Henan Oceanus Import & Export OC-F08 Operating Manual

OC-F08

Fixed gas detector

Operating Manual

Henan Oceanus

Notice：

1、The personnel for operating and testing the gas detector should

firstly read the Operating manual. Only when according to our company

operating manual to use the gas detector, the device could normally

work.

2、If repair the gas detector or replace the parts, should be operated

by the professional guidance.

3、If users repair the gas detector or replace some parts not

according to our manual, our company will not be responsible for the

maintenance.

4、Explosion proof film and the Waterproof breathable film should

be cleaned or replaced regularly, or will affect the measuring sensitivity.

5、The usage of our company gas detector also should be according

to the rules of related department.

6、Fixed gas detector should be calibrated 6 months; but for some

sensor, we suggest calibrate every 3 months.

7、The sensor is the core parts of gas detector, if the detecting

environment with heavy smoke, humidity, dust, etc, please firstly do the

filtering pretreatment, then connect the gas detector , or will damage the

sensor.

8、For the Electrochemical sensor gas detector, please not expose it

in high gas concentration environment, this will reduce the sensor

working life or make the sensor poisoning.

9、If testing the gas in pipeline, please control the flow rate between

160~250ml/min, or the measurement will not stable.

一、Description：

OC-F08 fixed gas detector designed with the original imported

sensor, Catalytic combustion sensor for combustible gas,

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Electrochemical sensor for the Oxygen and Toxic gas, NDIR infrared

sensor for the Carbon Dioxide gas and Methane, PID sensor for the

VOCs. Designed with the dashboard display interface and three color

backlight; Data, fault, alarm display directly; Circuit board with four

layer wiring, also with the explosion proof design; Signal output

optional of the 4~20mA, RS485, 0~5V, 0~10V, 200~1000Hz, relay

output; Available for the DCS, PLC, or our control system; With high

sensitivity, quick response, high anti-interference, stable signal.

OC-F08 series fixed gas detector could be used for many

applications, including of the petroleum refinery, chemical plants, LPG

station, boiler room, gas station, paint spray booth, and other place need

to inspection safety.

1.1、Structural

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1.2、Safety notice

 Higher or lower Oxygen concentration both will affect the

combustible gas inspection data.

 The atmospheric pressure mutation will affect the O2 gas detector

data.

 The vapor of silicone compound will damage the Catalytic

combustion sensor, so please the detecting environment no this

compounds.

 In the process of usage, please keep the air inlet clean, or will display

lower data.

 Please do not disassemble.

 Please not put gas detector under the high temperature and humidity,

also the strong static electric place.

 Please not use any corrosive liquid to clean the parts of gas detector.

 The shell should be earthed reliably

 If need to replace any parts, please contact manufacturer to solve the

fault.

 The installation, operation and maintenance should be according to

the manual, GB3836.13-1997, GB3836.15-2000, GB3836.16-2006,

GB50257:1996.

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二、 Installation

A. Site installation

B . Installation and size

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2.0、Internal connection：

C. Internal connection

From left to right the terminal is:

1、 “RS485” is RS-485 interface：“A” “B” are RS-485signal A

and signal B。

2、 “POWER” and 4~20mA output interface：“4~20mA” is

4~20mA signal output，“VDD” is 24V positive terminal, “GND”

is 24V negative terminal；

3、 “ALARM”： connect with 24V audible-visual alarm，if

choose the 200~1000Hz frequency signal, it could be frequency

output interface.

4、 “K1” is relay output：Grade-I alarm interface, when the signal

up to Grade-I value, relay K1 will act and control fan or other

equipments.

5、 “K2” is relay output：Grade-II alarm interface, when the

signal up to Grade-II value, relay K2 will act and control fan or

other equipments.

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2.1、Choose the installation position：

The installation position is very important, this should consider the

following factors: the leakage gas density, gas proportion, surrounding

buildings, wind direction, if indoor, also the position of the door and

window.

Our engineer offer the following suggestion:

 If the detected gas heavy than air, the position should from ground

about 0.3~0.6m, if light than air, should higher the leakage source

than 0.5~2m.

 The gas detector should keep right distance from leakage source, if

too close, when the leakage frequency, will get too many alarm data,

if too far, the gas detector will respond slowly.

