Hoffer Flow Controls HIT-4G, Руководство пользователя

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Features and Specifications 9
HIT-4G HP-328
2.2 Flowmeter Inputs
Magnetic Pickup:
Frequency Range: 0.2 Hz to 5000 Hz.
Signal Level: 30 mV
P-P
to 30 V
P-P
.
Opto-Isolated DC Pulse:
Frequency Range: 0 Hz to 3000 Hz.
Signal Level: 0 to +DC pulse.
Internal Pull-Up 10 kΩ to +DC
Low (Logic 0): < 1 VDC
Min Pulse width: 0.1 msec
Contact Closure:
Frequency Range: 0 Hz to 5000 Hz
Internal Pull-up: 220 kΩ to +3.3 VDC
Reset:
Signal Type: Contact closure
Min Time On: 25 msec
Internal Pull-up: 35 kΩ to +3.3 VDC
MCP/RF Input
2.3 Temperature and Pressure Inputs
Temperature Input:
Type: *4-20 mA, 100 Ω RTD (DIN385)
Resolution: 12 bit
Pressure Input:
Type: *4-20 mA
Resolution: 12 bit
*4-20 mA input not available with battery power.
2.4 DC Power/Loop Powered
Voltage: 8 to 30 VDC
Current: < 24 mA
Loop Burden: 8 VDC maximum
Supply Backup: One C-size 3.6V Lithium battery pack for
Ex systems
Protection: Reverse polarity protected