Burster RESISTOMAT 2408, Manual, Page: 23 / 90

Model 2408
RESISTOMAT
®
Page 23
Section 1: Introduction
WARNING
High voltage is applied to the measurement terminals of the 2408 anytime the CAUTION
HIGH VOLTAGE LED is ON. While the current from the instrument is limited to a value
that is not dangerous under most conditions, the energy stored in a capacitor connected
to the terminals may be lethal. Always make sure the CAUTION HIGH VOLTAGE LED is
OFF when connecting or disconnecting the unknown.
1.1 Unpacking and Inspection
Inspect the shipping carton before opening. If the carton is damaged, contact the carrier
agent immediately. Inspect the 2408 instrument for any damage. If the instrument appears
damaged or fails to meet specifications notify burster (refer to instruction manual front
cover). Retain the shipping carton and packing materials for future use such as returning
for recalibration or service.
1.2 Product Overview
The 2408 Megohmmeter is a general purpose high voltage instrument for resistance
measurements on insulating materials and components. It is designed for easy, accurate
and direct readings of high resistance typically found in synthetic resins, porcelains,
insulating oils, plastics and other similar materials. It is also used for measurements on
capacitors, transformers, switches, cables and connectors. The 2408 provides a direct
readout of resistance from 1000
Ω
to 100 T
Ω
with fully automatic ranging. The voltage
applied to the unknown is programmable from 1 V to 1000 V.
The 2408 includes a high resolution graphics display and keypad for ease of use. The test
cycle is fully automatic with programmable charge, dwell, measure and discharge times.
These times, along with other test conditions can be stored in instrument memory and
recalled for later use. A pass/fail indicator provides the operator with a visual indication
based on a preset resistance limit. The unit also contains automatic zeroing at the test
leads as well as built-in self-test routines. Safety features include current limiting to less
than 2 mA and a front panel indication when voltage is applied to the test terminals, thus
permitting connections to be made safely.
The 2408 comes standard with I/O Port (handler) and RS232 interface. An IEEE-488.2
interface is optional for communication with other instrumentation and remote control
operation. A USB connection is also available for storing test conditions and results on a
flash drive. There is a direct reading current measurement mode from 1 mA to 1 pA.
The unit is available with front or rear panel input connections with guard and ground
terminals to permit measurements of grounded or ungrounded devices.