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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% |
Equipment