display 

Certifications EMC/CE compliant, RoHS