Valhalla Scientific 4314KV, Operation Manual

Page: 8 / 32

1
Chapter 1 – General Information
Instrument Description
The Valhalla Scientific Model 4314KV/KVS Digital Igniter Tester is designed to provide extremely safe and
reliable resistance testing of explosive or volatile devices. Some of the proven uses include: fuses, squibs,
igniters, explosive bolts, automobile airbag initiators and many others.
Essentially, a Model 4314KV/KVS is a 4-wire ohmmeter which has been designed to use very low test
currents for its measurement. Additional circuitry proprietary to Valhalla Scientific is used to ensure that
test current levels do not exceed the specified "failsafe current" even in a worst-case component failure
situation. The failsafe feature is tested in every instrument before shipment and the results provided to
the customer on a Certificate of Calibration that accompanies the unit. In addition, to prove that this level
of safety is intact, the
4314KVS is equipped with a constant test current monitoring display and a unique
Fail-Safe test button that simulates a worst case component failure and displays the “real” fail-safe
current, all while the output is isolated from the current source.
The Valhalla Scientific 4314KV/KVS Igniter Tester contains the enhanced inner circuitry as its ultra-safe
4314 Series predecessors, with the addition of Constant Current monitoring, Fail Safe test on the KVS
model, and 7 ranges
(2Ω to 2MΩ)
, all designed in a compact, rugged water resistant Pelican case for
protection in the harshest environments.
Measures Under all Conditions: The 4314KV/KVS are not only the safest resistance testers for explosive
devices, they are also, thanks to its case, impact resistant and water tight. The devices float in water, are
water proof when closed to a depth of 3 feet, and can be operated outside in direct rain.
They comes self-contained with a slim-line AC/DC Battery Charger and measurement test leads ready to
use.
Standard feature of the 4314KV/KVS is a battery monitoring circuit that alerts the user if the batteries
have become or will soon become unusable.
Safety Considerations
The 4314KV/KVS Digital Igniter Testers are a battery operated equipment, for an optimal function of the
Failsafe circuitry DO NOT connect the battery charger while the instrument is in an ON position. Always
disconnect the battery charger before operating the instrument.
Instrument Identification
Valhalla Scientific instruments are identified by a two part serial number. The Serial Tag is located on the
rear or bottom of the instrument. The number is in a form of 66-0000. The first two digits, called the serial
number prefix, indicate the model. It changes only when a change is made to the instrument. The last 4
digits, called the serial number suffix, are unique for each individual unit.
Be sure to include the entire serial number, both prefix and suffix, in any correspondence about your
instrument.
The serial number can also be found on the Main Board, Calibration Tag and Certificate of Calibration.