STATUS SCIENTIFIC CONTROLS FGD14 User manual

STATUS SCIENTIFIC CONTROLS

Issue:

2.9

Date:

16/5/19

Firmware:

V8.0.x

FGD14 Single Channel

Environmental Monitor.

STATUS SCIENTIFIC CONTROLS LTD.

Hermitage Lane Industrial Estate,

Kings Mill Way,

Mansfield,

Nottinghamshire.

NG18 5ER

England

Tel

Fax

Internet

: 01623 651381

: 01623 421063

: www.status-scientific.com

STATUS SCIENTIFIC CONTROLS

FGD14 Environmental Monitor

TD06/026

Issue:

2.9

Change note:

1882

Page 1

1Introduction 3

1.1 SENSORS.....................................................................................................3

1.1.1 Infrared .......................................................................................3

1.1.2 Oxygen .......................................................................................3

1.1.3 Toxic...........................................................................................3

2Installation 4

2.1 SITING THE ‘FGD14’.....................................................................................4

2.2 POWER SUPPLY OPTIONS .............................................................................4

2.2.1 Mains Powered...........................................................................4

2.2.2 DC Powered................................................................................4

2.3 WIRE TERMINATION ......................................................................................5

2.3.1 Remote Indicator Connection......................................................6

3Menu System 7

3.1 DISPLAY UNIT............................................................................................... 7

3.2MENU MODE SELECTION...............................................................................7

Alarm Test..................................................................................................9

3.3CALIBRATION................................................................................................ 9

3.4.1 Calibration Gas Flow Rates......................................................... 9

3.4.2 Zero Sensor.............................................................................. 10

3.4.3 Span Sensor............................................................................. 11

3.4.4 Calibration Factors....................................................................11

3.4.5 Set Sensor FSD........................................................................ 12

3.4.6 Set Display Mode......................................................................12

3.4.7 Display Firmware Version..........................................................13

3.4.8 Restore..................................................................................... 13

3.4.9 View Engineer/Diagnostics Data ............................................... 14

3.4.10 Sensor Frequency..................................................................... 14

3.4.11 Cross Reference....................................................................... 15

3.4.12 Set Relay 1 Mode...................................................................... 16

3.4.13 Set Relay 2 Mode...................................................................... 16

3.4.14 Set Alarm Level 1...................................................................... 17

3.4.15 Set Alarm Level 2...................................................................... 17

3.4.16 Sounder Enable ........................................................................ 17

3.4.17 Set Alarm Hysteresis................................................................. 18

3.4‘FGD14’ INDICATIONS.................................................................................19

3.5SENSOR REPLACEMENT.............................................................................. 21

4Trouble Shooting 22

5Specification 24

5.1 HYDROCARBON.......................................................................................... 24

5.2 CARBON DIOXIDE ....................................................................................... 25

STATUS SCIENTIFIC CONTROLS

FGD14 Environmental Monitor

TD06/026

Issue:

2.9

Change note:

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Page 2

5.3 OXYGEN ....................................................................................................26

5.4 TOXIC........................................................................................................ 26

STATUS SCIENTIFIC CONTROLS

FGD14 Environmental Monitor

TD06/026

Issue:

2.9

Change note:

1882

Page 3

1 INTRODUCTION

The FGD14 is a self-contained unit designed to detect environmental conditions by

fitting suitable sensors. It also provides the user with local and remote indication of

alarm / fault conditions.

The FGD14 can be fitted with a display unit that allows non-intrusive calibration /

configuration via concealed push buttons and local readout of gas levels.

A remote keypad can be temporarily fitted to gain access to the calibration /

configuration data when the unit is supplied without a display.

The FGD14 is fitted with two relays, which are linked to user definable alarm set

points.

The FGD14 may be connected to an interface unit that will allow direct connection to a

PC.

1.1 Sensors

The unit can be fitted with a range of sensor modules allowing it to be tailored to

individual needs.

1.1.1 Infrared

The infrared sensors use the proven non-dispersive infrared principle (NDIR) to detect

and monitor the presence of gases. This technique relies upon the target gas having a

unique, well-defined absorption signature within the infrared region of the

electromagnetic spectrum.

There are currently two IR sensors: -

1) Carbon Dioxide

2) Hydrocarbon.

1.1.2 Oxygen

The oxygen type fitted is the ‘4’ series type.

1.1.3 Toxic

The toxic type fitted is the ‘4’ series 3 electrode type.

STATUS SCIENTIFIC CONTROLS

FGD14 Environmental Monitor

TD06/026

Issue:

2.9

Change note:

1882

Page 4

2 INSTALLATION

IMPORTANT

It is important that the instrument has been installed and powered for a minimum of 10

minutes before it is used to monitor the gases concentration in the environment.

2.1 Siting the ‘FGD14’

Mounting positions for detector heads need to be considered individually, some points

for consideration are:

•Sensors for detecting gases that are lighter than air should be positioned at a

high level.

•Sensors for detection of gases heavier than air should be located as low as

practically possible.

•Ensure all sensors are mounted to allow calibration and maintenance to be

carried out as required.

•Ensure the proposed site will not interfere with movement of existing

equipment, e.g. cranes, doors etc

•Install all cables neatly and securely.

•Avoid siting the sensors adjacent to potential sources of radio frequency

interference, e.g. radio transmitters, control switchgear, motors etc.

•Avoid mounting the instrument where it may be subjected to sudden transients

in ambient temperature (e.g. above a heater/radiator).

2.2 Power Supply Options

The FGD14 is available with one of two power supply options.

