CALT 9 Leakage Tester

The CALT 9 leakage tester has been designed and developed to measure leakage rates and give a detailed print-out of the test parameters and results. It is particularly suitable for measuring and calculating the leakage rate of double "O" ring seals as fitted to packages for the transport of radioactive materials.

The CALT 9 is a portable instrument supplied in a robust case. The instrument is complete with all fittings including a reference volume to measure interspace volumes and a comprehensive instruction manual.

Operation

The CALT 9 is easy to operate. The internal computer displays a series of screen prompts that lead the operator through the leakage testing procedure in a manner that is easy to understand and follow.

All calculations are made by the computer. Full test details and results are printed out automatically at the end of the test. The CALT 9 uses the pressure drop or pressurise method to give a quantitative result. The software automatically corrects for the change in dynamic viscosity of air that varies with temperature, and also converts the calculated leakage rate into standardised leakage rate (SLR).

Variations

The instrument has been designed to be flexible to meet user requirements. Bespoke software and/or hardware can be supplied to meet specific customer requirements.

Menu options

The current version of the CALT software has five main options:

• Leakage test: pressure drop or pressure rise
• Measure volume: the volume of the interspace must be known or measured before leakage testing can be carried out
• Print-out: print out the last test performed; measure volume; leakage test
• Combined measure volume and leakage test
• Gauge: Pressure/temperature gauge with or without a print-out
• Utilities: password; calibration (calibrate temperature and pressure sensors, print-out calibration history, select primary or secondary calibration); system set (pressure rise or drop, standard [ISO or ANSI], reference pressure, user name to appear on print-out); date (set system clock and date)

Features

• Portable and robust
• Quality pressure transducer
• Built-in printer
• User calibration
• Store calibration for spare transducers
• Calibration protected against power loss
• Flat front panel for easy contamination checking
• Temperature probe
• Built-in electric pressuring pump
• Comprehensive print-out
• Battery operated and portable
• External battery socket for charging during storage
• Supplied with 2cc reference volume

Dimensions and weight

The dimensions are: 458mm wide x 331mm deep x 190mm; 11kg.

After-sales service

A full after-sales service is offered, including:

CALT 9 progression

The CALT 9 supersedes the CALT 8B with the introduction of a bespoke internal computer. The CALT 8B will continue to be supported for spares, maintenance, calibration, software and hardware upgrades.

Hardware

The CALT 9 hardware includes all the features of the CALT 8, with the following new features:

• Interface auto switch-off
• Display sleep mode
• Li-ion battery pack
• External charger socket
• Comprehensive battery management LEDs
• Audible alarm
• A single battery to power the interface and printer and computer
• Low EM emissions and susceptibility
• Battery meter

Software

The software is based on the CALT 8B version 2.42 software, which includes:

• Easy reboot
• Safe/protected calibration
• Multi-calibration (which allows a spare transducer to be used)
• Combined measure volume and leakage test if required
• Last test print-out from main menu
• Automatic parameter testing

If you are a CALT 8 user you will feel at home with the CALT 9, as the testing principles and the test procedure remain unchanged.

The CALT 9 builds on the experience of both the CALT 8 and CALT 5, incorporating features to meet users’ comments and generally to improve the instrument. Particularly noteworthy is the new Li-ion battery pack, which is robust and will take a lot of abuse with respect to over-charging, over-discharging and being left completely discharged for months. The battery compartment is accessible by removing front panel cover.