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The
AMPTEC 601ES Explosive Safety Digital Multimeter replaces the Dupont
101 Blaster meter
Designed originally
for U.S.
Military/Defense
system programs, (i.e. Air Launched Cruise
Missile - Boeing Defense Systems ) to replace the aging and
obsolete Dupont 101 Blaster meter. The AMPTEC 601ES
Explosive Safety DMM features: 1) a ruggedized,
water-resistant main front
panel, 2)
self-contained DC milliammeter (to independently verify it's USAF
Munition Safety Board Approved failsafe "ohms" current source level,
3) low
level fail-safe voltage (50 mV) signal source and 4) fail-safe 5 mA
signal sources (to
independently verify unit's DMM stray voltage and stray current
measurement function) -
The 50 mV and 5 mV signal sources are completely independent of the
meters output terminals for safety
reasons. 5) 4
wire Kelvin resistance or 2 wire "ohms" modes at the flip of a switch
(silicone rubber boot protected), 6) standard
DMM style gold plated 5-way binding posts ( accepts banana jacks, spade
lugs, bare wires and other test lead connections, 7) wide viewing angle
(tilted) ergonomic display -
readable in direct sunlight, 8) separate
battery compartment allows user to replace the unit's 4 ea. "AA"
batteries without breaking the calibration seal, a shielded Faraday
cage design for EMP , ESD protection, noise immunity, and more . 9)
Only the AMPTEC 601ES Explosive Safety DMM has an independent on-board
safety self check capability. Here is a Powerpointtm
presentation of a
complete AMPTEC 601ES DMM Safety Self-test or Checkout Procedure .
It is an independent
on-board safety self
check for every function (stray voltage, stray current measurement and
resistance) and every range on the DMM using the units' built-in
milli-ammeter.
The AMPTEC RESEARCH
601ES Explosive
Safety DMM is designed for use in harsh environments (down to -0
°C) on the go “mobile” take it anywhere
use, or for
general purpose test bench use on ordnance. The unit's resistance
measurement circuitry ( fail-safe current source) uses AMPTEC's proven
USAF Munition Safety Board Approved Igniter Tester circuitry
( AMPTEC 620A-4 Fail-Safe Igniter Tester) military programs.

Measure Stray Voltages
from 600V to 0.1 mV
-
Integrity
of Measurement : Built-in Self-Test
The AMPTEC 601ES
Explosive Safety DMM can safely measure Stray
Voltage(s) at virtually all levels.
It has a 600 VDC/RMS AC range or 200
VRMS, 20 VRMS and 2.0 VRMS (AC/DC)
ranges with 4 1/2 digit resolution down to 0.1 mV
DC/RMS AC.
Stray AC/DC current can also be measured up to the 2.0 ampere DC/RMS AC
level. The AMPTEC 601ES Safety DMM has a 5.0 ampere fast blow fuse which protects the
AMPTEC 601ES Safety DMM from any overcurrent damage.
USAF SPACE
WING (VANDENBERG AFB) LAUNCH/RANGE SAFETY APPROVED

The USAF -30th
SPACE WING (AFSPC)
- Launch
Vehicle Safety Group (Vandenburg AFB) has approved the AMPTEC
601ES Safety DMM for
meeting EWR 127-1 Range
Safety Requirements
for checking Stray Voltage/Energy, Explosive BridgeWire (EBW)/Igniter
Circuits, EED circuit checks and related testing. The AMPTEC 601ES DMM is
approved for use "with processing and operations for the Orbital Boost
Vehicle and Exoatmospheric Kill Vehicle (EKV) as support
equipment".

The National
Aeronautics and Space Administration (NASA) Goddard Space Flight Center
Safety Office has now listed the AMPTEC 601ES Explosive Safety
Digital Multimeter as equipment they have approved for use on the
launch range. NASA Range Safety Office personal inspected and state
in the NASA Range
Safety Approved Equipment for Range Use Letter the
AMPTEC 601ES Explosive Safety DMM complies with the requirements in the
NASA WFF Range Safety manual (RSM) 2002A. A
copy of the NASA Range Safety
Office "Range Equipment Approval" of the AMPTEC 601ES Safety DMM is
available for your review.

The AMPTEC 601ES Safety DMM is also Eastern
and Western Missile Range (EWR) paragraph 127-1 Drop Test Compliant.
A fully calibrated new AMPTEC 601ES Safety DMM was dropped (on all four bottom corners) onto a concrete floor from a height of 27".
After each drop the meter was powered up successfully and then a
functional check was performed (for each function). In
addition the meter's current source (resistance measurement) was
verified to be less than 5 mA and the meters signal sources were tested
and found to be "OK". After the last drop, the meter was then
completely tested/verified and found to be fully "In
Specification" with no signs of any damage. A copy of the
AMPTEC 601ES Safety DMM Drop Test Report is available for your review
- contact the sales department at AMPTEC RESEARCH
for a copy or password access to the tech library.

