AMPTEC 630ES Failsafe Ohmmeter/Igniter Tester

AMPTEC 630ESEXPLOSIVE SAFETY IGNITER TESTER

INTRODUCTION, CHECKOUT AND OVERVIEW

AMPTEC 630ES Failsafe Ohmmeter/Igniter Tester

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AMPTEC 630ES EXPLOSIVE SAFETY IGNITER TESTER

INTRODUCTION AND OVERVIEW

RESEARCHAMPTEC

I9999-

-AC/DC Battery ChargerSTORAGE AREA

630ES EXPLOSIVE SAFETYIGNITER TESTER

190K OHM

Introduction AMPTEC 630ES

The AMPTEC 630ES Explosive Safety Igniter Tester was derived from the model AMPTEC 620A-4 Igniter Tester (The USAF Squib Meter"). The AMPTEC 630ES Explosive Safety Igniter Tester's features were originally developed for the United States Depart. of Energy at Los Alamos National Laboratories. It is used to check high explosives and related EEDs (electro-explosive devices) circa 1999. Its has numerous safe operation features and Safety Board Approvals (contact AMPTEC RESARCH Sales Dept.) that have reviewed the unit’s failsafe circuitry and deemed it as the “HE meter” (high explosive meter) for use by Los Alamos National Laboratories, NASA and US Air Force Range Safety .

J1

630ES Key Switch

A

C

63

0E

S M

ain

Pane

lM

ount

Con

nect

or

Measure

Safe (remove key)

D

B

I High line of 630ES

V High

V Low

I Low

(dwg. 630ES-070 I Source)

line of 630ES

line of 630ES

line of 630ES

(

(

(

dwg. 630ES-070 DVM1)

dwg. 630ES-070 DVM1)

dwg. 630ES-070 I Source)

A

C

D

B

I n the locked “SAFE” mode all test lead inputs are shorted together and completely disconnected f rom all 630ES electronics. I n “Measure” mode the J 1 lines - is “ON” f or 630ES , J 1 is “ON” for 630ES , J 1 is “On” for 630ES V , and J 1 I is “ON” for 630ES I

II V V V

high

high high high lowlow low low

(saf e mode shown below)

User Note: When key is removed from the AMPTEC 630ES, the unit's circuitry is not connected to any test lead connection that may be going off to some "squib" under test. If the user puts the key in their pocket, they know that nothing the 630ES does can electrically effect the "squib" wires that they may be going to

connect to. Upon return to the 630ES, only when the key is inserted and the keyswitch is in "measure mode" is the failsafe ohmmeter Igniter Tester connected to the test leads (if plugged

into the "Connections" port.

AMPTEC 630ES Explosive Safety Igniter Tester –Startup Check Out Procedure

The first item to examine is to check the calibration sticker's due date for the AMPTEC 630ES Igniter Tester. If the due date is still valid and not expired, it is ready to begin the safety check procedure. If the calibration due date is expired then contact your calibration laboratory or AMPTEC RESEARCH. A tamper resistant calibration sticker is usually located around the perimeter screw(s) area to the AMPTEC 630ES Igniter Tester DMM top plate. The sticker will most likely be covering one of unit's the calibration access screws.

630ES630ES- 504

Getting started – If the AMPTEC 630ES is new to you, the lid of the 630ES contains a laminated instruction card that diagrams all of the AMPTEC 630ES switches, connections, milliammeter use and more . . (see near the last slide of this presentation for the 630ES User Reference Instruction Card diagram.

Step 2: Procedure for turning "ON" the AMPTEC 630ES Igniter Tester :Using the unit's main operating power switch located in the lower left portion of the front panel, flip the toggle bat of the power switch (grey silicone rubber boot protected) into the “UP” or “ON” position .

After the AMPTEC 630ES is powered up you should see the red LED display come on. A low battery level is indicated with a negative or minus sign in the

front of the unit's L.E.D display. Adequate battery level – the minus sign may initially come on for a couple of seconds but should go out and not be

continuously lit. In order to charge the 630ES, the meter must be turned off and the battery charger (AC powered) plugged into the unit’s “CONNECTIONS” port.

Do not operate the 630ES with a “Low Battery” indication as the readings can be inaccurate.

I9999

Low battery Indicator

630ES Display Hood/Teepee

The 2.0 ohm range on the AMPTEC 630ES Igniter Tester should be checked out first. After pressing the 2 ohm range (momentary) switch, the range indicator LED should come on.

This indicates the 2 ohm range is selected .

2.0 Ohm Range - Checkout / Verify Procedure There is positive (+) and negative (-) polarity

associated with the AMPTEC 630ES Test Leads. AMPTEC 630ES Test Lead polarity doesn’t effect the resistance measurement, but it (polarity) does effect the use of the milliammeter. The banana jack lead with the red indicator is Voltage and Current HIGH, while the banana jack with the black indicator is Voltage and Current Low. When using the built-in analog DC milliammeter (red jack on the meter +, and black jack on the common black jack) proper test lead polarity connection must be maintained to facilitate proper operation of the milliammeter. In addition the 630ES key must be in the keyswitch and the switch in “measure” mode in order to measure anything with the 630ES Test Leads. The milliammeter should indicate the units test current level is less than 5 mA, which is viewed as just right of the the 12 O'clock or mid scale needle position.

5 mA

MILLIAMPERES2

4 68

10

190K OHM

1 OHM

Red / High banana lead

Black / Low banana lead

To "CONNECTIONS" port}

The key must be in and switched to the measure position in order to make any measurement. In the "SAFE" mode the connection port leads are shorted (No output for Safety purposes)

MILLIAMPERES2

4 68

10

190K OHM

1 OHM

Red / High banana lead

Black / Low banana lead

To "CONNECTIONS" port

}0.100 ohm resistor

digital reading(around .100 ohms)

2.0 Ohm Range Check

1. Next check the 2 ohm range by plugging in the red banana jack lead into the 0.100 (1/10th) Ohm reference resistor. Note: this resistoris only approx. 0.100 ohms . The 630ES readingwill be approx. 0.10 ohms (i.e .0995 ohms or 0.1011 ohms.

The purpose of having a reference resistor is only to verify the 630ES is measuring in the proper magnitude or level of resistance.

The unit's reference resistors are not be considered as a calibration standard, butonly as a simple measurement verification or checkout tool. If the 0.100 ohm check looks OK, try pluggingthe red banana jack lead into the 1.0 ohm referenceresistor. Again the 630ES should display a readingof approx. 1.0 ohm (i.e .9985 ohms or 1.0012 ohms etc.)