UM-0090-B1E
DT90 Range User Manual
Page 22
RG
Part C
– Sensors & Channels
Overview
This section describes how to use the DT90's analog, digital and serial inputs to measure many different physical
quantities. The focus here is on the measurement process
– connecting up a sensor and successfully reading it.
The following topics are covered for each sensor type:
An overview of how a measurement is made
Wiring configurations
– how to physically connect to the DT90's input terminals.
The applicable DT90 channel types and channel options
– that is, how to program the DT90 to read the
particular sensor or measure the particular quantity.
This section also includes some general information about how the DT90's analog measurement system works, and how
to get the best out of it.
What Can Be Measured?
Analog channel types:
voltage
current and current loops
RTD (PT100)
Digital channel types:
pulse counters
Serial channel types:
SDI-12
MODBUS RTU
Connector and Pin Assignment
Figure 22: Connectors setup for DT90L, analog (green), serial (brown), and digital (blue)
Figure 23: Connectors setup for DT90N, serial (brown) and digital (blue)
There are two connector setup within DT90 depending on model.
DT90L (Lite model) has 7 connectors, while DT90N (Nano model) has 3 connectors
-
Connector PC for power and external communication
-
Connector A1, A2, A3 and A4 for analog signal
– not available in DT90N
-
Connector D1 and D2 for digital/ serial signal.
.
PC
A1
A2
A3
A4
D1
D2
PC
D1
D2
