Inficon LDM150 User manual

LDM150

Operating Manual

LDM150

Refrigerant Monitor

English · Español ·Deutsch · Français ·Svenska · Italiano ·中文

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743-202-xxx LDM150 Operating Manual 200305

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LDM150

LDM150 ................................................................................................................................................... 3

English..................................................................................................................................................... 6

Español.................................................................................................................................................. 11

Deutsch.................................................................................................................................................. 16

Français................................................................................................................................................. 22

Svenska................................................................................................................................................. 27

Italiano ................................................................................................................................................... 32

中文........................................................................................................................................................ 37

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LDM150

Fig. 1

Fig. 2

Fig. 3

t [s]

25 4515 35 5510530 5020 40 60

AlarmC

POWER/ACTIVE

AlarmB

AlarmA

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LDM150

Fig. 4

Ammonia (NH3)

Amoniaco (NH3)

Ammoniak (NH3)

Ammoniac (NH3)

Ammoniak (NH3)

Ammoniaca (NH3)

氨(NH3)

H1 = 20 cm

X = 50 cm

Y = 20 cm

HFC, HFO, HCFC

HFKW/HFO/H-FCKW

HFC, HFO, HCFC

H3 = 20 cm

X = 50 cm

Y = 20 cm

Carbon Dioxide (CO2)

Dióxido de carbono (CO2)

Kohlendioxid (CO2)

Le dioxyde de carbone (CO2)

Koldioxid (CO2)

Anidride carbonica (CO2)

二氧化碳(CO2)

H2 = 150 cm

X = 50 cm

Y = 20 cm

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LDM150

Fig. 5 [mm]

Fig. 6 [mm]

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English

LDM150 Operating Manual

1. Table of Contents

2. Declaration Of Conformity ........................................................................................................... 7

3. Cautions and Warnings ............................................................................................................... 8

4. Alarm Levels, Factory Settings.................................................................................................... 8

5. Function....................................................................................................................................... 8

6. Service Function.......................................................................................................................... 9

7. Installation/Positioning................................................................................................................. 9

8. Calibration, Alarm Setting............................................................................................................ 9

9. Annual Function Control .............................................................................................................. 9

10. Automatic/Manual Alarm Reset ............................................................................................... 9

11. Alarm Time Delay (T1) ............................................................................................................ 9

12. Self-Test Function ................................................................................................................... 9

13. Fault Function........................................................................................................................ 10

14. Fail Safe................................................................................................................................. 10

15. Technical Data....................................................................................................................... 10

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2. Declaration Of Conformity

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3. Cautions and Warnings

WARNING

The unit must only be opened by authorized personnel!

No matter if power supply is removed the unit can still have external high voltage

over the volt free contacts.

4. Alarm Levels, Factory Settings

Ammonia (NH3) 0-4000 ppm

C=150 ppm

B=500 ppm

A=3000 ppm

HFC, HFO, HCFC 0-4000 ppm

C=100 ppm

B=1000 ppm

A=2000 ppm

Carbon Dioxide (CO2) 0-10000 ppm

C=2000 ppm

B=5000 ppm

A=8000 ppm

5. Function

When power supply is switched on, a green LED will flash to indicate power ”ON”. This will also start

the heating process of the sensor. After approximately 4 minutes the green LED will light and indicate

”Sensor Active”.

The detector has one yellow and two red LEDs. The yellow LED indicates low gas concentration

(Alarm C) and the red LEDs indicate medium gas concentration (Alarm B) and high gas concentration

(Alarm A).

When gas is detected the LEDs (2 - Fig. 1) will light and the relay corresponding to the alarm level will

change state. If alarm delay is chosen (see below) the respective LED will flash, and it will light (and

the relay will change state) when the chosen delay time is exceeded.

