PCB Piezotronics PCB-137B29B Manual de usuario

Model 137B29B

Quartz, Free-field ICP® blast pressure pencil probe, 25 psi, 200 mV/psi, BNC connector

Installation and Operating Manual

For assistance with the operation of this product,

contact the PCB Piezotronics, Inc.

Toll-free: 716-684-0001

24-hour SensorLine: 716-684-0001

Fax: 716-684-0987

E-mail: [email protected]

Web: www.pcb.com

Manual 21354 Rev E

ECN 50523

Repair and Maintenance

PCB guarantees Total Customer Satisfaction through its

“Lifetime Warranty Plus” on all Platinum Stock Products

sold by PCB and through its limited warranties on all other

PCB Stock, Standard and Special products. Due to the

sophisticated nature of our sensors and associated

instrumentation, field servicing and repair is not

recommended and, if attempted, will void the factory

warranty.

Beyond routine calibration and battery replacements

where applicable, our products require no user

maintenance. Clean electrical connectors, housings, and

mounting surfaces with solutions and techniques that will

not harm the material of construction. Observe caution

when using liquids near devices that are not hermetically

sealed. Such devices should only be wiped with a

dampened cloth—never saturated or submerged.

In the event that equipment becomes damaged or ceases

to operate, our Application Engineers are here to support

your troubleshooting efforts 24 hours a day, 7 days a

week. Call or email with model and serial number as well

as a brief description of the problem.

Calibration

Routine calibration of sensors and associated

instrumentation is necessary to maintain measurement

accuracy. We recommend calibrating on an annual basis,

after exposure to any extreme environmental influence,

or prior to any critical test.

PCB Piezotronics is an ISO-9001 certified company whose

calibration services are accredited by A2LA to ISO/IEC

17025, with full traceability to SI through N.I.S.T. In

addition to our standard calibration services, we also offer

specialized tests, including: sensitivity at elevated or

cryogenic temperatures, phase response, extended high

or low frequency response, extended range, leak testing,

hydrostatic pressure testing, and others. For more

information, contact your local PCB Piezotronics

distributor, sales representative, or factory customer

service representative.

Returning Equipment

If factory repair is required, our representatives will

provide you with a Return Material Authorization (RMA)

number, which we use to reference any information you

have already provided and expedite the repair process.

This number should be clearly marked on the outside of

all returned package(s) and on any packing list(s)

accompanying the shipment.

Contact Information

PCB Piezotronics, Inc.

3425 Walden Ave.

Depew, NY14043 USA

Toll-free: (800) 828-8840

24-hour SensorLine: (716) 684-0001

General inquiries: in[email protected]

Repair inquiries: rma@pcb.com

For a complete list of distributors, global offices and sales

representatives, visit our website, www.pcb.com.

Safety Considerations

This product is intended for use by qualified personnel

who recognize shock hazards and are familiar with the

precautions required to avoid injury. While our equipment

is designed with user safety in mind, the protection

provided by the equipment may be impaired if equipment

is used in a manner not specified by this manual.

Discontinue use and contact our 24-Hour Sensorline if:

Assistance is needed to safely operate equipment

Damage is visible or suspected

Equipment fails or malfunctions

For complete equipment ratings, refer to the enclosed

specification sheet for your product.

Definition of Terms and Symbols

The following symbols may be used in this manual:

DANGER

Indicates an immediate hazardous

situation, which, if not avoided, may

result in death or serious injury.

Manual 21354 Rev E

ECN 50523

CAUTION

Refers to hazards that could damage

the instrument.

NOTE

Indicates tips, recommendations and

important information. The notes

simplify processes and contain

additional information on particular

operating steps.

The following symbols may be found on the equipment

described in this manual:

This symbol on the unit indicates that

high voltage may be present. Use

standard safety precautions to avoid

personal contact with this voltage.

This symbol on the unit indicates that

the user should refer to the operating

instructions located in the manual.

This symbol indicates safety, earth

ground.

Manual 21354 Rev E

ECN 50523

PCB工业监视和测量设备 - 中国RoHS2公布表

PCB Industrial Monitoring and Measuring Equipment - China RoHS 2 Disclosure Table

部件名称

有害物质

铅(Pb)

汞

(Hg)

镉

(Cd)

六价铬(Cr(VI))

多溴联苯 (PBB)

多溴二苯醚(PBDE)

住房

PCB板

电气连接器

压电晶体

环氧

铁氟龙

电子

厚膜基板

电线

电缆

塑料

焊接

铜合金/黄铜

本表格依据 SJ/T 11364 的规定编制。

O：表示该有害物质在该部件所有均质材料中的含量均在 GB/T 26572 规定的限量要求以下。

X：表示该有害物质至少在该部件的某一均质材料中的含量超出 GB/T 26572 规定的限量要求。

铅是欧洲RoHS指令2011/65/ EU附件三和附件四目前由于允许的豁免。

CHINA RoHS COMPLIANCE

Manual 21354 Rev E

ECN 50523

Component Name

Hazardous Substances

Lead (Pb)

