AMETEK pressure transmitter MIL-T-24742 (SH)

Description
Model 742 Pressure Transducer (General Information): The 742 Pressure Transducer has been specially designed to meet the needs of military and/or marine applications and conforms to military specification MIL-T-24742 (SH). The 742 accurately measures pressure and transmits a fully adjustable 4 to 20 mA or 0-5 VDC output signal for remote display, recording, or control.

Model 742R Gage Pressure Version: The 742R is available in gauge, compound, vacuum and absolute ranges from 30”Hg vacuum to 0-10,000 psi.

Model 742D Differential Pressure Version: The 742D is available in differential ranges from 10 inches of water to 600 psi.

Direct Replacement
The 742D transducer is directly interchangeable with existing pressure transducers designed to MIL-T-24742. The mounting is designed to match the footprint of existing transducers for quick and easy installation.

Minimal Maintenance
Calibration is quick and easy with the non-interacting zero and span adjustments.

Specifications

Functional Specifications
in accordance with MIL-T-24742 (SH)
Applications
steam, sea water, fl ue gas, ammonia, oxygen, other gases, fresh water, condensate, nitrogen, inert gases and liquid hydrocarbons
Output
4-20 mADC, 0-5 VDC
Power Supply
28 VDC ±4.5 VDC with reverse polarity protection
Loop Resistance
0 to 250 ohms
Zero/Span Adjustments
±5% full scale output
Temperature Limits
Compensated: 0°C to 65°C (32°F to 149°F)
Overpressure
200% of range or maximum rated line pressure (whichever is greater)
Humidity
0 to 100% RH
Volumetric Displacement
less than 0.002 cc
Weight
18 oz. (0.51 kg)
5.AMETEK pressure transmitter Model 831
The Model 831 transmitters are the most durable, accurate and cost effective fixed range pressure transmitter available. An all 316 stainless steel transmitter, it is designed for years of stable performance in even the toughest environmental and corrosive media conditions. With its all-welded construction, this transmitter is weatherproof and capable of a direct spray with forces up to 200 psi without internal leakage. The Model 831 (standard and low power) has FM and CSA explosion-proof ratings. The 831D (differential pressure) also carries the CSA explosion-proof rating. All Model 831s meet NACE standards for offshore applications. A one year warranty is standard with every unit.

The small size and light weight of the Model 831 transmitter eliminates the need for complicated mounting hardware and mechanical supports, thereby substantially reducing installation time. The in-line connection permits simple field wiring without the need for additional hardware, adding to the speed and ease of installation.

The standard Model 831 and the Model 831D feature a 4 to 20 mA output standard with a 12 to 30 VDC power supply. The Model 831 Low Power provides a three wire 1-5 or 0.8-3.2 voltage output and requires less than 30 millwatts of total power to operate. The combination of low power requirement, small size, excellent performance and low price make the Model 831 Low Power Transmitter ideal for critical outdoor applications. This model requires 6 or 8-14 VDC excitation and is available in pressure ranges from 15 to 5000 psi.

Overall Features

• Available in Differential Pressure, Low Power or Standard version
• All welded 316L stainless steel construction and wetted parts
• 3/4 inch NPT female conduit connection cable
• 1/2 inch NPT female pressure port
• 24 inch cable length standard
• All models are CSA approved, explosion proof, and meet NACE standards for off-shore applications
• The Low Power and Standard versions are FM approved with the explosion proof rating
Product Features

Model 831 Standard

• Available in pressure ranges from 6 psig to 5000 psig
• Rugged construction
• Available with conduit adapter
• Optional EMI protection
Model 831 Low Power
• Available in pressure ranges from 6 psig to 5000 psig
• 8 to 14 or 6 to 14 VDC with reverse polarity protection
• Perfect for solar or battery applications
• Current draw < 3 mA
• Optional EMI protection
Model 831D
• Measures differential pressure
• Available in pressure ranges from 6 psid to 500 psid
Specifications

Functional Specifi cation Service
Standard Pressure Ranges
Output
Null Offset at 77°F (25°C)
Span Offset at 77°F (25°C)
Power Supply (Transmitter must be powered by an approved power supply.)
Loop Resistance (max.) for mA or Load (min.) for VDC
Temperature Limits
Operating and Electronics (Ambient)
Process Interface and Storage
Compensated
Burst Pressure
Overrange Limits
Humidity Limits
Accuracy
Stability
Temperature Effect (between -20° and 180°F (-29° and 82°C) Referenced to 77°F (25°C)
Zero and Span
Vibration Effect
Overrange Effect
Physical Specifications
Process Wetted Parts
Non Wetted Parts
Safety Classifications

