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REO BM175-1OST Sequentional Blasting Machine+Slave, Tester, Plug

REO Blasting Machine
DLT #: BM1515

REO BM175-10ST Sequential Blasting Machine w/Slave, Tester, and Load Plug

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The BM175-10ST Sequential Blasting Machine, Slave, Circuit Tester, and Load Plug are available for sale individually or as a complete package.

BM175-10ST Master Sequential Blasting Machine............$2,500.00 

BM175-10 Slave Master..............................................$2,200.00
AD5 Load Plug..........................................................$50.00
CT175-10B Circuit Tester............................................$375.00
Complete Package (Master, Slave, Load Plug, Tester).......$4,500.00
 
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REO BM175-1OST Sequential Blasting Machine permits firing larger blasts with better fragmentation and less vibration while meeting the most stringent new blasting regulations. In many cases, it will allow the blaster to continue full production blasting which otherwise would be drastically curtailed if a regular single circuit machine were employed.

Available for the low price of only $2,500 (+ freight)

The BM175-1OST is a sold-state capacitor-discharge blasting machine with ten circuits that can be set to fire one after the other sequentially at pre-selected time intervals from 5 to 99 MS in increments of 1 MS. By tying the blasting machine to multiple rows of delay electric blasting caps, an operator can custom-design his blasting program to meet any requirement.


BM275-1OST is particularly useful in locations where blasting laws limit charge weight by eight MS or more between detonations. By firing sequentially, powder loads and number of holes in each shot can be increased significantly. Savings in labor and machinery downtime and are improved.


Specifications
Model
BM175-1OST
No. of Blasting Circuits*
10
Individual Circuit Rating Volts/Energy
450 100 MFD capacitance/ 10 joules
Circuit Capacity
82 caps**
175 ohms/circuit
Subgke series
circuit only
Nominal Capacitance
100 MFD
Nominal Voltage
450 VDC
Internal Resistance
10.7 ohns
Nominal Energy
10.1 joules
Maximum Load Resistance
175 ohms***
Weight (Shipping)
19.8 lbs. (9kg)
[22 lbs (10kg)]
Size
6-3/4 x 12-1/2 x 11-3/4 in.
(17.1 x 31.7 x 29.8 cm)
Power Source Alkaline Batteries
Ten 1.5V "D" Cells Eveready E95 or equal
* A receptacle is provided to accommodate an extension cable and TB12 or TB15 Terminal Board.
** 12 ohm max. lead line and 2 ohm E.B. caps wired in a single series circuit, 820 caps total machine capacity, based on U.S. standard cap rating of 20 mj./ohm delivered in 5 MS.
***  Assuming 0.02 joules/ohm delivered in 6 milliseconds, Singles series circuit only.  series-parallel circuits are not permitted.

Features
  • Permits initializing larger blasts while meeting stringent blasting regulations.
  • Helps control vibration and noise.
  • Improves fragmentation through accurate or improved delay blasting.
  • Choice of any MS interval from 5 MS to 199 MS in 1 MS increments.
  • Master BM175-1OST permits adding up to three 10-circuit BM175-10 slave units.
  • Reliable. BM175-1OST will not fire or discharge until fully charged to design voltage.
  • Safety interlock. "Charge" and "fire" switches must both be depressed to fire charge. Blasting machine is rendered inactive when switches are released.
  • Sturdy space age construction for extended service life.
  • Stainless steel case for extended service life.
  • Environmentally sealed to operate in most weather conditions.
  • Solid state circuitry assures excellent reliability and service life.
  • Heavy-duty, long life, Alkaline batteries provide efficient and dependable power.
  • Fast battery change. Quick change readily available standard Alkaline "D" cell batteries. No special tools required.
  • Temperature compensated circuits facilitate cold weather operation without pre-warm-up time.
Operation

Use of this equipment requires training in sequential blasting techniques. Contact your powder company representative for training information. This equipment must be operated in accordance with U.S. Federal Health and Safety Standards, State Laws, rules, and other applicable statutory provisions. Properly trained and skilled personnel must determine suitability and safety factors of each blast. We recommend devices such as the REO BT300-10 Blasting Machine Tester be used to determine the electrical capacity of the blasting machine prior to each blast. The master cable or extension cable shall not be connected to the blasting machine until the shot wiring has been verified by approved testers, the shot is ready to be fired, and area safety is assured.

After the cable has been plugged into the blasting machine, depress the "Charge" switch. When the "Ready to Fire" indicators lights (10 to 30 seconds), depress the "Fire" switch while continuing to depress the "Charge" switch.
Unless the "Charge" and "Fire" switches are operated together, the machine will not fire the blast. The "Cap Circuit" indicators, when lit, indicate the probability that a circuit fired. The machine will stop firing at an open circuit.


