redirecting to Microhmmeters in 4s.
The DMOM-100 S2 is Amperis third-generation, microprocessor-based, true-DC micro-ohmmeter. It is designed for testing EHV circuit-breaker contact resistances, bushing contact joints, or for any low-resistance measuring application. The DMOM-100 S2 can accurately measure resistances ranging from 1 micro-ohm to 300 milli-ohms. It can output a test current from 10 Amperes to 100 Amperes. The DMOM-100 S2 applies a true-DC current from 10A to 100A to the resistance load to be tested. Any test current setting can be selected by using the unit's alpha-numeric keypad. The DMOM-100 S2 controls the test current's rise and fall rates by using a switching DC power supply and a current regulator circuit. An Auto Test Mode is also available and can be initiated simply by applying the sensor cables' leads across the two points of interest. This feature is very convenient when measuring a sequence of several resistance values in a breaker contact.
The DMOM-100 S2 features a back-lit LCD screen (20 characters by 4 lines) that is viewable in both bright sunlight and low-light levels. The built-in 2.5-inch wide thermal printer can print test reports. A rugged, alpha-numeric, membrane keypad is used to control the unit.
The DMOM-100 S2 can store up to 63 records (of 96 readings) in Flash EEPROM. Test reports can be recalled and printed on the built-in thermal printer, or they can be transferred to a PC via the unit's built-in RS-232C interface port. The RS-232C port can also be used for diagnostic testing. A Windows® XP/Vista-based software application is also provided with each unit and can be used to transfer test records to a PC. Test records can also be reviewed, printed or exported in text or Microsoft® Excel format via the software application.
The DMOM-100 S2 is furnished with two 30-foot test cables. Fifteen-foot test cables are also available as an option. Both cables are terminated with quick disconnect clips. Heavy-duty, welding-type, C-clamps are available as an optional accessory. These can be used to connect the test cable leads to a wide variety of bushing sizes, bus-bars and other conductors requiring low-resistance test contacts.