RTD,Input,Field,Rangeable,Transmitter,Model DM4001,Wilkerson Instrument

RTD Input Field Rangeable Transmitter Model DM4001


TERMINAL CONNECTIONS
Power AC L1 or DC +
Power AC L2 or DC -
Current Supply +
Input +
Input -
Current Supply -
Output +
Output -
(Terminal Labeled)
L1
L2
1
2
3
4
Output +
Output -
RTD,Input,Field,Rangeable,Transmitter,Model DM4001,Wilkerson Instrument

RTD,Input,Field,Rangeable,Transmitter,Model DM4001,Wilkerson Instrument

Features

RTD,Input,Field,Rangeable,Transmitter,Model DM4001,Wilkerson Instrument Spans from 8C to 1024C
RTD,Input,Field,Rangeable,Transmitter,Model DM4001,Wilkerson Instrument Linearized for Platinum RTDs
RTD,Input,Field,Rangeable,Transmitter,Model DM4001,Wilkerson Instrument Provides a Fully Isolated DC Output Proportional to RTD Input
RTD,Input,Field,Rangeable,Transmitter,Model DM4001,Wilkerson Instrument 2, 3, or 4 wire connections
RTD,Input,Field,Rangeable,Transmitter,Model DM4001,Wilkerson Instrument User-Settable Input and Output Ranges
RTD,Input,Field,Rangeable,Transmitter,Model DM4001,Wilkerson Instrument Fully Labeled Jumper Positions for Easy Range Settings
RTD,Input,Field,Rangeable,Transmitter,Model DM4001,Wilkerson Instrument Connections and Ranging Readily Accessible From The Front
RTD,Input,Field,Rangeable,Transmitter,Model DM4001,Wilkerson Instrument Plug-in Terminal Blocks
RTD,Input,Field,Rangeable,Transmitter,Model DM4001,Wilkerson Instrument Standard DIN rail Mount With Easy Snap-on Snap-off
RTD,Input,Field,Rangeable,Transmitter,Model DM4001,Wilkerson Instrument Choice of Power Options
RTD,Input,Field,Rangeable,Transmitter,Model DM4001,Wilkerson Instrument User Write-on Label
RTD,Input,Field,Rangeable,Transmitter,Model DM4001,Wilkerson Instrument Permanent Warranty
RTD,Input,Field,Rangeable,Transmitter,Model DM4001,Wilkerson Instrument UL, cUL Recognized

Description

The DM4001 provides an isolated voltage or current output proportional to temperature as measured with an RTD.

The product can measure 2, 3, or 4 wire resistance elements. The 3 wire configuration provides compensation for lead wire  resistance.  The 4 wire configuration provides true measurement of the resistance element without lead wire error.

Linearization is provided for .00385 and .00393 alpha platinum resistance elements.

The DM4001 includes filtering and conditioning to reduce susceptibility to transients and noisy operations.  It utilizes a feedback VCO to develop a pulse train with a duty cycle proportional to the input signal amplitude.  This pulse train is coupled through a pulse transformer to the output circuitry, where the duty cycle data is converted to a proportional DC output level.

Connections are made via two 4-pin plug-in terminal blocks. These terminal blocks allow the product to be removed without unwiring the connections.

Typical Applications

Useful for temperature monitoring, control and data acquisition.

Mounting

The module mounts on a standard H-35 DIN rail. A spring latch holds it in place. The module is demounted by using a screw driver to release the latch at the bottom of the module.

Specifications

INPUT
RTD Types
  100 & 1000 ohm Pt.
    .00385 or .00393 alpha
  10 ohm Cu.
  2, 3, or 4 wire

Excitation
  10 ohm 10 mA
  100 ohm 1 mA
  1000 ohm .1 mA

Span Ranges (C)
  8, 16, 32, 64, 128, 256, 512, 1024

Offset Select
  0%, 20%, 40%, 60% of span

Span Adjustment
  +5% to -55% of selected range

Zero Adjustment
  30% of selected offset

Linearization Error
  <.2%

Open RTD Protection
  Upscale or Downscale

POWER
Wattage 2.5 W maximum

AC (Standard)
  115 VAC 10%, 50/60 Hz
  230 VAC 10%, 50/60 Hz
  24 VAC  10%, 50/60 Hz

DC (Optional)
  24 VDC      (21-32 VDC)

APPROVALS:
UL, cUL Certified

OUTPUT
Voltage
0/.25
0/1
1/5
0/5
0/10
-5/5
-10/10
Current (mA)
0/1
0/4
4/20
0/20

OUTPUT LOGIC
Normal or Reverse Acting

DRIVE CAPABILITY
Voltage 
  5 mA
Current
  >24 V compliance

ACCURACY
0.1% of span

OUTPUT RIPPLE
<0.1% of full scale
  (peak to peak)

OPERATING TEMPERATURE
 
14F to 140F
-10C to  60C

TEMPERATURE STABILITY
0.01 % of span perC

ISOLATION
Resistance
  >500 megohms
Voltage Rating
  >1000 VAC Sine wave

COMMON MODE REJECTION
>100 dB, DC to 60 Hz

 


TERMINAL CONNECTIONS

Power AC L1 or DC +
Power AC L2 or DC -
Current Supply +
Input +
Input -
Current Supply -
Output +
Output -

(Terminal Labeled)

L1
L2
1
2
3
4
Output +
Output -

NOTE:
 For 3-wire RTD Jumper 1 and 2
 For 2-wire RTD Jumper 1 and 2, and Jumper 3 and 4