The L540 PLA plating line analyzer automates sampling, analysis, reporting, and (optionally) replenishment multiple streams including measurement of acids, alkali, metals and numerous other ions. The controller uses known and reliable pH, Redox (ORP), ISE and turbidimetric titrations. pH readings are auto calibrated to eliminate problems caused by in-process sensor drift. Spectral UV-Vis and Raman ranges provide analysis of many organic and inorganic constituents. All analyses are checked for repeatability, range, and tread, and, if necessary, are replicated for verification. Replenishment is initiated only after all user-configured checks are passed, including volume limits and/or operator approval.
Model L540PLA has configuration of Base model with one titration cell; pH, Pt, and reference sensors; microliter range dose pumps; venturi-driven sampling/waste pump; sample selection valves; and sample and reagent detectors.
Liquid Analysis Systems’ L500 series process controllers accomplish complete process line automation with analysis, replenishment, and reporting. The series are optimized for year-round reliability, ease of use, and minimum operating cost.

Series Features:
- Online titrametric, spectral, pH, and/or colorimetric analyses
- Auto sample retrieval and preparation
- Auto calibration
- Auto check of titrant, sample, and electrodes
- Auto repeatability, range, and trend checks
Through its display and keypad or optional Ethernet interface, users can view process status and history, and modify analysis intervals and other configuration parameters. This L540 offers a variety of hardware options for stream selection, sampling, sample preparation, and sample/reagent delivery to accommodate specific customer requirements.
Options:
- Multi-stream analysis
- Grab sample port
- Replenishment systems
- PC Manager Windows™ software
- Outputs for recording and alarming
- Auto sample strainer backflush
L540 PLA Automated Plating Line Analyzer Specifications
Ranges |
Per customer requirement; user configurable. |
Repeatability and accuracy |
Repeatability: 1% of range, typical. |
Methods |
|
Analytical drift |
Less than 1% per year, typical |
Cycle time |
15 minutes per analyte, typical, replicated. |
Reagent consumption |
100 to 700 μl / test, dependent on range. |
Power required |
105-240 VAC, 50-60 Hz |
Sample conditions |
0 to 25 psig, 10 to 70 °C, other: consult factory |
Sample connections |
¼” tube |
Sample streams |
1 to 10 |
Waste connection |
½” pipe or tube to unpressurized gravity drain |
Leak |
3/8” pipe or tube to drain |
Enclosure |
60cm H x 56 W x 40 D, NEMA 4X/IP66, wall mount. |
Reagent tray |
30 H (with reagents) x 50 W x 30 D |
Display |
76 x 56mm, LCD with backlight |
Output options |
Form C relay alarm, standard. Others per user requirement: 4-20 mA, 0-10V, IE browser window, TCP/IP or serial remote control, e-mail of status and alarms. |
Ambient conditions |
5 to 40°C. 5 to 95% humidity, non-condensing. |
Specifications subject to change

The L540 PLA plating line analyzer automates sampling, analysis, reporting, and (optionally) replenishment multiple streams including measurement of acids, alkali, metals and numerous other ions. The controller uses known and reliable pH, Redox (ORP), ISE and turbidimetric titrations. pH readings are auto calibrated to eliminate problems caused by in-process sensor drift. Spectral UV-Vis and Raman ranges provide analysis of many organic and inorganic constituents. All analyses are checked for repeatability, range, and tread, and, if necessary, are replicated for verification. Replenishment is initiated only after all user-configured checks are passed, including volume limits and/or operator approval.
Model L540PLA has configuration of Base model with one titration cell; pH, Pt, and reference sensors; microliter range dose pumps; venturi-driven sampling/waste pump; sample selection valves; and sample and reagent detectors.