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Section 2 Technical Specifications
2.1 Dimension
H375A: 228mm×98mm×60mm
(Plug and cable not included)
2.2 HART
®
Connector
a) In conformity with HART Protocol (HCF);
b) Operating mode: intercommunication semiduplex 1200bit/s
c) Receivable voltage: ±40V
d) Creepage current less than 1uA@20
℃
e) Communication distance less than 1500m
f) Isolation mode: isolation between HART communication connector and power supply
g) Isolation overload voltage: 500Vrms
2.3 PC Connector
When connecting to a PC, you must use the PC Communication Adaptor to connect to the
Communicator’s serial port. This port is used for software update. Please contact with us
for the detailed information on software update.
2.4 Power Supply
Power Supply: 4.5V DC;
Electricity Consumption: 91.3mA
（
Standard value under working state
）
1uA
（
Standard value under sleep state
）
2.5 Battery Use
Power Supply: Three AA 1.5V alkaline batteries rechargeable NiCad batteries or NiMH
batteries.
Battery Life: 13 hours (AA Alkaline Batteries)
10.5 hours (1000mA Rechargeable Batteries)
NOTE:
If no operation in 10 minutes, the Communicator will shut down automatically to
save battery life!
2.6 Temperature Requirements
Operating Temperature: 0
℃
~+50
℃
Storage Temperature: -20
℃
~+55
℃
Note: The service life of the LCD display will be shortened if the device is exposed to
sunlight!
2.7 Liquid Crystal Display (LCD)
The LCD is an 8-line by 21 character display that provides communication between you
and the connected device. When you connect to a HART compatible device, the top line of