6. AMETEK pressure transmitter Model 851
The Model 851 is designed for years of stable performance in even the toughest environmental and media conditions, such as refineries, petrochemical facilities, paper & pulp plants, and waste water treatment facilities. Approvals include FM and CSA for explosion-proof and CSA for intrinsic safety ratings. The Model 851 also meets NACE standards for offshore applications. A one year warranty is standard with every unit.

The small size and light weight of the Model 851 transmitter eliminates the need for complicated mounting hardware and mechanical supports, thereby reducing installation time substantially. The in-line connection permits simple fi eld wiring without the need for additional hardware, adding to the speed and ease of installation. Its slim profi le allows for mounting in places too tight for most other transmitters.

A 4-20 mA output is standard with a 12-40 VDC power supply. The Model 851 is bench adjustable, allowing for calibration of zero and span. With the cover sealed double O-ring assembly, this transmitter is weather proof and capable of direct spray, clean-in-place applications

Ambient Operating
FM Intrinsically Safe: -40° to 140°F (-40° to 60°C)
FM Explosion-proof: -40° to 180°F (-40° to 82°C)
CSA Intrinsically Safe T3C: -40° to 140°F
(-40° to 60°C)
CSA Explosion-proof: -40° to 180°F (-40° to 82°C)
Process Interface
-40° to 212°F (-40° to 100°C)
Storage
-40° to 212°F (-40° to 100°C)
Overhang
300% upper range limit
Humidity Limits
0 to 100% RH
7. AMETEK pressure transmitter Model 88
Standard Version (Model 88C):
A full-featured, all stainless steel transmitter, Model 88 is designed for years of stable performance in even the toughest environmental and media conditions. Approvals include FM and CSA for explosion-proof and CSA for intrinsic safety ratings. The Model 88 also meets NACE standards for offshore applications. A five year warranty is standard for the 88C.

The small size and light weight of the Model 88 Transmitter eliminates the need for complicated mounting hardware and mechanical supports, thereby reducing installation time substantially. The integral junction box permits simple field wiring without the need for additional hardware, adding to the speed and ease of installation. An amplifier PCB enclosed in a sealed chamber is used to convert the millivolt signal from the sensor to a calibrated 4 to 20 mA transmitter output. Feedthroughs for EMI and RF protection are used between the amplifier board and the terminal housing. A 4 to 20 mA output is standard with a 12 to 40 VDC power supply. With all 316 stainless steel welded construction, the Model 88 is compatible with corrosive media and hazardous environments. With the cover retained by a stainless steel chain and no internal jumpers for span turndown, losses due to misplaced or dropped parts are eliminated.

Flushmount Version (Model 88F):
The Model 88F Pressure Transmitter is a durable, full featured, flush diaphragm pressure transmitter with all the features of the standard Model 88C. In addition, it is designed to mount flush against process media and to prevent any media particles, such as from paper slurry, from collecting at the diaphragm. Its rugged 316 stainless steel and HASTELLOY® C construction make it perfect for tough environments and corrosive media conditions.

Surge Current Rating
30,000 amperes on 8x20 µs wave
Response Time
Less than 1 nanosecond
Leakage
Very low (in the microampere range)

8. AMETEK pressure transmitter Model 89
Description
Model 89 Pressure Transducer (General Information): The Model 89 pressure transducer has been specially designed to meet the needs of military and/or marine applications and conforms to military specifications. The Model 89 accurately measures pressures and transmits a fully adjustable 4-20 mA output signal for remote display, recording or control. The Model 89 is available in gage, compound, vacuum and absolute ranges from 30”Hg vacuum to 0-6000 psi and differential pressures from 300 inch wtr to 400 psi.

