Enmet DC Powered Sample Module Manual do Utilizador descarregar pdf (Página 6)

ENMET Corporation Gas Sampling Unit

2.0 Specifications2.0 Specifications

Power Requirement 10 - 30 VDC

Suction Flow Rate 0.3 Liter/min. (adjustable after installation)

Sampling distance 100 ft maximum

Suction Pump Electromagnetic diaphragm pump

Piping Material Polypropylene, non toxic vinyl tubing

External Piping Connections Compress fitting for ¼ O.D. tubing

Installation Method Wall mounting

Dimensions 11(w) X 6.5(H) X 5(D) inches

Weight 2 lbs

Operating Temperature Range +32ºF (0ºC) to +104ºF (40ºC)

NOTE: All specifications stated in this manual may change without notice.

3.0 Features and Function3.0 Features and Function

Refer to Figure 1 for component layout diagram.

Feature Function

Power Terminal This terminal connects the DC power (10 - 30 VDC)

supplied from external power source

Flowmeter This Flowmeter allows the user to verify and monitor the

flow rate of the air sample. Proper flow rate,

approximately 0.5 lpm(liter per minute).

Flowmeter Valve This valve is used to control the flow rate. Adjust flow to

proper flow rate, approximately 0.5 lpm (liter per minute).

Flow Sensing Device This flow sensing device is to monitor for loss of air flow.

Activation upon loss of air flow results in relay activation.

Low Flow Alarm Light (Optional

with some installations)

This light when green indicates flow rate is sufficient.

When light is red, flow rate is inadequate.

Sampling Pump This electromagnetic diaphragm pump draws the air

sample from the test area to the sensor.

Exhaust Outlet This port expels the air sample after it passes the sensor.

For external piping, use ¼″ O.D. tubing.

Sampling Inlet This port draws the air sample from the test area. For

external piping, use ¼″ O.D. tubing.

Gas Sensing Chamber This chamber directs the air sample to the gas sensor.

Varies, depending on type of sensor/transmitter

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