LTT-Series Torque Analyzer – FAQ & User Guide

The Mountz TorqueLab LTT-Series Torque Analyzer is a torque testing and documentation system designed for calibrating, testing, auditing, and verifying the performance of hand torque tools and power tools. The LTT features a built-in transducer and can connect to compatible Mountz torque sensors, providing flexibility for a wide range of torque measurement applications. It is commonly used by calibration laboratories, quality departments, manufacturing facilities, and metrology professionals.

Quick Answer

The LTT-Series Torque Analyzer is used to calibrate, test, audit, and verify torque tools. It combines a built-in transducer with the ability to connect external Mountz torque sensors, making it suitable for a wide range of torque measurement and documentation applications.

Who This Is For

Quality engineers and quality assurance teams
Calibration technicians and metrology laboratories
Manufacturing and process engineers
Assembly and production teams
Companies implementing torque verification programs
Facilities performing in-house tool calibration
Aerospace, automotive, electronics, medical device, and industrial manufacturers

When Should You Use This?

Use the LTT-Series when:

Torque tools require routine calibration or verification
Tool performance must be documented and tracked
Hand tools and power tools need to be tested
External torque sensors are required
Torque auditing is part of the quality process
Tool settings need to be adjusted and validated
Statistical data collection is important for quality control programs

When Should You NOT Use This?

Do not use the LTT-Series when:

Impact tools are being tested
A simple verification device is sufficient for the application
The application does not require calibration, auditing, or documentation capabilities

For basic torque verification applications, other Mountz testing solutions may be more appropriate.

How the LTT-Series Works

The LTT-Series measures torque using either its built-in transducer or compatible Mountz torque sensors.

The analyzer:

Measures torque values
Verifies tool performance
Assists with tool calibration and adjustment
Stores torque readings
Supports torque auditing and verification programs
Downloads data to a PC through a USB connection
Provides real-time graphing through associated software

Result:

Improved quality control
Faster tool verification
Better calibration management
Improved documentation and traceability
Increased confidence in torque tool performance

Core Features

Built-in transducer
Compatible with Mountz torque sensors
ARCII auto-recognition technology
USB interface for downloading readings
Stores up to 5,000 data points
Real-time clock for time stamping readings
Go / No Go LED indicators
Built-in Tool Test operation
Real-time graphing through PC software
Rechargeable Li-Ion battery
Torque and angle measurement capability when used with compatible sensors

Configuration Options

Built-In Transducer

Each LTT model includes a built-in transducer within its specified torque range.

External Torque Sensors

The LTT can connect to compatible Mountz reaction and rotary torque sensors, including torque and angle sensors. ARCII technology automatically recognizes connected sensors.

Operation Modes

The LTT offers six operation modes:

Track
Peak
First Peak
Audit
Spindle Audit
Torque + Angle

Software Programs

The LTT supports:

Torque Meter Interface Program
Torque Meter Bootloader
Excel Add-In for real-time data collection

Available Models (LTT-Series Torque Analyzers)

LTT10i

Torque Range: 1–10 lbf.in
Drive Size: 1/4" Female Square

LTT25i

Torque Range: 2.5–25 lbf.in
Drive Size: 1/4" Female Square

LTT50i

Torque Range: 5–50 lbf.in
Drive Size: 1/4" Female Square

LTT100i

Torque Range: 10–100 lbf.in
Drive Size: 1/4" Female Square

LTT250i

Torque Range: 25–250 lbf.in
Drive Size: 1/4" Female Square

LTT50F

Torque Range: 5–50 lbf.ft
Drive Size: 3/8" Female Square

LTT100F

Torque Range: 10–100 lbf.ft
Drive Size: 1/2" Female Square

LTT250F

Torque Range: 25–250 lbf.ft
Drive Size: 1/2" Female Square

Setup & Adjustment

Charge the analyzer before use
Install the appropriate rundown adapter when testing power tools
Connect the tool or sensor
Select the desired operation mode
Perform calibration, testing, or verification activities
Save or export measurement results

A rundown adapter is included with the LTT for testing and calibrating power tools.

Can It Be Used with External Torque Sensors?

Yes.

The LTT-Series is designed to operate with compatible Mountz torque sensors, including:

Reaction torque sensors
Rotary torque sensors
Torque and angle sensors
Force sensors

ARCII technology automatically recognizes connected sensors and loads the appropriate calibration information.

Decision Guide

LTT-Series vs EZ-TorQ III

Use the LTT-Series when:

External torque sensors are required
Multiple torque ranges need to be covered
Torque and angle measurement is needed
Advanced testing and auditing capabilities are required
Calibration laboratories need greater flexibility

Consider the EZ-TorQ III when:

A portable analyzer with a built-in transducer is sufficient
External sensors are not required
Routine verification is the primary application

Use Cases (Real-World Examples)

1. Calibration Laboratory

Problem: Multiple torque tools require calibration across a wide range of torque values.

Solution: The LTT can use external torque sensors to support multiple torque ranges.

2. Production Tool Verification

Problem: Assembly tools require regular validation between calibration intervals.

Solution: The LTT provides quick verification and auditing capabilities.

3. Quality Control Programs

Problem: Torque data must be documented and reviewed.

Solution: The analyzer stores readings and exports data for reporting and analysis.

4. Tool Testing & Adjustment

Problem: Torque tools require setup and adjustment before use.

Solution: The LTT allows operators to measure and adjust tool settings accurately.

Troubleshooting

Issue 1: Sensor not recognized

Cause: Incorrect cable connection or incompatible sensor.

Solution: Verify sensor compatibility and cable connections.

Issue 2: Inconsistent readings

Cause: Improper setup, worn-down adapters, or sensor issues.

Solution: Verify setup and inspect accessories.

Issue 3: Data not downloading

Cause: USB connection or software configuration issue.

Solution: Verify software installation and USB connectivity.

Issue 4: Tool fails audit testing

Cause: Tool may require adjustment or calibration.

Solution: Verify tool settings and perform calibration as needed.

Calibration & Standards

Supplied with ISO 17025 Certification of Calibration
Accuracy:
- ±0.5% of reading from 20% to 100% of full scale
- ±1% of reading from 10% to 20% of full scale
Designed for calibration, testing, auditing, and verification applications

Integration / Advanced Notes

ARCII sensor auto-recognition technology
USB interface for PC connectivity
Real-time graphing capabilities
Stores up to 5,000 readings
Excel Add-In for real-time data collection
Compatible with torque, force, rotary, and torque-angle sensors
Torque and angle displayed simultaneously when used with compatible sensors

Media & Supporting Content

Need Help?

Contact Applications Engineering for setup guidance
Speak with Sales for product selection
Call us:
- North America:(408) 850-9978
- International: +44 1428 741756