Detcon DM-100 Bedienungsanleitung PDF herunterladen (Seite 6)

Model DM-100

DM-100 Instruction Manual Rev. 3.3 Page 2 of 40

The DM-100 O

deficiency sensor technology is a two electrode galvanic metal air battery type cell, which is

housed as a field replaceable intelligent plug-in sensor. The cell is diffusion limited and functions as a direct

current generator proportional to the amount of oxygen adsorption. The sensors are temperature compensated

and show good accuracy and stability over the operating temperature range of -20° to 50°C (-4° to +122° F).

The sensor is warranted for two years and has an expected service life of up to 2.5 years in ambient air at

20.9% oxygen.

Figure 3 Construction of Galvanic Cell

1.2 Modular Mechanical Design

The Model DM-100 Sensor Assembly is completely modular and is made up of four parts (Figure 4):

1. DM-100 Intelligent Transmitter Module (ITM)

2. Intelligent Plug-in Sensor (varies by gas type and range)

3. 100 Series Bottom Housing Assembly (H2S assemblies use 100 Series Bottom Housing Assembly

with Integral Filter)

4. Splash Guard.

O-Ring

100 Series Bottom

Housing Assembly

Plug-in

Replaceable

Sensor

Interconnect

Wires

Housing Bottom

Locking Screw

Intelligent Transmitter Module (ITM)

Micro-processor controlled circuit

encapsulated in an Explosion proof

housing.

Magnetic

Programming

Switches

Splash Guard

DETCON, INC.

H2S

100 PPM

DM-100

" NPT Locking Nut

Figure 4 Sensor Assembly Breakaway

NOTE

All metal components are constructed from electro polished 316 Stainless Steel in order to

maximize corrosion resistance in harsh environments.

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