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Igniter Circuit Testers Igniter Circuit Testers






Space Electronics LLC 81 Fuller Way Berlin, CT 06037 USA
Phone: +1 860 829 0001 Fax: +1 860 829 0005 Email:
sales@space-electronics.com

Website :
www.space-electronics.com





Description

Igniter
Circuit
Testers
are
ohmmeters that measure the
resistance of electro-explosive
circuits such as rocket igniters,
explosive bolts, squibs, and
blasting caps, using a test
current which is as much as
1000
times
less
than
a
conventional
precision
low
resistance ohmmeter. These
instruments
have
been
approved by the US Navy for
measurement of munitions and
rocket motor igniters.

Fail-Safe Concept

Since excessive test current
could cause bodily injury or
death, protection for all modes
of failure or operator error must
be built into the tester. In our
instruments,
a
sealed,
tamperproof, fail-safe module
guarantees that the test current
will be less than 10 mA even
under worst case conditions of
simultaneous failure of multiple
circuit elements.

To
prevent
anyone
from
bypassing the critical fail-safe
circuitry, it is sealed in a potted
module attached directly to the
output connector. This module
will continue to limit test current
even
if
the
instrument
is
dropped on a concrete surface
from a height of 100 ft.

More Safety Features

The
AC
charger
must
be
unplugged in order to connect
the
test
leads,
making
it
impossible for a test to be run
with the AC still connected.

We use a special re-chargeable
nickel metal hydride battery
pack which is totally sealed in a
thick plastic case to guard
against leakage and has an
output connector which does not
match any off-the-shelf battery
of higher voltage. A fuse inside
the case protects the instrument
in the event of a short circuit.

Ease of Operation

Our instruments give a direct
reading with no bridge to
balance. The 4-wire test leads,
which automatically compensate
for lead resistance, are attached
to the igniter circuit and the
appropriate range button is
depressed. The digital LCD
readout
then
displays
resistance.
A
milliampmeter
and
three
built-in
precision
resistors permit verification of
test current and accuracy.

Portability

These testers are housed in a
small military type case with a
carrying handle and space for
storage of test leads.


Technical Specifications

Models:
101-5HJ-NAV: Military approved. This is our basic tester
101-5HJ-NAVR: Rack mount version of our basic tester

Range (Ohm)
Resolution (Ohm)
Accuracy (Ohm)
19.999
0.001
0.01
199.99
0.01
0.05
1999.9
0.1
0.5
199.99K
0.01K
1.0K
Alternate ranges are available. Additional options and more versions of our testers are available.
Please contact us for more information.