Price: $189.99 | Compatible Instrument: Leica FlexLine TZ08 Manual & Touch Total Station; Matching Parts: TZ08 Mainboard, TZ08 Touch Screen, GEB361 Lithium Battery, GKL311 Dual AC/Car Charger, Vertical & Horizontal Motion Wheels

This OEM-spec TZ08 angle optical grating encoder (PN 879743) resolves core precision measurement failures of TZ08 total stations: original grating disk scratched/cracked after collision, optical code track contamination causing angle reading drift, random angle error jumps, encoder signal loss leading to instrument unable to boot angle system, inferior third-party grating mismatched line density triggering calibration failure, and aged encoder resulting in substandard 1″ angle accuracy for control network observation. 1:1 factory original high-density absolute optical grating assembly with matched readout sensor module, fully restore factory-standard 1-second ultra-precise angle measurement performance for high-speed railway deformation monitoring, tunnel control survey, cadastral mapping and large infrastructure stakeout projects.

Product Overview

The Leica TZ08 dedicated absolute angle encoder spare part (Part Number 879743) is a complete integrated optical grating & signal readout sensor assembly exclusively developed for Leica FlexLine TZ08 1″ total station, serving as the core angle measurement optical component. Integrated full assembly structure: ultra-precision glass optical grating disk with thousands of absolute code tracks + matched infrared transmitting & receiving sensor PCB bracket + positioning damping shock-absorbing cushion + gold-plated short FPC signal flat cable. The high-transmittance toughened glass grating adopts vacuum metal film etching process, uniform code line spacing, zero distortion, fully meet TZ08 factory 1″ angle resolution calibration standard. Built-in soft silicone damping pads eliminate vibration-induced signal jitter during field vehicle transport and mountain slope measurement. Gold-plated FPC contact terminals anti-rust and anti-oxidation, avoid intermittent angle reading offset caused by long-term construction mud and damp underground tunnel environment erosion. After professional installation and factory standard calibration, the encoder perfectly matches TZ08 instrument internal transmission worm gear system, retains the machine’s original IP66 dust & splash waterproof grade, block slurry and fine dust polluting optical grating code tracks again. Professional instrument calibration equipment required post-replacement to restore factory angle accuracy, no universal cross-model compatibility, exclusive for TZ08 series total station maintenance repair.

Core Advantages & Practical Structural Design

• 100% OEM grating line density, absolute code track layout, sensor signal parameters and positioning dimension fully consistent with factory original PN 879743 TZ08 angle encoder, direct core replacement for scratched, contaminated, signal-faulty original grating assembly
• High-precision vacuum etched glass absolute grating disk, factory calibrated 1-second angle measurement resolution, eliminate angle drift, random error jumps and reading lag during long-term continuous control network static observation
• Complete matched infrared transmit-receive sensor bracket integrated assembly, one-piece replacement without separate matching sensor spare parts, simplify instrument core disassembly maintenance workflow
• Surrounding integrated silicone shock-absorbing damping cushion, buffer impact vibration during field transport, effectively prevent secondary grating scratch damage after installation
• Gold-plated short FPC signal transmission flat cable, corrosion-resistant contact terminals, stable continuous angle signal output without data loss under complex construction electromagnetic interference environment
• Toughened high-transmittance optical glass substrate, anti-scratch coating on grating surface, easy to wipe clean mud and dust without damaging internal code tracks during daily instrument maintenance
• Exclusive single-model compatibility: only fit Leica FlexLine TZ08 1″ total station, matched with GEB361 high-capacity lithium battery and GKL311 AC/12V car dual-use dedicated lithium charger
• Compatible matching accessory: Trimble TSC3 / TSC2 Yellow Nylon Carrying Case ($25, 0.2kg, 18 × 12 × 10 cm)
• Precision fragile optical integrated assembly, packaged with shockproof foam box, separate storage in maintenance tool cabinet to avoid collision damage together with metal mechanical spare parts

TZ08 High Precision Survey Instrument Core Calibration Maintenance & Field Survey Application Scenarios

Critical core precision maintenance spare part for high-speed railway settlement deformation long-term monitoring, urban tunnel ultra-precise control network layout, large bridge static observation, open-pit mine high-precision topographic mapping and rural cadastral boundary high-accuracy measurement TZ08 total station projects. When original angle grating disk is scratched, contaminated or encoder signal failure leads to angle reading out of tolerance, professional survey maintenance technicians disassemble instrument vertical/horizontal transmission housing and replace this complete PN 879743 absolute angle encoder assembly, then perform full factory-standard horizontal & vertical angle 2-face calibration to restore original 1-second ultra-precise measurement performance. Shock-absorbing damping structure prevent new grating secondary damage in bumpy mountain construction sites; high-density absolute code track eliminate cumulative angle error for multi-turn control network observation. Store this fragile TZ08 angle encoder assembly separately in shockproof foam box, together with other tiny survey maintenance peripherals in our high-visibility yellow nylon data collector case; reinforced canvas belt loop supports waist hanging for convenient cross-region field instrument repair transport.

Product Specifications

Matching Survey Accessory: Trimble TSC3 / TSC2 Yellow Nylon Carrying Case ($25)

Constructed with thick tear-proof nylon fabric, this bright yellow field protective bag shields Trimble TSC2 & TSC3 handheld data collectors from scratches, dirt and minor impact damage. Equipped with solid canvas belt loop for waist mounting, the independent front storage compartment holds shockproof packaged TZ08 PN879743 angle encoders, TZ08 touch screen assemblies, vertical/horizontal tangent motion wheels, silicone keyboard mats and touch screen protectors. 20 units available in warehouse for immediate worldwide shipping.

Browse more Leica FlexLine TZ08 series high-precision core optical maintenance spare parts, absolute angle grating encoders, touch LCD display assemblies and lithium power accessories on xsurveying.com. We supply full series OEM-standard survey instrument core precision repair hardware to fully restore factory-standard 1-second ultra-precise angle measurement performance of TZ08 total stations for uninterrupted high-speed railway, tunnel and infrastructure precision field measurement workflows.