Thermocouple,Input,Two Wire,Transmitter,Model TW304,Wilkerson Instrument

Thermocouple Input Two Wire Transmitter Model TW304


CONNECTIONS
Power Supply +
Power Supply -
Input +
Input -
(Labeled)
PIN P.S. +
PIN P.S. -
PIN T/C +
PIN T/C -
Thermocouple,Input,Two Wire,Transmitter,Model TW304,Wilkerson Instrument

Thermocouple,Input,Two Wire,Transmitter,Model TW304,Wilkerson Instrument

Features

Thermocouple,Input,Two Wire,Transmitter,Model TW304,Wilkerson Instrument Provides DC Output Proportional to any Thermocouple Input
Thermocouple,Input,Two Wire,Transmitter,Model TW304,Wilkerson Instrument Cold Junction Compensated
Thermocouple,Input,Two Wire,Transmitter,Model TW304,Wilkerson Instrument 4 mV Minimum Input Span
Thermocouple,Input,Two Wire,Transmitter,Model TW304,Wilkerson Instrument Unlimited* Choice of Input Ranges
Thermocouple,Input,Two Wire,Transmitter,Model TW304,Wilkerson Instrument Upscale Burnout Protection
Thermocouple,Input,Two Wire,Transmitter,Model TW304,Wilkerson Instrument Low-Drift Chopper-Stabilized Input
Thermocouple,Input,Two Wire,Transmitter,Model TW304,Wilkerson Instrument NEMA-4 Connection Head Available
Thermocouple,Input,Two Wire,Transmitter,Model TW304,Wilkerson Instrument Low Cost
Thermocouple,Input,Two Wire,Transmitter,Model TW304,Wilkerson Instrument 5 + 5 Year Warranty

Description

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.

Cold junction compensation, low-drift chopper-stabilized amplifiers and filtering and conditioning to reduce susceptibility to transients and noisy operations, provide accurate, trouble free operation. 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 Applications

Remote temperature data acquisition.

Mounting

The TW304 can be mounted in a connection head (TSH-A6L) or on a flat surface using the two 5/32 inch holes provided. The 17/64 inch center hole allows clearance for a 1/4 inch diameter temperature probe.

Specifications

INPUT RANGE
select any type thermocouple
 (min span 4 mV)

OUTPUT RANGE
4/20 mA

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

RESPONSE TIME
150 ms typical

ACCURACY
0.1% of span

COMMON MODE REJECTION
120 dB, DC to 60 Hz

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

TEMPERATURE STABILITY
0.02% of span or 0.025C/C
  whichever is greater

POWER REQUIRED
12 to 48 VDC, Polarity protected

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

 

*Within specified range limits.