4 temperature measurement, 5 pressure measurement – LumaSense Technologies INNOVA 1309 User Manual

Page 27

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Chapter 3
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BE1285-15

1309 Multipoint Sampler

LumaSense Technologies A/S

Page 27 of 42

The time taken to draw a sample depends upon the type of external

pump and the diameter and length of the sampling tube.

3.4 Temperature Measurement

The temperature measured by the Air Temperature Transducer

MM0034, Surface Temperature Transducer MM0035 or Operative Tem-
perature Transducer MM0060 is read out from the 1309 as follows:

Example:

SENSOR_TEMP? 1<LF>

Reads-out the temperature data in

°C from the temperature transducer
connected to input number 1. If no

transducer is connected to the par-
ticular input, the 1309 outputs -

100°C.

3.5 Pressure Measurement

The 1309 contains a pressure transducer. The atmospheric pressure

around the multiplexer is read out as follows:

Example:

PRESSURE? 1<LF>

Reads-out the atmospheric pressure
in kPa.

3.6 Checking the 1309

3.6.1

Status? Interface Job

This job reads-out the 1309’s current mechanical condition. The 1309’s
current condition is shown as a “flag”, i.e. a word-value comprising 16

bits, each of which represents a specific mechanical component. If a bit
is set, the 1309 is currently using the corresponding component. The

flag is output from the 1309 as the total of the decimal equivalents of
the binary values of the bits which are set. See Table 3.2 for the com-

ponents represented by each bit in the Status flag, and their corre-
sponding decimal values.

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