Techno Morioka Co.
TECHMO 7778 Series Sensing Eye778 Amplifier-Integrated Electrical Conductivity Sensor

Manufacturer : TECHNO MORIOKA
Model: 7778 series
Quick-joint structure, ideal for integration into small devices, amplifier-integrated electrical conductivity sensor.
Quick joint connection; confirmation; Amplifier and sensor integrated; DC power supply; No water quality information provided; Analog output.
This is an ultra-compact, amplifier-integrated electrical conductivity sensor (conductivity sensor).
Its quick-joint structure makes connection easy.
Equipped with an analog output (4-20mA), it can be combined with control and display devices such as PLCs for water quality measurement and management.
It supports high water temperatures up to 90°C, making it suitable for use in medical and food processing equipment requiring hot water disinfection. (Pressure resistance requirements apply)
Product-compatible water quality
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Product usage

Product Specifications
| Model | 7778-A151 | 7778-A152 | ||
|---|---|---|---|---|
| Measurement range | 1.5–50 μS/cm | 15–500 μS/cm | ||
| Product size | W76 × D32.4 × H81.2mm (including sensor) | |||
| accuracy | Measurement accuracy: ±3.0% FS (at 25°C water temperature) Repeatability: ±1.0% FS (at equivalent resistance) | |||
| Measurement output signal | 4-20mA DC output (0 to FS = 4 to 20mA) *Connected load resistance: 350Ω or less. If the measured value exceeds the range, the output will be held at approximately 21mA. | |||
| power supply | DC24V±5% 2W or less | |||
| Usage environment | Ambient temperature 5-60°C (if water temperature is 80°C or higher, keep it between 5-45°C or lower) Ambient humidity 5-80%RH (but no condensation) | |||
| Connection port diameter | R3/8 (dedicated fitting) | |||
| cable | 3-core cable, 2000±50mm, AWG28 | |||
| others | Easy connection with quick-joint structure Reduces air bubble buildup in the flow path Reduces the effect of electrode angle on the flow path Selectable tee and elbow connections Achieves space and labor savings | |||
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