MODEL: SP2nd

(Portable Single Gas Detector)

Operating Manual

Version 2.2

Guarantee and Repair

Senko Co., Ltd. guarantees the products of SP series for 24 months from the shipping date and repairs or replaces the defected product during warranty period. Nevertheless, Senko is not responsible for the following cases and would not repair or replace the product at no cost, such cases as the product has been purchased through the route that Senko does not approve, or as the product has been damaged or deformed mechanically by misuse of the user, or as the product has not been calibrated or replaced the parts according to processes in the operating manual.

In the event that any defect or issue of the product occurred during warranty period, Senko will cover all the expenses except transportation fee. After the period of warranty, the expenses of repair or replacement of the product and transportation will be in principle borne by the user. Senko will not be responsible for any indirect occurrence or accident and/or damage during the use of the product, and the guarantee shall be limited to the replacement of parts and product. The guarantee is applied only to the users who purchased the product at Senko’s authorized dealers or agents, and the guarantied repair is to be performed by the expert engineers of Senko’s authorized aftercare center.

Product Introduction

SP2nd is Simple Gas Alarm Detector that is required to protect users’ safety at dangerous work environments. The apparatus can indicate simultaneously the concentration of gases (Oxygen, Carbon Monoxide, Hydrogen Sulfide, Hydrogen,

Sulfur Dioxide, Hydrogen Chloride, Ammonia and etc.) on a digital LCD monitor, and the methods of operation and calibration are easy and convenient.

This instrument alerts accurately the alarm circumstances to operators and workers for their safety with its functions of loud alarm sound and vibration, when higher gas concentration than normality is detected. Besides, it is available for users to check upon occasion and adjust the value of alarm to the work environment on demand, since it has the function of indicating minimal and maximal concentration of the gases. It is also possible to prevent in advance workers from the danger of exposing for a definite period of time to such toxic gases as Hydrogen Sulfide(H

2

S), Carbon Monoxide(CO) and Sulfur Dioxide(SO

2

) by its function of STEL(Short Term Exposure Limit) and TWA(Time Weighted

Average).

01

Contents of Operating Manual

Product Specification ---------------------------------- 03

Names of Exterior and Display ----------------------- 04

Start and End of Operation -------------------------- 05

Operation Method ------------------------------------- 06

Backlight ---------------------------------------------- 06

Data Log ---------------------------------------------- 07

Calibration ---------------------------------------------- 08

Day and Time ------------------------------------------ 10

Method of Alarm Set and Display ------------------- 11

Battery & Sensor replacement------------------------ 13

Applicable Battery and External Pump -------------- 14

Notice for User ----------------------------------------- 15

02

1. Product Specification(SP2nd)

Alert Lamp

Vibration

Alert

Power source

Applicable

Temperature

& Humidity

Explosion-

Proof

Case

Standard

Accessories

Optional

Accessories

Model

Measured

Gas

Measured

Range

Measurement

Method

Principle of

Measurement

Monitor

SP2217 SP2227 SP2257 SP2277 SP2297 SP22L7 SP22N7 SP22C7

O

2

0~30

%Vol

CO

0~500 ppm

SO

2

0~20 ppm

H

2

0~1000 ppm

H

2

S

0~100 ppm

Electrochemical Type

Diffusion Type

Cl

0~20 ppm

LCD display (Built in back light)

2

NH

3

0~100 ppm

NO

2

0~20 ppm

Alarm 90dB

Red LED (Light-Emitting Diode)

Vibration Alarm(Rated Speed : 6,000 ± 1,000RPM)

Exterior

Event Log

-20℃ ~ +50℃, : 5% ~ 95% RH (non-condensing)

Ex ia IIC T4 / IP67 (KGS, ATEX)

Rubber PC Case

Belt Clip, Calibration Cap

Small-Sized Pump for Sampling(SP-Pump101)

Dimension : 54mm(W) x 91mm(H) x 32 mm(D)

Weight :120g (Including Battery)

Save the latest 20 data

03

2. Names and Functions of Exterior

5

6

3

4

2

1

7

8

1. Gas sensor

2. Buzzer

3. LCD display

4. Power Key

LCD display symbols

5. Arrow Key

6. Alarm LED

7. Fastening clip

8. Type label

Alarm

First Alarm

Second Alarm

Safety Success

Safety Failure

Fresh Air Calibration

Single Gas Calibration

Battery

Date

Month

Time

Log Value

Time Average Level Alarm

Time Average Level Alarm

Max Peak Value

Min Peak Value

Unit

04

3. Start and End of Operation

Instrument Power-On

Press Power key for a few seconds, and power is turned on. Measured gas and version appear on the screen. Afterwards during the instrument is being stabilized, the countdown appears on the screen. When the instrument is stabilized after the display of the above set values, it converts to Gas Detection Mode displaying icon. At normal status, icon disappears after blinking several times, and the concentration of the gas detected of the moment is indicated.