 When installed indoor, if the leakage source outdoor, the gas detector

should be installed in the air inlet position.

 The gas detector quantity should be according to the detecting

environment.

 The gas detector will be effected by the excessive temperature and

too low temperature.

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2.2、Different installation mode：

2.3、Connection description

All wire should be in line with the relevant national standards and

industry standards. The DC signal and AC power supply line should not

in one shielding cable. Gas detector should be connected with the earth

through pipeline, holder, or the cable. For the RS485 signal output with

two signal lines, please ensure A and B both use a single shielded

twisted pair line for good signal.

Wiring method：

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 Anti-clockwise rotate the upper cap and open it.

 Pull out the top level circuit module, it connected with the bottom

module by 10pin wire.

 When display the bottom control board, according to the picture C to

connect the wire.

 Put the power line and signal line insert into the shell from the

bottom cap left hole.

 If need, after insert into the accordingly terminal and then fixed the

power line and signal line.

Remark：

In the explosive dangerous place, the user must cooperate with the

national requirements cable to introduce the device.

In order to assure the gas detector safety, please ensure the detector shell

connected with the earth reliably.

三、Function introduction：

3.1、Normal working mode

Picture 3.1、Opening Display screen

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After power on, firstly display the each parameter, then begin to the

self-test program as the following steps：

1. LCD display all fields, the white backlight is lit;

2. LCD display full range value, the white backlight is lit;

3. LCD display low alarm value, the orange backlight is lit;；

4. LCD display high alarm value, the red backlight is lit;；

5. Enter into pre-heat interface;

6. After preheat, enter into the normal inspection mode.

Picture 3.2、Normal inspection interface

In the process of inspection, when the gas concentration exceed

the set level, AL1 and AL2 will display, meanwhile the red backlight

will light, means it alarm. When the gas detector occur obstacle will

display ERR.01, the orange backlight will light, then please check

and repair timely.

Remark：

Before the inspection interface, if you want to skip the preheat,

then press “ok”. But our engineer suggest not do this, if skip the preheat

time will cause the unstable data.

3.2、Setting interface

Setting interface with the following item: Grade-I (AL1) alarm

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setting --Grade II (AL2) alarm setting—Device address setting—Restore

factory setting—Zero Calibration setting—Gas concentration

setting—Span calibration setting.

Long press the “M” will enter into the Setting interface, then press

the up or down key to adjust the interface; if set the data or function,

press “M”, set the flashing parameter, after the set press “OK” to save

the change, if want to cancel, press the “M” again; long press the “M”,

will back to the normal inspection interface.

3.2.1、AL1 setting：

When the gas concentration data exceed the set level, the red

backlight will be lit, meanwhile the K1 relay will act.

Press “M”, the AL1 flashing, the set digit also flashing, press the ▲

could change the position. Press ▼ could adjust the data, from 0~9,

press “OK” will save the setting. If cancel, press the “M”.

Picture 3.3、AL1 setting interface

3.2.2、AL2 setting：

When the gas concentration data exceed the set level, the red

backlight will be lit, meanwhile the K2 relay will act.

Press “M”, the AL2 flashing, the set digit also flashing, press the ▲

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could change the position. Press ▼ could adjust the data, from 0~9,

press “OK” will save the setting. If cancel, press the “M”.

Picture 3.4、AL2 setting interface

3.2.3、Device address setting：

Picture 3.5、setting the device address interface

Users can set the device address through this interface, the range of the

address is 1---247. Among the RS485 bus system, every device is only.

The function is only useful to this type device which has the RS485

function output.

3.2.4、Restore factory setting：

Picture 3.6、Loading the factory setting interface

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If you want to recover the setting parameters as before, press the M

button, then begin to flash, if need to cancel this, you can press M button,

if you want to confirm the recovering factory settings, you can press the

OK button, and if the recovering setting is ok, then it will turn back the

standard interface automatically, if not, it will stay the primary interface.

3.2.5、Zero calibration setting：

Enter into the Zero Calibration interface, you can press the M

button under this interface.

Picture 3.7、Zero calibration interface

The SET ZERO character flickers and the interface display the

relevant number at the same time, after the number is stable, you can

press the OK button, then the zero demarcated can be finished.

