Gemco 953A/D/SSI VMAX LDT Catalog Page

Mobile Equipment and Stationary Processing Systems demand absolute accuracy and reliability in linear position feedback . . . Regardless.

Innovation, proprietary technology and decades of experience were the key to the development of our 953 VMAX Linear Displacement Transducer.

We know the manufacturing challenges of today are extreme, so we designed and built a sensor to meet and exceed these demands, regardless of the application or environment.

Introducing the 953 VMAX LDT features:

• High Vibration Resistance to 30 Gs (lab tested)

• High Shock Resistance to 1000 Gs (lab tested)

• Wide Input Power Range of 7 to 30 VDC (no need to specify different models)

• High Accuracy with High Resolution

• Applications Include All Mobile/Stationary Equipment, or Both with the Same Sensor

• Sensor Lengths up to 300”

• Durability and Reliability Exceeds Competitive Offerings

• Tri-Color Diagnostic LED Indicator

• Gives Quick Indication on the Status of the LDT

• Very Low Power Consumption, 1 Watt Typical, Allows Direct Connection to Display and Control Interface Modules

• Removable Cartridge for Hydraulic Applications

• Digital Output, Start/Stop, Variable Pulse (PWM), Control Pulse

• SSI (Synchronous Serial Interface), 24, 25 or 26 Bit, Binary or Gray Code, Position Update

• Analog Output, 0-10 VDC, +/-10 VDC, 0-5 VDC, +/-5 VDC, 4-20mA

• Contaminant Resistant

• IP68 Rated

• Optional Stainless Steel Cover and Connector

• Multi-Magnet Option (Digital Start/Stop only)

953A/D/SSI VMAX™ LDT

Applications Include

Absolute linear position feedback for equipment and process automation in extreme applications.

Process Automation

• Steel Mills, Primary and Secondary Metals Processing that includes Stamping, Roll Forming and Die-Casting

• Hydraulic & Pneumatic Cylinders

• Adaptive Housing Options to Withstand Extreme Temperatures and Contaminants (Gemco 950MD units)

Mobile Equipment

• Lumber and Forest Products Processing

• Refuse Collection, Vehicles, Recycling and Compaction

• Off Road

953

Removable

Cartridge

Stationary Machines

• Sawmill, Plastic, Rubber, Injection Molding, Extrusion Equipment, Material Handling, Nonwoven, Dancers and Accumulators

953SSI Connector Interface

953D Connector Interface

953A Connector Interface

Sensor Housing and Mounting Hex

Displacement

Dead Band

Null Zone

Enclosure Rating

953SSI Resolution

953D Resolution

953A Resolution

Internal Output

6 Pin 12mm Euro micro, Integral cable ass'y, 7 Pin or 8 Pin DIN

6 Pin 12mm Euro micro, Integral cable ass'y, 6 Pin or 8 Pin DIN

5 Pin 12mm Euro micro, Integral cable ass'y, 6 Pin or 8 Pin DIN

Body length 3.2”, hex base 1 3/4” dia., 3/4”x16x1” thread. Aluminum housing standard, stainless steel optional.

1” to 300"

2.50" (63.5 mm) standard

2.00" (50.8 mm) standard

IP68, IEC 600529

English or Metric Units Metric: 1, 5, 10, 20 micron (5 micron standard) English: .00005", .0001", .0005", .001" Consult Factory for Others.

Controller Dependant

0.00006” 16-Bit

*One watt typical at 1ms interrogation time with no recirculations. Faster interrogation times and/or recirculations increase power consumption.

953A/D/SSI VMAX™ LDT

Speciﬁ cations

Shock

Vibration

953SSI Update Time

953D Update Time

953A Update Time

Guide Tube Pressure

Approvals

Input Voltage

Current Draw

953A Zero & Span Adjustability

953D Repeatability 953A Repeatability 953SSI Repeatability

953SSI Measured Variables

NOTE:

Speci cations subject to change and are based on a typical 48” stroke.

1000 Gs (lab tested) IEC 60068-2-27

30 Gs (lab tested) IEC 60068-2-6

Measuring Length 300 750 1000 2000 5000mm Measurements/ sec.

Controller Dependant

< 2mS Typical

5,000 psi continuous (10,000 psi spike)

CE (EMC)

7 to 30 VDC

1 watt typical*, 40mA at 24 VDC typical

Factory set at Null & Dead Band locations Field re-settable at any location within active stroke

Equal to Resolution of Controller Equal to Resolution Equal to Output Resolution

Single Magnet Displacement, Consult Factory for Velocity or Differential Operation

3.7k 3.0k 2.3k 1.2k 0.5k

953SSI Output

953D Output

953A Output

Voltage Current

953A Current Output

953A Voltage Output

Hysteresis

Non-linearity

Storage Temperature

Operating Temperature

Head Guide Tube

Diagnostics

24, 25 or 26 Bit, Binary or Gray Code (optional parity and error bit), Position Update

RS = RS422 Start/Stop Pulse VP = RS422 Variable Pulse (PWM), Internal/External Interrogation CP = RS422 Control Pulse TP = TTL Start/Stop Pulse

0-10 VDC, +/-10 VDC, 0-5 VDC, +/-5 VDC 4-20mA

Max Load Resistance: 500 Ohms

Minimum Load Resistance: 2K Ohm Output Current: Guaranteed 5mA minimum Analog Ripple: 1 mV maximum

0.001”

< 0.01% or +/- 0.005”, whichever is greater, (+/- 0.002 Typical)

-40° to 221° F (-40° to 105° C)

-40° to 185° F ( -40° to 85° C)

-40° to 221° F (-40° to 105° C)

ri-Color LED beside connector/cable exit,

T See 'LED Output Summary Table' on page 39

SSI (Synchronous Serial Interface)

Displacement value is encoded into a 24, 25 or 26 Bit format and transmitted at high speeds. Synchronization in a closed loop system is made easy. A clock pulse train

953

from a controller is used to gate out sensor data: one bit of position data is transmitted to the controller per one clock pulse received by the sensor. The absolute position data is continually updated by the sensor and converted by the shift register into serial information. The sensors fulﬁ ll all requirements to the SSI standard for absolute encoders.

S Connector Style

5 or 6 Pin Micro, 12mm Euro

M Connector Style

6 Pin DIN, Fits MTS D60

7 Pin DIN, Fits MTS D70 (for SSI only)

Stainless Steel

Cover and Connector

8 Pin DIN, Fits Balluff S32

B Connector Style

C Connector Style

Integral Cable Assembly

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