Croft CALT 9 User manual

CALT 9
Leakage Tester
Description
The CALT 9 leakage tester has been 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 seal closure arrangements of transport packages for 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 has been designed for ease of operation. The internal computer displays a series of
screen prompts which 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 (see next page).
The CALT 9 uses the pressure drop or pressure rise method to provide a quantitative result of
leakage rate. The software automatically corrects for the change in dynamic viscosity of air which
varies with temperature, and also converts the measured 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 customer-specific 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
oMeasure volume
oLeakage test
oCombined measure volume
and leakage test
•Gauge - Pressure/temperature gauge
with or without a print-out
•Utilities:
•Password
•Calibration
oCalibrate temperature and
pressure sensors
oPrint-out calibration history
oSelect primary or secondary
calibration
•System set
oPressure rise or drop
oStandard (ISO or ANSI)
oReference pressure
oUser name to appear on print-
out
•Date
oSet 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
Width (mm)
458
Depth (mm)
331
Height (mm)
190
Weight (kg)
11
After Sales Service
A full after sales service is offered including:
•Calibration and complete instrument functional check over
•Spare parts/consumables either installed or supplied for user installation
•Training at Croft Associates’ offices or on site
•Software upgrades and customer-specific changes
•Hardware modification
•Hot line support
•Instrument service

Measure Volume
CALT 9 Serial No: 0001
System Date: Mon 26 Feb 2007 10:18:24
Calibration Set No: 1 (10 days old)
Temp Sensor No: ISN190 (10 days old)
____________________________________
USER NAME
CALT 9 - Version 1.00
***MEASURE VOLUME***
_____________________________________
Reference Volume:
Reference Volume No:
Test Reference No:
Design/Serial Nos:
Number of Readings:
Comment:
2cc
CI001
CI95001
2863B/001
1
Lid
Pressure mbar Volume
Atmos Start Final (cc)
_____________________________________
996.15 2119.33 1954.81 11.89
Average Volume: 11.892 cc
Sig: ________________ Date: _________
(Tested by)
Sig: ________________ Date: _________
(Supervisor)
Pressure Drop Test
CALT 9 Serial No: 0001
System Date: Mon 26 Feb 2007 10:18:24
Calibration Set No: 1 (10 days old)
Temp Sensor No: ISN190 (10 days old)
____________________________________
USER NAME
CALT 9 - Version 1.00
Pressure Drop
***LEAKAGE TEST***
____________________________________
Test Reference No:
Design Serial Nos:
Comment:
Interspace Volume:
Settling Time:
Test Duration:
Temperature:
Temperature Ratio:
μ ratio:
Pass Rate:
Max Pressure Change:
CI95001
2863B/001
Lid
11.892 cc
5 mins
10 mins
25°C
1.000
1.000
3.0E-04 bar cc/sec
48 mbar
_____________________________________
***RESULTS***
Pressure mbar Date/Time
_____________________________________
Atmos: 1002.89
Start: 2099.75 20 DEC 1994 09:33:48
Final: 2095.62 20 DEC 1994 09.43.49
______________________________________
Leakage Rate: 2.4E-05 bar cc/sec
***PASS***
Standard Conditions:
Temperature:
Upstream Pressure:
Down stream pressure:
25°C
1000 mbar
0 mbar
Sig: ________________ Date: _________
(Tested by)
Sig: ________________ Date: _________
(Supervisor)
When a combined test for measuring volume and leakage is performed, the print-outs above are
combined with a single header and the common items printed only once.

Croft Associates Ltd
F4, Culham Science Centre,
Abingdon, Oxon OX14 3DB, UK
T:
F:
[phone]
[phone]
W:
E:
www.croftltd.com
[e-mail]
CALT-CALT 9-OCT15.docx
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 following new features:
•Interface autoswitch 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 be comfortable 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. This is robust and will take a lot of abuse with respect to overcharging, over discharging
and being left completely discharged for months. The battery compartment is accessible by removing
front panel cover.