Calibration Using a Grab Sample as a Standard

diagnostic tool in determining the degradation of the electrode. Large differences between calibrations may indicate coating or damage to the measurement half-cell.

6.5 Calibration Using a Grab Sample as a Standard

The LXT-230 allows easy standardization to a grab sample value by placing the process value into the first calibration point.

Procedure:

1.Record the pH value of the process when the sample is extracted.

2.Record the pH value of the grab sample.

3.Calculate the difference between the two values as follows:

4.Immediately before making the calibration adjustment, note the current pH value on the display and add the pH differential to the current value. This "total adjusted" value is entered as the buffer value.

6.6Calibration Error Detection & Electrode Operational Guidelines

If the slope calibration performed in section 5.4 is not within the predetermined limits of the instrument, a flashing asterisk (*) will appear. The presence of the asterisk indicates a potential calibration problem. In general, if the asterisk appears, the integrity of the electrode, the buffer solutions or the handling procedure should be questioned. See the pH/ORP sensor manual for specifics on the electrode.

6.7 Back-to-Factory Calibration

This feature allows the LXT-230 to be reset to "ideal electrode" (Nernst equation) for electrode potentials. According to the Nernst equation, an ideal pH electrode has a zero isopotential at 7.00 pH and a slope of -59.16 mV per pH unit, an ORP electrode has an ideal slope of 1 mV per ORP. This feature is useful in providing a reliable starting point if the LXT- 230 has been mis-calibrated.

IMPORTANT: Ideal instrumentation calibration does not imply ideal system calibration.

The following procedure for returning the LXT-230 to factory calibration can be used for both standardize and span calibrations.

Procedure at the Standardization Menu:

1.Position the cursor under the "C" in "Cal."

2.Press both horizontal CALIBRATE keys simultaneously and observe the cursor briefly move to the right. The default setting is complete.

3.This procedure is required at BOTH of the calibration points.

2 pH	.00
Cal	-59.1 mV/ph


1 pH	7.00
Cal	0 mV@25

2 ORP	.0 mV
Cal	1.000 mV/ORP


1 ORP	.0 mV
Cal	.0 mVa

6.8 Output Calibration

The Output Calibration Menu is used to define the 4-20 mA range for the measurement. To change or expand the 4-20 mA range, use the following procedure.

Model LXT-230 Instruction Manual / 15

LXT-230 specifications

The Teledyne LXT-230 is a versatile and advanced sensor solution tailored for the demanding realms of aerospace, defense, and industrial applications. Designed to meet the high-performance requirements of these sectors, the LXT-230 brings together a blend of cutting-edge technologies and robust design to ensure reliability and precision.

One of the standout features of the LXT-230 is its exceptional data processing capability. The sensor incorporates a powerful onboard processing unit, which enables real-time data analysis and decision-making. This feature is crucial in applications where time is of the essence, such as in defense systems or real-time surveillance. The onboard processing not only enhances the speed of data acquisition but also reduces the need for extensive external processing resources.

In terms of sensing technology, the LXT-230 utilizes advanced photonics and electronic systems, allowing it to capture a diverse range of environmental parameters with high accuracy. Its multi-modal sensor architecture enables it to function effectively across various spectrum ranges, ensuring its adaptability to different operational contexts. Whether it’s monitoring atmospheric conditions, assessing structural integrity, or gathering intelligence, the LXT-230 excels in delivering reliable and precise outcomes.

The robust construction of the LXT-230 further enhances its appeal. Designed to withstand extreme environmental conditions, the sensor features robust materials that offer resistance to harsh weather, vibrations, and temperature fluctuations. This durability makes it particularly well-suited for deployment in remote and challenging locations, where other sensors might fail.

Another notable characteristic of the Teledyne LXT-230 is its user-friendly interface and flexible connectivity options. The system supports multiple communication protocols, allowing for seamless integration with other hardware and software platforms. This versatility ensures that operators can easily implement the LXT-230 into existing systems without undergoing substantial modifications.

Additionally, the LXT-230 is designed with energy efficiency in mind. Its low power consumption allows for extended operational periods, crucial for applications where continuous monitoring is required. As industries increasingly focus on sustainability and reduced operational costs, this energy-efficient design presents a significant advantage.

In summary, the Teledyne LXT-230 stands out as a premier sensor solution in today's tech-driven landscape. Its advanced processing capabilities, adaptable sensing technologies, robust construction, and user-friendly design make it an indispensable tool across various applications. Whether utilized in military operations, industrial monitoring, or scientific research, the LXT-230 is poised to deliver performance and reliability in challenging environments.