OFF

…

In the event that stabilization of the instrument fails, it would not convert to Gas Detection Mode, blinking the mark . In this case, calibration of the sensor or aftercare of the instrument is required.

Instrument Power-Off

Press Power key for a few seconds then power is turned off displaying countdown in order on the monitor.

OFF

If power key is pressed at any mode except the Gas Detection Mode or power key isn’t pressed for a few seconds, power isn’t turned on. or or

OFF

<Caution> Appropriate calibration of the instrument is always required prior to the operation at work sites. Make sure if the instrument makes the proper detection response to the pertinent gas and if the region of the gas detection is not blocked with foreign materials that interfere with the gas detection.

05

4. Operation Method

Detection Mode

The instrument is converted to Gas Measure Mode as below, when power is turned on. Gas Measure Mode indicates the concentration of gas and the remained capacity of battery on LCD, and it displays the gas concentration of Oxygen by %, and such toxic gases as H2S, CO and SO2 by ppm units.

In the event that the concentration of gas changes, it indicates the value of concentration in real-time. If it exceeds the 1st Alarm(LO) or 2nd Alarm(HI) standard (or STEL / TWA), the measured value and icon or icon( , icon in case of STEL / TWA) blinks periodically with the alerts by alarm sound and vibration. When the operator moves to the safe place where the concentration value of the measured gas is the normal state, the concentration value reduces and the alarm stops. (Even if the operator escapes to a safe area after the alarm alerts, the icon of alarm remains on the screen, and it will disappear only after confirming the value by pressing Power key. When the concentration value of the measured gas exceeds the maximum measuring range, it is indicated as the maximum value.

And LED, alarm sound and vibration applicable to 2nd Alarm Standard operate together.

Indication of Peak Value and TWA & STEL Value

At Gas Measure Mode, in case of Oxygen, the measured minimum and maximum values are displayed in order. And in case of Toxic Gases, maximum value, STEL value and TWA value are displayed consecutively. Program returns to Measure

Mode, when Power key is pressed at state displaying Peak, STEL and TWA. If the button is not touched for several seconds, the program will return to Gas Measure

Mode.

5. LCD Backlight

At the state of Gas Detection Mode indicating the concentration of gases simultaneously, LED Backlight is turned on by the short press on Arrow key, that enables the operator to view the measured value even at dark atmosphere. It is turned off by pressing again once more. Backlight will be automatically turned off after several seconds unless the button works.

06

6. Data Log

Alarm Data

At Gas Detection Mode, whenever short press Power key once, Data Log Mode is displayed after the measured minimum, maximum, STEL, TWA values are displayed in order. In order word, press four time(In case of Oxygen, three time), Data Log

Mode is displayed.

Data Select Mode is displayed by pressing Arrow key. At this mode, data is selected and a record is confirmed. Again press Power key once, year, month, day, time and alarm recorded are confirmed. If Arrow key is pressed at year, month, day, time display, the program returns to Data Select Mode.

Select Data or

‘L’ of ‘L.03’ means Log and ‘03’ means the number of date. Consequently, the program is saved three data.

At Data Select Mode ‘01.1’, left number ‘01’ means data and right number ‘1’ means occurred alarm(‘1’ is 1st alarm or ‘2’ is 2st alarm). In order word, first data of saved three data means occurred 1st alarm value. If another data is confirmed, data is selected by pressing Arrow key. Also if Arrow key is pressed at final data, program returns to Gas Measure Mode.

Data is saved to twenty number and if the number of data is over twenty, data is removed automatically in order of data that is stored the in the beginning

07

7. Calibration

<Caution> Senko Co., Ltd. performs the initial calibration before the shipment.

Incorrectly calibrated value can reduce the accuracy of the product, as the calibrate d value is stored in the instrument. Calibration is in general to be performed monthly or quarterly, and can be adjusted according to frequency of the use.

Start Fresh air

Calibration

Start Standard

Gas Calibration

Fresh air Calibration

icon appears when Power key is pressed a few seconds at the state of pressing Arrow key simultaneously. Program will enter to Calibration Mode of

Standby State. When Calibration starts, countdown 10, 9, 8………….3, 2, 1 continues for 10 seconds and Calibration will be completed. If Calibration is completed normally, it returns to Gas Measure Mode after several times blinking of icon

…

If Standby State Calibration failed, icon appears continuously. If this occurrence repeats, please consult a dealer or aftercare center to replace the sensor.

