LOM-510A Features and accessories to assure that very low resistance measurements are accomplished accurately, easily, and economically. Features: • 1 pQ resolution • 0.02% basic accuracy • Digital output • Four measurement modes • Auto-zero switched dc mode • Probes for chips and traces • New switch design, improves reliability • New external voltage selector switch • New IEC inlet adapter with fuse The LOM-510A has 4% digits, 0.02% basic accuracy and 1 pO resolution. Its 4-terminal measurement technique eliminates lead resistance errors and 80 dB of ac noise rejection provides rock-steady readings even in noisy locations. The unit comes with rugged 4-terminal test clips and a large selection of optional probes, clips and fixtures allowing attachment to any low-resistance unknown. Switched dc Mode: Allows measurement of switch contacts, welds, shunts, PC board tracks and other primarily resistive elements. Thermal emf effects are eliminated. Constant dc Mode: Suitable for measuring the resistance of inductive components such as coils or transformers. Pulsed Mode: Provides low drive current to allow measurements of fuses, thermistors, and other thermally sensitive devices. Dry Circuit: Assures that oxides and film contacts are not punctured. The Dry Circuit Mode limits the open circuit voltage to 50 mV. The Model LOM-510A/20 limits the open circuit voltage to 20 mV. Model LOM-510A Micro-ohmmeter shown with LOM-501C Standard 4-Terminal Kelvin clips Accuracy: SW (switched dc): 0.02% + 2 counts +2 pO dc (continuous dc): 0.04% + 2 counts + 2 pO Pulsed mode: 0.02% + 4 counts + 2 pO Zero Adjust: Active only in DC (Continuous dc) mode. Noise Rejection: 80 dB for SW (Switched dc) and Pulsed Mode 60 dB for DC (Continuous dc) mode. SW (Switched dc) Mode: Current switched on for 166 ms, then off for 500 ms (25% duty cycle). Pulsed Mode: One cycle of SW (Switched dc) mode; enabled by shorting two contacts on rear panel connector. Display: 4% digit, 0.5 inch, red LED display. Display Overrange Indication: Flashes for DC (Continuous dc) and SW (Switched dc) blanks in Pulsed mode Measurement Rate: 1.5 readings/second Connections to Unknown: 4-terminal Kelvin leads with shield Outputs: 5 BCD digits for value and polarity; Pulsed Mode Control lines; power supply lines; 25 pin "D" connector. Warm up time: 1 minute to rated accuracy Accuracy vs. Temperature: Stated accuracy applies over an ambient temperature range of 18 to 27 °C. Error doubles over the range of 10 to 40 °C. Accessories Supplied: LOM-501 test clips Power Requirements: 105-125 Vac or 210-250 Vac; 50-60 Hz selectable on rear panel 30 W max. Mechanical: Dimensions: 22.9 cm W x 5.1 cm H x 27.9 cm D Temperature Range: 15° to 30°C Storage Range: 0°C to 40°C A convenient single unit containing a complete set of (5) working standard grade resistors for complete calibration of the micro-ohmmeter. in the Gennaa Tradition www.ietlabs.com

High Accuracy Micro-Ohmmeter LOM-510A ACCESSORIES 4-Terminal General Purpose Kelvin Clips Cable Assembly: LOM-501C 4-Terminal Kelvin Microprobes Cable Assembly: LOM-506 Suitable for connection in most applications Suitable for: - chips • Fine-point, springVersions • Jaw-Opening - 3/8" - circuit board components loaded tips (1.27 mm) LOM-501C - 1m (39") • Miniature Tips - conductor traces LOM-501C-2m - 2m (79") • Rugged - inside of connectors LOM-502C - clips only LOM-501 U - unterminated cable Wide Opening Kelvin Clips Cable Assembly: LOM-501W 4-Terminal Heavy Duty Kelvin Clips Cable Assembly:...