Model 89 Gage Pressure Version, QPL-MIL-R-24212C (SH)
• Available in gauge, compound, vacuum and absolute ranges from 30”Hg vacuum to 0-6,000 psi.
Model 89 Differential Pressure Version, QPL-MIL-D-24304B (SH)
• Available in differential ranges from 300 inches of water to 400 psi.
Direct Replacement
The Model 89 transducer is directly interchangeable with existing pressure transducers designed to MIL-Standards. The mounting is designed to match the footprint of existing transducers for quick and easy installation.
Minimal Maintenance
Calibration is quick and easy with the non-interacting zero and span adjustments.
Functional Specifications
in accordance with
MIL-P-24212C (SH)
Applications
steam, oil, sea water, fl ue gas, ammonia, oxygen, other gases, fresh water, condensate
Output
4-20 mADC
Power Supply
28 VDC ±4.5V with reverse protection
Loop Resistance
0-250 ohms
Zero/Span Adjustments
8% F.S. output
Temperature Limits
Compensated: 0°C to 65°C (32°F to 149°F)
Overpressure
200% of range up to maximum of 10,000 psi (whichever is less)
Humidity
0-100% RH
Volumetric Displacement
less than 0.002 cc
9. AMETEK pressure transmitter Model ACT
Description
The Model ACT builds upon the successful DCT product line by offering an Analog Compensated Transducer with 0 to 100mV output. The Model ACT is ideal for OEM customers that desire high-speed differential outputs into their control system. The Model ACT is available in brass and stainless steel.

This product is offered in a variety of mounting options, stainless steel or brass construction, and numerous pressure ranges. It is fully compensated for the ef-
fects of pressure and temperature change and calibrated to produce industry standard electrical outputs. The ACT accepts both regulated and pulsed excitation voltages and provides output signals such as 0 to 100mV. The ACT Transducer is offered in pressure ranges from 1 psi up to and including 3000 psi.

The Model ACT is extremely accurate, less than ±0.3% full scale over pressure. The universal design incorporates a stainless steel isolation diaphragm and 316 stainless steel construction for use with most media types. An economical non-isolated brass transducer, used for clean, dry media is also available.

The ACT offers premium performance and versatility of use for many applications, both for the general industrial end user and original equipment manufacturers (OEM). It combines precision along with the durability to operate under difficult environmental conditions.

The ACT is manufactured in the United States under ISO 9001:2008 control.

Specifications
Pressure Range
Vacuum to 3000 psi (brass limited to 500 psi
Reference Accuracy(includes repeatability, hysteresis, non-linearity – BFSL)
±0.2% full scale TYP, ±0.3% full scale maximum (consult factory for ranges below 15 psi)
1 Yr. Stability
<0.25% full scale
Thermal Effect On Null
±2% full scale (±1% typical) TYP over compensated range
Thermal Effect On Span
±2% full scale (±1% typical) TYP over compensated range (2% maximum)
Operating Temperature
-40°C to 80°C
Process Temperature
-40°C to 100°C
Compensated Temperature
-5°C to 55°C
Output
0 to 100 mVDC @ 10 VDC
Maximum Input Supply Voltage
10 VDC, output ratiometric with input from 2V to 10 VDC
Output Resistance
3.5 KΩ to 6 KΩ
Burst Pressure
3x full scale for all ranges except 300 and 500 psi units, which have a burst pressure of 750 psi; higher over- pressure upon request
Vibration
10G, 55 to 2000 Hz
Shock
30G
Process Wetted Material
316L stainless steel; (borosilicate silicon, RTV, epoxy on brass models)
Housing Material
Aluminum or ULTEM (for Packard connector)
Process Connection
7/16-20 SAE, 1/8 NPT, 1/4 NPT*
Electrical Connection
Cable, DIN, Packard, conduit (1/2 NPT only)*
Weight
Less than 5 oz. (140 grams)
Temperature Measurement Option
Additional linear temperature measurement available, please consult factory
10. AMETEK pressure transmitter Model DCT
Description
The Model DCT Pressure Transducer is designed for general industrial and commercial requirements offering excellent performance over a wide range of applications. This model is based on proven micro-machined silicon technology providing high reliability, long-term stability, and low cost relative to competing technologies. AMETEK has been developing and manufacturing high performance pressure sensing products for nearly 100 years, and the DCT brings a new level of accuracy to the AMETEK product portfolio.

This product is offered in a variety of mounting and electrical output options, stainless steel or brass construction, and numerous pressure ranges. It is fully digitally compensated for the effects of pressure and temperature change and calibrated to produce industry standard electrical outputs. The DCT accepts both unregulated and regulated excitation voltages and pro- vides output signals such as 1 to 5 VDC, 1 to 6 VDC, 0 to 5 VDC, 0.5 to 4.5 VDC ratiometric and 4 to 20mA. The DCT Transducer is offered in pressure ranges from 1 psi up to and including 3000 psi.

