Olympia electronics TC100N Manuel utilisateur

TC100N

Fixed Gas Detector Operation Manual

Safety Information

Before using this device, please carefully read the following safety

information:

After opening the packing box, please check if there is any crack on

the device or spare part missing. If the device found damaged,

please don't use it. Please contact the seller.

Before using, please make sure the covers are fixed tightly.

In order to assure the sensitivity and accuracy, please calibrate zero

point before the first time of using.

Working voltage of the device is 18VDC-30VDC and suggested

voltage is 24VDC. Any voltage beyond 30VDC will damage the

device.

Please don't install the device on the place where there is fast flow

passing. Otherwise, it will influence the result.

Please don’t expose the device always to high concentration gas

(higher than the detecting range). Otherwise, it will shorten the

sensor life.

Please don’t paint the gas sensor or detector.

Only special designed gas sensor is allowed to be used on the

device.

Calibrate the gas sensor once at least every 180 days. We suggest

the user inspect or test device regularly, so as to avoid the problems

of falling dust on the sensor head or unexpected painting.

Wire connection must be carried when the power is cut off. Before

opening the cover, please make sure there is no mixture gas of

combustible gas and air in the environment, so as to avoid any

possible explosion.

Please avoid water or dust to come into the cover through the wire

connection holes. Otherwise, it will easily damage the device.

Please avoid the device from electric shock and continuous serious

mechanical striking.

Installation must abide by the local electric equipment installation

regulations.

It’s forbidden for the user to disassembly, adjust and repair the

device or to replace the internal spare parts.

All operation inside the device must be carried by professional

personnel. Before operation, please carefully read and understand

the operation manual.

Precautions:

To avoid personal safety injury, Instrument damage and potential

dangerous accident; do not install the gas detector before reading this

manual

1. Brief Introduction

TC100N fixed gas detector adopts

advanced catalytic gas sensor or

electrochemical sensor, which can

translate the gas concentration in

the air to the digital signal output.

TC100N adopts three wire 4~20mA

electric current signal to connect to

the gas monitor panel.

The detector working with gas

controller can be used to detect gas

in refinery, chemical plant, LPG

station, boiler room, painting plant

and other places with gas exists.

2. Specifications

Gas

Range

Resolution

Low alarm

High alarm

LEL

(0~100)%LEL

1%LEL

20%LEL

50%LEL

HC vapour

(0~100)%LEL

1%LEL

20%LEL

50%LEL

(0~30)%vol

0.1%vol

19.5%vol

23.5%vol

(0~1000)ppm

1ppm

35ppm

200ppm

H2S

(0~100)ppm

1ppm

10ppm

15ppm

CL2

(0~20)ppm

0.1ppm

5ppm

10ppm

SO2

(0~500)ppm

1ppm

10ppm

50ppm

NH3

(0~100)ppm

1ppm

25ppm

50ppm

Sensor type: Catalytic or electrochemical gas sensor

Sampling: Natural diffusion

Working type: Continuously working

Error: ≤±5%F.S.

Response time (T90): ≤30s (LEL) / ≤60s (toxic gas)

Working condition:

Temperature: -40～70℃(LEL) / -20～50℃(toxic gas)

Humidity: ≤95%RH (no condensation)

Explosion-proof grade: ExdⅡCT6

Protection grade: IP55

Working voltage: DC24V±25%

Working pressure: 86kPa～106kPa

Signal output: 4-20mA 3-line

Consumption: 2W/channel

Life: Catalytic sensor 3 years; electrochemical sensor: 2 years

Connection screw size: G1/2”

Cable required: 3-line cable, ≥3 mm2

Transforming distance: ≤1000m

Dimension and weight: l×b×h mm 196×186×68.5 App. 1200g

3. Structural Drawing

The device consists of the housing, sensor part and PCB. The housing

consists of upper cover, lower cover, O-type circle and cable input hole

part. The housing function is to protect the inside part. The sensor part

consists of gas sensor, sensor protection cover, decoration part and

calibration cap. The sensor and housing is connected by potting epoxy

resin. The following is the structural drawing:

No.

Name

No.

Name

No.