<Caution> Fresh Gas Calibration should be performed at the environment of fresh air without any influence of other gases, since the calibration is performed on the assumption that the concentration of Oxygen is 20.9%, that of Inflammable Gas is

0%LEL, and the concentration of Toxic Gas is 0ppm in the fresh air. Accordingly it is not recommended to perform Fresh Air Calibration at the closed space, and it should be avoided to perform the calibration where gases can be inhaled by operators.

08

Standard Gas Calibration

icon appears when Power key is pressed a few seconds at the state of pushing Arrow key simultaneously. And icon appears by input of Arrow key at the state. Standard Gas Calibration starts by pressing Power key for a few seconds displaying countdown. Be careful not to proceed with Calibration at the state without connecting with Standard Gas.

When Standard Gas Calibration starts, in case of Oxygen, Calibration proceeds by the countdown for 90 seconds. If the Calibration is normally executed, the concentration value of the gas connected at the moment is indicated with displaying icon. Afterwards, it indicates the concentration value measured at the moment, when Standard Gas is disconnected.

Change Value

Save Value &

Start Calibration

…

If the Calibration fails, program returns to Gas

Measure Mode after displaying of icon. If this occurrence repeats, please consult a dealer or aftercare center to replace the sensor.

Concentration of Calibration Gas Set to Instrument

Gas

농도

O

2

0%

CO

100 ppm

SO

2

10 ppm

H

2

500 ppm

09

H

2

S

50 ppm

Cl

2

10 ppm

NH

3

50 ppm

NO

2

10 ppm

8. Date and Time

Date and Time View

At Gas Detection Mode, press Arrow key for three seconds, Date and Time View

Mode is displayed. At this moment, short press Arrow key. Then the present time, year, month, day are confirmed with icon or character equivalent to it. If Power key is at the Present Mode or key is not pressed for several seconds, the program will return to Gas Measure Mode.

icon means AM, and icon means FM at the Present Time.

AM 12:34 2014 September

20th

Date and Time Set

At Gas Detection Mode, press Arrow key for three seconds, Date and Time View

Mode is displayed. At this moment, press Power key for five seconds. Then the

Date and Time Set Mode is displayed and number flickers. Press Arrow key, change value(Press long Arrow key, increase value quickly) and press Power key, save value.

Year set up to 2030 maximum. When using product early, user must set exact date and time because of not doing ship setting exact date and time

Change year Change month Change day

10

Change hour Change minute

9. Method of Alarm Set and Display

Alarm Set

When Arrow key is pressed for a few seconds at the state of power off, program enters to 1st Alarm Set Mode with displaying of icon. In this moment, 2nd

Alarm(HI) Set Mode with displaying icon by pressing Arrow key. Press Arrow key one more, display returns to Gas Measure Mode without changing Alarm Set value.

OFF

Change alarm

Save alarm

Change alarm

Save alarm

Press Power key at Alarm Set Mode, alarm value is checked. Using Arrow key, change alarm value and using Power key, save alarm value or move number. After final digit changes, press Power key once, program returns to Alarm Set Mode

Press Arrow key at 1st Alarm Set Mode, mode changes 2nd Alarm Set Mode or Gas

Measure Mode. 2nd alarm set method equals 1st alarm set method.

…

Alarm Display

When the 1st alarm occurs, and the operator recognizes it and presses Power key, only the alarm sound stops, remaining LED alarm as the operation stale. When the

2nd alarm happens, the operator and workers should promptly escape from the work site. The alarm do not even stop where the concentration value of gas is normal.(It need to turn off/on to stop all alarms.)

When STEL / TWA alarm occurs, it is indicated with the value of the measured concentration and alerts alarms of the same sound of alarm and vibration as that of the 2nd alarm. When STEL / TWA alarm occurs, the icon can be deleted only by

Power Off.

<Caution> The value of alarm of the instrument is set according to the alarm standard of each gas that is required by international standard. Therefore alarm value of the relevant gas can be changed under the responsibility and approval of the administrator of the work site where the instrument is used.

11

Primary battery alarm sounds repeatedly at 5 minute intervals when only a bar of battery icon is remained. Secondary battery alarm starts right before the end of power, and the power source finishes after 10 seconds from the outbreak of alarm.

In the event of failure of test or calibration, the icon is displayed with the sound of alarm.

Alarm Alarm & Vibration Display

1 st Alarm

Alarm Standard LCD Display

In Exceeding Alarm

Value Set Primarily

Displaying Icon &

Concentration

2 nd Alarm

TWA

STEL

Dead Battery

In Exceeding Alarm

Value Set Secondarily

Displaying Icon &

Concentration

In Exceeding Exposure

Concentration for 8 hour

Displaying Icon TWA &

Concentration

In Exceeding Exposure

Concentration for

15 minutes

Displaying Icon STEL

& Concentration

Battery Capacity is

Exhausted.

