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PQube 3 Instruction Manual
Page 10 of 103
2.3
Overview of PQube 3 Ports, Connections, and Controls
A
Coin-cell battery (keeps real time clock
alive when instrument power is lost)
I
10/100 Ethernet RJ-45 port. 48V PoE compatible.
B
USB-1
High-Speed USB 2.0 port for USB
hard drives and adjacent microSD card
slot (format using FAT32 filesystem)
J
USB-2
Standard USB 1.0 port for use with ENV2
environmental probes.
C
Touchscreen display
K
USB-3
Standard USB 1.0 port for use with ENV2
environmental probes.
D
Signal relay output. Normally closed
during recording mode. Opens ½ cycle
after event or device shutdown.
L
Current transformer inputs – nominal 0.333V RMS
(LOW range) or ±10V
pk
(HIGH range)
E
Analog inputs. Maximum ±60VDC or
33VAC to earth. Can be used as
differential inputs.
M
L1, L2, L3 voltage inputs. See page 21 for
maximum voltage ratings.
F
Earth – functional. Use as a reference
point for analog inputs (not needed if
using analog channels in differential
mode).
N
Neutral terminal – optional depending on
your power configuration
G
Digital input. Wetted with 2.4V at 3
microamps. 1.5-volt threshold. 60-volt
tolerant.
O
Not connected.
H
Power supply input. 24VAC, or 24VDC to
48VDC (either polarity) nominal. 20VA
max.
P
Earth – functional. Used as the reference
point for voltage measurements.
IMPORTANT
:
this terminal must be properly
connected to ground for safety, accuracy, and
reliability.
Shop for Power Metering products online at:
1.877.766.5412
www.
PowerMeterStore
.ca