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06_07
3. Specications for channel card
GTC200A Series is ammeter that adopted high-performance A/D Converter and Micro-Process with diversified
functions embedded. GTC200A Series is configured in centralized style, comprised of a Common alarm unit and a
Multi-Channel control unit for several detectors, with the Multi channel control unit being connected to each detector.
GTC200A Series is protected by the case of DIN Type, and has 2 types of products such as Panel mount type, Wall
mount type, etc. GTC200A Series has the display function of FND Digital display (PV Value) and the display function of
3-color LED Bar Graphic display (PV and Alarm set value) embedded, accompanied by 3 Instant alarm functions (1st
H/L, 2nd H/L, 3rd H/L) and Trouble alarm.
3.2. Channel Control Unit
ITEMS SPECIFICATION
Input form Analog 4-20mA
Measurement display 4-Digit FND & Bar-graph (32 segment, 3-color LED)
Measuring range 0.000 to 9999 Digital (Arbitrary setting by the user)
Measuring accuracy FND Digital ±1% Full Scale
LED Bar ±1% Full Scale
Input measuring period 100 ms
Alarm setting 3-stage alarm (Arbitrary setting by the user)
Alarm setting display 3 Color bar graphic (Green/Red/Yellow LED)
Alarm display LED bar graphic
Alarm clearing Manual (Common unit)
Self diagnosis Test switch & Reset switch
Control input, output RS-485
Measured output Analog 4-20mA
Alarm output
Breakdown alarm SPDT Relay dry contact signal output
Alarm 1 SPDT Relay dry contact signal output
Alarm 2 SPDT Relay dry contact signal output
Alarm 3 SPDT Relay dry contact signal output
Relay dry contact capacity : AC250V/3A, 30V/3A
Operation power supply DC 24V / 100mA Max
3.3. Power Unit (Option)
ITEMS SPECIFICATION
Input power supply DC. 24V
Output power supply DC. 24V (reserve power supply : DC. 27V / 300mA)
Output power supply display FND Digital display
Main power supply display Green LED display
reserve power supply display Green LED display
reserve power supply monitoring Red LED display
reserve power supply test Test switch for preliminary power switch
reserve power supply Ni-Cd Battery 24V / 600mA(less than 6 circuits)
Upon occurrence of Instant alarm and Trouble alarm, GTC200A Series is displayed as Audible(Buzzer) and
Visual(Alarm LED and Bar graphic LED flashing), and has Max. PV Value holding functions upon occurrence of an
alarm. GTC200A Series allows remote control for alarm clearing, and can perform interlocked control functions as it
has the output for alarm (SPDT Contact). Common alarm unit of GTC200A Series is supplying communication output
(Isolation type RS-485 : Option) to configure Monitoring system such as Gas vision, etc. while each Channel control
unit is supplying outputs for measured values (4~20mA. DC). GTC200A Series is configured with the latest parts,
being equipped with stability and reliability, and is capable of the maximum Expansion (Max. 63 channels) in a given
space.
2. Features
1. Overview
GTC-200A
Instruction Manual
3.1. Common Alarm Unit
ITEMS SPECIFICATION
Input form RS-485
Input measuring period 100ms
Alarm display Audio signal- Audible(Buzzer) and Visual signal- Visual(LED)
Alarm clearing Return switch- Manual (Reset switch)
Control input Outside input(Remote reset) - Buzzer stop/ return function
Measured output Isolation RS-485 modbus(Option)
Alarm output
Buzzer - Buzzer SPST Relay dry contact signal output
Breakdown alarm - SPDT Relay Dry contact signal output
1st alarm - Alarm 1 SPDT Relay dry contact signal output
2nd alarm - Alarm 2 SPDT Relay dry contact signal output
3rd alarm - Alarm 3 SPDT Relay dry contact signal output
* Relay dry contact capacity : AC125V 10A
Operation power supply DC 24V / 100mA Max
■ No. of Channel units for the maximum access to a common unit is 63ea.
Input form
Measurement display
Measuring range
Measuring accuracy
Input measuring period
Alarm setting
Alarm setting display
Alarm display
Alarm clearing
Self diagnosis
Control input, output
Measured output
Alarm output
Operation power supply
