Kobold MAS, Руководство по эксплуатации

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MAS
page 8 MAS K05/0722
Pin No. Function
1 No Connection
2 Flow Signal Ground
3 0 to +5 VDC Flow Signal
4 + Power Supply
(12 VDC) *1, *2
5 Remote Display Flow Signal
6 Remote Display Ground
7 Power Supply Ground
8 Analogue output 4 to 20 mA
Ground
9 Analogue output 4 to 20 mA
signal
* 1 Power supply voltage must be specified
at time of order. Operating a 12 VDC
meter at 24 VDC will cause damage.
Running a 24 VDC meter at 12 VDC will
result in faulty operation.
*
2
Do not DC power at the “D”
connector while using a power supply at
the DC power jack. Both supplies may be
damaged.
8.1 Power supply
If you use a KOBOLD MAS-5000 or MAS-5015 power pack, insert the jack plug in
the foreseen socket on the Mass Flow Meter MAS. Then simply connect the
power unit to the mains.
If not using a MAS-5000 or MAS-5015 power pack, supply the MAS via the 9-Pin
Sub-D-Connector with a voltage of 12-15 VDC. MAS Flow Meters require a single
+12 to +15 VDC power supply capable of providing a minimum current of 100
mA. The MAS can also be configured for +24 VDC power at 100 mA.
After the power has been switched on the output signal is initially maximum for a
short time (c. 10-20 seconds). It then returns to 0 Volt (or 4 mA, depending on the
model provided). Please note that the warming up period for the MAS should be
about 15 minutes.
After the warming up phase the MAS indicates the measured flow values on the
display.
c onnec tor