Kobold MAS Series, Инструкция по эксплуатации

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MAS Instruction Manual
Page 9
CAUTION! The maximum pressure and temperature in the CAUTION! The maximum pressure and temperature in the
CAUTION! The maximum pressure and temperature in the CAUTION! The maximum pressure and temperature in the
CAUTION! The maximum pressure and temperature in the
flow line in which your MAS is to be installed must not
flow line in which your MAS is to be installed must not flow line in which your MAS is to be installed must not flow line in which your MAS is to be installed must not flow line in which your MAS is to be installed must not
exceed 150 psig (10 kg/cm
exceed 150 psig (10 kg/cm exceed 150 psig (10 kg/cm exceed 150 psig (10 kg/cm exceed 150 psig (10 kg/cm 2 2 2 2 2 gauge) or 150 gauge) or 150 gauge) or 150 gauge) or 150 gauge) or 150
°
F ( 6 5 F ( 6 5 F ( 6 5 F ( 6 5 F ( 6 5
°
C ) , C ) , C ) , C ) , C ) ,
respectively. respectively. respectively. respectively. respectively.
In order to ensure a successful installation, inlet and outlet tubing
or piping should be in a clean state prior to plumbing your MAS to
the system. MAS is applicable to clean gas only
clean gas only clean gas only clean gas only clean gas only because
particulates and other foreign matter may clog the sensor tube and
laminar flow element over a period of time. If the gas contains
particulate matter, install a high-efficiency, 50 to 100 micron, in-
line filter upstream of the MAS.
Do not locate the MAS Flowmeter in areas subject to sudden
temperature changes, moisture, drafts, or near equipment radiating
significant amounts of heat. Allow adequate space for cable
connectors and wiring. If your MAS is to be mounted in other than
a horizontal position, the zero will need adjustment. See Section
5.2, R
ECALIBRATION
O
VER
T
HE
S
AME
F
LOW
R
ANGE
.
CAUTION! Be sure the arrow on the side of the transducer CAUTION! Be sure the arrow on the side of the transducer CAUTION! Be sure the arrow on the side of the transducer CAUTION! Be sure the arrow on the side of the transducer CAUTION! Be sure the arrow on the side of the transducer
points in the direction of flow.
points in the direction of flow. points in the direction of flow. points in the direction of flow. points in the direction of flow.
The MAS may be mounted to a chassis with two 6-32 self-tapping
screws. See Section 1.3, S
PECIFICATIONS
, for hole dimensions.
Your MAS is supplied with either 1 /
4
inch female NPT (standard)
or 1 /
4
, 3 /
8
or 1 /
2
inch compression inlet and outlet fittings. These
fittings should not be removed unless your MAS is being cleaned
or calibrated for a new flow range. VCO
® or VCR ® fittings are
available on special order. 1 /
4
-inch pipe requires a good quality
paste pipe thread sealant and should be installed in the inlet and
outlet fittings 1
1 /
2
turns beyond hand-tight.
CAUTION! Over-tightening will crack the fittings and CAUTION! Over-tightening will crack the fittings and
CAUTION! Over-tightening will crack the fittings and CAUTION! Over-tightening will crack the fittings and
CAUTION! Over-tightening will crack the fittings and
shift calibration.
shift calibration. shift calibration. shift calibration. shift calibration.
For the first installation of compression fittings, simply insert the
tubing into the fitting. Make sure that the tubing rests firmly on
the shoulder of the fitting and that the nut is hand-tight. Scribe the
nut at the six o’clock position. While holding the fitting body steady
with a back-up wrench, tighten the nut 1
1 /
4
turns, watching the
scribe mark make one complete revolution and continue to the nine
o’clock position. After this, the fitting can be reconnected by
snugging with a wrench. Do not fail to use a back-up wrench or the
inlet fitting may be damaged.
2.4
Plumbing
Connections
2.3
Mechanical
Installation