CAUTION: With this machine as with all blasting equipment, standard safety rules should be followed which include the following: keep the blasting area clear of unauthorized personnel, keep body and hands away from conductors, and use only approved test equipment.


Battery Life

The "Ready to Fire" light is a solid state, light-emitting diode (LED). It requires very little power to operate and is highly durable. It is bright enough to observe in daylight conditions.

 A lighted "Ready to Fire" confirms that the battery power was sufficient to charge the machine capacitors to the design voltage and the safety circuits have been released.

 
The amount of time it takes for the "Ready to Fire" indicator light to glow reflects remaining battery life. After months of firing cycles, a longer charge time with be required. However, regardless of battery condition, the full design voltage is present and the units safety circuits are released when the "Ready to Fire" indicator is illuminated.

Safety Features
  1. Can not be fired until design voltage is verified and safety circuit is released.
  2. Rugged stainless steel case is sealed against moisture and dust.
  3. Twin padlock latches on hinged cover are provided as a means to increase security protection.
  4. Capacitors are shunted until "Charge" switch is depressed.
  5. All cap circuits are shunted until "Fire" switch is depressed.
  6. Master plug receptacle is shock-resistant and is located on control panel and is protected by the stainless steel case cover.
  7. There are no exposed terminals.
AD5 Load Plug


The AD5 Load Plug is used to test blasting machines. The load plug contains 10 resistors, each equal to the maximum load resistance of the blasting machine. Shipping Weight: 1 lb. (0.5 kg)

CT175-10B Circuit Tester
Model:  CT175-10B
Serial:  3145
Circuits:  10

    The function of the CT175-10B Circuit Tester is to aid checking for errors and broken wires in the multiple blast circuits.  The CT175-10B Circuit Tester is to be used with blasts to be detonated with the BM175-10ST Blasting Machine.  The circuit tester is operated in the two following modes.
  1. The circuit tester provides the operator with a visual go/no-go indication that the E.B. cap circuit loop resistance is less than 175 ohms.
  2. The circuit tester provides easy connection of an approved blasting galvanometer to the E.B. cap circuits for precise measurement of E.B. cap circuit resistance.
    The E.B. cap circuit to be tested is selected by the CAP CIRCUIT rotary switch on the circuit tester.

WARNING:  The CT175-10B Circuit Tester by itself will no indicate a short circuit in the cable, terminal board, or E.B. cap circuits.  On a short circuit the CIRCUITS OK indicator will light as it does with any circuit resistance less than 175 ohms.  To determine a short circuit and for precise measurement of E.B. cap circuit resistance, use an approved blasting galvanometer connected to the METER jacks next to the blasting cable connector under the yellow dust cover on the side of the CT175-10B Circuit Tester case.

    The E.B. cap circuit resistance is determined by passing a D.C. current of 5 milliamperes (maximum) through the E.B. cap circuit and comparing the resultant voltage output of a bridge circuit with a reference voltage.
 
    A special 1.4 volt (at no load) current limited battery, Research Energy of Ohio, Inc. type CTB20, provides the power for the resistance measurement circuit.  The maximum output current available from this battery is 15 milliamperes.

WARNING:  DO NOT ATTEMPT TO REPLACE THE SPECIAL BATTERY IN THE CT175-10B CIRCUIT TESTER WITH ANY OTHER TYPE BATTERY.  DETONATION OF THE E.B. CAPS BY THE CT175-10B CIRCUIT TESTER MAY RESULT.

       Two 4.5 volt Eveready #523 alkaline batteries, Research Energy of Ohio, Inc. type CTB10, connected in series provides the power for the electronics and the LED indicator.

WARNING:  USE ONLY ALKALINE TYPE BATTERIES.  Do not use carbon-zinc type batteries as they do not have the amperage capacity to operate the CT175-10B Circuit Tester.

WARNING:  REMOVE ALL PERSONNEL FROM THE BLAST AREA BEFORE USING THE CT175-10B CIRCUIT TESTER.  The CT175-10B Circuit Tester is not intended to be used as a galvanometer.

    In use, the blasting cable is inserted into the connector under the yellow cover on the side of the CT175-10B Circuit Tester case after the shot is wired but prior to using the BM175-10ST Blasting Machine.  The CAP CIRCUIT rotary switch is depressed which activates the electronics and places the E.B. cap circuit selected by the rotary switch under test.  The CIRCUIT OK indicator, when lit, indicates that the resistance of the circuit being measured is less than 175 ohms.

