Product name | Industrial conductivity meter |
Model | HE-480H |
Measurement method | Electrode type (4-electrode method) |
Cell constant | 1.0/cm |
Measuring range* | Measurement range (S/m) | 0.000 to 2.000 | 0.00 to 20.00 | 0.00 to 50.00 |
Measurement range (mS/cm) | 0.00 to 20.00 | 0.0 to 200.0 | 0.0 to 500.0 |
Seawater salinity conversion value (%) | 0.00 to 4.00 |
NaCl salinity conversion value (%) | 0.0 to 20.0 |
Temperature | 0℃ to 100℃ (The displayed decimal place is selectable among 0, 1, and 2.) |
Repeatability | Conductivity display | Within ±0.5% of the full scale | (in equivalent input) |
Salinity conversion display | Within ±1% of the full scale |
Linearity | Conductivity display | Within ±0.5% of the full scale | (in equivalent input) |
Salinity conversion display | Within ±1% of the full scale |
Transmission output | 4 mA to 20 mA DC: input/output isolated type Maximum load resistance: 900Ω Transmission output range: Freely selectable within the measurement range |
Contact output | Outputs: 2 points Alarm contact output (R1 and R2) Contact type: relay contact, SPDT (1c) Contact rating: 240 V AC, 3 A and 30 V DC, 3 A (resistance load) Contact function: selectable from upper/lower limit operation (ON/OFF control), alarm, and maintenance. |
Calibration function | Conductivity: Based on the specified compensation coefficient for the cell constant (parameter input) Temperature: Calibrated by comparing with the reference thermometer |
Transmission output hold feature | - Previous value hold
- Optional value hold
- Continuous
Selectable from the above (However, only the previous value hold is available in the maintenance mode.) |
Self-diagnosis function | - Sensor diagnosis
Short-circuit and disconnection of the temperature sensor - Out of the measurement range
- A/D converter scale over
- Converter error
|
Temperature compensation | - Temperature characteristics of NaCl
- Freely selectable reference temperature and temperature coefficient
Measurement range | Reference temperature | Temperature coefficient | 0.000 S/m to 2.000 S/m (0.00 mS/cm to 20.00 mS/cm) | 5℃ to 95℃ | ±5%/℃ | 0.00 S/m to 20.00 S/m (0.0 mS/cm to 200.0 mS/cm) | 25℃ | ±3.5%/℃ | 0.00 S/m to 50.00 S/m (0.0 mS/cm to 500.0 mS/cm) | No temperature compensation | - No temperature compensation
|
Temperature compensated range | 0℃ to 100℃ |
Ambient temperature | -5℃ to 45℃ |
Relative humidity | 20% to 85% (without dew condensation) |
Storage temperature | -25℃ to 65℃ |
Power supply | Rated voltage 100 V to 240 V AC, 50/60 Hz, 10 VA (max.) |
Structure | Indoor-use panel installation type Panel case: ABS, Terminal: PBT Panel: IP65 dust and water proof structure |
Protective structure | Panel: IP65 (IEC60529, JIS C0920) Rear case: IP20, Terminal:IP00 Class II device (IEC61010-1) Pollution level 2 (IEC61010-1) |
Conforming standards | CE Marking | EMC Directive: EN61326-1 Low Voltage Directive: EN61010-1 RoHS Directive: EN50581 |
FCC Rule | FCC Part15 |
External dimensions | 48 (W) mm × 96 (H) mm × 115 (D) mm Case depth: approx. 105 mm |
Mass | Approx. 400 g |
Compatible sensors | FES series conductivity sensor, cell constant 100/m (1.0/cm) (The measurement range differs depending on the sensor model.) |