Mercury (Hg)

Cadmium (Cd)

Chromium VI

Compounds

(Cr(VI))

Polybrominated

Biphenyls (PBB)

Polybrominated

Diphenyl Ethers

(PBDE)

Housing

PCB Board

Electrical Connectors

Piezoelectric Crystals

Epoxy

Teflon

Electronics

Thick Film Substrate

Wires

Cables

Plastic

Solder

Copper Alloy/Brass

This table is prepared in accordance with the provisions of SJ/T 11364.

O: Indicates that said hazardous substance contained in all of the homogeneous materials for this part is below the limit

requirement of GB/T 26572.

X: Indicates that said hazardous substance contained in at least one of the homogeneous materials for this part is above the limit

requirement of GB/T 26572.

Lead is present due to allowed exemption in Annex III or Annex IV of the European RoHS Directive 2011/65/EU.

Drawing Number: 40955

Revision: NR

ECO#: 39372

OPERATION MANUAL FOR

FREE FIELD BLAST PRESSURE PROBE

Models 137B21X, B22X, B23X, B24X

1.0 INTRODUCTION

The Series 137B2XX Free Field Blast ICP

Pressure

Probe is designed for measuring free field blast and

shock tunnel pressure time profiles.

Designed with an ICP

built-in source follower

amplifier, the 137B2XX Series offers sensitivities of

1, 20, 10 and 100 mV/psi with full-scale ranges from

0 to 50, 250, 500 or 5000 psi. The 137B2XX Series

is constructed with a stable quartz piezoelectric

element in an Invar housing

2.0 INSTALLATION

In field blast measurements, mount the Series

137B2XX pressure probe in an axial direction to the

blast source. The probes should be elevated high

enough off of the ground such that ground does not

interfere with the measured pressure. See photo 1.

Photo 1

The sensing surface should be aligned in a vertical

plane with respect to the ground as shown in photo 2.

Avoiding direct exposure of the diaphragm to

sunlight is good practice so that changing

temperatures throughout a test day do not change the

sensitivity of the sensor. In any case care must be

taken such that the sensor’s diaphragm is not oriented

down to avoid ground reflections.

In some cases, where flash temperatures such as those

generated by blasts and shock fronts are present, it

may be necessary to thermally insulate the diaphragm

to minimize signals generated by these effects.

Photo 2

Common black vinyl electrical tape has been found to

be an effective thermal insulating material in many

cases. One layer may be used across the end of

diaphragm and adaptor. See photo 3.

Photo 3

A silicone rubber coating approximately 0.010 inch

(0.25 mm) thick has also been proven effective in

many applications. General Electric RTV type 106 is

recommended (PCB Model 065A67). Apply the

rubber coating to the surface of the diaphragm and

allow it to cure in accordance with the manufacturer’s

instructions.

3.0 OPERATION

Using suitable cable, connect the sensor to one of

PCB's Series 480, 481, 482, 483, or 484 signal

conditioners or equivalent power supply. If using a

PCB line power unit, the equipment will supply the

137B2XX with an adjustable 2 to 20 mA constant

current at +22 to +30 VDC through a current-

regulating circuit. If using a battery-operated unit,

the constant current is 2 mA. See Guide G-0001 for

powering and signal utilization information pertinent

to all ICP

instrumentation.

Drawing Number: 40955

Revision: NR

ECO#: 39372

OPERATION MANUAL FOR

FREE FIELD BLAST PRESSURE PROBE

Models 137B21X, B22X, B23X, B24X

Switch power on and observe reading of bias

monitoring voltmeter on front panel of signal

conditioner.

If indicator is in green section of indicator panel, the

IC amplifier is producing proper bias (8 to 14 VDC),

the cable connections are normal, and the system is

ready to operate.

If the pointer moves into the red area of the fault

monitor meter, output is zero and a short is indicated.

The short could be located in amplifier cable

connectors or power unit.

If the pointer moves into the yellow area of the fault

monitor meter, an open circuit is indicated with full

power supply voltage.

An open circuit could be the result of a faulty

amplifier, an open cable or open connectors. Check

to be sure connectors are properly mated. Some PCB

power units feature fault LEDs in place of a fault

meter. Instead of a pointer, the fault LED will light

when an open or short circuit condition is present.

Allow the sensor to thermally stabilize for about one

minute. A signal drift may occur when the cable is

connected to the readout instrument. This drift

occurs during charging of the coupling capacitor in

the power unit. The signal will stabilize in several

minutes. Proceed with measurements.

