www.gastron.com
16
_
17
GTC-200F
Instruction Manual
NO
NAME
DESCRIPTIONS
11
Alarm-2 LED
Upon occurrence of the 2nd alarm in channel unit, Alarm 2 LED is lighted. Alarm 2
LED is lighted when the 2nd alarm value is reached upon execution of test function
in the channel unit.
12
Alarm-1 LED
Upon occurrence of the 1st alarm in channel unit, Alarm 1 LED is lighted. Alarm 1
LED is lighted when the 1st alarm value is reached upon execution of test function in
the channel unit.
13
3 color bar graphic LED
3 Color bar graphic LED continues to display measured values and alarm setting
values together with FND display. Bar graphic LED is lighted in green when the
measured value is less than the 1st Alarm, in orange when it is more than the 1st Alarm
and less than the 2nd Alarm, and in red when it is more than the 2nd Alarm.
When the measured value is more than the alarm setting value, Bar graphic is held at
the maximum value, and Bar graphic is displayed in blinking state for the alarm.
14
Reset key
Functions of Channel unit such as Alarm clearing, Self test clearing, Program setting
clearing, etc. are performed.
15
Down key
Arbitrary values can be selected by using "▲", "▼" Keys after each mode is selected
with Func. Key. When "▲", "▼" Key is being pushed for a given time in the mode
requiring many changes in setting value, the setting values are changed fast,
16
Test key
When Test switch is pushed, the mode of executing self-diagnosis function is
entered into.
It is a key where the measured value FND blinks, and Alarm operation state can be
checked in Channel unit and Common unit by using "▲", "▼" Key to adjust measured
values that are blinking.
Diagnosis is cleared by pushing once of the Reset key in each channel.
17
Function key
Function key is a key where Data values are inputted by conversion and selection of
functions such as setting of alarm values, setting of alarm methods, setting of Dead
band and of delay operation for alarm , etc.
18
Up key
Arbitrary values can be selected by using "▲", "▼" Keys after each mode is selected
with Func. Key. When "▲", "▼" Key is being pushed for a given time in the mode
requiring many changes in setting value, the setting values are changed fast,
19
Power ON/OFF switch
Power ON/OFF switch for Channel unit.
20
Front cover screw
Screw for mounting of Channel unit
21
Terminal PCB
Channel Unit Terminal PCB
22
Terminal PCB screw
Screw for mounting of Channel Unit Terminal PC
23
Connector
Output connector for signals
6. Installation
[Table 4. Description of density display component]
6.1. Separation of Cover
■ Unfasten 14 places displayed by arrows in the above figure by
using a 6mm hexagonal Wrench.
■ (Caution) No one other than approved users or those of
the headquarters in charge of installation and repair should never
been allowed to install in the field or open or operate the cover for
the installed Control Unit. Otherwise, serious damages to life and
property such as fire or explosion accidents may be inflicted.
■ (Caution ) Make sure to shut off power supply for operation after
checking whether any explosive GAS remains or there is any
flammable substance in the surroundings.
6.2. Power supply and signal configuration for Channel Unit
■ Configurations for channel Unit, Common Unit and power Unit are as shown in the following figure with
the channel Unit allowing the maximum configuration of 63 ea.
■ The power unit is installed only when the battery is used.
■ When not using the power unit, connect DC24V directly to the connector (CN6) of the common unit in the power
supply. (Power unit is optional.)
[Figure 5. Separation of Cover]
[Figure 6. Power supply and signal configuration for Channel Unit]
5. Name and description of each part
