DC,Input,Isolated,Field,Rangeable,Two,Wire,Transmitter,Model SR2101,Wilkerson Instrument

DC Input Isolated Field Rangeable Two Wire Transmitter Model SR2101


ORDERING INFORMATION
SR2101, ( )
| (examples)
| 0/10 V
| 1/5  V
| -1/1  V
| 4/20 mA
| Input Range

Example: SR2101,0/10V

DC,Input,Isolated,Field,Rangeable,Two,Wire,Transmitter,Model SR2101,Wilkerson Instrument Catalogue
DC,Input,Isolated,Field,Rangeable,Two,Wire,Transmitter,Model SR2101,Wilkerson Instrument Manual



Features
DC,Input,Isolated,Field,Rangeable,Two,Wire,Transmitter,Model SR2101,Wilkerson Instrument Provides DC Output Proportional to a DC Voltage or Current Input
DC,Input,Isolated,Field,Rangeable,Two,Wire,Transmitter,Model SR2101,Wilkerson Instrument Fully Isolated Input/Output
DC,Input,Isolated,Field,Rangeable,Two,Wire,Transmitter,Model SR2101,Wilkerson Instrument Unlimited
DC,Input,Isolated,Field,Rangeable,Two,Wire,Transmitter,Model SR2101,Wilkerson Instrument Choice of Input Ranges via Interchangeable Range Cards
DC,Input,Isolated,Field,Rangeable,Two,Wire,Transmitter,Model SR2101,Wilkerson Instrument Reverse Polarity-Protected
DC,Input,Isolated,Field,Rangeable,Two,Wire,Transmitter,Model SR2101,Wilkerson Instrument Test Points for Loop Current Monitoring Without Breaking Loop Circuit
DC,Input,Isolated,Field,Rangeable,Two,Wire,Transmitter,Model SR2101,Wilkerson Instrument 50 mm Diameter Case - 33 mm Mounting Hole Spacing
DC,Input,Isolated,Field,Rangeable,Two,Wire,Transmitter,Model SR2101,Wilkerson Instrument NEMA-4 and Explosion-Proof Connection Heads Available
DC,Input,Isolated,Field,Rangeable,Two,Wire,Transmitter,Model SR2101,Wilkerson Instrument Low Cost
DC,Input,Isolated,Field,Rangeable,Two,Wire,Transmitter,Model SR2101,Wilkerson Instrument 5 + 5 Year Warranty


description

The SR2101 is a low-cost, reliable, DC input two-wire transmitter for field or panel mounting in various industrial housings and enclosures. It provides a DC output current (4/20 mA) proportional to a voltage or current input.  The output is galvanically isolated from the input.

The SR2101 includes filtering and conditioning to reduce susceptibility to transients and noisy operations.  It uses 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 4/20 mADC output level.  A plug-in range card permits user ranging to the required voltage or current input range.  The output ZERO and SPAN controls are accessible through the top of the case.  Zero is adjustable 20% and span +5/-55%.  Terminations are made to screw  terminal connectors on top of the case.

Test points located on the SR2101 front panel allow monitoring of loop current value, using a milliammeter, without breaking the loop current.

Typical Application

Remote data acquisition.  Voltage to current conversion and isolation. Elimination of ground loops and common mode signals.

Mounting

The SR2101 can be mounted in a connection head (TSH-A6L), explosion-proof housing (XJAY), or on a flat surface using the two 4.5 mm diameter mounting holes provided. Standard 33 mm hole center spacing allows for mounting in most connection heads. The 5.08 mm center hole allows clearance for input wiring.  An optional DIN-Rail mounting kit is available (DMP2000).

Specifications

INPUT RANGE
Voltage
  any range between 128 V max
  (minimum full scale span 16 mV)
Current
  (internal shunt)
  any range between 0.1 A max
  (minimum full scale span 10 A)

OUTPUT RANGE
4/20 mA
  Current limited = 28 mA

RESPONSE TIME
- Step Change
150 ms for 99% of final value

OFFSET CANCEL
can cancel any offset from
-100% to +100% of span

INPUT IMPEDANCE
V In < 1 V: > 10 megohms
V In > 1 V: >  1  megohm

I In: range dependent:

Current Input:
Input Shunt Value:

0/1   mA
0/5   mA
4/20  mA
10/50  mA
0/100 mA

100.0 ohms
49.9 ohms
61.9 ohms
20.0 ohms
20.0 ohms
COMMON MODE REJECTION
120 dB, DC to 60 Hz

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

MAX LOAD RESISTANCE (kilohms)
=[(V supply - 10)/20 mA]

TEMPERATURE STABILITY
0.015% of span perC

LINEARITY
Better than 0.05% of span

ACCURACY
0.1% of span

POWER
10-36 VDC, polarity protected

ISOLATION, OUTPUT TO INPUT
1000 Volts RMS sinewave

SUPPLY VOLTAGE EFFECT
0.02% of span max, 10 to 36 V

 

*Within specified range limits