    When the TEST switch is not depressed, the resistance of the E.B. cap circuit selected for test on the CAP CIRCUIT rotary switch may be measured using an approved blasting galvanometer connected to the two METER terminals (jacks) located beside the blasting cable connector under the yellow cover.

    When the blasting cable is connected to the CT175-10B Circuit Tester, all cap circuits are open (not shunted) except the cap circuit under test which is connected to the tester electronic circuit when the TEST pushbutton switch is depressed or to the METER terminals when the TEST pushbutton switch is not depressed.  When the circuit tester is turned to OFF, all cap circuits are open.

WARNING:  CONNECT THE CABLE TO THE CT175-10B CIRCUIT TESTER ONLY WHEN TESTING THE E.B. CAP CIRCUITS.  As soon as the testing is complete, connect the cable to the shunted socket on the cable reel if the blast is not to be initiated immediately.

Operational Test Procedure
  1. Insert the AD5 Load Plug into the socket under the yellow dust cover of the CT175-10B Circuit Tester.
  2. Depress the TEST pushbutton switch and hold it down.
  3. Rotate the CAP CIRCUIT switch through circuits 1 to 10 and to OFF.
    1. The CIRCUIT OK indicator should light in each position of the CAP CIRCUIT switch except OFF indicating that the circuit tester batteries are functional.
    2. The CIRCUIT OK indicator should not light when the CAP CIRCUIT switch is in the OFF position.
  4. Release the TEST switch and remove the AD5 Load Plug.
  5. Depress the TEST pushbutton switch and hold it down.
  6. Rotate the CAP CIRCUIT switch through all CAP CIRCUIT positions including OFF.  The CIRCUIT OK indicator should be off for each switch position.
  7. Release the TEST pushbutton switch.
General Operating Procedure

    Note:  The following procedure is intended as a guide only, and each user must prepare and verify his own procedure consistent with Local, State, and Federal regulations.

  1. After verifying that the E.B. cap circuits are ready to check and that all personnel have been removed from the blast area, remove the blasting cable plug from the SHUNTED socket on the cable reel and insert it into the CT175-10B Circuit Tester connector under the yellow dust cover.
  2. Depress the TEST pushbutton switch on the circuit tester and rotate the CAP CIRCUIT switch through positions 1 to 10.
    1. The CIRCUIT OK indicator should light on each circuit indicating that the E.B. cap circuit resistance (including the resistance of teh blasting cable) is 175 ohms or less.
    2. If the CIRCUIT OK indicator does not light on a particular circuit, the resistance of that circuit exceeds 175 ohms and may have too many E.B. caps wired in series or the circuit may be open due to a broken cap wire, a defective cable, or a wiring error.
    3. Warning:  THE CT175-10B CIRCUIT TESTER WILL NOT INDICATE A SHORT CIRCUIT.  On a short circuit, the CIRCUITS OK indicator will light.  To determine a short circuit or for precise E.B. cap circuit resistance, use an approved Blasting Galvanometer connected to the METER jacks next to the blasting cable connector under the yellow dust cover.
  3. Release the TEST pushbutton switch and rotate the CAP CIRCUIT switch to OFF.
  4. If the operator desires to measure the actual E.B. cap circuit resistance (including the blasting cable, hookup wire and E.B. cap leg wire) using a blasting galvanometer, connect the blasting galvanometer leads to the METER jacks under the yellow dust cover.
    1. Rotate the CAP CIRCUIT switch to the circuit desired to test.
    2. The circuit resistance will be indicated on the blasting galvanometer.
    3. When finished testing all circuits, rotate the CAP CIRCUIT switch to OFF.
  5. Remove the blasting cable plug from the CT175-10B Circuit Tester socket and insert it into the SHUNTED socket on the cable reel.




Add to Cart:


  • REO BM175-1OST Sequentional Blasting Machine+Slave, Tester, Plug
  • REO BM175-1OST Sequentional Blasting Machine+Slave, Tester, Plug
  • REO BM175-1OST Sequentional Blasting Machine+Slave, Tester, Plug
  • REO BM175-1OST Sequentional Blasting Machine+Slave, Tester, Plug
  • REO BM175-1OST Sequentional Blasting Machine+Slave, Tester, Plug
  • REO BM175-1OST Sequentional Blasting Machine+Slave, Tester, Plug
  • REO BM175-1OST Sequentional Blasting Machine+Slave, Tester, Plug

This product was added to our catalog on Tuesday 25 January, 2011.