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3-PORT SIGNAL ISOLATOR--------------- ------------------------------------------------------------------------------BP3SI
 
 

  • Input : DC volts, 0/4~20 mA, Ohms, RTD
    Thermocouples, AC Amps, AC volts, load cell etc.
  • Output : DC volts, 0/4~20 mA
  • Supply : 12~36 V DC, 85 ~ 265 V AC / 50/60 hz
  • Input / Output / Supply isolation : 1000 V AC / 1 min,
    250 V AV continuous
  • DINRAIL enclosure
 
GENERAL

BP3SI is a 3 port signal isolator that accepts any one of the common process inputs and generates an isolated current or voltage output. It has exceptionally high accuracy and stability
 
SPECIFICATION          All specifications at ambient of 25° C, unless specified otherwise
 
INPUTS  
Input types Specify any one listed below
Thermocouple B, E, J, K, R, S, T, N, etc.
RTD Pt100, Pt200, Pt1000, 3-wire
DC Voltage 75 mV / 200 mV / 1 V/ 10V/
100V/ 300V/ 800V etc.(FS)
DC Current 0~20 mA, 4~20mA
Resistance 500Ω, 1 KΩ , 2 KΩ , 5 KΩ ,
10KΩ
(FS)
Special 0~1 A AC, 0~5 A AC, 0~250
V AC load cell, etc.
Excitation supply for 10 V DC ± 5%, 30 mA
nominal,
load cell for 350Ω bridge
Bridge Connection 4-wire or 6-wire(with
Provision for remote
sensing)
Transmitter supply 18 V DC for 2- wire
transmitter (provided if input
type is DC current- 4~20 mA)
Input range User specified
ADJUSTMENTS  
Zero, span Multiturn potentiometers
through detachable panel
OUTPUTS  
Output types Current - 0~20mA, 4~20 mA
(Load 600 Ω max) Voltage -
0~1 V DC, 0~10 V DC
(Load 1 mA max)
Input / Output relation RTD - Temperature linear
Other inputs - Voltage
linear(output is proportional
to input signal - no
linearisation of input is
done)
Current limit Current output - 25 mA
Voltage output - 10 mA
ACCURACY  
Input / Output transfer ± 0.1% of span (includes
repeatability,
acccuracy hysterisis & non linearity)
Temperature effect on See Table 1
accuracy  
Accuracy for different See Table 1
inputs  
ISOLATION  
Mutual isolation between 1KV AC RMS / 1 minute,
input / output / supply 250 V AC RMS continuous
POWER SUPPLY  
Supply voltage 12~36 V DC
85~265 V AC / DC, 50/60 hz
ENCLOSURE  
Material ABS plastic
Dimensions (in mm) 75(H) x 55(W) x 110(D)
Mounting Snap on for 35mm DIN rail
to DIN 46277
Connection, single/ ≤2.5mm2, AWG 14
stranded wires  
TEMPERATURE, HUMIDITY  
Ambient, Operation 0 to60 °C
Relative humidity 0 ~95%
   
   
 

Table 1

Input Range Accuracy
(% of span)
Temperature
effect on accuracy
(%of span/°C)
DC Current 0~20 mA, 4~20mA ± 0.1 ± 0.01
DC Current 0~1A DC, 0~5A DC ± 0.25 ± 0.01
DC Voltage Upto 10 V DC ± 0.1 ± 0.01
DC Voltage >10V DC ± 0.25 ± 0.01
AC Current 0~1 A AC, 0~5 A AC ± 0.5 ± 0.01
AC Voltage Any (<500 V AC) ± 0.5 ± 0.01
RTD, Pt100, Pt 50, etc. Any ± 0.1 ± 0.01
Thermocouple Any ± 0.1 of span ± thermocouple non-linearity error ± 0.01
Load Cell 5mV~50mV (Excitation supply : 10V DC) ± 0.1 ± 0.02 for 12~36 V DC supply ± 0.04 for 85~265 V AC/DCsupply
 
 
CONNECTION DIAGRAMS
 
BP3SI can be supplied with any combination of input/output/supply. Examples & options are given below
 
 
 
 
 
 
 
 
   
 

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