QuadTech offers a choice of megohmmeters to fit many high-resistance measurement needs. Although these two instruments are similar in appearance and accuracy, their operating ranges differ to match differing needs in the laboratory and production area.

The 1863 Megohmmeter

This is the choice for production and inspection. This unit measures resistance at any of the five common test voltages up to 500V, has fewer controls, and is the lower priced model. It is, therefore, the best selection when several test stations are to be equipped, when the operators are inexperienced, or when specifications call for standard insulation-testing voltages. The 1864 Megohmmeter

This is the choice for laboratory investigations. It is the more flexible of the two units. Test voltage can be set from 10 to 109V in 1-volt steps and from 100 to 1090V in 10-volt steps. Thus, the 1864 can be set to any common, or uncommon, test voltage for ceramic, mica or paper capacitors, or other devices. The reverse resistance of rectifiers can be readily measured; the low test voltages available are especially useful in measuring solid-state diodes. An additional range permits measurements up to 2 x 1014ohms (200TΩ).

Both instruments are easy to use with direct-reading meter indication and lighted range switch that shows the multiplier for each range and voltage. The maximum current possible at the terminals is limited to a safe 5mA and a panel light near the terminals warns when voltage is present. Stable power supplies and feedback voltmeter circuit minimize drift and time-wasting adjustments. Guard and ground terminals permit measurement of grounded or ungrounded two- or three-terminal resistors. The instruments are supplied in a convenient, portable Flip-Tilt case that is a stand for the meter in use and protects it in transit and storage.

Accessories:

The following accessories come standard with the unit:

• User Manual

• Calibration Certificate