Whenever the AMPTEC
601ES Safety DMM user
wants to check stray voltage or stray current measurement
functionality, self test signal sourcing (small level voltage 50 mV and
low safe level current 5mA current source) is built-in. The low
safe level Signal sourcing is completely isolated
and separate from the unit's output terminals for safety reasons. The
built-in 50 mV signal source self-test feature
can internally provide 50 mV to the DMM electronics (in voltage mode)
to check/display basic stray voltage measurement functionality. In a
similar fashion, a built-in 5 mA current source may be apply to cross
check the DMM's stray current measurement functionality (when in AC/DC
Current mode) may also be selected.
 
Incredibly Safer
than a commercial DMM
Commercial
Multifunction DMM’s have
many modes (i.e. DC Voltage, AC Voltage, DC current, AC current,
frequency, shift keys, Capacitance, some even with AC powered line
cords and more.) that can accidentally
fire igniter circuit. Just because a DMM may be battery
powered, doesn't mean its "failsafe". A single "AA"
battery
such as the Duracell MN1500 Coppertoptm
which has 1500 mAHr capacity (1.5Ampere Hours). This level is
enough current to be extremely hazardous if its accidentally
connected (i.e. component failure ~short) to a squib or EED (a lot of ignitors/squibs have a
1.0 ampere ALL FIRE current level). DMMs were not designed
to
fail in a safe mode.
Unlike a commercial
DMM, you can see for yourself that the unit's
resistance function is only sourcing < 5 mA ( a very safe level)
into the unit's independent Simpson analog milliammeter just
before preforming an ordnance test (0 to 10
mA ). More important,
should there ever be a component failure in the AMPTEC 601ES Safety
DMM, it has the life
saving advantage of failing safe (less than 8 mA worst case component
failure). The AMPTEC 601ES Safety DMM uses the USAF
Munition Safety Board
approved low level failsafe current source circuitry for all
resistance measurement
modes.The AMPTEC
601ES Explosive Safety DMM has many safety
features built-in to prevent virtually any hazardous failure mode.
All instruments
eventually break or fail
(need repair) sooner or later but
are they designed to be failsafe
like the AMPTEC 601ES DMM?
Essentially, unlike a
commercial DMM, if
the AMPTEC 601ES DMM has an electrical fault it offers the
life saving advantage of being failsafe. Commercial DMMs are not
designed or Safety Board Approved with the USAF Munition
Safety Board Approved fail-safe current source circuitry
found in the 601ES DMM. The maximum output current with any single
component failure is 8mA (well within the
acceptable safety margin established by virtually all Explosive Safety
Approval Boards).
Virtually all commercial DMMs have lots of things that if they failed
worst case - make them extremely hazardous to use on
electrically fired explosive ignitiators and related ordnance.
Commercial;DMMs also lack an insulating (oversprayed)
polyurethane conformal coating on all the main
PCB after the components are placed. The PCB conformal
coating;helps prevent an accidental loose
wire,washer, or screw from conducting in a hazardous manner.
For resistance
measurement of missile warhead squibs,rocket motor squibs only
AMPTEC's failsafe current source (same as in all AMPTEC 620 and 630
series
Igniter Testers)safety instrumentation is used by the USAF, US NAVY
and US Army. Most DMMs also aren't optimized for squib
resistance measurements, most squibs are around 1.0 Ohm and the AMPTEC
601ES
Explosive Digital Multimeter offers a 2.0 Ohm full scale
range.For
a data sheet of all the accessories, test leads, probes and
options that are compatible with the AMPTEC 601ES DMM, 620A-4,
620BH, 620ES, 620GD, 620RK etc select here.
Commercial
DMMs lack an independent
on-board Simpson milliammeter (0 to 10 mA fullscale) the AMPTEC 601ES
DDM has. It allows independent verification to the
unit's output test current level checks just prior to making
an ignitor/ordnance test. It is the ampere level that sets off squibs
and EEDS. A 250 mA
maximum "NO FIRE" current is common with squibs, above
that level any thing can happen. The AMPTEC 601ES DMM also
has built-in signal sources to also check the stray
voltage and stray current;measurement;
capability. It's called "measurement
integrity" and "explosive safety assurance" and the AMPTEC 601ES
Explosive Safety DMM was designed from the ground floor up
to have both ("measurement
integrity" and "explosive safety assurance" ).
The AMPTEC 601ES DMM
internal packaging and impact resistant case is constructed to a water
tight standard. The polypropylene case is water
proof when closed (and purge valve is shut) to a depth of 3 feet.
The AMPTEC 601ES Safety DMM also floats in water and can be operated
outside in direct rain, as it has silicon boot seals over all switches.
The waterproof front panel covers a unibody aluminum front plate
mounted on a water-resistant compressed o-ring in bezel construction.
Internally the unit features an all metal Faraday Cage wired
to
the front panel chassis ground terminal for added noise immunity.
Polyurethane
Epoxy Conformal Coated Circuit Board and More ...
A common question we
get from safety
committee engineers is "What sort of electrical and
mechanical
measures are taken with the AMPTEC 601ES Safety DMM to
prevent an internal loose wire, metal screw, or washer inside
from floating around and shorting the battery output to the terminal
output posts?". The entire PCB (except for the calibration trim pots)
is protected with a conformal coating ( non-conductive polyurethane
epoxy ) to make it extremely difficult to get an accidental
conductive pathway. The AMPTEC 601ES Explosive Safety DMM
fundamentally uses the USAF Non-Nuclear Safety Board approved
AMPTEC 620A-4 Igniter Tester Failsafe current source circuitry.
The unit's 2.0 Ohm range which has also been approved by the
US
Dept. of Energy (High Explosive Safety Committee) in the form of the
AMPTEC 630ES and AMPTEC 640SL as well as the intrinsically safer AMPTEC
620UK Safety Ohmmeter. The ultimate electrical safety
analysis
for failsafe current relies on multiple backup components
using
Ohm's Law for determining Imax based upon a Vmax (~ 4.8 VDC battery
value) divided by the equivalent circuit current limiting resistance
(R-limit) for the particular version being considered. The
AMPTEC
601ES DMM circuit schematics are available upon request for reviewing a
version's maximum failsafe current level.

