AI-TEK TACHPAK® 30 Series Dual-Channel Digital Process Tachometers

The TACHPAK® 30 Series from AI-TEK Instruments (formerly AIRPAX) represents the next generation of high-performance digital process tachometers, designed for critical speed monitoring, protection, and control applications across heavy industries . As microprocessor-based instruments, these dual-channel tachometers provide exceptional accuracy, fast response times, and extensive configurability to meet the demands of modern rotating machinery.

TACHPAK® 30 Series Model Number Table

The TACHPAK 30 series is available in three enclosure configurations to suit different environmental requirements. Below is the complete model number table based on official AI-TEK documentation:

T77530-10

T77530-40

T77530-70

T77630-10

T77630-40

T77630-70

Configuration Notes:

All models include dual-channel inputs, 2 mechanical relays, 2 solid-state relays, analog output, and RS485 communication

The T77530-40 (NEMA 4X) provides protection against hose-directed water and corrosion, ideal for food and beverage or offshore applications

The T77530-70 (Explosion Proof) is engineered for Division 1/Zone 1 hazardous areas where flammable gases or vapors may be present

All models are programmed via TACHLINK software or TACHTROL plus remote display.

Technical Specifications Summary

Parameter Specification

Input Power 80-264 VAC, 50/60 Hz; 12-30 VDC

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

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: 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)

Mounting DIN Rail

Certifications EMC/CE compliant, RoHS

For engineers and procurement professionals seeking a reliable, accurate, and flexible speed monitoring solution, the AI-TEK TACHPAK 30 series—available in models T77530-10, T77530-40, and T77530-70—offers the performance and durability required for critical rotating machinery protection.