Inputs; Dc Power/Loop Powered; Analog Output - Hoffer Flow Controls HIT-4U User Manual

Flow-Tech, Inc. | In MD 410-666-3200 - In VA 804-752-3450 | www.flowtechonline.com
2.2

Inputs

Magnetic Pickup:
Frequency Range:
Signal Level:
Opto-Isolated DC Pulse:
Frequency Range:
Signal Level:
Internal Pull-Up
Low (Logic 0):
Min Pulse width:
Contact Closure:
Frequency Range:
Internal Pull-up:
Reset:
Signal Type:
Min Time On:
Internal Pull-up:
External Magnet
MCP/RF Pickup
2.3

DC Power/Loop Powered

Voltage:
Current:
Loop Burden:
Supply Backup:
Battery Life:
Protection:
2.4

Analog Output

Scale:
Accuracy:
Temperature drift:
Update Time:
Protection:
HIT-4U
Features and Specifications 9
0.2 Hz to 5000 Hz.
30 mV to 30 V
P-P P-P
0 Hz to 3000 Hz.
0 to +DC pulse.
10 kΩ to +DC
< 1 VDC
0.1 msec
0 Hz to 5000 Hz
220 kΩ to +3.3 VDC
Contact closure
25 msec
35 kΩ to +3.3 VDC
8 to 30 VDC
< 24 mA
8 VDC maximum
Two (C) Size Lithium or battery pack for
Ex systems
2 years typical-Two (C) size battery
1 year typical-Ex system battery pack
Reverse polarity protected
4 – 20 mA follows rate.
0.02% of Full Scale @ 20ºC.
40 ppm/°C
0.125 seconds.
Reverse polarity protected
.
HP-327