Multi channel current module GL-IV series

Multi channel current module GL-IV seriesIntroduction:

GL-IV current testing module, specially designed for low current high-precision testing, supports multi range coverage, with a resolution of up to 1 μ A and stable measurement accuracy of ≤± 1%. In 48V system sleep current testing, it can clearly capture microampere level weak current fluctuations and accurately locate ECU standby power consumption abnormalities, easily meeting the testing requirements of LV124, LV148 and other vehicle specifications. It is compatible with GL260 A-CN, GL860 A series, GL2000, GL980 and GL7000, GL240, GL840-M, GL840-WV. It can achieve millisecond level high-speed sampling, store data continuously for a long time, and can easily handle real vehicle road tests and bench aging tests.

The product is divided into three series:

GL-IV: Multi channel current module (expandable up to 32 channels)

GL-IV-S: Portable multi-channel current module.

GL-IV-C: Wide range multi-channel current module.

Current module GL-IV series

The main features of GL-IV multi-channel current module are:

1. Wide current measurement rangeCapable of accurately measuring static currents ranging from microampere levels to larger operating currents (100A), meeting various testing requirements.

2. High sampling rateSupport high-frequency sampling, not only suitable for long-term monitoring of small current changes, but also particularly suitable for testing static current and standby current; It can also be used to monitor AC superimposed pulse signals.

3. Multi channel synchronous measurementSupports multi-channel input and can simultaneously collect current data from multiple circuits or sensors, greatly improving testing efficiency.

4. Low noise designThe module has good anti-interference ability, ensuring the purity and high accuracy of measurement data, and is suitable for precision testing environments.

5. Seamless compatibility with GL series recordersThis product series can be integrated with GL series data loggers to provide an overall efficient current measurement solution.

6. High stability and reliabilityMaintaining data stability and consistency during long-term data collection is suitable for application scenarios that require strict monitoring of current.

7. High precision, low voltage dropCompared to the traditional series resistance method for measuring current, which may cause voltage drop and data deviation, this product provides a solution. Not only does it ensure high measurement accuracy, but it also effectively avoids the impact of pressure drop, providing users with more reliable measurement results.

1mA measurement comparison (1A range)

1A measurement comparison (1A range)

From the above comparison, it can be seen that the GL-IV module can still maintain reading accuracy within 1% when measuring 1mA current, and even when the current is large, the voltage drop is controlled within a small range. In contrast, although the traditional resistance measurement method maintains an error of around 1% -2% throughout the entire testing range, it still has significant shortcomings due to factors such as resistance error and temperature drift. For example, when measuring high currents, the voltage drop across the resistor will significantly increase, which may cause the device under test (DUT) to malfunction. If a sampling resistor with a smaller resistance value is chosen to reduce the voltage drop, although it can maintain a certain measurement accuracy at the current value, as the working current decreases, the output analog voltage value at both ends of the resistor also decreases, and may even be lower than the noise level. This will lead to an increase in measurement errors, seriously affecting the accuracy and stability of measurement data, and is not conducive to long-term reliable data collection.

8. portableThe portable module has a volume of only 120 * 40 * 190mm, with an area similar to a 6.1-inch mobile phone and a weight of approximately 900g.

Main specifications of GL-IV multi-channel current module

GL-IV module specifications

*Accuracy does not include the precision of the data acquisition instrument.

GL-IV-S portable module specifications

*Accuracy does not include the precision of the data acquisition instrument.

GL-IV-C Wide Range Multi Channel Current Module Main Specification

GL-IV-C module specifications

*Accuracy does not include the precision of the data acquisition instrument.

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