Ntron Gasenz Operating Manual

The

Ambient Oxygen

Monitor

With

Part Number: 05-680

Electrochemical Sensor

User Instruction Manual

F/W Issue V233P

Issue Date:

01/10/2018

Rev 1.2

1. Introduction ................................................................................................................... 3

1.1 Gasenz ................................. ......................................... .................. ............................3

1.2 Operation ................................................................................. ................................... 4

1.2.1 %Vol Sensor ........................ ................................................................................ 5

2. Specification .................................................................................................................. 6

2.1 Status Indicator.........................................................................................................7

3. Mounting and Dimensions ........................... .......................................................... ....8

3.1.1 Field Connections ............................................................................................... 9

3.1.2 Field Connections -DC Supply-Option. Fig.3 ..................................... .......... 10

3.1.3 Field Connections -DC Supply-Option. Fig.4 ................................................. ....11

3.1.4 Mounting Locations .............................................................................................. 12

3.1.5 Analogue Output ........................................................... .................. ......................14

4. Software Features ................................................................. ..................................... 15

4.1 Password .............................................. ........................................................... .........1 5

4.2 Menu options ........................ ...................................................................................16

Menu Structure .......................................... ................... .................................................... 17

4.2.1 Menu 1-Calibrate Sensor ................. .................... ....................................... .....18

4.2.2 Menu 2 - Analogue output FSD...................................... ................................19

4.2.3 Menu 3 - Set 4 mA output .......................... ..................................................... 19

4.2.4 Menu 4 - Set

4.2.5 Menu 5 - Analogue Output Simulation ..........................................................20

4.2.6 Menu 6 - Factory Restore ......................................................... ...................... 21

4.2.7 Menu 8 - Diagnostics.......................................................................... .....22

4.2.8 Menu 14 - New sensor data........................ .................................................... 22

4.2.9 Menu 17 - Rela y

......................................... .................. .................................... 23

4.2.10 Menu 18 - Alarm levels.................................................................................... 24

4.2.11 Menu 19 - Alarm hysteresis .................................................. ..........................25

4.2.12 Menu

5. Routine Maintenance & Servicing ................................ .......................................... 26

5.1 Routine Inspection and Maintenance ..................................................................... 26

mA output ............................................................................. 20

................................................................................. ............................2 5

1. I

NTRODUCTION

1.1 Gasenz

The Gasenz is a wall or surface mounting device has for the monitoring of % Oxygen volume levels in an Ambient environment.

Key design features are:

•

Sturdy compact enclosure

•

Status indication by means of a two-lamp beacon and sounder

unit.

•

Simple keypad calibration facility (utilising onboard LCD display).

•

4-20mA current source output for gas level indication (10-bit

resolution).

•

Input voltage range, 85-264VAC. PCB mounted screw terminals

for all connections. Option of 24VDC only.

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1.2 Operation

When power is first applied to the Gasenz an initialisation procedure is performed as follows:

•

All the display segments are displayed

•

The software version number is displayed

•

The company name is displayed

•

The sensor type is displayed

•

The display then shows the gas level.

The Gasenz is now operational

Note: The Gasenz Oxygen Monitor is based around the Microx series of Oxygen Analyser controllers and contains some Menu programming options which are not relevant to the Gasenz product and its mode of operation. Such menu's and information are highlighted in this user manual as 'Customer Access Not Permitted' and other various warnings against adjustment of such menu options. Please observe these prohibitions to ensure correct operation of the Gasenz Oxygen Monitor. The Gasenz Oxygen Monitor is supplied factory configured and calibrated for correct operation, and apart from sensor replacement and periodic calibration, should require no further user intervention.

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1.2.1 %Vol Sensor

A % Volume sensor is an integral part of the Gasenz Monitor. The % Volume measurement range of the Gasenz Monito combination is factory set at O to25%, with calibration at 2O.9% 02. (Ambient). The sensor is disposable, and so requires replacement periodically. (See maintenance section 5.1 in this user manual)

r/s

ensor

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Supply

85-264VA

Outp

uts

Sensor Input

Relays

uses

Additional Features

2. S

PECI

FIC

ATION

Input Voltage

Options:

140 mA at 24VDC nominal , all relays energised, 20

Supply current:

Analogue Output: 4-20mA analogue output (10-bit resolution)

No of Channels: 1

Sensor %Vol oxygen 0-25% 18 Months life approx.

mA drawn on current loop.

+30mA for integral Sounder Beacon

(Replacement Sensor Part No. 01-335)

. Option of 24 VDC Only.

#1 or 2 (For

user connection)

Fuse

Display: 4 Digit, 7 Segment Display.

Keypad: 4-Button Keypad

Status Indicator Two-Lamp Light Tower with Sounder

Single pole change over. Rating 6 Amps 250 v AC

500mA anti-surge on board fuse for circuit protection.

Red Lamp LED-Alarm (+ Sounder 80db Green Lamp LED-Normal

/Re

ady

@0.

# Depending on Alarm configuration requirements. See page 6.

3Mtr)

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2.1 Status Indicator

A Two- Lamp High Intensity LED Light Tower provides indication of Normal 0perational/Ready status or condition (Green) and Alarm condition(Red). The Alarm condition is triggered by a pre-settable gas measurement level being reached. At the same time as the Red lamp is illuminated, the Sounder also operates providing the user with both audible and visual indication of the alarm condition.

(For setting alarm levels-see page 24)

The Light Tower can be pre-wired for High and Low 02 indication or for Low 02 indication only.

Typical 0perational Settings: High 02=23% rising alarm. Low 02= 19% falling alarm.

# If High and Low level alarm functionality is required then only 0ne user interface relay is available for external connection by the user. If Low level alarm functionality only is required, then Two user interface relays remain available for the user to connect to.

Note: The Gasenz will be supplied configured with standard alarm level settings unless otherwise requested by the user. For details of standard settings and other options please see the alarm and Relay configuration section within this manual.

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250mm

3. M

Fig.1 shows the overall dimensions of the Gasenz.

OUNTING AND DIMENSIONS

Overall dimensions 250mm(H) x 110mm(W) x 93mm(D). (including Cable Glands)

Fig.1

Control internal Wiring

Module and

Fig.2

85-264VAC C

onnection Terminal Strip

supply

Sensor and internal wiring

Mounting lugs-one per corner

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3.1.1 Field Connections

All connections to the module are provided in the form of screw terminals. Access is gained by opening the Gasenz enclosure to reveal the terminal connector strips on the rear of the control module.

NOTE: Confirm the Voltage supply option of the Gasenz before connecting power.(24VDC or 85-264VAC)

Take care with Mains Voltage when Connecting and operating the Monitor. The Door should always be in the Closed position when operating.

See Fig's 3 and 4 on the following pages for user field connection wiring.

The User is to make all field connections in suitable cable to local regulation codes and taking into account the power requirements of the Gasenz as detailed in section 2 (Specification) of this manual.

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+ 19 hidden pages