3.2.6、Calibrate gas concentration setting：

After entering the setting interface, you can press the ▼ to change

this interface. If you press M button, the character SET CAL and the

relevant setting digits will flicker, meanwhile, you can input the

calibrated gas concentration. The ▲ has the function of removing the

setting digits, press the ▲ to change the digits you want to set, and press

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the ▼ can change the number of the relevant digits. The number can be

cyclic changed from 0~9, after this, you can press the OK button to

finish the demarcated gas concentration setting, the interface of the

standard gas concentration as below:

Picture 3.8、Calibration gas concentration interface

3.2.7、Span calibrations setting:

It refers to that the users can adjust the instrument by using the

calibration gas. After entering this interface, press the M button to

calibrate, then the SET PEAK becomes flickering. After that, pass

through the standard gas(control the flow as 200ml/min), when the data

stable, press the “OK” to save the setting.

Picture 3.9、Span calibration setting

四、Calibration methods

Before the gas detector leave our factory, we have calibrated it. If

the users have the calibration device, they can calibrate it regularly as the

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instruction. If they don’t have the equipment, they can go to the relevant

measure departments for help or send it to our company, then we can

calibrate it with costs.

In order to assure device measure accuracy, the normal calibrated

cycle of the instrument is 3---6 months. If the inspection place long term

with the higher concentration gas, then the calibrated cycle will be

shortened. So in order to ensure the instrument’s measure accuracy,

should timely calibrate it and save the calibration record.

4.1、Zero calibration

Pass the 0ppm concentration standard gas through the gas detector,

usually as the normal air as the zero, some gas(such as the O2, CO2),

take the N2 as the Zero; then enter into the Zero Calibration interface,

press the “M”, then the SET ZERO flashing, then display the data, when

the data stable, press the “ok” to save the setting and finish the Zero

Calibration.

Remark: Zero calibration must be operated in clean air, do not

operate in the normal working environment.

4.2、Span calibration

Firstly, make the standard gas with set concentration through the

flow meter, and control the flow between 160---300ml/min, then link the

conduit into the instrument tube, then choose the menu and enter the

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span calibration interface. Press the “M”, the SET PEAK flashing, after

the value is stable(don’t rise or descend any more), press the OK button

to save and exit.

五、Remote controller

Remote controller mainly for the working place with heavy dust or

other place inconvenient for open the cap. This could avoid the danger.

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Enter the “Menu” enter into the setting interface, then use the “<”

“>”to adjust the parameter interface, press the “Set” to adjust the

parameter. Press the “∧”“∨”to adjust the data, press “ok” to save the

setting, if only press “Menu” will not save, press “ESC” will be back to

normal working mode.

六、Notice and maintenance for sensor

Keep the gas detector away from corrosive gas, lampblack, dust and rain

when it working. Avoid the dropping from height or severe vibrations.

Do not regular contact the device with high concentration gas which has

higher concentration than the detecting range, or the sensor life will

reduce.

For mixed combustible gas or liquid vapor, there may be errors in the

detect results, due to the operating environment is different from the

calibration environment.

Recommend sensor life: Catalytic combustion sensor of 3 years,

Electrochemical sensor of 2 years. PID sensor of 3~5 years.

七、Warranty

OC-F08 gas detector with the warranty of 12 month(from the day leave

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factory). During this period, we will be responsible for providing the

free maintain to quality problems of breakdown under normal usage.

Our company disclaim all responsibility for the damage caused by

misuse, manmade damage or natural disaster.

If the sensor life is end, please contact us for replacement.

For the failures which can not be solved locally, please return the device

to distributor or manufacturer for maintenance. Our company will send

back to you as soon as possible.

