© 2021 All rights reserved. Data subject to change without notice.
11
Rev. E | 2021.03
LPT - Operation Manual
ELECTRICAL
Power Requirement
2-wire mode
3-wire mode
4-wire mode
16 - 30 VDC, 1 W, Class 2
16 - 30 VDC, 1 W, Class 2
12 - 27 VAC, 50 - 60 Hz, 1 VA, Class 2
Use Class 2 transformer. See Section
6.7 Wiring Connections
.
Current Draw
Maximum 25 mA
Outputs
Linear 4 - 20 mA
Maximum 216 Ω load (wiring plus termination resistor) at 16 VDC
Maximum 316 Ω load (wiring plus termination resistor) at 12 VAC
Wiring
VDC two or three conductor shielded 18 awg (or larger) stranded
within conduit
VAC four conductor shielded 18 awg (or larger) stranded within
conduit (refer to Section
6.7.2
W
ire Gauge vs. Run Length
)
Fuse
Automatic resetting thermal
Indicator
Solid Green: Power ON
Flashing Green (50% duty cycle): Warm up
Flashing Green (short OFF, long ON): Fault mode
LED OFF: No Power or 4-20 mA “Open Loop” (unit won’t operate)
ENVIRONMENTAL
(sensor dependant)
Operating Temperature
-20°C to 40°C (-4°F to 104°F)
