DIN rail lightening protection temperature transmitter of thermocouple
width: 12mm
output signal range: 4~20mA,0~20mA,1~5V ...
R7T Series lightening-protection temperature transmitter with thermocouple, used for industrial automation system, receive on-site thermocouple signal input, convert it into analog signal output with the same proportion and corresponding temperature, then isolate and transfer to DCS/PLC, which finally realize the temperature gathering and transmitting in industrial field, meanwhile meet with signal types matching, isolation, interference rejection and improve the system stability function between DCS/PLC. Products of this series characteristically have SPD function, which can efficiently absorb and release the surge energy produced by (external) input induction lightening. Moreover, the three ends (input, output, power) of this series are completely isolated. It contains a variety of combination forms like one-input & one-output, one-input & two-output, two-input & two-output, etc. Width of the shell is only 12mm, which can satisfy the high-density requirements of on-site installation.
General specifications | |
Construction | Ultra-thin terminal connections |
Connect | Phoenix terminals M3 screw connection |
Wire diameter | 0.2-2.5mm2 |
Tightening | 0.5-0.6Nm |
Housing material | Fire resin |
Protection grade | IP20 |
Mounting | EN60715 standard symmetrical 35mmDIN guide |
Dimensions | W12 x H95 x D110 mm |
Weight | about 100g |
Input signal specifications | ||
Input signal range | R temperature measuring scope: -40°C ~ 1700°C S temperature measuring scope: -40°C ~ 1700°C K temperature measuring scope: -150°C ~ 1370°C J temperature measuring scope: -80°C ~ 900°C |
T temperature measuring scope: -160°C ~ 390°C B temperature measuring scope: -320°C ~ 1820°C E temperature measuring scope: -80°C ~ 700°C |
Range of wire resistance | ≥10MW | |
Minimum measure range | R: 600°C S: 600°C K: 120°C J: 100°C | T: 100°C B: 780°C E: 500°C |
Cold junction compensation | internal cold compensation | |
Output signal specifications | ||||||
Output signal range | 4~20mA,0~20mA,1~5V,0~5V,0~10V Vetc signal types output | |||||
Output signal resistance | 0/4~20mA output 0~550W (with short circuit protection) | |||||
| 0~10mA output 0~1100W (with short circuit protection) | |||||
| 0/1~5V output≥500KW (with short circuit protection) | |||||
| 0~10V output≥1MW (with short circuit protection) | |||||
Fault output | output form | 4~20mA | 0~20mA | 1~5V | 0~5V | 0~10V |
| input disconnection | about 23mA | about 23mA | about 5.75V | about 5.75V | about 11.5V |
| input super range limit | 3mA | 21mA | 0.75V | 5.25V | 10.5V |
| input super span ceiling | 22mA | 22mA | 5.5V | 5.5V | 11V |
Typical application:
Ø Field may suffer attack of induction lightening surge.
Ø Field need to transfer the thermocouple or millivolt voltage signal into isolated standard signal.
Ø Field existing grounding potential difference.
Ø Field existing heavy electromagnetic interference.
Ø Protecting DCS or PLC system.
Ø Distributing one signal in two ways.
If you have any further questions, please feel free to contact with us.
