General type temperature transmitter

Model: T990

 

Service intended
These transmitters are recommended be used in the situation where the application of RTD signals to carry to a long distance or to guard against the heavy electrical field noise. The transmitters convert RTD inputs to an analog signal for a direct interface with indicators, recorders, controllers, PLC, DCS systems, and these can be used for a wide range of applications in process control, automatic machinery and hydraulic or pneumatic system design.

 

Advantages
- Two wire 4 - 20 mA current output signal
- RTD input
- Measuring range from -50 ~ 400
- Fixed range
- Excellent accuracy and long term stability
- Low - cost
- Miniature design

 

Specification

 

Electrical specification

Excitation voltage : 12 ~ 36 V
Load resistance : Max. 500Ω at 24 V
Influence of excitation : 0.01% FSO/V
Burnout : Upscale (Approx. 23 mA DC) or
Down scale (Approx. 4 mA DC)
Reverse polarity : Protected
Shock resistance : No change in performance after
10Gs for 11ms
Vibration : 5g (10 ~ 2,000 Hz)
Response time (10 ~ 90%) : ±0.5 seconds
Adjustment range : ±15% FSO/zero and span

 

Performance specification
Accuracy : ±0.2% FSO
Non - linearity : Better than 0.01% FSO
Repeatability : Better than 0.05% FSO
Long term stability : Better than 0.05% FSO per month
Ambient temperature limits : -20 ~ 70
Ambient humidity limits : 5 ~ 95% R.H

 

Input
Measuring element : Pt 100Ω at 0

 

Output
Current output
Electrical connection type : 2-wire technique
Full scale output signal : 20 mA ±0.2%
Zero measured output : 4 mA ±0.03%
Other output signals available on request

 

Download:  CATALOG 

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