2.2.1 Mains Powered

A universal power supply is fitted that operates in the range of 85-265Vac, 47-400 Hz.

This allows worldwide use without the need to configure for location specific mains

voltage requirements.

2.2.2 DC Powered

Alternatively a DC power supply can be installed capable of accepting voltages in the

range of 8-30V DC.

STATUS SCIENTIFIC CONTROLS

FGD14 Environmental Monitor

TD06/026

Issue:

2.9

Change note:

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Page 5

2.3 Wire Termination

All connections should be made according to the diagram below. It is advised that

‘Bootlace Ferrules’ or ‘flat blade crimps’ be used for tidy and reliable connections of

wires into the Detector Head connectors.

Note: The yellow mains cover must be removed to gain access to the mains input

connector.

Isolate the mains supply before removing cover.

Ensure that the protective cover is securely replaced after terminating the mains input

Note:

When a DC Power Supply is fitted within the FGD14, the terminals marked L and N on

the above diagram will be identified as +Ve and –Ve.

Mains Fuse

Mains

Connector

Terminals for

connection of

Remote indicator

unit

Power

Supply Fuse

Sensor

module

Remote

keypad

connector

Ext. 0V

Ext.5V

Pwr LED

Alm

LED

Buzzer

COM

Relay 2

Relay 1

Status Scientific Controls

E N L

STATUS SCIENTIFIC CONTROLS

FGD14 Environmental Monitor

TD06/026

Issue:

2.9

Change note:

1882

Page 6

2.3.1 Remote Indicator Connection

To gain access to the terminals within the remote indicator assembly, remove the

screw located at each corner of the assembly when viewed from below (4 in total).

The units should then be wired as follows:

FGD14

Remote Indicator

Ext5V

Pwr LED

PWR

Alm

ALM

Buzzer

BUZ

A cable tie is provided within the remote indicator assembly to strain relieve the

terminals.

PWR

ALM

BUZ

Ext. 0V

Ext.5V

Pwr LED

Alm

LED

Buzzer

COM

Relay 2

Relay 1

E N L

STATUS SCIENTIFIC CONTROLS

FGD14 Environmental Monitor

TD06/026

Issue:

2.9

Change note:

1882

Page 7

3 MENU SYSTEM

Important

Whenever the menu system is entered the instrument will cease to measure

current gas levels. However normal operation is always returned following a

period of keypad inactivity (or when the menu system is exited).

3.1 Display Unit

In order to gain access to the calibration switches and test points, release the screw

situated between the letters A and T of the chrome STATUS label on the Detector

Head front panel. The screw does not need to be completely removed, only release it

far enough so that the STATUS label can rotate revealing the calibration switches. The

buttons are designated as follows:

3.2 Menu Mode Selection

Several calibration modes exist in the detector head and these are accessible via the

instruments simple menu system. To select a calibration mode follow this procedure:

•Press the MENU button and C: 1 appears on the display.

•Press UP or DOWN until the required calibration mode is displayed on the

screen.

•Press ENTER to select the calibration mode.

•To exit the calibration mode press MENU.

While the instrument is in a calibration mode –any data displayed on the screen will

alternate between the cal number and the reading.

The following features are available via the ‘FGD14’ menu system: -

Cal number

Function

Enabled

Section

Zero Sensor

Yes

3.3.2

Span Sensor

Yes

3.3.3

Set Sensor F

Yes

3.3.5

Set Display Mode

Yes

3.3.6

Display Firmware version

Yes

3.3.7

Restore

Yes

3.3.8

View Engineer/Diagnostics Data

Yes

3.3.9

Sensor Frequency

Yes

3.3.10

Set Relay 1 Mode

Yes

3.3.12

UP DOWN ENTER MENU

STATUS SCIENTIFIC CONTROLS

FGD14 Environmental Monitor

TD06/026

Issue:

2.9

Change note:

1882

Page 8

Set Relay 2 Mode

Yes

3.3.13

Set Alarm Level 1

Yes

3.3.14

Set Alarm Level 2

Yes

3.3.15

Sounder enable

Yes

3.3.16

Alarm hysteresis

Yes

3.3.17

Note: The MENU numbers have gaps, this is to maintain compatibility with

other products that have different features.

STATUS SCIENTIFIC CONTROLS

FGD14 Environmental Monitor

TD06/026

Issue:

2.9

Change note:

1882

Page 9

Alarm Test

The FGD14 is equipped with an alarm test function. During alarm the relays, Leds and

sounder will operate, see section 3.4

In order to gain access to the alarm test switch see section 3.1.

When the FGD14 is operating normally press the UP button to activate the alarm

system. The alarm will continue to operate whilst the UP button is pressed and for a

further 5 seconds when it is released.

3.3 Calibration

The infrared sensors used within the Status Scientific Controls ‘FGD14’ Detector

Heads do not respond linearly with respect to gas levels to which they are exposed.

The FGD firmware contains complex mathematical formulae to allow a linear response

to be calculated and indicated on the instrument display.

Care should be taken to ensure that calibration procedures are followed and any notes

included are read and understood. Failure to adhere with the recommendations within

this manual may seriously impair the instruments ability to accurately indicate the gas

levels to which it is being exposed.

3.3.1 Calibration Gas Flow Rates

Most gas sensors including the infrared sensors are sensitive to pressure transients

and therefore it is important that the flow rate of gas into the sensor housing is not

excessive during calibrations. Care must also be taken to ensure the exhaust from the

sensor housing is not restricted. The recommended flow rate of calibration gases is

500 - 750cc/min.

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