Name

Upper cover

Lower cover

Fixing circle

O-type circle

Ground nut

Pad

Protection part

Sensor module

Seal ring

PCB

Closing plug

Connector

4. Installation

4.1 Position

4.1.1 For petrol gas, oil gas and alcohol gas etc. which is heavier than

the air, the position is 0.3m-0.6m higher than the ground.

4.1.2 For natural gas, CH4 etc which is lighter than the air, the position is

0.5m-2m higher than the gas source.

Note: Gas density more than 0.97kg/CBM, then it's heavier.

Fig. 1 Structural drawing

Gas density less than 0.97kg/CBM, then it's lighter.

4.1.3 The position should be far away from shocking, shattering, strong

electromagnetic interference. Around the position, there should be at

least 0.3m empty place.

4.1.4 The position should be within 1m around the possible gas leakage

area, such as valve, pipe connection point, gas outlet place. Please try to

install it nearer to the above places, but avoid influencing the working of

the other equipments. Please avoid the environment of high temperature

and humidity. Also please keep it from water swashing, oil and

mechanical damage. Please also consider the convenience of

maintenance and calibration.

4.1.5 For large scale detection, we suggest install 1pc every 10-12

square meters, so as to get the best detection result.

4.2 Dimensions

4.3 Installation methods

Note: Fix the detector with sensor head downwards. According to the

installation place, fix the detector onto the wall or gas pipes. Details as

follows:

Method 1 Wall mounted: According to the device dimension, choose a

Fig. 2 Dimension

Drawing

suitable wall. First fix devices on the wall by 4pcs of M6×60 bolts.

Method 2 Screw Buttjoint Connection: If there is pipe screw of G1/2

on the spot, the user can butt joint the device to the pipe screws and then

screw tightly the device.

Wall

Fixing holes

Bolts

Pipe with screw

Connector

Fig. 3 Wall Mounted

Fig.4 Screw Buttjoint Connection-1

Method 3 Pipe Installation:

If there is 1" to 2" (diameter) pipe, the user can use 2 U-type bolts to fix

the hanging plate on the pipe, then fix the detector onto the plate. Or, the

user can first fix the detector onto the plate and then fix the plate on the

pipe.

Pipe with screw

Connector

Installation plate

Detector

Fixing bolts

Pipes

U-type bolts

Fig. 5 Screw Buttjoint Connection-2

Fig. 6 Pipe Installation

Fig. 7 Inside the device

5. Wire connection

Warning: All the wire connection must be carried when the power is cut

off.

Procedure:

5.1 Take off the up cover from the device and the inside can be seen.

5.2 Screw down the pipe connector in counter-clockwise way. Take out

the explosion-proof pad. In turns, put 3-line wire to the internal of the

enclosure through the pipe connector, compaction circle, air-proof

closing plug and the wire connection hole.According to the

explosion-proof requirement, please don't take out the explosion-proof

closing plug from the unused wire connection holes. Please don't throw

away any part inside the enclosure or the PCB.

No.

Name

DIP switch

+ button

- button

Calibration LED

Power LED

Terminals

Fixing holes/Ground

No.

Icon

Name

Specification

1、2

Low alarm

---

3、4

High alarm

---

Iout

4-20mA

output

4～20mA

－

Cathode of

power

DC24V±25%

24V

Anode of

DC24V±25%

5.3 All the wires must be

connected to the terminals as shown on the following drawing.

5.4 After the correct wire connection, take out the useless wire from the

enclosure. Then screw on the connector, tighten the compaction circle,

rubber air-proof circle and wire. Explosion-proof soft tube can also be

connected with the device directly.

Note: The size of the wire between the controller and detector should be

not less than 6mm, and the distance should be note more than 1000m.

5.5 After checking all the connection well, install the display PCB and the

front cover. Make sure O-type circle is put on and connected with the

cover tightly.

6. Debugging

Before adjusting, please be noted of the following information:

Note: Adjusting must be carried out by professional personnels.

Procedures:

power

Warning!

Make sure wire connection is good and then connect it to the

power.

Make sure there is no combustible gas leakage on the spot.

Don't use pure gas or light to test it. Otherwise, it will damage

the sensor or lower the sensitivity.

Fig. 8 Terminals

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