Technical Specification

Applicable Gas Oxygen, Combustible gas, toxic gas, etc
Detecting Range According to the detected gas
Resolution According to the detected gas
Sampling Diffusion or pump-suction, circulation selectable

Accuracy

Repeatability ≤±1%

Zero drift

Sensor Type

Sensor Life

Response Time (T90) ≤20s
Alarming mode Audible-visual alarm（Optional）

Operating Environment

Working Voltage 24V DC(16~30VDC)

Output Signals

≤±3%F.S

≤±1%(F.S/year)

Catalytic combustion , Electrochemical, PID, Infrared
sensor
2~3 years(Catalytic combustion , Electrochemical)
3~5 years(PID, Infrared)

Temperature: -30℃~60℃ (Customized for special
demands)
Humidity: ≤95%RH (non-condensing); if >90%RH, should
add the filter
Pressure: 86kPa~106kPa

(Standard)Three-wire system 4~20mA standard signals
output, available for PLC, DCS, etc;
(Optional) Four-wire system RS485 digital signal output;

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(Optional) Frequency signal 200~1000Hz output;
Two-level passive contact output:220VAC 0.5A, 5VDC

0.5A
Installation Means Wall mounted, Pipe type (Thread:M40*1.5 )
Material of Body Cast aluminum
Explosion-proof Index Ex d IIC T6
Protection Grade IP66
Electrical Interface 3/4″NPT(Female Screw)、1/2″NPT(Female Screw)

Transmit Distance ≤2000m
Dimension 210 mm×140 mm×92 mm（L×W×H）
Weight About 1.5Kg
Standards GB15322.1-2003 ， GB3836.1-2010 ， GB3836.2-2010 ，

GB3836.4-2010

Detecting gas list:

Gas Detecting Range Alarm Threshold Sensor Type

NH3 0-100 PPM 25 PPM / 50 PPM
Cl2 0-50.0 PPM 10 PPM / 20 PPM
H2 0-1000 PPM 50 PPM / 100 PPM
CH2O 0-100 PPM 25 PPM / 50 PPM
O2 0-30.0%vol 18.5%vol / 23.5%vol
H2S 0-100 PPM 10 PPM / 20 PPM
HCl 0-30.0 PPM 5.0 PPM / 10.0 PPM
HCN 0-50.0 PPM 5.0 PPM / 10.0 PPM
PH3 0-20.0 PPM 0.3 PPM / 0.6 PPM

Electrochemical

sensor

HF 0-10.0 PPM 3.0 PPM / 6.0 PPM
NO 0-250 PPM 25 PPM / 50 PPM
CO 0-500 PPM 35 PPM / 70 PPM
SO2 0-20.0 PPM 2.0 PPM / 10.0 PPM
ClO2 0-50.0 PPM 0.3 PPM / 0.5 PPM
NO2 0-20.0 PPM 1.0 PPM / 2.0 PPM
C2H4O 0-100 PPM 10 PPM / 20 PPM
O3 0-20.0 PPM 5.0 PPM / 10.0 PPM
CH4 0-100%LEL 25%LEL / 50%LEL
C3H8 0-100%LEL 25%LEL / 50%LEL
H2 0-100%LEL 25%LEL / 50%LEL
NH3 0-100%LEL 25%LEL / 50%LEL
C2H4O 0-100%LEL 25%LEL / 50%LEL
CH3CH3 0-100%LEL 25%LEL / 50%LEL

Catalytic

combustion sensor
C2H4 0-100%LEL 25%LEL / 50%LEL
C4H10 0-100%LEL 25%LEL / 50%LEL
C4H8 0-100%LEL 25%LEL / 50%LEL
C7H8 0-100%LEL 25%LEL / 50%LEL

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C8H10 0-100%LEL 25%LEL / 50%LEL
CH4O 0-100%LEL 25%LEL / 50%LEL
C2H6O 0-100%LEL 25%LEL / 50%LEL
C3H4O 0-100%LEL 25%LEL / 50%LEL
C2H3Cl 0-100%LEL 25%LEL / 50%LEL
C3H9N 0-100%LEL 25%LEL / 50%LEL
CH3Br 0-100%LEL 25%LEL / 50%LEL

CO2

CH4

Remark: if not listed gas type or measuring range, please contact our company.

0-5.0%vol 1.0%vol / 3.0%vol

0-5000ppm 800 PPM / 1500 PPM

0-5.0%vol

0-100%vol

1.0%vol / 3.0%vol
5%vol / 10%vol

NDIR infrared

sensor

Henan Oceanus

Address: Jinjiang International Garden No.10th, Weilai

Road, Zhengzhou, China

Telephone: [phone]

Email: [email protected]

Web: http://china-oceanus.com/

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