Most line-powered signal conditioners manufactured

by PCB have an adjustable current feature allowing a

choice of input currents from 2 to 20 mA. In general,

for the lowest noise (best resolution), choose the

lower current ranges.

In order to maintain a high frequency response of the

system when driving long cables (to hundreds or

thousands of feet), use a higher current, up to 20 mA

maximum. Use of low-capacitance cable (i.e. RG

62/U) and impedance-matching variable resistors are

suggested to improve long cable performance

characteristics. See Guide G-0001 for a discussion

on cable considerations.

3.1 POLARITY

The 137B2XX Series produces a positive-going

output voltage for increasing pressure output.

4.0 LOW-FREQUENCY RESPONSE

Consult Section 7.0 in General Guide G-0001 for

detailed explanation of low-frequency characteristics

of ICP

instrumentation.

5.0 CALIBRATION

Do not try to calibrate the Series 137B2XX statically.

The Series 137B2XX is calibrated dynamically by

PCB using a hydraulic pulse technique.

For best accuracy, use the calibration certificate

supplied. Factory recalibration is available for a

nominal charge.

6.0 MAINTENANCE

Although ICP

sensors have low-output impedance

and are not usually affected by moisture, in extremely

damp environments it may be well to protect cable

connections with shrink tubing.

It is well to observe the following precautions in

using the sensor:

1. Do not exceed specified maximum range.

2. Do not subject sensor to temperatures

exceeding temperature shown on specification sheet.

3. Do not apply voltage to sensor without

current-limiting diodes or other current protection.

4. Do not apply more than 20 mA of current to

the sensor.

Field repair of the piezoelectric element or amplifier

of the Series 137B2XX is not practicable. Thus,

should a sensor in this series require servicing, refer

to the warranty sheet.

CAUTIONARY NOTE: If sensors are left outside

overnight, they should be coated with silicone oil and

covered. The protective silicone oil or grease coating

should also be applied when the sensors are operated

in a humid or rainy environment.

®ICP is a registered trademark of PCB Piezotronics

Model Number

137B29B ICP® PRESSURE SENSOR Revision: NR

ECN #: 52937

Performance ENGLISH SI

Measurement Range(for ±5V output) 25 psi 173 kPa

Useful Overrange(for ± 10V output) 50 psi 345 kPa [1]

Sensitivity(± 15 %) 200 mV/psi 29 mV/kPa

Maximum Pressure 1,000 psi 6,895 kPa

Resolution .002 psi 0.01 kPa [2]

Resonant Frequency ≥ 300 kHz ≥ 300 kHz

Rise Time(Incident) ≤ 6.5 µ sec ≤ 6.5 µ sec

Non-Linearity ≤ 1.0 % FS ≤ 1.0 % FS [3]

Environmental

Temperature Range(Operating) -100 to +275 °F -73 to +135 °C

Temperature Coefficient of Sensitivity ≤ 0.05 %/°F ≤ 0.090 %/°C

Electrical

Discharge Time Constant(at room temp) ≥ 0.2 sec ≥ 0.2 sec

Excitation Voltage 22 to 30 VDC 22 to 30 VDC

Constant Current Excitation 2 to 20 mA 2 to 20 mA

Output Impedance ≤ 100 Ohm ≤ 100 Ohm

Output Bias Voltage 8 to 15 VDC 8 to 15 VDC

Physical

Sensing Geometry Compression Compression

Sensing Element Quartz Quartz

Housing Material Aluminum Aluminum

Diaphragm Invar Invar

Sealing Epoxy Epoxy

Electrical Connector BNC Jack BNC Jack

Weight 12.4 oz 352 gm [2]

[4]

All specifications are at room temperature unless otherwise specified.

In the interest of constant product improvement, we reserve the right to change specifications without notice.

ICP® is a registered trademark of PCB Piezotronics, Inc.

OPTIONAL VERSION S

Optional versions have identical specifications and accessories as listed for the standard model except

where noted below. More than one option may be used.

NOTES:

[1]For +10 volt output, minimum 26 VDC supply voltage required. Negative 10 volt output may be

limited by output bias.

[2]Typical.

[3]Zero-based, least-squares, straight line method.

[4]See PCB Declaration of Conformance PS023 for details.

Date: 06/16/2022 Date: 06/16/2022 Date: 06/16/2022 Date: 06/16/2022 75339

Entered: ND Engineer: NJL Sales: RWM Approved: RPF Spec Number:

Phone: 716-684-0001

Fax: 716-684-0987

E-M ail: info@pcb.com

3425 Walden Avenue, Depew, NY 14043

SUPPLIED A CCESSORIES:

Model PCS-1 Calibration of pressure sensors up to 15k psi (except Series 113B50) (1)

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