WILKERSON INSTRUMENT CO., INC.

TW304 Thermocouple Input
Two-Wire Transmitter

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TW304

TW304
Thermocouple Input
Two-Wire Transmitter

$158.00

The following information must be entered to complete your order:
See "Specifications" below for Input range limits.

Input: Zero Scale
Full Scale
Units
  Thermocouple Type
  Open Sensor Response

Quantity:

 

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DR1 DIN-Rail, 35mm Symmetrical, 39 inches (1 meter) $18.00
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Specifications
 
  • Features
  • Description
  • Specifications
  • Dimensions
  • Connections
  • Provides DC Output Proportional to any Thermocouple Input
  • Cold Junction Compensated
  • 5 mV Minimum Input Span
  • Unlimited Choice of Input Ranges (Within specified range limits)
  • 50 mm X 50 mm Case
  • Upscale Burnout Protection
  • Low-Drift Chopper Stabilized Input
  • NEMA-4 Connection Head and Explosion-Proof Housing Available
  • Low Cost
  • 5 Year Warranty

The TW304 is a low cost, reliable, thermocouple input, 2-wire transmitter for field or panel mounting in various industrial housings and enclosures. It provides a DC output current proportional to any thermocouple input signal.

All Wilkerson products are designed with RFI filters and lightning protection to reduce susceptibility to electrical noise and damage by lightning. Optional coating of the electronic components makes the TW304 extremely reliable and resistant to the corrosion, moisture and fungus associated with many industrial environments.

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. Cold junction compensation is provided by a solid state temperature sensor embedded in the thermocouple terminal strip. Upscale burnout protection is provided as standard. In the event the thermocouple opens, the transmitter output will go offscale high.

TYPICAL APPLICATION
Remote temperature data acquisition.

INPUT RANGE
select any type thermocouple (min span 5 mV)

OUTPUT RANGE
4/20 mA

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

RESPONSE TIME
150 ms typical

ACCURACY
±0.1% 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 or 0.025°C/°C, whichever is greater

POWER REQUIRED
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 -
T/C Input+
No Connection
T/C Input -
Specifications    Manual

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