HRT-370
Quick Start
v1.0, September 2017
What’s in the box?
In addition to this guide, the package includes the following items:
HRT-370 CD
Screw Driver
(1C016)
1
Application Structure
The HRT-370 module is a HART signal Filter. When connecting
HRT-370 to a HART instrument, it splits the HART slave signal to
two channels, one keeps the original HART signal and another
filers the HART digital signal out to output a pure analog signal.
Therefore, users can make both HART and analog current data
collection and processing easier and more precise by applying
HRT-370 in the HART network.
Technical support：[email protected] P1
2
Appearance
2
1
Technical support：[email protected]
P2
5
4
3
No. Description
1 LED indicators (PWR, HART, AO)
2 Power connector (+VS, GND)
3 Analog Output connector (Iout+, Iout-)
4 HART Slave Device connector (LP+, IN+, IN-)
5 HART Master Device connector (H+, H-)
3
Wire connections and pin assignments
Top View Bottom View
Pin Name Description
9 GND
10 +VS
Power
+10 ~ +30 VDC
14 Iout-
15 Iout+
AO
17 LP+
18 IN+
19 IN-
HART Slave
21 H+
22 H-
HART Master
Technical support：[email protected] P3
4
LED Indicator
There are 3 LEDs display on the front of HRT-370:
(1) PWR: indicates module power status
(2) HART: indicates communication status of HART
(3) AO: indicates analog output status
The below table listed the description of LEDs status.
LED Name LED Status LED Description
ON Module power supply normally
Power
OFF Module power supply failed
ON HART slave device connected
HART
OFF HART slave device disconnected
ON Analog output loop connected
AO
OFF Analog output loop disconnected
Technical support：[email protected] P4
5
Wiring
[ HART input wiring : (HRT-370 has built-in 250Ω resistor) ]
(1) External Power:
Technical support：[email protected]
P5
(2) Module Loop
Power : (HRT-370 supports to provide +30V)
IN-
IN+
-
HART
Device
+
+
-
IN+
LP+
+
HART
Device
-
[ Analog Output wiring ]
M-7019 is using as an example of AI module to connect with HRT-370.
Technical support：[email protected]
P6
[ HART
Output wiring ]
HART gateways or converters can be connected with HRT-370 to exam
HART communication
Please remember to switch off the built-in
resistor of the connected module
Iout-
Iout+
+
Load
-
H+
H-
+
-
HART
Master
-
1
-
2
-
3
-
4
-
5
-
6
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