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Sarasota 2000 Ultrasonic Multipath
Flowmeter
Appendix 3 SPECIFICATION Page A3-2
Thermo Fisher Scientific
APPENDIX 3
SPECIFICATION
A3.3 Electronics
Timer resolution
10
-9
s
Logging capacity
1 Mbyte
4-20 mA outputs
Resolution
12
bits
Maximum load when loop power internally sourced 600 ohms
Minimum voltage when loop power externally sourced 3.5 volts
4-20 mA inputs
Resolution
12
bits
Input impedance 200 ohms
BCD as output
High level 5 volts, +/- 5%, o/p impedance 1 k ohm
Low level 0 volts, o/p impedance 1 k ohm
BCD as input
High level 4 to 5 volts i/p impedance 100 k ohm
Low level 0 to 1volt, i/p impedance 100 k ohm
Relays
Fault
relay
Type – change over (NO & NC)
Contact rating 0.3 A at 125 V AC or 1A @ 30 V DC
Guaranteed operations greater than 10
5
Standard Relay
(relays 2-4 on new boards or 1-4 on early boards)
Type – change over (NO & NC)
Contact
rating 5 A at 250 V AC or 30 V DC
Guaranteed operations greater than 10
5
(depends on load and voltage)
Solid State Relay (Relay 1 on new style boards)
Type
NO
Rating 0.21 A @ 400 V peak
On resistance 27 ohm max ac load, 7 ohm dc load
Off resistance 7000 G ohm
Consult Thermo Fisher Scientific for solid state option for high switching rates.
Serial
RS232 Baud rates
1200, 2400, 4800, 9600, 19200 (modem)
1200, 2400, 4800, 9600, 19200, 38400 (PC)
RS485 Baud rates
1200, 2400, 4800, 9600, 19200
Содержание HB-S2000
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