ENMET DC Powered Sample Module - Manual (Page 6)

ENMET Corporation Gas Sampling Unit
2
2.0 Specifications 2.0 Specifications
Power Requirement
10 - 30 V DC
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 (0º C) to +104ºF (40º C)
N OTE : All specifications stated in this manual may change without notice.
3.0 Features and Function 3.0 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 lp m(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