Integrity of Measurement and an
instrument's accuracy is important to us and should be
important to
you. To
provide proof, in writing, that an instrument is truly accurate,
many
instrument companies charge extra for an instrument's
calibration certificate. Not at AMPTEC RESEARCH.
The AMPTEC 620A-4
Igniter Tester comes with a U.S. N.I.S.T. traceable calibration
Certificate, good for 1 year, at "No Extra Charge". |
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The
AMPTEC 601ES Explosive Safety
DMM is CE
marked, and includes a U.S
N.I.S.T Calibration Certificate (see above) and even a Certificate of Compliance (available
upon request)- No Extra Charge.
Kelvin
Clips , Probes and Test Lead
Accessories
For
a data sheet of all the accessories, test leads, probes and
options that are compatible with the AMPTEC 601ES DMM, 620A-4,
620BH, 620ES, 620GD, 620RK etc select here.
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Option
"300" Kelvin Clip Test Leads
- Gold Plated Four Terminal Kelvin Clip Lead Set open to ½"
for connection to wires, lugs, etc.
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Option "300" Kelvin Clip Test Leads
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Option
"401" Single Pointed Handheld Probe Set
- Ideal for probing into recessed squib wire sockets, and onto larger
metal surfaces (flat or round) such as flares, rounds and shells, that
do not easily accept test lead clip attachment.
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Option "401" Test Probe
Lead Set
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| Specs: |
| Resistance
Accuracy: |
(180 days 25
ºC ± 10
ºC) ± 0.02% of reading ± 0.05% of range
for the 2
ohm range, ± 0.02% of reading and ± 0.02% of
range for 20
ohm range through 200Kohm range.
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| Failsafe Current: |
<
8mA - 2 ohm and 20 ohm ranges, < 1.5mA for 200 ohm range,
<15uA for the 200Kohm range. |
| Display: |
4½
digits (19999) High Viz LCD
- 20,000 counts. Display is visible in direct sunlight, and
backlit selectable in dim light. The
LCD is externally protected
with ballistic LEXANtm.
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| Terminal
Configuration: |
Switch
selectable 2 Wire or Four-wire Kelvin |
| Resistance
Ranges |
2.0
Ohm, 20.0 Ohm, 200.0 Ohm, 2.0 Kohm, 20 KOhm |
| Overload Indication: |
Display
Flashes |
| Ohms Measurement: |
4 Wire Kelvin
with 5 Way Binding Posts on the front panel
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AC DC Voltage
Measurement
(Volts RMS ranges - accuracy) |
600 VRMS, 200VRM,20VRMS,2V RMS with
1% accuracy of 600 VRMS range and 0.5% accuracy for all other ranges.
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AC DC Current
Measurement
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2.0 ampere AC/DC RMS with 0.5% accuracy |
| Operating
Temperature Range |
0 ºC to
+50 ºC |
| Display Update Rate |
Approximately
3 readings per second
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| Power: |
uses
4 ea "AA" 1.5V Alkaline batteries or equivalent .
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| Size: |
235mm/9" D x
254mm/10" W x 76mm/3" H |
| Weight |
7 lbs NET /
9 lbs shipping |
| Markings/Certifications |
CE
Marked,
includes U.S. N.I.S.T. Calibration Certificate as standard, a Mfg.
Certificate of Compliance is available upon request |
| Additional
Notes/Options: |
Description |
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Compatible with most
DMM test leads - The unit's binding posts accept banana
plugs, spade lugs, even bare wires.
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The AMPTEC
601ES DMM includes a set of the OP300
gold plated dual banana to 4-Wire Kelvin Clip test lead set (48" long).
or OP290
Alligator Clip Test Leads. Any of the AMPTEC 620A series test leads
such as option "401" Kelvin
mini-probes are also compatible with the AMPTEC 601ES Safety DMM.
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USA
Delivery Included with purchase, International FEDEX
is also available
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No
Charge for Shipping
via FED EX if you provide us with your FED EX Account # with your order. For International
customers, please contact the sales department at AMPTEC RESEARCH CORP.
for a firm delivery price quotation which includes FED EX
International delivery "door to door"
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