Auto-Ohm 200 S3
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Auto-Ohm 200 S3

DC Micro-Ohmmeter

Part Number(s)
9051-UC
9051-DG [Dual Ground Option]
Download Links
Auto-Ohm 200 S3 Datasheet (English)
Auto-Ohm 200/DMOM-200 S3/DMOM-600 User's Manual

The Auto-Ohm-200 S3 is Vanguard’s fourth generation, microprocessor-based, true DC micro-ohmmeter. It is designed for testing EHV circuit-breaker contact resistances, bushing contact joints, welding joints, or for any low-resistance measuring application. This high current and very lightweight (16.8 lbs/ 7.6 Kg) micro-ohmmeter is designed to meet the requirement for testing circuit breaker contact resistance.

  • Very lightweight: 16.8 lbs. (7.6 Kg)
  • Measures circuit breaker contact resistance with safety ground on (with the Dual Ground option)
  • Stores test records on-board or on external USB Flash drive
  • 1 to 200A programmable test current

Auto-Ohm 200 S3

Cables

Auto-Ohm 200 S3

Technical Specifications

TYPE Portable Micro-Ohmmeter
PHYSICAL SPECIFICATIONS Dimensions: 17" W x 7" H x 13" D (43.2cm x 17.8cm x 33cm)
Weight: 16.8 lbs (7.6 Kg)
INPUT POWER 100 – 240 Vac, 50/60 Hz
RESISTANCE READING RANGE 10 milliohms at 200A to 5 ohms at 1A
Accuracy:
1A to 4.99A: 1% ±10 micro-ohms
5A to 9.99A: 1% ± 2 micro-ohms
10A to 200A: 1% ± 1 micro-ohm
TEST CURRENT RANGE 1 Ampere to 200 Amperes (selectable in 1A steps);
Thermally protected DC power supply.
DISPLAY Back-lit LCD (128 x 64 pixels), viewable in direct sunlight and low light levels
KEYPAD Rugged, 44-key "QWERTY" membrane keypad
INTERNAL TEST RECORD STORAGE 128 test records. Each record can contain up to 64 readings.
EXTERNAL TEST RECORD STORAGE Up to 999 test records on external USB Flash drive
COMPUTER INTERFACE RS-232C
PC SOFTWARE Windows XP/Vista/7 Analysis Software (included with purchase)
SAFETY ENVIRONMENT Operating: -10oC to 50oC (15oF to +122oF)
Storage: (-30oC to 70oC (-22oF to +158oF)
HUMIDITY (MAX) 90% RH @ 40oC (104oF) non-condensing
ALTITUDE (MAX) 2000m (6562 ft) to full safety specifications
CABLES
30 ft (9.1 m), #1 AWG test cables, power cord, ground cable
OPTIONS
Shipping case, 15 ft test cables, C-Clamp set, Hand Spike Set
WARRANTY
One year on parts and labor
Specifications are valid at nominal voltage and ambient temperature of +25oC (+77oF).