Precision low resistance measurement
In low current circuits, the contact failure of electromechanical components is the main problem in component reliability. HP 4338B provides optional low AC test signal (1 μ A~10mA). At present, users can characterize the low resistance characteristics of electromechanical components under the condition of low current. The high resolution of 10 μΩ can be used to determine the tiny difference of relay, switch, connector, printed circuit board pattern and cable in contact resistance test. The 1kHz test signal eliminates the potential error introduced by the influence of thermoelectric on the contact of the tested element. The 1kHz AC test signal is the method to check the internal resistance of the battery, because it avoids the consumption of DC energy.
High speed measurement
High speed (34ms) built-in comparator and HP-IB/processor interface may form a measurement system with automatic processor and external computer, so that the production test time can be reduced to the low limit of Zui.
Automatic measurement mode
When a large number of continuous tests are carried out and the test signal level is not a major factor, the automatic measurement function will enable the instrument to select the appropriate test signal and set the measurement range.
Technical indicators:
Measurement function
Measuring parameters: R (AC resistance), X (reactance), L (inductance), | Z | (impedance), θ (phase [°])
Combined parameters: R, R-X, R-L, Z - θ (only applicable to series mode)
Math function: deviation and relative deviation (expressed in percentage)
Display number: 3.4 or 5 digits (optional)
test signal
Test frequency: 1kHz
Frequency accuracy: ± 0.1%
Test signal level: 1 μ A, 10 μ A, 100 μ A, 1mA, 10mArms
Level accuracy: ± (10%+0.2 μ A)
Zui high voltage at both ends of the sample: in any case, the peak value of zui is 20 mV
measuring range
Parameter measurement range
R 10μΩ～100kΩ
10. | Z | 10 μΩ~100k Ω (typical value)
L 10nH ～ 10H (typical value)
θ - 180 °~+180 ° (typical value)
Measurement accuracy: the basic accuracy of R is ± 0.4%
Measurement time: time interval from triggering command to EOM signal output on processor interface port
Mode time (typical value)
Short 34ms
Medium 70ms
900ms long
Correction function
Short circuit error is 0: eliminate the measurement error caused by stray parasitic impedance in the test fixture
Comparison function
Set high/compliance/low limits for each primary and secondary measurement parameter
Contact inspection function
It can detect the contact fault between the test fixture and the device
Other functions
Superimposed DC: ± 42Vdc (large value of zui) may be given at the measuring end
Storage/recall: 10 instrument settings can be stored/recalled by internal nonvolatile memory
Continuous storage function: if the instrument is cut off or power failure occurs, the instrument settings will be automatically stored (≤ 72 hours at 23 ± 5 ℃)
HP-IB interface: all control settings, measured values and comparator information
Processor interface: all output signals are negative logic, optical isolation open collector
Output signals include: high/coincidence/low, index change, measurement end and alarm. Input signal is key lock and external trigger
General indicators
Power requirements: 198~264V, 47~66Hz, 45VAmax
Operating temperature: 0 °～ 45 ℃
Size: 320mm (W) × 100mm (H) × 300mm (L)
Weight: 4.5kg
Ordering Information
Options
Opt ABA English Manual
Opt ABJ Japanese Manual
Opt OBO omits operation manual
Opt W30 Extended Service
16338A Test Lead Kit
16143B1 pairing cable (0.6m)
16005B2 Kelvin clamp test lead (0.4m, with large clamp)
16005C3 Kelvin IC clamp test lead (0.4m, clamp with IC)
16005D3 Kelvin IC clamp test lead (0.4m, clamp with black IC)
16044A SMD Kelvin contact test fixture
16006A4 pin probe test lead (0.4m)
16007A5 alligator clip test lead (0.4m, with 2 red clips)
16007B5 alligator clip test lead (0.4m, with 2 black clips)
16064B LED display/trigger box
{1 Required when 16005B/C/D, 16006A and 16007A/B are used;
2 A pair of 16005B shall be measured;
3 It is used with 16005C (1) and 16005D (1);
4 A pair of 16006A is required for measurement
5 for use with 16007A (1) and 16007B (1)