Blinking of Battery

Buzzer, LED,

LCD Backlight

Test Failure

Failure of Sensor Test

Failure of Calibration

Displaying Icon

Buzzer, LED

Alarm Set Point

Gas

1 st

O

2

19%

CO

30ppm

2 nd 23% 60ppm

SO

2

2ppm

H

2

H

2

S

100ppm 10ppm

Cl

2

0.5ppm

NH

3

25ppm

NO

2

3ppm

5ppm 500ppm 20ppm 1ppm 35ppm 5ppm

TWA

STEL

N/A

N/A

30ppm 2ppm

200ppm 5ppm

N/A

N/A

10ppm 0.5 pm 25ppm 3ppm

15ppm 1ppm 35ppm 5ppm

12

10. Battery & Sensor replacement

<Caution>

1. It is absolutely prohibited to replace battery at potential explosion or dangerous regions.

2. Replacement of components can be damage to intrinsic safety function.

3. The sensors published by SENKO should be used for replacement. Unsuitable function could be shown if another sensors use for replacement.

4. Disassembly should be necessary only for sensors & battery replacement. After the sensor replacement, the span gas calibration should be done.

Disassembly

- Turn off the power.

- Replace the sensor and battery , please refer to below drawing.

- After replacement, check the sensor fail and battery working.

7

5 8

3

9

1

2

4 6

1. Label(Membrane)

2. Calibration Cap

3. Front Cover

4. Sensor

5. PCB

6. Battery

7. Rear Cover

8. Belt clip

9. Machine Screw

13

11. Applicable Battery and External Pump

<Caution> Explosion can occur, when a battery is thrown into fire or disassembled with force. Disposal of the used battery should be performed according to the guide of the pertinent country or the work site.

Accessory(Optional) - External Pump (SP-Pump101)s

key has the function of On/Off, and the state of operation or trouble of the instrument can be recognized by LED lamp. When the leakage measurement or the measurement of concentration by inhalation of gas is required, it is available to measure gas concentration and leakage at the pertinent place by connecting the pump to the instrument. Prior to use, make sure that the instrument is tightly attached to the probe cover which is connected to the sensor.

**Please note that External Pump is the optional product that can be provided by the separate order.

Product specification(SP-Pump101)

Power Source

Continuous Operation Time

Applicable Temperature &

Humidity

AA Size Alkaline Battery(1 EA)

Available to Operate for 10 hours or longer

-20°C ~ +50°C / 5 ~ 95% RH

Exterior

Sampling Flux

Diagnosis Function

Dimension: 34mm(W) x 270mm(H) x 47 mm(D)

Weight: 200g (Including )

0.5 liter / minute

Deadlock Alarm, Alert of Insufficient (Red LEC Display)

14

12. Notice for User

Please use the instrument in the range of the applicable temperature, humidity and pressure that are appropriate for the specification of the product. Using the instrument beyond this range may cause malfunction or glitch of the instrument. .

Gas concentration measurement value by the sensor or the instrument can vary according to the environment at site (temperature, pressure and humidity).

Therefore the calibration of the instrument should be performed at the same or similar environment as that of the instrument use (temperature, pressure and humidity).

If temperature changes sharply during use of the instrument (for instance, using the instrument at places of far different temperatures between indoor and outdoor), the value of the measured gas concentration can be changed suddenly. Please use it after the gas concentration value is stabilized.

Severe vibration or shock to the instrument may cause the sudden change of value of the measured gas concentration. Please use it after the value of gas concentration is stabilized. Excessive shock to the unit can lead to trouble of the sensor or the instrument.

Notes on Approval(Label)

SENKO

Type : SP2nd

0575

II 1 G

DNV 10 ATEX 74743

Ex ia IIC T4 IP67

KGS 09-GA2BO-0100(0102)

-20℃≤Ta≤+50℃

Warning: Only as to intrinsic safety for use in hazardous location. Read manual prior to use.

SENKO Co.,Ltd.

15 Road Oesammiro (485 Oesammi-dong),

Osan-si, Gyeonggi-do, 447-230 South Korea

S/N:

CE marking: Electromagnetic Compatibility

(Directive 89/336/EEC)

Explosion Protection

(Directive 94/9/EEC)

KS marking: Korean Gas Safety for Explosion

Protection

This device is intended to be used in hazardous area Zone 0 within a temperature range of -

20℃ to +50℃, where gases of explosion group

IIC and temperature class T4 may be present.

S/N: Serial Number

15

Certificates

16

Certificates

17

Certificates

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