Enmet SE-5175 Manual do Utilizador descarregar pdf (Página 9)

SE-5175 ENMET Corporation

4.2 Normal Display Mode

When the SE-5175 is installed as described in section 3, and in clean air, the POWER green LED is on and the display is lit.

The red alarm and fault LEDs are not lit.

To advance through displays of operational information press the M

ENU

button.

See sequence of operational information below:

Example of Typical Operational Display

Display Measurement of the target gas

Press M

ENU

button

Display indicates Alarm 1 Set point

Press M

ENU

button

Display indicates Alarm 2 Set point

Press M

ENU

button

Display indicates Alarm 3 Set point

Press M

ENU

button

Display indicates mA Span range

(Full Scale)

Press M

ENU

button

Display returns to operational measurment

Operational Display Flow Chart

4.2.1 Alarm Conditions SE-5175

There are three alarm set points. The factory settings of these alarm set points are shown in Table 2.

Table 2: Factory Alarm Set Points

Gas Alarm 1 Alarm 2 Alarm 3

Ammonia 25 ppm 50 ppm 75 ppm

Arsine 0.05 ppm 0.1 ppm 0.4 ppm

Carbon Monoxide 35 ppm 50 ppm 200 ppm

Chlorine 0.5 ppm 1 ppm 5 ppm

Ethylene Oxide 3 ppm 5 ppm 9 ppm

Hydrogen 200 ppm 500 ppm 1000 ppm

Hydrogen Chloride 5 ppm 10 ppm 20 ppm

Hydrogen Fluoride 3 ppm 6 ppm 9 ppm

Hydrogen Sulfide 10 ppm 20 ppm 50 ppm

Nitric Oxide 25ppm 50 ppm 75 ppm

Nitrogen Dioxide 3 ppm 5 ppm 10 ppm

Oxygen 17% V 19.5%V 23.5V

Ozone 0.1 ppm 0.5 ppm 0.75 ppm

Silane 5 ppm 10 ppm 20 ppm

Sulfur Dioxide 2 ppm 5 ppm 10 ppm

These alarm set points can be changed within limits; see the maintenance section of this manual for the procedure.

If the target gas concentration increases above that of the alarm set point, the associated red LED is lit, the associated relay

changes state, and the audio alarm is activated. Oxygen is the exception with descending and rising alarm points.

0 ppm

A1: 05

ENU

A2: 10

ENU

A3: 20

ENU

mA: 50

ENU

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 19 20

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