Series 330
3/8 Inch AC Gaging LVDTs
The Series 330 3/8″ AC Gaging LVDTs provide precise linear displacement sensing in a compact, spring-loaded package. Advanced coil winding techniques are employed to minimize package length and optimize overall performance. Spring forces have been carefully selected to insure the proper balance of mechanical frequency response and tip force. Available in strokes ranging from ± 0.005″ to ± 1.0″, these sensors are ideally suited to material thickness measurements, single or multi-point surface profiling, creep testing, or any other application requiring the use of a small, spring-loaded LVDT. These transducers are also an excellent replacement for a standard dial indicator.
Key Features
- Ranges from ±0.005” to ±1.0”
- Self-Lubricating Bearing
- Non-linearity ≤ 0.20%
- 20 MicroInch Repeatability
SPECIFICATIONS - ELECTRICAL (Reference frequency 7.0 KHz)
MODEL | UNITS | 0330-0000 | 0331-0000 | 0332-0000 | 0333-0000 | 0334-0000 | 0335-0000 | 0336-0000 | 0337-0000 |
LINEAR RANGE | ±Inches ±(mm) |
0.005 (0.13) |
0.01 (0.26) |
0.025 (0.64) |
0.05 (1.27) |
0.1 (2.54) |
0.25 (6.35) |
0.5 (12.7) |
1.0 (25.4) |
NON LINEARITY | < ±0.25% Max. | < ±0.20% Max. | |||||||
OVERTRAVEL | OUTPUT MONOTONIC OVER ENTIRE MECHANICAL TRAVEL | ||||||||
TEMPERATURE RANGE | -4°F to +176°F (-20°C to +80°C) (OPERATING) -65 °F to +176°F (-54°C to +80°C) (STORAGE) | ||||||||
TEMP. COEFFICIENTS | ZERO: < ±0.001% Linear Range/°F SENSITIVITY: < ±0.01% /°F | ||||||||
SENSITIVITY | V/in./V ±10% | 4 | 4 | 4 | 4 | 4 | 2 | 1 | 0.5 |
PHASE ANGLE | ° | 5 | 5 | 5 | 5 | 5 | 0 | 0 | 0 |
INPUT IMPEDANCE | Ohms | 260 | 255 | 250 | 245 | 480 | 320 | 300 | 355 |
INPUT RESISTANCE | Ohms DC | 36 | 36 | 36 | 36 | 60 | 22 | 30 | 40 |
OUTPUT RESISTANCE | Ohms DC | 135 | 135 | 135 | 135 | 205 | 210 | 170 | 185 |
NULL VOLTAGE | % V Ex. Max. | 0.2 | 0.25 | 0.3 | 0.4 | 0.8 | 1 | 1 | 1 |
MAXIMUM EXCITATION | 15 VRMS |
SPECIFICATIONS - MECHANICAL
MODEL | UNITS | 0330-0000 | 0331-0000 | 0332-0000 | 0333-0000 | 0334-0000 | 0335-0000 | 0336-0000 | 0337-0000 |
TOTAL LENGTH A | Inches (mm) | 2.45 (62.2) | 2.45 (62.2) | 2.45 (62.2) | 2.45 (62.2) | 2.93 (74.4) | 5.35 (136) | 6.86 (174) | 10.45 (265) |
SHAFT EXTENSION B | Inches (mm) | 0.65 (16.5) | 0.65 (16.5) | 0.65 (16.5) | 0.65 (16.5) | 0.83 (21.1) | 1.22 (30.9) | 1.69 (42.9) | 2.60 (66.0) |
NULL POSITION C | Inches (mm) | 0.1 (2.54) | 0.1 (2.54) | 0.1 (2.54) | 0.1 (2.54) | 0.15 (3.81) | 0.35 (8.89) | 0.57 (14.5) | 1.15 (29.2) |
SPRING FORCE @ NULL | Lbs. | 0.73 | 0.73 | 0.73 | 0.73 | 1.07 | 0.74 | 0.57 | 0.70 |
FREQ. RESPONSE | Hz | 250 | 180 | 110 | 75 | 45 | 18 | 6 | 6 |
DIMENSIONAL DRAWING
SCHEMATIC
CAD Drawings
Download drawings from 3DContentCentral.com. (Account Required)
ACCESSORIES
PART NUMBER | DESCRIPTION |
A002-0041 | Adapter for alternate contact tips: 5-60 Thread to 4-48 UNF-2B Thread |
G000-0000 | Contact Tip, AGD #7 |
G000-0008 | Contact Tip, .30″ Spherical O.D.; 5-60 Internal Threads. (Included with transducer) |
DC-DC OPERATION WITH OPTIONAL OSCILLATOR/DEMODULATOR
To facilitate prototyping, or in instances where the preference is a DC in – DC out system, any of the standard or High Temperature Series 330 can be used in conjunction with the Model 1000- 0014 Oscillator/Demodulator. Designed to work together, the DC system gives the same level of performance as provided by the AC LVDT alone. The high level DC output voltage can be directly interfaced with analog circuits as well as data acquisition cards, PLCs, or A/D converters. Provisions for customizing the Model 1000-0014 to provide zero offsets and nonstandard gains allow a simple and cost effective method of tailoring a system to meet individual customer requirements.
SYSTEM SPECIFICATIONS (Combined Performance of LVDT and 1000-0014)
MODEL | UNITS | 0330-0000 | 0331-0000 | 0332-0000 | 0333-0000 | 0334-0000 | 0335-0000 | 0336-0000 | 0337-0000 |
SIGNAL OUTPUT | ±VDC | 0.2 | 0.4 | 1.0 | 2.0 | 4.0 | 5.0 | 5.0 | 5.0 |
OUTPUT CURRENT | ±3 mA without distortion | ||||||||
OUTPUT RIPPLE | VRMS | 0.004 | 0.008 | 0.02 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 |
POWER INPUT | ±14.5 to ±28 VDC @ ±100 mA Max., Input polarity protected | ||||||||
TEMPERATURE RANGE | 1000-0014 | +32 °F to +158°F (0°C to +70°C ) (Operating) -65 °F to +257°F (-54 °C to +125°C ) (Storage) | |||||||
TEMP. COEFFICIENTS | 1000-0014 | Zero < ±0.00035 VDC/°F Sensitivity < ±0.02%/°F |
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