Limit-Sensing Ohmmeter -
Model 5012-06XP

The Harris IRT Enterprises Limit-Sensing Ohmmeter - Model 5012-06XP is designed for portable production resistance testing in an industria environment. It is a high-resolution, digital ohmmeter that couples laboratory precision with the durability and reliability needed by industry. The use of a four terminal resistance measurement system eliminates the inaccuracies introduced by test lead resistance. When a large number of similar components are to be tested, high and low resistance limits are set using front panel thumbwheels. Indicator lamps light when a component’s resistance is above, below or within test limits. An output relay is triggered to permit the automated rejection of unacceptable components. The Model 5012-06XP makes 100% production testing practical, simple, and economical without giving up accuracy and resolution.

SPECIFICATIONS

OPERATING RANGES:

RANGE 0 - .2 ohms 0 - 2 ohms 0 - 20 ohms 0 - 200 ohms 0 - 2000 ohms 0 - 20000 ohms

RESOLUTION 0.0001 ohm 0.001 ohm 0.01 ohm 0.1 ohm 1.0 ohm 10.0 ohms

TEST CURRENT 100 milliamps 100 milliamps 10 milliamps 1 milliamp 100 microamps 100 microamps

Test voltage for 0 - 2000 ohm ranges: 200 millivolts Full Scale
Test voltage for 20000 ohm range: 2 volts Full Scale

ACCURACY:

±0.05%, ±1 digit at 25°C
±0.001% per °C, 0°C to 50°C

DISPLAY:

3½ digit, 0.5" [12.7mm] LED.

READING RATE:

5 per second.

AUTO ZEROING:

Between display readouts.

POWER REQUIREMENTS:

117VAC ±10%, 50-60Hz, 5 Watts (230VAC optional).

ENCLOSURE:

Rackmount anodized aluminum case 19" [483mm] wide by 14" [356mm] deep by 3.5" [89mm] tall.

Download Model 5012-06XP Specification Sheet

Download Model 5012-06XP Manual

OPTIONS

Temperature Compensation

Temperature changes of a few degrees in a product can produce significant changes in the resistance of the product. Temperature compensation allows for varying product temperature by providing the Model 5012-06XP with the ambient temperature. The tester then compensates for differences between the ambient temperature and the standard measurement temperature. The accuracy of the temperature compensation is within 0.2% of the actual resistance between 0° and 50°C.

Download Temperature Compensation Option Specification Sheet

Computer Interface

The Model 5012-06XP is available with a serial computer interface, RS-232 which can be easily converted to USB. The RS-232 interface is a three-wire link that is a standard, null-modem connection with a baud rate of 9600. Protocol 9600,N,8,1 with no handshaking needed. The RS-232 interface is useful for statistical analysis of production, predictive control and data logging. It is compatible with any computer having a RS-232 port and any terminal program. An RS-232 to USB converter can be obtained from most computer stores at a reasonble price if RS-232 in not available on your computer.

Sample & Hold Option . Available only in 5012-06XR Rack Mount units.

Alarm Connections

Alarm connections are available as special terminal connections for activating audible or other alarms.

Safety Relays

When a resistance tester is used in a system in conjunction with high pot or surge tests, an external safety relay can be provided to lock out the resistance tester circuitry during other testing. This will protect the test equipment from possible high voltage damage.

230VAC Service

The Model 5012-06XP is available with 230VAC 50Hz operation upon request at no extra charge.