Description
Unique Features
- Continuous measurement of water activity in oil and temperature
- Professional calculation of moisture content in ppm for transformer oil
- Accurate and reliable, robust design under hostile environments
- Convenient local & remote calibration
- Excellent pollution & pressure tolerance
- Compact, easy for integration
- Analog and Digital Signals Output
Specification
| Water activity | |
| Measurement range | 0 … 1 aw |
| Accuracy | 0 … 0.6: ± 0.02 aw |
| 0.6 … 0.9: ± 0.03 aw | |
| 0.9…1: ±0.04 aw | |
| Resolution | 0.001 aw |
| Response time (typical) | < 1 min |
| Water in oil | |
| Measurement range | 0…100ppm, 500ppm, 1000ppm, 2000ppm or customized |
| Accuracy | ±10% or 10ppm (choose the higher one) |
| Temperature | |
| Measurement range | -40 … 120 °C |
| Accuracy (at +25 °C) | ± 0.2 °C |
| Working temperature | -40 … +80 °C |
| Storage temperature | -40 … +80 °C |
| Oil temperature permitted | -40 … +120 °C |
| Output | |
| Digital signal | RS485 MODBUS RTU |
| Analog signal | 4~20mA, resistive load 500Ω |
| Others | |
| Housing material | 316 stainless steel |
| Weight | 200g (transmitter), 270g(package) |
| Package size | 172×117×53 mm carton |
| Ingress Protection | IP66 |
| Mechanical connections | G 1/2″ ISO or 1/2″ NPT |
| Pressure range | Max 100 bar (confirm with Kongter for other ranges) |
| Resistance load | 200 … 500 Ω |
| Supply voltage | DC 9V-36V(RS485 communication), DC15V-36V(@4-20mA) |
| Supply current | <5mA+load current |
| Cable specification | M8*1, 6 pin |
| Cable length | 2 m |
| Standard applied | CE certified, EN61326-1，EN61000-3，EN61010 class B |
Option & Parts
Stainless steel filter
USB-RS485 converter
USB-RS232 converter
Seal washer: ISO G1/2”
Connecting cable: 5m, M8 screw thread, 90°bend angle
10m, M8 screw thread, 90°bend angle
2m, M8 screw thread, with LED light
Display and control unit: KT-200D (optional)
Order Info
| KT-300 Moisture in Oil and Temperature Transmitter | ||||||||
| Measurement parameters | aw + T | A | ||||||
| ppm + T 1) | B | |||||||
| aw + ppm + T 1) | C | |||||||
| Signal output | 4-20mA + RS485 | 1 | ||||||
| 0-20mA + RS485 | 2 | |||||||
| 0-5V + RS485 | 3 | |||||||
| RS232 | 4 | |||||||
| Analog output channel 1 | 0 … 1 aw | D | ||||||
| 0 … 100 ppm | E | |||||||
| 0 … ___ ppm | F | |||||||
| Analog output channel 2 | ‐40 … 120°C | 5 | ||||||
| ___ … ___°C | 6 | |||||||
| Mechanical connector | 1/2” NPT | H | ||||||
| Cable length | 2 meters | 7 | ||||||
| 3 meters | 8 | |||||||
- ppm is only applicable to mineral transformer oil. If you need to measure ppm value in other oil, please contact us.
Example for order: KT-300 B1E5H7
Measurement parameters: ppm + T
Signal output: 4‐20mA + RS485
Ppm range: 0 … 100 ppm
Temperature range: ‐40 … 120°C
Mechanical connections: 1/2” NPT
Cable length: 2 meters
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