Component measuring instruments Measure from very low (ji Í2) to very high (MS2) resistances with a single instrument Along with capabilities tur laM. precise UIL-LIS LI [ciiiccils «ver a broad resistance range. Model 354] also provides limerions loi temper;!! ti re. correction, comparator and data I/O. Employini! ;i ionr-tcrm inai measurement method, this instrument is particularly suitable lor measuring the resistance of motor and transformer windings, relay/switch and connector contacts, PCB patterns, chip inductor DC resistance and in shipping inspection tests.

1 Speed & Precision at Their Highest From the Laboratory to System Applications (All indicators shown lit for purposes of illustration) Major Features ● Wide Measurement Range 0.1 µΩ (20 mΩ range) to 110.000 MΩ ● High Speed & High Precision Measurements As fast as 0.6 ms with 70 ppm precision (in the 2 kΩ to 110 kΩ range) ● Low-Power Measurement Function Essential for DCR measurements of chip inductors and connector contacts ● Comparator and BIN Functions Fast PASS/FAIL judgments, and measurement value ranking in ten levels ● Measurement Fault Detection Enhanced measurement reliability by monitoring...

2 ■ Comparator Compares measurements with preset upper and lower limits, and displays and outputs the judged range of each measurement. Two setting methods are available: absolute value (upper/lower limit setting) and relative value (% of a reference value), and judgment results, indicated by Hi, IN or Lo LEDs and beeper, are also output via EXT I/O, RS-232C and GP-IB interfaces. ◆ Judgments Hi: Display Value > Upper Limit, or OF IN: Display Value between Upper and Lower Limits Lo: Display Value is < Lower Limit, or -OF ◆ Relative Value Judgment Display: {(Measured Resistance) – (Reference Value)}...

3 Two types of temperature correction ■ Temperature correction functions regardless of materials and temperature ■ Temperature Correction by Analog Output (Infrared Thermometer) Using the 9451 Temperature Probe, resistance values measured at ambient temperature can be corrected by applying a thermal coefficient so that the display shows the corresponding resistance values at any other temperature. Make temperature corrections by measuring the surface temperature of the measurement object using the analog output from an infrared thermometer, or through the RS-232C interface. Even when the measured...

4 Multi-functional support for various applications ■ Measurement Fault Detection Integrity of source and sensor leads and the constant-current supply are continually monitored to ensure measurements with high confidence. When a measurement fault is detected it is indicated on the instrument, and ERR is output from the EXT I/ O interface. ■ Offset Voltage Compensation Thermoelectromotive force occurs at the contact point of different metals. This force affects measurements, and if large enough, it can result in measurement errors. The offset voltage compensation function minimizes the effect...

5 Ideal for high-speed automated production lines External control by EXT I/O Starting measurement and loading measurement conditions can be externally controlled, and judgment results, BIN and BCD data can be output, providing easy incorporation in automated lines. General-purpose output is implemented by control of output signals using : IO : OUT commands. TC Sensor EXT I/O GP-IB RS-232C When connecting an infrared thermometer to the RS-232C interface, the GP-IB function is not available. ■ External Trigger Timing Chart Contact State EXT I/O Signals Open Connect t1 ● Input Signals LOAD (0 –...

6 ■ Accuracy (1) Resistance Measurement [1-Year Accuracy (at 23±5ºC)    Accuracy: ±(ppm of rdg. + ppm of f.s.)] Offset voltage compensation :   OFF (upper)   ON (lower)   (20 mΩ to 20 kΩ ranges) Maximum display value Resolution 20.0000 mΩ 0.1 µΩ 200.000 mΩ 1 µΩ 200.000 mΩ 1 µΩ 2Ω 2000.00 mΩ 10 µΩ 20 Ω 20.0000 Ω 100 µΩ 200 Ω 200.000 Ω 1 mΩ 2 kΩ 2000.00 Ω 10 mΩ 20 kΩ 20.0000  kΩ 100 mΩ 100 kΩ 1 MΩ 10 MΩ 100 MΩ 110.000  kΩ 1100.00  kΩ 11.0000 MΩ 110.000 MΩ 1 Ω 10 Ω 100 Ω 1 kΩ Range *1  20 mΩ 200 mΩ (1A) 200 mΩ *2 (100mA) 1 ppm=1/1,000,000 (100 ppm=0.01%) SLOW2 SLOW1 MEDIUM FAST 1000 + 150 1000 + 10...

7 ● Sampling (Resistance and Low Power Resistance measurements) ■ Specifications Measurement Range switching Zero adjust Trigger Sampling Analog response time Functions : Four-terminal resistance measurement   0.1 µΩ (20 mΩ range) to 110.000 MΩ   Low power four-terminal resistance measurement   10 µΩ (2 Ω range) to 2.00000 kΩ   Temperature measurement (Pt) –10.0 to 99.9ºC   Temperature measurement (analog) 0 to 2V Measurement time (from trigger until EOC=ON) [ms]   (t4+t5 in Timing Chart on page 5) Supply Frequency 50Hz 60Hz SLOW2 455 ±10 449 ±10 SLOW1 155 ±5 149 ±5 MEDIUM 21 ±1 17 ±1 FAST 0.6 ±0.3...