FlowCERT
Flow Cert Second Edition.pdf - Pulsar Process Measurement
Flow Cert Second Edition.pdf - Pulsar Process Measurement
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Speedy Hardware Specification<br />
Supply Voltage<br />
8 to 24 volt DC<br />
Power consumption<br />
2.1 watt<br />
IP rating<br />
IP68<br />
Operating temperature range -20˚C to +50˚C (+40˚C in Ex zone 1)<br />
Ex approval (optional)<br />
II 2G EEx ib IIB T4<br />
RS 485 interface<br />
38400 baud, 8 data bit, 1 stop bit, no<br />
parity<br />
Measurement principle<br />
Ultrasonic continuous wave DOPPLER<br />
Measurement frequency<br />
1 MHz<br />
Flow velocity measurement range +/- 6m/s<br />
Temperature measurement range -20˚C to +50˚C<br />
Medium contacting material Polyurethane, stainless steel 1.4571<br />
(V4A), PVDF<br />
Cable type<br />
LiYC11Y 2x1.5 + 1x2x0.34<br />
Speedy Wiring Details<br />
The Pulsar <strong>FlowCERT</strong> is interfaced to Speedy via a digital communications<br />
interface through the RS485 terminals. The speedy also takes its power from<br />
the <strong>FlowCERT</strong> unit.<br />
The terminal strip for the wall mount <strong>FlowCERT</strong> is as detailed below.<br />
There is also a wiring diagram inside the terminal access cover.<br />
Details on connecting the Speedy sensor to the <strong>FlowCERT</strong> are as follows:<br />
Speedy cable <strong>FlowCERT</strong> terminals Description<br />
Black 34 Shield<br />
Green 35 RS485 -<br />
White 36 RS485 +<br />
Red 41 24 volt DC supply<br />
Blue 44 0 volt supply GND<br />
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