CTI GG-2 Bedienungsanleitung

Installation and Operation Manual

GG-2

-CHANNEL GAS DETECTION CONTROL PANEL

2GG-2

Warning

Use this product only in the manner described in this manual.

If the equipment is used in a manner not specied by Calibration

Technologies, the protection provided by the equipment may be impaired.

This equipment should be installed by qualied personnel.

GG-2 3

Table of Contents

For technical support, contact:

Calibration Technologies

920 N Trade Winds Pkwy

Columbia, MO 65201

phone: 866-394-5861

email: [email protected]

website: ctiengineering.com

General description ..............................4

Installation ......................................4

Locating the GG2 ...............................4

Installation guidelines .......................... 4

Wiring ........................................5

Operation .......................................7

Start-up.......................................8

Keypad .......................................8

LCD Operator Interface.......................... 8

Menu Tree ....................................9

Navigating the Menu ............................ 9

Normal operating mode ..................... 9

Channel view...............................9

Main menu ................................ 9

Alarm log ..................................9

Calibration mode ........................... 9

Last calibration date ........................10

  Congmenu ..............................10

Clock.....................................11

Contrast ..................................11

Relay test .................................11

Maintenance ...................................12

Specications ...................................12

Warranty .......................................13

4GG-2

General Description Installation

The GG-2 control panel is a two-channel controller designed to accept two

4/20 mA input signals. It has a 24 VDC regulated power supply to power all

industry standard 4/20 mA gas transmitters and audible/visual devices.

The GG-2 control panel provides continuous real-time monitoring of each

sensor.

The backlit LCD display provides an at-a-glance status of gas concentrations

and alarms.

The GG-2 control panel is assembled into a wall mounted enclosure

designedfornon-classiedlocations.Thegassensors(oneortwo)are

installedatspeciclocationswheregasistobedetected,upto1,500feet

from the controller. They are electrically connected to the controller via three

conductor cables.

Theonboardrelayshave10secondon/otimedelaystoprevent

unnecessary cycling during a fault, warning or alarm condition.

All operator functions are performed from the keypad on the front of the

panel.

Locating the GG-2 Control Panel

The important consideration when installing GG-2 control panel is that it

must be easily accessible for operating personnel.

Installation Guidelines:

Mount controller on a solid surface with minimal vibration. If mounting on a

wall with studs, the mounting screws should be screwed into the studs.

Mountcontrollerthrutheholesinthemountinganges.

Mount controller in a general-purpose location only. Do not install in a

hazardous environment.

Mount controller away from electromagnetic interference.

Protect controller from physical damage.

GG-2

Wiring

• Electrical wiring must comply with all applicable codes.

Wiring Guidelines:

• Usestranded,copperwire/cablewithaminimumof75°Crating(167°F).

• Always use three-conductor, insulated, stranded, shielded copper cable

for all sensor cables.

• Do not pull sensor wiring with AC power cables. This can cause electrical

interference.

• Be sure to land the shield conductors of the sensor cables at the shield

terminals of the sensor connectors.

• Use only the existing conduit hole for connections to the sensor.

• Bonding between metallic conduit connections is not automatic with the

non-conductive enclosure. Separate bonding must be provided.

• During installation, cover conduit holes and close the enclosure cover to

prevent debris from falling into the equipment.

• TomaintainNEMA4X/IP66ratingoftheenclosure,conduitttingsofthe

same rating or better must be used.

AC Power Wiring:

• Power should be provided by a dedicated 15A circuit breaker. It is

recommended that the circuit breaker be located near the equipment,

and clearly marked as the disconnect for the GG-6 controller.

• 100-240 VAC, 1.3 A, 50/60 HZ

Relay Wiring:

• AC wiring must be run in separate conduit from the sensor cables.

• All relays have Form C dry contacts, and are rated 8 Amps @ 24 VDC or 10

@240VAC(drycontactsrequireexternalpower).

• Only the fault relay is normally energized. It will de-energize to the alarm

state upon sensor fault or loss of power.

• Each relay has a status LED to show the state of the relay. During normal

operation,allLEDsareoexceptforthegreenFaultLED.

Common Relay Outputs

Individual Relay Outputs

6GG-2

Sensor Wiring: 4/20 mA, 350 Ohm input impedance.

• Refer to sensor manual for cable recommendations.

• Usually20/3shieldedcable(Belden8772orequivalent).

• Length of cable should not exceed 1,500 feet.

Analog Output Wiring:

• The analog output is 4/20 mA signal for monitoring by plant PLC or other

analog input equipment. It is powered by the GG-2 Controller.

• Use 2-conductor shielded cable compatible with receiving equipment.

GG-2

Operation

Start-up

Beforeapplyingpower,makeanalcheckofallwiringforcontinuity,

shorts, grounds, etc. It is usually best to disconnect external alarms and

other equipment from the controller until the initial start-up procedures are

completed.

After initial power-up, allow at least 12 hours for the sensors to stabilize

before calibrating. Because sensors are normally located at a distance from

the controller, the test time required and accuracy of the response checks

will be improved if two people perform the start-up procedures and use

radio contact.

