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SRT-94

Panel temperature meter SRT-94
Code: SRT-94
  • temperature meter with a large, 20 mm high, LED display
  • input: thermoresistance or thermocouple
  • 0, 2 or 4 REL / OC outputs
  • analogue output: active or passive, power supply output: 24V DC
  • RS-485 / Modbus RTU
  • automatic recognition of 3 and 4-conductor connection (RTD inputs)
  • automatic compensation of TC cold ends temperature
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Description

The SRT-94 meter is designed for temperature measurements. The device is equipped with one resistance-type Pt100/500/1000 input or thermocouple input which can operate with K, S, J, T, N, R, B, and E type thermocouples. The inputs feature with fully linearized characteristics. The 24V DC / 100 mA output is designed to supply measuring transducers, and the RS-485 port 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. Moreover, the meter can be equipped with analogue outputs, according to the customer selection: active current output, passive isolated current output or active voltage output.

Specification
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
0/4...20 mA: active current, operating range 0...24 mA max., load resistance 700 Ω max., resolution 13 bit
4...20 mA: passive current, isolated, operating range 2,8...24 mA max., load resistance 600 Ω@24VDC, resolution 13 bit
0/1...5V, 0/2...10V: active voltage, operating range 0...11V max., load resistance min. 2000 Ω, resolution 13 bit
depends on configuration:
Display
LED, 4 x 20 mm, red
LED, 4 x 20 mm, green
Power supply
16...35V AC, 19...50V DC
85..260V AC/DC
11,4...15V AC/DC
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)
Case material
NORYL-GFN2S E1
Mounting
panel
Case dimensions
96 x 48 x 100 mm
Files
Data sheet
Manual for version with RTD input
Manual for version with TC input
Declaration of conformity