AST Macro Sensors - A Division of Howard A. Schaevitz Technologies Inc. - LVDT  Based Position Sensors and Support Electronics - Pennsauken, NJ, Phone: 856-662-8000, email: lvdts@macrosensors.com
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DC-750 Series General Purpose DC-LVDT Position Sensors

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DC 750 General Purpose LVDT Position Sensors
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Description

Macro Sensors’ DC 750 Series of 3/4 inch (19 mm) DC-operated LVDTs sensors are designed for a wide range of position measurement applications. They use built-in electronics to provide the desirable features of an AC-LVDT, such as frictionless operation and dynamic response, with the added convenience and simplicity of DC input and precalibrated DC output. They are designed to operate in conjunction with PLCs, digital indicators, A/D converters, computer-based data processors, and QC data collection systems.

The DC 750 Series offers eleven standard ranges from ±0.050 inch (±1.25 mm) to ±10 inches (±250 mm) that will accommodate many application requirements. The maximum linearity error for a DC 750 Series sensor is ±0.25% of full range output using a statistically best-fit straight line derived by the least squares method.

DC 750 Series sensors provide highly reliable, contactless operation with the high resolution, excellent repeatability, and low hysteresis associated with LVDT technology. Their exceptional reliability is a result of manufacturing processes and assembly techniques developed and optimized by Macro Sensors over many years of manufacturing LVDT sensors. Their stainless steel housings act as magnetic shields to reduce the effects of external AC magnetic fields, and their sealing meets IEC standard IP-62.

Standard options available for the DC 750 LVDTs include Teflon® bore liners and metric threaded cores. In addition, Macro Sensors can provide a range of mounting accessories, core extension rods and DC power supplies.

Features

Industry-standard 3/4 inch (19 mm) diameter

Ranges of ±0.050 inch to ±10 inches

±15 V DC input, precalibrated 0 to ±10 V DC output

Non-linearity less than ±0.25% of FRO

Through-bore design

Sealed to IEC IP-62

Applications

Machine tool positioners

Materials testing extensometers

Hydraulic cylinder position

Valve position sensing

Automatic assembly equipment

GENERAL SPECIFICATIONS

Input Power
±15 V DC, ± 25 mA
Full Scale Output
0 to ±10 V DC
Output Noise & Ripple
<10 mVrms
Frequency Response (-3dB)
250 Hz (nominal)
Linearity Error
<±0.25% of FRO
Repeatability Error
<±0.01% of FSO
Hysteresis Error
<±0.01% of FSO
Operating Temperature
0°F to +160°F
Operating Temperature
-20°C to +70°C
Thermal Coefficient of Scale Factor
-0.015%/°F (nominal)
Thermal Coefficient of Scale Factor
-0.027%/°C (nominal)
Vibration Tolerance
20 g to 2 kHz
Shock Survival
100 g, 11 ms
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UNIT SPECIFICATIONS

PARAMETER
UNIT OF MEASURE
DC 750
-050
DC 750
-125
DC 750
-250
DC 750
-500
DC 750
-1000
DC 750
-2000
DC 750
-3000
DC 750
-5000
DC 750
-10000
Nominal Range
Inches
±0.050
±0.125
±0.25
±0.50
±1.00
±2.00
 ±3.00
±5.00
 ±10.00
Nominal Range
Millimeter
±1.25
±3.0
±6.3
±12.5
±25
±50
 ±75
±125
 ±250
Scale Factor
V/Inch
200
80
40
20
10
5.0
3.3
2.0
1.0
Scale Factor
V/Millimeter
8.0
3.3
1.6
0.8
0.4
0.2
0.13
0.08
0.04
Dimension "A"
Inches
2.86
3.48
4.24
6.74
8.24
11.21
14.49
19.49
32.38
Dimension "A"
Millimeter
72.5
88.3
107.7
171.2
209.3
284.7
368.0
495.0
822.5
Dimension "B"
Inches
0.80
1.25
1.65
3.45
3.45
5.30
6.20
6.20
9.50
Dimension "B"
Millimeter
20.3
31.7
41.9
87.6
87.6
134.6
157.5
157.5
241.3
Dimension "N"
Inches
0.63
1.13
1.33
2.57
3.33
5.07
6.45
8.95
15.42
Dimension "N"
Millimeter
16.0
28.8
33.8
65.4
84.6
128.8
163.8
227.3
391.6
Weight, Body
Ounces
1.8
2.3
2.8
3.7
5.5
7.5
9.5
11.0
15.7
Weight, Body
Grams
50
64
80
104
158
212
268
318
445
Weight, Core
Ounces
0.08
0.12
0.18
0.40
0.40
0.65
0.80
0.80
1.20
Weight, Core
Grams
2.4
3.7
4.8
11.6
11.6
18.0
22.0
22.0
34.0

 

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Mechanical Drawing & Wiring Diagrams

DC 750 General Purpose LVDT Position Sensors - Mechanical Drawing and Wiring Diagram

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Ordering Information

• For standard DC 750, order by model number with range.
• For metric threaded core option, add -006 after model number with range.
• For Teflon® bore liner option, add -010 after model number with range.
• For both options, add -016 after model number with range.
• For accessories, please visit the accessories page.

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