Micro-Ohmmètre

Galerie et schémas techniques

Description

Caractéristiques

• Excellent rapport qualité/prix
• Mesure 4 points pour plus de précision

Spécifications techniques

bly

LOM-501W LOM-501TF

(SW)

DC

1 Ω

20 ppm/year 0.25 W 10 ppm/°C 0.5 ppm/mW

15 Ω

10 ppm/year 0.1 W 3 ppm/°C 0.5 ppm/mW

Drive

Resolution

Power

Coefficient

0.1 Ω

50 ppm/year 1 W 20 ppm/°C 0.1 ppm/mW

150 Ω

10 ppm/year 0.1 W 1 ppm/°C 0.5 ppm/mW

sembly

LOM-501C Cable Assembly:LOM-506 Cable Assembly:LOM-504

0.01 Ω

50 ppm/year 2 W 20 ppm/°C 0.1 ppm/mW

LOM-530

Calibration Kit for LOM 510-A LOM-506 Kelvin Microprobes Cable Assembly

Accuracy

Pulsed Mode: One cycle ofSW(Switched dc) mode; enabled by shorting

LOM-501C

Kelvin Test Clips Cable Assembly (pair, length 1 meter) (pair, length 1 meter)

Versions

• Jaw-Opening - 3/8" - chips • Fine-point, spring- - large bushings • Jaw opening - 1.75"

199.99 Ω

.1 mA .002 mW 0.5 μW 10 mΩ

LOM-501TF

Test Fixture

Stability

TempCo

199.99 mΩ

.1 A 2.0 mW .50 mW 10 μΩ power supply lines; 25 pin "D" connector.

LOM-501-XL

Extra-Long cable for remote testing (up to 50 m)

LOM-501C-2m

Kelvin Test Clips Cable Assembly (pair, length 2 meters) LOM-506-1 Replacement Microprobes, set of 4

Zero Adjust

Active only in DC (Continuous dc) mode. Accessories Supplied: LOM-501 test clips.

LOM-510A-110

Digital Micro-ohmmeter LOM-501W Kelvin Test Clips Cable Assembly (wide)

LOM-510A-220

Digital Micro-ohmmeter (length 1 meter)

Suitable for

Suitable for:

Cable Options

Extra-Long cables for remote testing -- up to 50 m

Storage Range

0°C to 40°C micro-ohmmeter.

LOM-510A Series

p. 2 of 2

Noise Rejection

80 dB for SW (Switched dc) and Pulsed Mode; 60 Power Requirements: 105-125 V or 210-250 V, 50-60 Hz, 30 W max.

Switched dc Mode

Model LOM-510A/20limits the open circuit

110 Vac operation

LOM-503 Kelvin Test Clips Cable Assembly, E-Z Hooks

220 Vac operation

2 inch jaws pair, (length 1 meter)

Temperature Range

15° to 30°C working standard grade resistors for complete calibration of the

Vitesse de mesure

3 mesures en deux secondes

• Digital output

• Probes for chips and traces

LOM-501C - 1m (39")

• Miniature Tips - circuit board components loaded tips (1.27 mm) - welded and bolted joints • Lead Length - 3.7 m (12')

LOM-501C test clips

LOM-504 Kelvin Test Clips Cable Assembly, Heavy Duty,

LOM-502C - clips only

- inside of connectors - transformers and motors

SW (Switched dc) Mode

Current switched on for 166 ms, then off for Weight: 2.7 kg (6 lb).

• 1 μΩ resolution

• Four measurement modes

low-resistance unknown.

not punctured. The Dry Circuit Mode

• 0.02% basic accuracy

• Auto-zero switched dc mode

LOM-501 U -unterminated cable

- fuses

LOM-501C-2m - 2m (79") • Rugged

- conductor traces - rails and pipes

IET LABS, INC. in the GenRad Tradition

www.ietlabs.com

Range Max Dissipation Measurement Rate

1.5 readings/second.

Wide Opening Kelvin Clips Cable Assem-

Test Fixture for Discrete Components:

534 Main Street, Westbury, NY 11590 TEL

(516) 334-5959 • (800) 899-8438 • FAX: (516) 334-5988

(Full Scale) DC SW Connections to Unknown

4-terminal Kelvin leads with shield.

19.999 mΩ 1 A 20 mW 5.0 mW 1μΩ Outputs

5 BCD digits for value and polarity; Pulsed Mode Control lines;

dB for DC (Continuous dc) mode. Dimensions

22.9 cm W x 5.1 cm H x 27.9 cm D (9" x 2" x 11")

• Connecting to individual binding posts

• Selection and binning

elements. Thermal emf effects are eliminated.

Model LOM-510A Micro-ohmmeter shown with

4-Terminal General Purpose Kelvin Clips Cable As-

4-Terminal Kelvin Microprobes 4-Terminal Heavy Duty Kelvin Clips

1.9999 Ω 10 mA .2 mW .05 mW 100 μΩ Warm up time

1 minute to rated accuracy.

• Connecting to dual binding posts (0.75" apart)

• Radial or axial leads

Model (Switched dc) (Continuous dc) Pulsed Mode Display

4½ digit, 0.5 inch, red LED display.

Suitable for connection in most applications Suitable for

Suitable for:

19.999 Ω 1 mA .02 mW 5 μW 1 mΩ Accuracy vs. Temperature

Stated accuracy applies over an ambient

LOM-510A 0.02% + 2 counts +2 μΩ 0.04% + 2 counts + 2 μΩ 0.02% + 4 counts + 2 μΩ

Display Overrange Indication:Flashes forDC(Continuous dc) andSW

Applications

• Test en production de résitance de contact, résitance de cables, relais
• Test de fusibles et d’éléments chauffants
• Test de résistance pour bobines de moteur
• Test assurance qualité