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| These sensors are highly accurate water level sensors which detect ultrasonic wave vibrations transmitted through a sensor rod (magnetic distortion line) by means of a float (incorporated into a body that generates magnetism) that moves up and down along the sensor rod. The measurement accuracy is +1mm. Previous types of sensors, in which a float and a weight were suspended by a wire, had an insensitive zone, due to slippage between the pulley and the wire and to inadequate float torque, which could not be ignored. In addition, in the case of the pressure type, after the sensor was exposed to the air, there was difficulty removing the air from it. The magnetic distortion type sensor is of construction such that the problems with previous sensors are solved and highly accurate measurements become possible. |
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| Number of Input Channels |
1 channel |
| Sensor Power Supply |
DC11.5V +0.5V (maximum 30mA) |
| Sensor Signal |
1V to 5V output water level sensor |
| Resolution |
1cm or 1mm |
| Measurement Accuracy |
within +0.1% full scale (including temperature drift throughout the full operating temperature range) |
| Recording Intervals |
1 second, 2 seconds, 5 seconds, 10 seconds, 15 seconds, 20 seconds, 30 seconds, 1 minute, 2 minutes, 5 minutes, 10 minutes, 15 minutes, 20 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 6 hours, 12 hours, 1 day |
| Internal Memory |
256KByte flash memory |
| Data Recovery Method |
PC card (IC DISK CARD) |
| Operation Methods |
rotary switch (MENU switch)
toggle switch (MODE switch)
tact switch (switch for data transfer to PC card) |
| Display |
liquid crystal 20 digits x 2 lines |
| Power Supply |
CR123A lithium batteries (2 main, 2 sub)
DC12V (8V to 15V) external power supply |
| ¢¡Current consumption when external power supply is used. |
| During Standby |
0.1mA(-20oC to 45oC) 0.16mA(55oC) |
| During Water Level Measurement |
150mA |
| During Writing onto |
Card 100mA(MAX) |
| Operating Temperature Range |
-20oC to +55oC, no condensation |
| Exterior Dimensions(mm) |
83(H) x 253(W) x 180(D) (including protrusions), weight 2.3kg |
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| Measurement Range |
standard 300mm
(units can be made with other than the standard measurement range)
Power Supply Voltage: DC12V+15%
(ripple 15% or less) |
| Current Consumption |
30mA or less |
| Linearity |
within +0.1% full scale |
| Hysteresis |
0.6mm or less |
| Signal Output |
DC1 to 5V {units with 4 to 20mA output can also be made (power supply voltage is DC24V)} |
| Output Load Resistance |
5K ohm or higher |
| Temperature Characteristics |
within +100ppm/ oC full scale |
| Temperature Range in Use |
-20oC to +50oC, without freezing |
| Humidity Range in Use |
30 to 95%RH, no condensation |
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