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Data Sheet - Series M General-Capability Position Transducer

Information on 3D Displacement Sensors











































Power Rating 1.0 W at 104° F (40° C); 50 VDC / 12 mA max 1.5 W min at 104° F (40° C); 50 VDC / 12 mA max
Independent Linearity Error ±2.00% max per VRCI-P-100A ±0.25% max per VRCI-P-100A
Insulation Resistance 100 Mohms min at 500 VDC 100 Mohms min at 500 VDC
Resolution infinite signal 0.044% (21.3-inch (541-mm) range, 0.034% (43.0-inch (1092-mm) range), 0.018% (85.0-inch (2159-mm) range)
Operating Temperature -4° to 185° F (-20° to 85° C) -4° to 185° F (-20° to 85° C)
Shock / Vibration 25 g for 6 ms / 10 to 2000 Hz at 5 g 25 g for 6 ms / 10 to 2000 Hz at 5 g


EMBEDDED DIGITAL SENSOR SPECIFICATIONS (incremental optical encoder)
Item 134.4 line/in. (5.29 line/mm) Type 3674 line/in. (144 line/mm) Type
Power Requirement 5 ±0.50 VDC 5 ±0.50 VDC
Supply Current 29 mA max at 5 VDC 110 mA max at 5 VDC
Logic Output open collector and 3.3 Kohm pull-up resistor (TTL) line driver that sources and sinks 20 mA
Resolution 134.4 line/inch (5.29 line/mm) (resolution is stated in quadrature pulses (X4 mode)) 3674 line/inch (144 line/mm) (resolution is stated in quadrature pulses (X4 mode))
Output 2-bit (quadrature) code, A leads B by 90° with cable extraction 2-bit (quadrature) code, A leads B by 90° with cable extraction; complements with and without index available optionally
Operating Temperature -4° to 185° F (-20° to 85° C) -4° to 185° F (-20° to 85° C)
Shock / Vibration 25 g for 6 ms / 5 to 2000 Hz, 5 g 25 g for 11 ms / 50 to 500 Hz at 5 g

Electrical Outputs - Voltage Conditioner

VOLTAGE CONDITIONER (unregulated input)
Item Unipolar (0-5 VDC, 0-10 VDC, Etc.) Bipolar (±5 VDC, ±10 VDC, Etc.)
Supply Voltage 7 to 40 VDC for 0-5 VDC
12 to 40 VDC for 0-10 VDC		 12 to 40 VDC for ±5 VDC
22 to 40 VDC for ±10 VDC
Supply Current 20 mA max 20 mA max
Reverse Polarity Protection yes yes
Increasing/Decreasing Output Options yes yes
Output Signal (User Adjustable) 0-5 VDC, 0-10 VDC, 5-0 VDC, 10-0 VDC, and user-adjustable values (adjustable output via 2 x trim potentiometers) ±5 VDC, ±10 VDC, and user-adjustable values (adjustable output via 2 x trim potentiometers)
Zero Adjust 0% to 100% of range 0% to 100% of range
Span Adjust 20% to 65% at 7 VDC supply
5% to 95% at 40 VDC supply		 20% to 65% at 7 VDC supply
5% to 95% at 40 VDC supply
Insulation Resistance 1000 Mohms min 1000 Mohms min
Resolution infinite signal infinite signal
Thermal Coefficient ±0.01%/°C max ±0.01%/°C max

To change the output signal's range, follow these steps:

  1. Remove the 2X sealing screws labeled Z and S to reveal the zero and span trim potentiometers.
  2. Extend the displacement cable to the desired start location and adjust the zero trim potentiometer until you get the desired electrical output.
  3. Extend the displacement cable to the desired finish location and adjust the span trim potentiometer until you get the desired electrical output.
  4. Repeat steps 2 and 3.
  5. Replaced the 2X sealing screws.

Electrical Outputs - 4-20 mA

4-20 mA (2-wire current transmitter)
Item Value
Supply Voltage 12 to 40 VDC with reverse polarity protection
Supply Current 35 mA max
Output Signal 4-20 mA (user adjustable) with increasing and decreasing output options
Zero Adjust 0 to 5% of range (adjustable output via 2 x trim potentiometers)
Span Adjust 50 to 100% of range (adjustable output via 2 x trim potentiometers)
Insulation Resistance 1000 Mohms min at 750 Vrms
Resolution infinite signal
Thermal Coefficient ±0.01%/°C max
A Note on Load Resistance in 4-20 mA Current Loops - The maximum load resistance or loop resistance is the maximum resistance of all the loads that are connected in series with the circuit. This includes all instrumentation equipment such as power supply and multimeter. The maximum load resistance (RLmax) depends on 2 factors: the voltage supply (Vps) and the maximum loop current (Iloop). For the Series 6 4-20 mA circuit, RLmax = (Vps - 11.6) / Iloop

Example:

    Vps = 24 V
    Iloop = 30 mA
    RLmax = (24 - 11.6) / 30 = 0.413 Kohms

To change the output signal's range, follow these steps:

  1. Remove the 2X sealing screws labeled Z and S to reveal the zero and span trim potentiometers.
  2. Extend the displacement cable to the desired start location and adjust the zero trim potentiometer until you get the desired electrical output.
  3. Extend the displacement cable to the desired finish location and adjust the span trim potentiometer until you get the desired electrical output.
  4. Repeat steps 2 and 3.
  5. Replaced the 2X sealing screws.

Other Specifications

Case / Drum / Optional Mounting Base Materials engineering-grade plastic / engineering-grade plastic / stainless steel
Displacement Cable 0.018 inch (0.4572 mm) diameter, 7-by-7 stranded stainless steel, 40-lb (178-N) min breaking strength
Displacement Cable Hardware 301250 circular thimble (brass or stainless steel)
Compatible Mounting Hardware A quantity of 3 self-tapping screws (roughly equivalent to No. 6 screws in size) are supplied for fixed mounting directly into the transducer housing in any 3 of the 6 mounting holes located on the transducer housing. These screws may be used to mount the sensor from the back side through panels up to 0.125 inch (3.175 mm) thick (recommended clearance-hole size in the mounting panel is .145 inch (3.683 mm) minimum). These screws are pre-installed on transducers with the mounting bases. The mounting holes and slots on the sensor are sized to accept alternative user-provided fasteners through the body up to No. 4 or 3 mm in size. See Technical Documents below for detailed information on installation options.
Mass 8 oz (227 g) nominal
Environmental Sealing NEMA 12 / IP 53
Estimated Lifetime 100,000 full-stroke cycles min