The Model DCT is extremely accurate, less than ±0.3% full scale over pressure and less than ±1.0% full scale over a wide compensated temperature range (±0.5% full scale optional). The design incorporates a stainless steel isolation diaphragm and 316 stainless steel construction for use with most media types. An economical non-isolated brass transducer, used for clean, dry media is optional.

The DCT offers premium performance and versatility of use for many applications, both for the general industrial end user and original equipment manufacturers (OEM). It combines precision along with the durability to operate under difficult environmental conditions.

Also available is the ACT, an analog compensated 0-100 mV unit in brass and SST.

The DCT and the ACT are manufactured in the United States under ISO 9001:2008 control.

Specifications

Pressure Ranges*
Vacuum to 3000 psi
1 psi full scale
6 psi full scale
15 psi full scale
30 psi full scale
60 psi full scale
100 psi full scale
150 psi full scale
200 psi full scale
300 psi full scale
500 psi full scale
1000 psi full scale
2000 psi full scale
3000 psi full scale
Reference Accuracy (includes repeatability, hysteresis, non-
linearity – BFSL)
±0.2% full scale TYP, ±0.3% full scale maximum (consult factory for ranges below 15 psi)
Total Error Band (includes temperature effects and null and span
set points)
±1% full scale (±0.5% typical, consult factory for ranges below 15 psi
1 Yr. Stability
<0.25% full scale
Operating Temperature
-40°C to 80°C
Process Temperature
-40°C to 100°C
Compensated Temperature
-25°C to 75°C
Burst Pressure
3x full scale for all ranges except 300 psi and
500 psi units, which have a burst pressure of 750 ps
Vibration
10G, 55 to 2000 Hz
Shock
30G
EMC
Rated 3 V/m (requires “PE” option)
Process Wetted Material
316L stainless steel; (borosilicate silicon, RTV, epoxy on brass models)
Housing Material
Aluminum or ULTEM (for Packard connector)
Process Connection
7/16-20 SAE, 1/8 NPT, 1/4 NPT*
Electrical Connection
Cable, DIN, Packard, conduit (1/2 NPT only)*
Weight
Less than 5 oz. (140 grams)
11. AMETEK pressure transmitter Model IND-100
The Model IND-100 Pressure Transmitter has been designed for use in a variety of industrial applications such as plant process and utility pressure measurements, compressor control, and hydraulic and pneumatic manufacturing systems. The AMETEK IND-100 offers exceptional reliability in industrial as well as outdoor environments. It provides unequaled performance and is perfectly suited for the demanding price requirements of this market.
EMI/RFI resistance is critical and is provided on the AMETEK IND-100 Transmitter as protection against noise-generating variable speed motors and radio equipment that is common on the factory fl oor. In addition, all AMETEK transmitters are thermally compensated over a wide temperature range to handle outdoor environments.
AMETEK utilizes the most stable sensor available for IND-100 transmitters, sputtered METAL THIN FILM technology. The wetted surfaces are 316L, and Hastelloy. The circuits are isolated from external interference with RFI/EMI fi lters and a power limiting circuit which has been agency approved to meet Class I, Div. 1 intrinsic safety standards. IND-100 transmitters with pigtail connectors are also NEMA 4x rated to meet the needs of outdoor installations.
AMETEK will supply the product through its global distribution partner network so each application will receive personal support throughout the life of the product.

Specifications
Functional Specifications
Service
Liquid, gas or vapor
Range Limits
100 psig, 250 psig, 1000 psig, 2000 psig, 3000 psig; alternate
ranges, including bar also available (consult factory)
Output
4-20 mA, 2-wire, current limited, 0-5 VDC
Power Supply
12-30 VDC with reverse polarity protection
Loop Resistance
0 ohms at 12 VDC; 900 ohms at 30 VDC (mA only
Output Loading
75 kohm (VDC output only
Span/Zero Adjustment
±5% of FS
Temperature Limits
Compensated: 0° to 50°C
Operating: -25° to 85°C
Storage: -40° to 85°C
Humidity
0-95% RH, pigtail model*
Overrange
150% FS
Burst Pressure
400% FS
Hazardous Locations
Intrinsic safety (with barrier): Class I, Div. 1
Non-incendive: Class I, Div. 2
12. AMETEK pressure transmitter Model LMA
Lightning protection units are available to help protect your AMETEK U.S. Gauge, PMT Products Level Measurement System from unexpected lightning and secondary surges.
These high performance LP units are easy to install, are maintenance-free and respond in less than one nanosecond. When placed at the meter and at the transmitter, they defend against powerful surges on both the signal and power lines.
If a surge should occur, the LP unit will clamp the circuit, preventing excessive voltage from damaging your sensitive equipment. This saves you replacement and downtime costs.
Features
• Protection for the LevelMate, Model DMC Meter, Model SST, and Model
• 575 Transmitters
• Nanosecond, bipolar response
• AC and DC protection available
• Powerful surge protection
• Small, compact size
• New or existing installation
• Enhances system integrity
• Reduces downtime
• Maintenance free

