CTI GG-2 Installation And Operation Manual Download Page 12

12

GG-2

Maintenance

Specifications

All gas detection systems should be calibrated with certified calibration 

gas once every six months. At this interval, all alarm functions and outputs 

should be tested, verified and documented.

If sensor span or zero cannot be adjusted, the sensor may be approaching 

its end of life and must be replaced. Keep an operation log of all 

maintenance, calibrations and alarm events.

To clean the controller, use a mild cleaning solution and soft cloth.

In the unlikely event that the fuse needs to be replaced use a 3A, 250V, 

5x20mm, slow-blow type fuse.

The operator interface has a backup lithium coin battery to run the real-time 

clock and retain configuration memory while the system is powered down. A 

low battery is indicated by a battery symbol on the display. If a low battery is 

indicated, replace old battery with a Type CR2450 Li Coin Cell.

Input Power Requirements:

100-240 VAC, 1.3 A 50/60 Hz.

Output 24 VDC power available for sensors and audio/visual devices:

1.2A @ 40°C (104°F).

0.8A @ 50°C (122°F).

Dimensions: 

11.3” high x 9.3” wide x 7” deep.

Weight: 

6 lbs

Enclosure: 

Fiberglass Reinforced Polyester NEMA 4X, IP 66, with 

polyurethane gasket. Continuous stainless steel hinge. Captive screws in lid. 

For non-classified areas.

Temperature Range: 

0°F to +122°F

Humidity Range: 

0-95% RH condensing (100% intermittent), with proper 

conduit seals.

Sensor Inputs: 

(2) 4/20 mA, 350 Ohm input impedance.

Analog Outputs:

(2) Linear 4/20 mA (max input impedance: 700 Ohms).

Relay Outputs:

(6) SPDT, Form C dry contacts.

8 A @ 24 VDC or 10 A @ 240 VAC.

Terminal Block Plugs (Field Wiring):

26-12 AWG, torque 4 lbs-in.

User Interface: 

LCD illuminated screen. Graphic display screen: 128 x 64 

pixels. 8 lines x 22 characters. 16 sealed membrane switches.

Certification:

SGS Listed: Conforms to UL 61010-1

Certified to CSA C22.2 No. 61010-1

Summary of Contents for GG-2

Page 1: ...Installation and Operation Manual GG 2 2 CHANNEL GAS DETECTION CONTROL PANEL...

Page 2: ...y in the manner described in this manual If the equipment is used in a manner not specified by Calibration Technologies the protection provided by the equipment may be impaired This equipment should b...

Page 3: ...ng 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 oper...

Page 4: ...r They are electrically connected to the controller via three conductor cables The onboard relays have 10 second on off time delays to prevent unnecessary cycling during a fault warning or alarm condi...

Page 5: ...sure cover to prevent debris from falling into the equipment To maintain NEMA 4X IP 66 rating of the enclosure conduit fittings of the same rating or better must be used AC Power Wiring Power should b...

Page 6: ...0 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 equ...

Page 7: ...xposed 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 Sil...

Page 8: ...8 GG 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...

Page 9: ...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 oper...

Page 10: ...hanumeric keys Enter number 1 or 2 to configure that channel repeat same steps for both channels State Allows for turning on or off a channel For example if a sensor is removed from the system that ch...

Page 11: ...tch A latched relay must be cleared by pressing the RESET button once the gas has cleared Horn Allows horn relay and buzzer to activate during a Warn condition Alarm Setpoint Use this field to change...

Page 12: ...ttery is indicated replace old battery with a Type CR2450 Li Coin Cell Input Power Requirements 100 240 VAC 1 3 A 50 60 Hz Output 24 VDC power available for sensors and audio visual devices 1 2A 40 C...

Page 13: ...t by any person other than an authorized dealer or contractor or the installation of unapproved parts on the product The obligations set forth in this warranty are conditional on a proper storage inst...

Page 14: ...14 GG 2...

Page 15: ...15 GG 2...

Page 16: ...ctiengineering com 866 394 5861 GG2 DOC1 1 20211103...

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