1.1: n 1 - Delay

1.2: n 2 - Delay

1.3: n 3 - Alarm reset: ON=Auto, OFF=Manual

1.4: n 4 - Not used

2.1: LED A

2.2: LED B

2.3: LED C

2.4: Power

3.1: GV Offset

3.2: +5 VDC

3.3: (-)

3.4: ALARM C

3.5: ALARM B

3.6: ALARM A

3.7: Test terminal

4.1: A adjustment

4.2: B adjustment

4.3: C adjustment

5: Reset/Test/Service

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6. Service Function

Pressing the ”Reset/Test/Service” button (5 - Fig. 1) for 10 seconds will disengage all alarm functions

for 60 minutes. During this period, it is always possible to start a new 60-minutes period by pressing

the button for 10 seconds again. Return to active status happens automatically at the end of the 60-

minutes period or may be done manually by a single press on the “Reset/Test/Service”-button. When

the service function is activated all LED’s will flash and all relays will be in normal mode position.

See Fig. 3

7. Installation/Positioning

The general rule is that the detector should be placed as close to the potential leak as possible, and at

the same time consider the gas density and any air movements in the room. The detector must also

be positioned in such a way that it is easily accessible for service. See Fig. 4 for suggestions on

suitable placement.

8. Calibration, Alarm Setting

The detectors are delivered for a specific gas type and other calibrations are normally not necessary.

The detector is named with the required gas type being detected. It is, however, very easy to change

the thresholds by using MCT150 Monitor Calibration Tool.

MCT150 Monitor Calibration Tool is connected to the test terminal. (3 - Fig. 1)

9. Annual Function Control

Testing the system is recommended to be done at least once a year. A basic function test can be

made using the MCT150 Monitor Calibration Tool.

10. Automatic/Manual Alarm Reset

Is managed by DIP switch (1 - Fig. 1) no3 where “ON” means automatic reset and “OFF” means

manual reset by pressing the “Reset/Test/Service” button (5 - Fig. 1 - located under the cover).

11. Alarm Time Delay (T1)

Is managed by DIP-switches (1 - Fig. 1) no1 and no2:

no1

no2

Alarm delay

No alarm delay

OFF

(1) minutes alarm delay

OFF

(10) minutes alarm delay

OFF

(30) minutes alarm delay

12. Self-Test Function

Press the “Reset/Test/Service” button (5 - Fig. 1) for 5 seconds and the test program will start and go

through all LED functions and all relay functions in five seconds intervals. See Fig. 2.

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13. Fault Function

If there is a voltage drop (GV-value below 0,1V) from the sensor there is a fault situation. During the

first four hours the green LED will be deactivated, and the other LED’s will flash. Alarm relay C will

change state. After four hours the LED “Alarm B” will light (other LED’s will be deactivated) and relay

“Alarm B” will also change state.

14. Fail Safe

Relays are in normal mode energized and will change state if power failure or if a fault situation

occurs.

15. Technical Data

Housing HFC & NH3:

Polycarbonate, (PC) IP54

Power consumption:

Max 2W

Housing CO2:

Polycarbonate, (PC) IP67

Power consumption:

Max 3W

Power supply:

LDM150: 12-24V AC/DC

LDM150,HFC/NH3, High Voltage: 230V AC, 50/60 Hz

LDM150, CO2, High Voltage: 85-230V AC, 50/60 Hz

Indications:

Power/Active and alarm indication on three levels.

Outputs relay:

Potential free contacts (230V, max 5A) .

Ambient temp:

-40 °C - + 50 C (Automatic temperature compensation)

Humidity:

0-95% RH (non-condensing)

Glands:

4 of M16 membrane glands

Screw terminals:

< 1,5 mm2, fuse < 10A

Please Note!

The semi conductive sensors used in the LDM150 range of products are not gas

specific. Care should be taken when installing the equipment to minimize any cross

contamination from other gases or vapors.

For further guidance on specific applications contact us.

This product is intended for use in the industrial area.

Specifications subject to change.

Table of contents

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