13. AMETEK pressure transmitter Model SPT
The Model SPT general purpose industrial pressure transducer is designed for use in a variety of industries. Providing excellent media compatibility with all 316 stainless steel wetted parts, it is perfectly suited for applications where media compatibility is a problem. With its superb stability, low cost and proven reliability, it is ideal for OEM applications. This model provides a high level voltage output from an unregulated supply. Each unit is shipped fully compensated for pressure and temperature and is completely interchangeable without the need for further calibrations.

The SPT features a solid state silicon piezoresistive sensing element, electrostatically bonded to glass to virtually eliminate the effects of induced stress and vibration. Behind every SPT series transducer is over 15 years of stainless steel/oil isolation technology. The silicon sensor is completely isolated via an oil- filled chamber.

The transducer has a computer-controlled laser trimmed custom hybrid circuit which standardizes output and provides precise temperature and pressure compensation. Rugged construction and a standard Packard electrical connector make it truly cost effective.

Specifications

Pressure Range1
Reference ordering information ranges
Maximum Overpressure
2 times full scale
Burst Pressure (At 25°C)
3 times full scale or 12500 psi, which- ever is less (300 and 500 psi limited to 750 psi maximum)
Excitation
8 to 15 VDC
Null Offset (At 25°C)
1.0 VDC ±2% span
Span (At 25°C)
5.0 VDC ±1% span
Accuracy
±0.25% span from best fit straight line including non-linearity, repeatability and hysteresis
Operating Temperature Range
-40° to 105°C
Compensated Temperature Range
-5° to 55°C
Thermal Effect On Zero (Null)2
±0.5% span (typical) overcompensated temperature range, 2% max
Thermal Effect On Span2
±0.5% span (typical) overcompensated temperature range, 2% max
Response Time
Stability
±0.25% span/year
Shock3
50 g
Weight
50 grams
Electrical Terminations
Packard connector #12162189 with 18 inch leads
Media Compatibility
316 stainless steel wetted parts
Humidity
Passes MIL-STD-202F Method 103B, Condition A
Protection Class
IP-64
Output Impedance
>50K ohms

14. AMETEK pressure transmitter Sta-Kool Cooling Element
Description
Extreme process temperature reduces the accuracy, reliability, durability, and the overall life of a pressure gauge. The AMETEK U.S. Gauge (USG) Sta-Kool™ cooling element was designed for pressure measurements with this extremely high temperature environment in mind. Under actual laboratory testing condition, in still room air, the 316L stainless steel Sta-Kool™ cooling element was able to reduce 400°F (204°C) liquid process temperature
down to 100°F (38°C) at the active portion of the Bourdon tube (see chart 1 on next page).

AMETEK USG recommends using a Sta-Kool™, capillary or diaphragm seal to protect pressure gauges, pressure transmitters or pressure switches (not supplied by USG) from process temperatures exceeding 190ºF. Anything exceeding 190ºF will start to degrade weld joints and electronics. The Sta-Kool™ can be either threaded or welded (to eliminate a potential leak path) to any pressure gauge with 1/2" NPT male connection made out of
compatible material.

Furthermore, the Sta-Kool™ cooling element can be attached in between a pressure gauge and diaphragm seal for the most comprehensive process measurement protection possible, protecting the instrument from pulsation and temperature extremes.

Specifications

Connection
1/2-14 NPT male X 1/2-14 NPT female
Body Material
316L stainless steel
Weight
15 oz. (0.4 kg
Operating Parameters
5000 psi maximum at 100°F (38°C)
750ºF (400°C) maximum at 3500 ps

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