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Hitachi

Hitachi High-Technologies GLOBAL

Unitrol E Series

A highly reliable equipment that is also used in an atomic power plant, the Unitrol E series is suitable for small-scale plants that requires high reliability such as boiler control, etc.

Features

Series Models

Controller class

  • Programmable indicating controller (VI88MA)
  • Single-function type controller (VI88SA)
  • Indication alarm setter (VIA88-2)
  • Integraph (VS88B)
  • Manual adjuster (VIM88) and so on.

Converter class

  • Universal computing units (VC88-MFA, VC-68MFA)
  • Computing units (34 series)
    Acceleration computing units (VC-34A) / multiplication and division computing units (VC-34MD) / limiter (VC-34LM) / temperature and pressure correction arithmetic unit (VC-34C) / selector (VC-34S) / time lag computing units (VC-34TL ) / pulse converter (VC-34VF) / function generator (VC-34FG) (arbitrary function for generating and for seat-partial flumes) / square root computing units (VC-34R)
  • Converter (34 series)
    Temperature converter (ETR-34T, ETR-34C) / potentiometer converter (ETR-34P, VC-34P) / signal converter (VC-34VI) / isolator (VC-34IC) / distributor (EDB-34L, 34R , 34D)
  • Alarm setter (34 series)

Specifications

E Series (Panel Gauge) Product Specification-1
ModelVI88MA Type
Instructions controller
VI88SA Type
Instructions controller
VC88-MFA Type
Universal computing unit
Function Programmable functions:
Control operation 6 Types
General operation 32 Types
Fixed functions:
Can be selected from 15 types of control operation block
Programmable functions:
General operation 32 types
Input Signal Analog Input (Note 1)
1-5V DC 5 Points
Digital Input:
Non-Voltage Contact 4 Points
Analog Input (Note 1)
1-5V DC 3 Points
Digital Input:
Non-Voltage Contact 1 Points
Analog Input:
1-5V DC 4 Points
Digital Input:
Non-Voltage Contact 4 Points
Output Signal Analog Output:
4-20mA DC
or 1-5V 1 Points
1-5V DC 2 Points
Digital Output:
Transistor Contact 6 Points
or relay contact 3 Points
Analog Output:
4-20mA DC
or 1-5V 1 Points
1-5V DC 2 Points
Digital Output:
Transistor Contact 3 Points
or relay contact 3 Points
Analog Output:
4-20mA DC
or 1-5V 1 Points
1-5V DC 2 Points
Digital Output:
Transistor Contact 6 Points
Instruction/Display LED Bar/Numerical Display LED Bar/Numerical Display LED Bar/Numerical Display
Power Supply Voltage/ Power Consumption 100V AC 14VA
or 24V DC 0.35A
100V AC 14VA
or 24V DC 0.35A
100V AC 14VA
or 24V DC 0.4A
E Series (Panel Gauge) Product Specification-2
ModelVIM88 Type Manual indicating controllerVIA88-2 Type Instruction alarm setterVS88B Type Integraph
Function Automatic or manual adjustment
Auto-manual mode switch:
Surface or external switch
1 Input: 2 Points alarm output Analog Integration (can calculate square root)
Input Signal Analog Input (Note 1)
1-5V DC 2 Points
Digital Input:
Non-voltage contact 1 Point
Analog Input (Note 1)
1-5V DC 1 Points
Analog Input (Note 1)
1-5V DC 1 Points
Output Signal Analog Output:
4-20mA DC or 1-5V 1Point
1-5V DC 2 Point
Digital Output:
Relay Contact 1 Point
Digital Output:
Relay Contact 2 Point
Digital Output:
Pulse Output 1 Point
Instruction/Display LED Bar LED Bar LCD Numerical Display
Power Supply Voltage / Power Consumption 100V AC 14VA
or 24V DC 0.3A
100V AC 10VA
or 24V DC 0.2A
100V AC 11VA
or 24V DC 0.23A

Note 1:  The following options below are available for analog input (input of measurement value)

