Temperature Transmitter

STT 648 Smart HART temperature transmitter isolation module 1.Output signal:4-20mA 2.All input 3.All isolation

STT 648 Smart HART temperature transmitter isolation module

1. Summarize

STT648 HART temperature transmitter module is specialize used for high capability HART temperature transmitter. It supports PT50, PT100, PT 1000 RTD and E,J,B,K,N,R,S,T Thermocouple, also support mA signal and resistance signal, isolation

voltage is DC1000V.Before using the STT648, pls read this use manaul carefully,

and according to this manual to operate. If you have any problems, pls contact with our company freely, we will reply and resolve the problem soonest!

2. Hardware part

2.1 Power

This module supply power range DC10V~32V,insert from "Power Terminals" port.

This module internally installed with reverse voltage to protect the circuit, reverse power will not damage the module.

2.2 Circuit Diagram

Output signal	4-20mA+HART protocol (two-wire system)
HART transmitter power supply voltage	DC10V~32V
Damping	0-32 seconds adjustable
Data refresh rate	2 nd / S
Accuracy	± 0.05%
Stability	±0.2%/year
Work temperature	-40C~+85C(LCD Operating temperature range:  -20C~+70C)
Dimension	D44mm× 25mm
Anti-Mechanical Vibration resistance	10 ~ 60HZ, 0.21mm sinusoidal wave
Anti-RF interference	IEC61000-4-3, 20V / M, 80 ~ 1000MHZ

Main sensor accuracy:

Type	Range	Mini. range	Digital Accuracy	D/A accuracy
2,3,4 wire RTD	C	C	C
PT50	-200~850	10	±0.15	0.04%
PT100	-200~850	10	±0.15	0.04%
PT500	-200~850	10	±0.1	0.04%
PT1000	-200~850	10	±0.1	0.04%
TC				0.04%
B Type	150~1820	25	±1.0	0.04%
E Type	-200~1000	25	±0.4	0.04%
J Type	-210~1200	25	±0.4	0.04%
K Type	-200~1372	25	±0.4	0.04%
N Type	-200~1300	25	±0.4	0.04%
R Type	0~1768	25	±0.8	0.04%
S Type	0~1768	25	±0.8	0.04%
T Type	-200~400	25	±0.4	0.04%

Temperature Transmitter