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The SRT-77 temperature meter has one input: thermoresistance (Pt100/500/1000) or thermocouple (K, S, J, T, N, R, B, E). Measurement is linearised by the polynomial characteristics. The device with thermocouple input has additional measurement range (-10...90 mV) mainly for diagnostics of measurement circuits. The main advantage of regulator are two rows of display. The first one presents measuring value, second one - programmed values: max and min. 1 or 2 relay (or OC) outputs make it possible to control heating / cooling processes. The RS-485 enables data transmission in production process monitoring systems. The REL / OC control outputs can adjust the level of measured signal and are controlled according to one or two threshold values. The meter can be configured with the local keyboard or free S-Config software via the RS-485 communication port.
| Number of inputs |
1
|
| Input type |
RTD
TC
voltage (mV)
|
| Input range |
Pt100, Pt500, Pt1000: -100...+600°C
TC K: -200...+1370°C, S: -50...+1768°C, J: -210...+1200°C, T: -200...+400°C, N: -200...+1300°C, R: -50...+1768°C, B: +250...+1820°C, E: -200...+1000°C
-10...90mV
|
| Output type |
Open Collector: I=30 mA, U=30V DC, P=100 mW
relay I=1A, U=30V DC/250V AC (cosø=1)
|
| Power supply |
16...35V AC, 19...50V DC
85..260V AC/DC
11,4...15V AC/DC
|
| Display |
LED, double: 4 x 13 mm (red) + 4 x 10 mm (green)
|
| Communication Interface |
RS-485 / Modbus RTU
|
| Transmission parameters |
1200...115200 bit/s, 8N1 / 8N2
|
| Operating temperature |
0...+50°C
-20…+50°C
|
| Protection class |
IP 65 (front)
IP 20 (case and connection clips)
optional integrated frame for panel cut-out sealing
|
| Case material |
NORYL-GFN2S E1
|
| Mounting |
panel
|
| Case dimensions |
72 x 72 x 100 mm
|
| Data sheet | |
| Manual for version with RTD input | |
| Manual for version with TC input | |
| Declaration of conformity |
