Thermocouple temperature transmitter HD978TR1
Sakaki Corporation Co., Ltd.
About This Product
■Summary
・DC4~20mA output thermocouple (K・J・T・N) temperature transmitter
・Thermocouple input scaling possible
・DIN rail mounting type
・RS232C・PC control, free software
The HD978TR1 and HD978TR2 are 2-wire, 4-20mA output temperature transmitters with scalable K, J, T, and N thermocouple inputs. Converts the voltage signal from a thermocouple into a linear 4-20mA analog output signal. Adoption of digital devices achieves excellent accuracy and stability.
The temperature range corresponding to the 4-20mA (or 20-4mA) output can be freely scaled within the measurement range of each thermocouple (minimum span is 50°C). Thermocouple range and type can be easily set with dip switches. The transmitter is equipped with an LED that is very useful as it alerts you to alarm conditions (such as a bad sensor connection) during configuration operations.
The transmitter also has reverse polarity protection. HD978TR1 and HD978TR2 are suitable for mounting on 35mm DIN rails. In addition to the 4-20mA analog output, the HD978TR2 features a 3½-digit (10mm character height) digital display to display the measured temperature.
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Product
Thermocouple temperature transmitter HD978TR1
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Handling Company
Sakaki Corporation Co., Ltd.
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Categories
1 Models of Thermocouple temperature transmitter HD978TR1
| Product Image | Part Number | Price (excluding tax) | Accuracy | Cold junction temperature range | Connection | Conversion speed | Effects of power supply voltage fluctuations | Input/output isolation | LED (red) display | Linearization | Load resistance | Measuring range (thermocouple) | Minimum measurement span | Operating/storage temperature | Output type | Power supply | Preheating time | Resolution | Sensor | Standard setting range |
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HD978TR1 |
Available upon quote | ±0.04%FS±0.04%rdg or 0.5℃ (whichever is larger) | 0~70℃ | 2 wire system | 2 times/second | 0.4μA/V | DC50V (confirmed at 250V) | Lights up during setting operation, thermocouple abnormality, or disconnection. | EN60584-1-2, ASTM E230-ANSI (MC96-1) |
RLmax = (Vdc-9) /0.022 At RLmax = 680Ω, Vdc = DC24V |
K: -200~+1,200℃ T: -200~+300℃ J: -200~+800℃ N: -200~+1,200℃ | 50℃ | Operating temperature: 0~70℃, storage temperature: -40~+80℃ | 4~20mA (or 20~4mA), 22mA output for poor connection or abnormality of 2-wire connected sensor | DC9~30V (with reverse polarity protection) | 2 minutes | 4μA | Thermocouple K, J, T, N | Tc=K, range=0~1,000℃ |
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