Alpha Moisture Systems DS5000 Manual de instrucciones - Página 6
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3.3 Power Supply Cable
The DS5000 can be powered by either a 90-250V AC or 12V DC supply. Connect the
required supply cable to the appropriate terminals as shown in figure 1.1.
The AC power supply should be between 90 and 250V AC @ 50/60Hz.
The power supply wires are retained by screws. Ensure that the exposed section of the wire is
fully inserted and that no loose strands are exposed.
3.4 Alarm and Output Cable Connectors: -
Connect the required cables to the appropriate terminals as shown in figure 1.1, noting the
normally open and normally closed relay contact positions, and that the correct polarity and
the maximum load specification are strictly observed for the analogue outputs.
Ensure that the wire is fully inserted and that no loose strands are exposed.
3.5 Sensor Cable
Connect the sensor cable as shown in figure 1.1. Ensure that the correct colour coding is
observed and that the cage is securely clamped onto the bootlace ferrules on the cable
provided.
Root the sensor cable to the intended site of the sensor.
4 Installing the Air/Gas Sampling System
The piping installation schematic diagram (see section 4.1) shows all components, which
could be used in a dry gas measurement application although not all the items shown will be
required for every installation.
Care should be taken to ensure that the sample presented to the measuring sensor is not
contaminated with any component that will damage, contaminate or affect the sensor in a
way that will impair the system accuracy.
It is strongly recommended that the sample should not contain particulate matter, oil or other
heavy hydrocarbon condensate. If these components contaminate the sample system and/or
the measuring sensor, the system response time will be lengthened, although the sensor
calibration will not be effected.
The sample must not contain Ammonia, Chlorine, Ozone or any wet acid vapours or
liquid as these will permanently damage the sensor and impair calibration accuracy.
The flow rate, although not critical to the sensor measurement, should be low enough to
avoid abrasion to the sensor surface without being so low as to extend the system response
time to an unacceptable level. In general, a flow rate of between 2 and 3 litres/min at NTP
will give the right balance.
1188 Instruction Man DS5000.doc
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