Manufacturer : TECHNO MORIOKA
Model: 7871

Amplifier-integrated water quality sensor dedicated multi-indicator

Surveillance; Alarm; AC power supply; DC power supply; Serial communication; Panel mounting; Water quality information available; Analog output.

The Sensing eye 871 is an indicator specifically designed for integrated amplifier water quality sensors.
It can be installed in a space-saving manner on control panels.
It features a variety of external outputs, including alarm output, analog output, and serial communication.
It also includes an external input for linking with external devices such as flow sensors.

Product-compatible water quality

Product usage

Product Specifications

Model	7871-A100
Display items	Water quality (electrical resistivity, electrical conductivity), water temperature, instantaneous flow rate, cumulative flow rate
Product size	W96 × H96 × D86 mm ; Panel mounting hole opening: 92 mm ; Recommended panel thickness: 1.6 to 2.3 mm
display	7-segment LED: 4 digits Units: MΩ・cm, μS/cm, °C, L/min, m³
output	Alarm output: 1a contact relay, 1 point, AC125V/0.3A, DC24V/1A (resistive load) Transmission output: 4 – 20 mA DC, 1 point Communication function: RS-485 × 1
power supply	DC24V ± 5%
External input	Voltage-free a-contact, NPN open collector, 1 point Pulse-compatible (maximum 1 kHz, DC 24V 500mA supply possible)
Humidity temperature	0-50℃
Ambient humidity	5-80% RH (but no condensation)
Material	PPE
Compatible sensors (sold separately)	7785-A221, 7786-A200 series
option	Mounting bracket, 2 mounting screws, 2 fixing bolts, AC adapter

Compatible sensors

Please select from the 7785/7786 series based on the pipe diameter and material of the piping to be installed.

Model	7785-A221	7786-A213	7786-A252	7786-A251	7786-A221
Product image
Mounting pipe diameter	R1/2	R1/2	R1/2	R1/2	R1/2
Mounting piping material	Resin and metal piping	Resin and metal piping	Resin and metal piping	Resin and metal piping	Resin and metal piping
Operating pressure	0.5MPa or less	0.5MPa or less	0.5MPa or less	0.5MPa or less	0.5MPa or less
temperature	5-90℃	5-90℃	5-90℃	5-90℃	5-90℃
Sensor cable	Includes a 2m dedicated cable.	Includes a 2m dedicated cable.	Includes a 2m dedicated cable.	Includes a 2m dedicated cable.	Includes a 2m dedicated cable.