Quincy EQ LTE 2014900479, Техническое руководство

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Page 20
The angular deviation should not be greater
than ± 2° in relation to the ideal position
otherwise the measuring accuracy will
decrease.
Air flow measuring range data:
Measuring range will vary relative to inner pipe
diameter (D).
Maximum velocity of 185 meters per second
(607 cubic feet per second)
D
(mm)
D
(inch)
Flow
(m³/min)
Flow
(cfm)
65 2½ 30.35 1071
70.3 35.63
71.1 36.45
76.1 41.85
80 3 46.31 1635
82.5 49.31
84.9 52.22
90 58.75
100 4 72.62 2564
107.1 83.4
110 87.98
125 5 113.74 4016
133.7 130.13
150 6 163.98 5790
159.3 184.95
182.5 243.03
190 263.42
200 8 292.22 10319
206.5 311.53
250 10 457.15 16144
260.4 496.56
300 12 659.07 23274
309.7 702.38
339.6 844.55
400 1171.69
500 1830.76
600 2636.3
700 3588.3
800 4686.75
900 5931.67
1000 7323.05
DIN 1945/ISO 1217: 20°C, 1000mbar
Gas flow max velocity adjustment table
Air 170.1 558.07
Argon Ar 289.2 948.81
Carbon dioxide CO² 183.1 600.72
Nitrogen N
2
164.5 539.69
Oxygen O
2
176.4 578.74
Nitrous oxide N
2
O 181.4 595.14
Natural gas NG 109.4 358.92
DIN 1343: 0°C, 1013.25mbar
Maintenance
The sensor head should be checked regularly
for dirt and cleaned if necessary. Should dirt,
dust or oil accumulate on the sensor element,
a deviation will occur in the measuring value.
An annual check is recommended. Should the
compressed air be heavily soiled this interval
must be shortened.
Cleaning of the sensor head
The sensor head can be cleaned by carefully
agitating it in warm water with a small amount
of domestic wash liquid. Avoid physical
intervention on the sensor (e. g. using a
sponge or brush).
If soiling cannot be removed, service and
maintenance must be carried out by the
manufacturer.
Calibration certificates
Calibration certificates are issued by the
manufacturer on request. A service fee is
payable! Calibration is carried out using DKD
(German calibration authority) certificated
volume flow meters.
Note: The location of the air flow sensor may
vary according to the compressor, compressor
array or the process parameter monitored
Gas
Max
velocity
(m/s)
Max
velocity
(ft/s)