The GG-2 control panel has a two-minute power-up delay during which

the relays are held in their normal non-alarm state, after the application of

power or a momentary power loss. This allows the sensors time to stabilize

and disables the alarm functions.

Start-Up Test:

1)Onepersonexposeseachsensortotargetgas.

2)Thesecondpersonstaysatthecontrolunittodeterminethateachsensor,

when exposed to the gas, is connected to the proper input and responds,

causing appropriate alarm functions.

Keypad

All operator functions are performed from the membrane switches on the

front of the panel.

Silence Key: Pressing the Silence key will reset the horn relay and silence

the buzzer, until the next event occurs. The horn relay is triggered by a fault

or alarm condition, and can be programmed to trigger during a warning

condition.

Reset: Pressing the Reset key will attempt to reset any latched relays. Any

latched relays will not reset as long as there’s an existing warning or alarm

condition. The latch-relay function can be enabled for each relay in the

Congurationmenu.

LCD Operator Interface

Key Functions: Below is a list of the common key functions used for the LCD

operations:

MENU to enter main menu

ESC to go back to previous menu/sub-menu

ENTER  tomodifytheprogrammingelds

PREV to go back to previous screen

NEXT to advance to next screen

YES/NO  whenpromptedandtoacceptcongurationchanges

Alphanumeric for menu selections and to enter values and text

Up/Down tonavigatedrop-downlistsduringconguration

Ch1 Ch2

PPM

NH3

0.0

NH3

POWERUP

8GG-2

Chl CAL Mode

Alarm

Warn

ENGINE ROOM

Chl CAL Mode

Alarm

Warn

ENGINE ROOM

Chl CAL Mode

Alarm

Warn

ENGINE ROOM

Chl CAL Mode

Ch2

ENGINE ROOM

249

249 249

PPM

NH3

PPM

NH3

PPM

NH3

Menu Tree

GG-2

Navigating the Menu

Normal Operating Mode

After system power-up, the normal

operating screen will be displayed. It

provides at-a-glance system status,

showing real-time gas concentrations. In

this example, Channel 1 gas concentration

has exceeded the warn and alarm

setpoints. Channel 2 indicates a fault due

to faulty wiring or a sensor signal less

than 1 mA. The Warn, Alarm and Fault

indicationswillashuntiltheconditions

are cleared. PREV or NEXT to go to Channel

View screens MENU to go to main menu

screen.

Channel View

Channel view displays only the status of

the channel being viewed. It also displays

the room/zone location. Warn, Alarm

andFaultindicationswillashuntilthe

conditions are cleared. PREV or NEXT to

view normal operating screen or next

channel view screen. MENU to go to main

menu screen.

An over-range condition is indicated by

ashingofthefull-scalereading.Thisalso

indicates that the sensor output is over 20

mA.

Main Menu

The main menu can be accessed by

pressing the menu key at any time. Use

the alpha-numeric keys to select a sub-

menu, or NEXT to advance to the next

menu screen. ESC to return to the normal

operating screen.

Main Menu (cont.)

Alarm Log

The alarm log captures every event

in chronological order, with the most

recenteventdisplayedrst.10,000

events can be stored, with the oldest

events being automatically truncated,

once the alarm log is full. Time/date

stamp and event number are also

displayed. PREV or NEXT to scroll.

Hold button in for turbo-scroll. ESC

to return to normal operating screen.

MENU to return to main menu screen.

Cal Mode

Calibration mode allows for sensor

calibration and maintenance by

holding the relays in their normal

state, preventing unwanted alarms. If

the unit is left in Cal Mode, it will stay

active for 48 hours and then return

to normal operating mode. Make

sure the concentration values have

dropped below the warning and alarm

setpoints before exiting. ESC to exit

from Calibration mode and return to

normal operating mode. The analog

outputsarenotaectedbycalibration

mode and are allowed to increase to

full scale.

10 GG-2

Last CAL Date

The last cal date shows the date and time

at which the system was last calibrated.

When six months has transpired from

thelastcaldate,aCalDueagwill

appear indicating the sensors need to be

calibrated., Holding the 6 key, and then

pressing the 7 key will reset the Cal Date,

once the sensors are calibrated.

CONFIG Menu

TheCongurationmenuispassword

protected to prevent unauthorized

personnel from making programming

changes to the system. Enter the

password(last4digitsofCTItoll-free

phonenumber)withthealphanumeric

keys.

Enternumber1or2tocongurethat

channel(repeatsamestepsforboth

channels).

State:Allowsforturningonoroa

channel. For example, if a sensor is

removed from the system, that channel

should be changed to NOT ACTIVE.

Tochangethisprogrammingeld,press

ENTERtohighlighttheeld.

Use up or down arrows to select item.

Press ENTER to select item.

Range: Allows adjustment of sensor zero

andfullscalerange.(usealphanumerickeys

toentervalues)

Unit/Gas:Usetheseeldstochangetheunit

of measurement and gas type.

WarningSetpoint:Usethiseldtochange

the default warning setpoint

Direction:Usethiseldtochangethe

default direction setting. For example,

oxygen level monitoring may require

downscale alarming.

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