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LTI-5000
 
  • Mass Flow
  • Pressure Decay/Change
  • Pressure or Vacuum
  • Flow Ranges from 0-10 sccm to 0-300 slpm
  • Accuracy to ± 1% Full Scale
  • 16 Pneumatic Channels
  • Separate NEMA 12 Control Enclosure
  • Easy Setup and Operation
  • 1200 Limit Tables
  • Graphing
  • Data Storage and Reporting
  • Ethernet and RS-232 Data Output
  • Remote Hosting Via the Internet

Single Channel LTI-5000 Leak Test




The LTI-5000 is a PC based unit that can be used for performing mass flow or pressure decay tests. This unit is recommended for applications that require the system to be placed on a plant network. This unit had the most flexible data collection means. The standard data collected is test start and completion time, test channel and limit table used, end-of-test pressure and flow reading, test result, and data export verification.
TEST METHODS
MASS FLOW  
The LTI-5000 displays corrected airflow readings through the use of a mass flow transducer. This state-of-the-art technology provides test results, which are independent of daily changes in barometric pressure and ambient temperature. This leak test instrument measures the leakage or flow of air through the part under test at a specific test pressure. When the leak test is initiated this instrument automatically pressurizes the part, allows the air pressure within the part to stabilize, and measures the actual leakage through the part. The leakage or flow is displayed in actual engineering units.
PRESSURE DECAY/CHANGE  
Two pressure decay/change methods are available depending upon the specific application. Applications with a high leak rate specification or a small test volume utilize a gage-pressure-decay test method. Applications with a low leak rate specification or a large test volume will use a pressure-differential-decay test method. With either method this leak test instrument pressurizes the test part, allows the air pressure within the part to stabilize, and measures the decay/change in pressure.
SETUP & OPERATION
The LTI-5000 is easy to setup and operate with the menu driven touch-screen in response to inputs from the operator. There are 1200 limit tables available for each channel. Setup parameters for each table include fast fill pressure and tolerance, test pressure and tolerance, test times, accept/reject limits, and consecutive reject limits. Tester setups include communications port parameters, data input and output devices configuration, and security options. The LTI-5000 can
be user programmed to run customized test sequences and control all tester input/output functions. Transducer calibration is also menu driven. Optional pendant boxes are available with local accept/reject pilot lights and a start/stop push button.
SYSTEM ENCLOSURE
One (1) NEMA 12 electrical enclosure and up to sixteen (16) pneumatic enclosures can be provided. The electrical enclosure contains the Pentium based PC with a color touch-screen display, power supplies, and indicators. Communication ports on the side of the enclosure allow the controller to output results to a data collection device or printer. Test results may also be output to a floppy drive or to the Ethernet port. The pneumatic enclosure(s) contain the pressure and leak transducers, regulators, and valves. Ports are provided for air and power connections. The
standard color for the TI-5000 is white.
DIMENSIONS
Control/Pneumatic Enclosure
Pneumatic Enclosure
24" high x 24" wide x 20" deep
Built to Specifications
WEIGHT
Control Enclosure
Pneumatic Enclosure
85 pounds
35-90 pounds
ENVIRONMENTAL CONDITIONS
Operating Temperature
Storage Temperature
35-130°F (2-55°C)
35-150°F (2-66°C
POWER REQUIREMENTS
Input Power
Frequency
Current
100-250VAC
50 or 60 Hz
3 amps maximum
SHOP AIR REQUIREMENTS (CLEAN, NON-LUBRICATED, DRY AIR)
Pressure Test Input Pressure
125 PSIG maximum (STD)
  Test Pressure
100 PSIG maximum (STD)
Vacuum Test Input Vacuum
25 in Hg maximum (STD)
  Test Vacuum
20 in Hg maximum (STD)
CONTROL INTERFACE
Inputs
(3) Remote Start/Stop bits per channel
24 VDC (STD) 115VAC Optional
Outputs (1) End of Test Signal per channel
24 VDC (STD) 115VAC Optional
  (1) Accept Signals
24 VDC (STD) 115VAC Optional
(1) Reject Signals
24 VDC (STD) 115VAC Optional
Printer (1) Parallel Port Available
Data Output Only
Communications (1) Serial Port Available
Data Output Only
Network (1) Ethernet Port
Computer Networking

PERFORMANCE (FLOW RANGE AND SCALING)
Minimum Full Scale Range
Standard Full Scale Range
Maximum Full Scale Range
Accuracy
Linearity
Repeatability
2.00 SCCM
10 SCCM to 30 SLPM
Up to 300 SLPM (Consult Factory)
± 1% of Full Scale
0.5% of Full Scale Range
± 0.2% of Full Scale
System Warm Up Time (from Room Temperature)
Casual Operation: 5 seconds
Precise Measurement: 10 minutes