Unitroll E Series Input Specification (optional)
Input SpecificationApplicable Product
4-20mA DC VI88MA,VI88SA,VIM88,VIA88-2,VS88B
4-20mA DC (Two-wire system transmitter with 240V DC Power) VI88MA,VI88SA,VIM88,VIA88-2
4-20mA DC (Two-wire system transmitter with 24V DC power and square root calculator) VI88MA,VI88SA,VIM88,VIA88-2
Thermocouple Input VI88MA,VI88SA,VIM88,VIA88-2
Resistance temperature detectors (Three- wire system) VI88MA,VI88SA,VIM88,VIA88-2
E Series (Converter) Product Specification-2
ModelVC-34VI Type
Signal Converter
VC-34IC Type
Isolator
VC-34VF Type
Voltage / Pulse Converter
VC-34FG Type
Function Generator (Linearizer)
Input Signal Voltage:0.5-5V DC Span
Current:5-50mA DC Span
1-5V DC
or 4-20mA
1-5V DC
or 4-20mA
1-5V DC
or 4-20mA
Output Signal 1-5V DC 2 Points
or 4-20mA DC 1 Point
1-5V DC 2 Points
or 4-20mA DC 1 Point
1-5V DC
or 4-20mA
1-5V DC
or 4-20mA
Conversion Accuracy ±0.2%FS ±0.2%FS ±0.5%FS ±0.5%FS(10 Near the Main wire)
Power Supply Voltage /  Power Consumption 100V AC 4VA
or
24V DC 0.08A
100V AC 3.5VA
or
24V DC 0.19A
100V AC 7.5VA
or
24V DC 0.19A
100V AC 7.5VA
or
24V DC 0.19A
E Series (Functional Unit) Product Specification-2
ModelVC-68MFA Type Universal computing unitX-ECVA Type
Electrical Positioner
Function Programmable:General calculation 32 Types -
Input Signal Analog Input: 1-5V DC 4 Points
Digital Input:Non Contact 2 Points
Valve Opening Setting Signal:4-20mA DC
Valve Opening Feedback Signal:4-20mA DC
or slide resistor 100-1000Ωc
Output Signal Analog Output:1-5V DC 2 Point
or 4-20mA DC or 1-5V 1 Point
Digital Output:Relay Contact 2 Points
Control Output:output connection relay connection
Number of output, 1 point each for close and open
Opening Display Output:4-20mA DC 1 Point
Power Supply Voltage / Power Consumption 100V AC 14VA or 24V DC 0.3A 100V AC 12VA or 24V DC 0.2A
E Series (Electrical Box / Others) Product Specification-2
ModelEIS-34 Type
Signal generator (Dial Setting)
VC-34L Type
Limiter
VC-34S Type
Selector
Input Signal - 1-5V DC or 4-20mA 1-5V DC or 4-20mA
Number of output 3 Points
Output Signal 1-5V DC or 4-20mA
Number of output 3 Points
1-5V DC 2 Points
or 4-20mA DC 1 Point
1-5V DC 2 Points
or 4-20mA DC 1 Point
Conversion Accuracy ±1.5%FS ±0.5%FS ±0.5%FS
Power Supply Voltage / Power Consumption 100V AC 6.5VA
or 24V DC 0.15A
100V AC 7.5VA
or 24V DC 0.19A
100V AC 7.5VA
or 24V DC 0.19A
E Series (Conversion Unit) Product Specification-1
ModelETR-34T Type
Temperature
Conversion
(Thermocouple / mV Input)
ETR-34C Type
Temperature Conversion (Resistance temperature detectors )
ETR-34P Type
Potentiometer converter
VT-34P Type
Potentiometer converter
Input Signal Thermocouple:R, K, J, T, E
mV Input:2.5-100mV
RTD:Pt100 Three- wire system 10°Cspan above Span 50-200Ω Four-wire system Span 200-2000Ω Three- wire system
Output Signal 1-5V DC 2 Points
or 4-20mA DC 1 Point
1-5V DC 2 Points
or 4-20mA DC 1 Point
1-5V DC 2 Points
or 4-20mA DC 1 Point
Span 200-2000Ω Three- wire system
Conversion Accuracy mV input (no linearizer)
±0.2%FS(5mV span above)
±10µV(5mV span below)
Thermocouple Input (including linearization errors)
±0.5%FS(5mV span above)
±25µV(5mV span below)
±0.25%FS(50°C span above)
±0.125°C(50°C span below)
±0.25%FS ±0.25%FS
Power Supply, Voltage / Power Consumption 100V AC4.5VA or 24V DC 0.12A 100V AC 4VA or 24V DC 0.1A 100V AC 4VA or 24V DC 0.1A 100V AC 4VA or 24V DC 0.1A
E Series (Conversion Unit) Product Specification-1
ModelVC-34R Type
Square root computing units
VC-34A Type
Acceleration computing units
VC-34MD Type
Multiplication and Division computing units
VC-34C Type
Temperature and pressure correction arithmetic unit
VC-34TL Type
Time log computing unit
Input Signal 1-5V DC
or 4-20mA
1-5V DC
or 4-20mA
number of inputs 3 Points
1-5V DC
or 4-20mA
number of inputs 3 Points
1-5V DC
or 4-20mA
number of inputs 3 Points
1-5V DC
or 4-20mA
Output Signal 1-5V DC 2 Points
or
4-20mA DC 1 Points
1-5V DC 2 Points
or
4-20mA DC 1 Points
1-5V DC 2 Points
or
4-20mA DC 1 Points
1-5V DC 2 Points
or
4-20mA DC 1 Points
1-5V DC 2 Points
or
4-20mA DC 1 Points
Conversion Accuracy ±0.5%FS ±0.5%FS ±0.5%FS ±1.0%FS ±0.5%FS
Power Supply Voltage / Power Consumption 100V AC 4.5VA or 24V DC 0.12A 100V AC 7.5VA or 24V DC 0.19A 100V AC 7.5VA or 24V DC 0.19A 100V AC 7.5VA or 24V DC 0.19A 100V AC 7.5VA or 24V DC 0.19A
E Series (2 wire transmitter distributor) Product Specification
ModelEDB-34L Type
Distributor
EDB-34R Type
Distributor (Square root Type)
EDB-34D Type
Distributor (For 2 loop)
Input Signal 4-20mA DC
(Transmitter power supply 24V DC)
4-20mA DC (Transmitter power supply 24V DC) 4-20mA DC (Transmitter power supply 24V DC)
Output Signal 1-5V DC 2 Points or 4-20mA DC 1 Point 1-5V DC 2 Points or 4-20mA DC 1 Point 1-5V DC or 4-20mA 1 Point (Every Loop)
Conversion Accuracy ±0.2%FS ±0.5%FS ±0.1%FS
Power Supply Voltage / Power Consumption 100V AC4.5VA or 24V DC 0.12A 100V AC 5VA or 24V DC 0.15A 100V AC 4.5VA or 24V DC 0.12A
E Series (Power Box / Others) Product Specification-1
ModelEVS052 Type
Power Box
EVS103 Type
Power Box
EVS304A Type
Power Box
Power Consumption 100,110,115V AC 50/60Hz
28VA
100,110,115V AC 50/60Hz
65VA
100,110,115V AC 50/60Hz
190VA
Output Voltage / Output Current 24V DC 0.5A 24V DC 1A 24V DC 3A
Stability ±1%FS / Power voltage ±10% changes ±1%FS / Power voltage ±10% changes ±1%FS / Power voltage ±10% changes