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MTN028837-D02
PM5020 Dual-Channel Benchtop Power and Energy Meter
Chapter 5 Specifications
Pin
Function
Description
7
PRESENT
Sensor Recognition, NTC Input. For Custom Sensors: Connect via a
1kW – 10kW Resistor to Pin 3 (AGND) to Enable a Custom
Sensor
8
TH+ / TH Q1
Thermal /
Thermal Position Sensor Input Quadrant 1
9
TH Q2
Thermal Position Sensor Input Quadrant 2
5.2 Pin Output Connector RS232
The PM5020 as a RS232 serial DE-9 connector. The Pins are assigned as follows:
Pin
Function
Description
1
N.C.
Not Connected
2
TxD
RS232: Connect to PC Terminal RxD (PC DE-9 Pin2)
3
RxD
RS232: Connect to PC Terminal TxD (PC DE-9 Pin3)
4
N.C.
Not Connected
5
GND
RS232 Signal Ground: Connect to PC Terminal Ground (PC DE-9 Pin5)
6
N.C.
Not Connected
7
N.C.
Not Connected
8
N.C.
Not Connected
9
N.C.
Not Connected
5.3 Pin Digital I/O
The PM5020 has a Digital I/O Connector. The Pins are assigned as follows:
