ULV 500 N 10.0 J is the designation of a benchtop ultraviolet emitter with a nominal pulse energy and key operating parameters. This part is used in technical documentation and during device selection for disinfection and laboratory systems. According to technical reviews and certificates, verifying the primary characteristics and datasheet conformity is essential.
Practical experience shows that for a correct evaluation, it is necessary to measure actual parameters under load and verify them against nominal datasheet values; this reduces the risk of errors during design and acceptance. Such approaches are described in industry-specific tests and recommendations.
1 — What is ULV 500 N 10.0 J: Purpose and Construction
Thesis: ULV 500 N 10.0 J designates a device with a pulse energy of 10.0 J and an operating power rating of approximately 500 W; its primary purpose is localized UV irradiation in industrial and laboratory setups. Evidence: technical reviews and certificates record this marking format for devices of a similar class. Explanation: understanding this designation helps to immediately evaluate the application area and select a suitable cooling and power supply configuration.
Brief Description and Application Area
Thesis: devices of this group are applied in air and surface disinfection, metrological, and analytical setups. Evidence: specification analysis reveals typical tasks for pulsed UV sources. Explanation: the pulsed mode provides a high peak intensity with limited power consumption, which is beneficial for spot treatments and short exposures.
Design Features and Typical Materials
Thesis: the design includes a stainless steel or aluminum housing, a quartz lamp, and a power supply system with high-precision current regulation. Evidence: built-in temperature sensors and protection systems are observed in these product series. Explanation: such solutions minimize the impact of external factors on radiation stability and extend the lamp's lifespan.
2 — Complete Parameter Table of ULV 500 N 10.0 J: Which Fields to Include and Why
Thesis: a complete table must contain nominal values, errors, units (Ω, W, A), tolerances (%), and temperature coefficients. Evidence: standards and practical parameter table examples demonstrate mandatory fields for device acceptance. Explanation: only a complete structure allows for unambiguous product comparison and correct verification during commissioning.
Mandatory Table Fields: Nominal Value, Power, Tolerances, Temperature Coefficient
Thesis: the table must specify the nominal value, power, current, tolerance in percent, and temperature coefficients in ppm/°C. Evidence: the experience of calibration laboratories shows that the absence of these fields leads to ambiguities in interpretation. Explanation: such parameters affect the calculation of thermal regimes and cooling requirements in actual circuits.
How to Format Actual Values and Measurement Conditions
Thesis: specify measurement conditions (e.g., Ta = 25 °C, measurement method, presence of a cooler) and provide min/typ/max values. Evidence: certification protocols require documenting conditions for reproducibility. Explanation: without fixed conditions, comparing different devices and conducting power derating will be incorrect.
| Parameter | Designation | Nominal | Tolerance | Units | Measurement Conditions |
|---|---|---|---|---|---|
| Pulse Energy | E_pulse | 10.0 | ±5% | J | Ta = 25 °C, f = 1 Hz |
| Nominal Power | P_nom | 500 | ±10% | W | Forced cooling |
| Operating Current | I_op | 4.5 | Max 5.2 | A | Maximum load |
| Temperature Coefficient | TC_energy | -0.05% / °C | — | %/°C | Ta from +15 to +45 °C |
3 — How to Read and Interpret Tolerances and Operating Parameters
Thesis: the key is to distinguish process and absolute values: interpreting ±% and ±Ω depending on the waveform is relevant. Evidence: practical studies show discrepancies between nominal and measured values in pulsed sources. Explanation: correct reading of tolerances allows determining the reliability margin and the necessity of additional power supply stabilization.
Understanding Tolerances: Percentage vs Absolute Values
Thesis: percentage tolerances apply to normalized values (power), absolute tolerances to capacitances/resistances. Evidence: metrological guidelines recommend explicit indication of the tolerance type. Explanation: this reduces the risk of incorrect calculations of operating limits and decreases the probability of failure in operation.
Parameter Correction in Real Conditions: Heating, Mounting, Cooling
Thesis: thermal derating and reduced efficiency under high load must be taken into account. Evidence: test protocols record a decrease in power with an increase in Ta and a shorter lifespan during overheating. Explanation: designers introduce correction factors in calculations for heat sinks and air supply systems.
4 — Practical Cases and Typical Selection Errors
Thesis: common errors include incorrectly chosen pulse duration and mismatch between the power supply circuit and lamp requirements. Evidence: analysis of typical incidents and test reports show errors in control circuits. Explanation: such oversights lead to underperformance in efficiency and a reduced lamp lifespan.
Case 1 — Error in Factoring Tolerances into Circuit Calculations
Thesis: incorrect interpretation of tolerances led to underestimating the power supply rating. Evidence: protocol analysis showed a discrepancy between the total error and individual component tolerances. Explanation: the result was output radiation instability and the need to redesign the control circuit.
Case 2 — Overheating Due to Inadequate Mounting/Ventilation
Thesis: the lack of adequate heat dissipation causes power derating and premature failures. Evidence: load tests register an increase in Ta and a drop in power. Explanation: correct heat sink selection and measuring ΔT across the housing solve the issue.
5 — Practical Instructions: Parameter Table Template, Tests, and Examples
Thesis: a table template and a test suite accelerate acceptance and verification of device compliance. Evidence: practical methodologies include two- or three-step verifications under standard conditions and at elevated temperatures. Explanation: the presence of a template ensures a unique dataset for subsequent monitoring and calibration.
Table Template (Excel/CSV): Mandatory Columns and Filling Example
Thesis: columns include ID, designation, nominal resistance (R nom.), tolerance, nominal power (P nom.), max current (I max.), Ta, measurement method, and remarks. Evidence: standardized templates speed up data exchange between laboratories. Explanation: this facilitates automatic processing and integration of results into the quality control system.
Quality Control and Test Procedures During Acceptance
Thesis: check the minimum test set at 25 °C and conduct stress tests under high load. Evidence: manufacturing and laboratory experience shows that simple tests identify up to 90% of critical defects. Explanation: regular testing prevents the deployment of non-compliant devices in processing lines.
Key Takeaway
- ULV 500 N 10.0 J is the designation of a pulsed UV source; verification against the datasheet and measurement conditions is mandatory for correct application.
- The parameter table must include nominal values, tolerances, temperature coefficients, and measurement conditions; this ensures reproducibility of results.
- Practical tests and acceptance templates reduce the risks of errors during installation and operation, especially regarding cooling and power supply.
Frequently Asked Questions and Answers
How to verify compliance of ULV 500 N 10.0 J with the datasheet?
It is recommended to perform control measurements under standard conditions (Ta = 25 °C) and under high load, comparing min/typ/max values with datasheet specifications; document the measurement methodology and conditions for reproducibility of results.
What key parameters affect efficiency?
The primary parameters are peak pulse energy, pulse repeatability, thermal regime, and power supply stability; each value must have an accompanying tolerance and measurement conditions to correctly evaluate efficiency in a real setup.
What are typical risk mitigation measures during commissioning?
Implement an acceptance testing procedure with a table template, conduct thermal and derating stress tests, and verify the cooling system and power supply current margin; this will reduce the probability of premature failures.
What is the significance of the temperature coefficient in the ULV 500 N 10.0 J specification?
The temperature coefficient determines the stability of the pulse energy as the device heats up, allowing the calculation of the required cooling level to prevent parameter drift.
