WILKERSON INSTRUMENT CO., INC.

TW301 Potentiometer Position Input
Two-Wire Transmitter

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TW301

TW301
Potentiometer Position Input
Two-Wire Transmitter

$170.00

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Specifications
 
  • Features
  • Description
  • Specifications
  • Dimensions
  • Connections
  • Provides DC Output Proportional to a Potentiometer Position Input
  • Potentiometer values from 1 kilohm to 50 kilohms
  • Low-Drift Chopper-Stabilized Input
  • 50 mm X 50 mm Case
  • NEMA-4 Connection Head and Explosion-Proof Housing Available
  • Low Cost for OEM Applications
  • 5 Year Warranty

The TW301 is a low cost, reliable, potentiometer input, 2-wire transmitter for field or panel mounting in various industrial housings and enclosures. It provides a DC output current proportional to the slide position of a potentiometer.

All Wilkerson products are designed with RFI filters and lightning protection to reduce susceptibility to electrical noise and damage by lightning.  Optional conformal coating of the electronic components makes the TW301 extremely reliable and resistant to the corrosion, moisture and fungus associated with many industrial environments.

The module utilizes a stable 1.2 V power supply to excite the potentiometer. Any value potentiometer from 1 kilohm to 50 kilohms can be used. The output ZERO and SPAN controls are accessible through the top of the case. Terminations are made to screw terminal connectors on the top of the case.

TYPICAL APPLICATIONS
Remote tank level, valve or actuator position data acquisition.

INPUT POTENTIOMETER RESISTANCE
any value from 1 kilohm to 50 kilohms

SPAN ADJUSTMENT
50% to 100% of pot rotation

OFFSET ADJUSTMENT
0 to 50% of pot rotation

INPUT IMPEDANCE
>10 megohms

EXCITATION
1.2 V

OUTPUT RANGE
4/20 mA

MAX LOAD RESISTANCE
Rmax= [(Vsupply - 12V)/.020 mA] kilohms

RESPONSE TIME
100 ms typical

ACCURACY
±0.1% of span

LINEARITY
±0.05% of span

COMMON MODE REJECTION
120 dB, DC to 60 Hz

OPERATING TEMPERATURE
-13°F to 176°F/-25°C to 80°C

TEMPERATURE STABILITY
±0.02% of span/°C max

POWER
12 to 48 VDC, polarity protected

SUPPLY VOLTAGE EFFECT
0.02% of span max, 12 to 48 VDC

TW300 Series Dimension Drawing

PIN 1
PIN 2
PIN 3
PIN 4
PIN 5
Power Supply +
Power Supply -
Potentiometer Excitation
Potentiometer Wiper
Potentiometer Common
Specifications    Manual

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