| Model |
HE-480C |
| Measurement method |
Electrode type (2-electrode method) |
| Cell constant |
0.01/cm, 0.1/cm, or 1.0/cm |
Temperature sensor
specifications |
Platinum resistance 1000Ω/0°C; |
| Measuring range |
Cell constant (/cm) |
0.01 |
0.1 |
1.0 |
Measurement range
(μS/cm) |
2.000/20.00 |
20.00/200.0 |
200.0/2000 |
Measurement range
(mS/m) |
0.2000/2.000 |
2.000/20.00 |
20.00/200.0 |
TDS conversion
(mg/L) |
2.00/20.0 |
20.0/200 |
200/2000 |
| 0°C to 100°C (The displayed decimal place is selectable among 0, 1,and 2.) |
| Repeatability Within |
Conductivity display |
Within ±0.5% of the full scale |
(in equivalent input) |
TDS conversion
display |
Within ±0.5% of the full scale |
| Linearity Within |
Conductivity display |
Within ±0.5% of the full scale |
(in equivalent input) |
TDS conversion
display |
Within ±1.5% 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
Temperature
TDS |
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
· Out of the measurement range
· A/D converter scale over
· Converter error |
Temperature
compensation |
· Based on the temperature characteristics of extra deionized water (reference
temperature:25°C)
· Based on the reference temperature and user-defined temperature coefficient
(reference temperature: 5°C to 95°C, temperature coefficient ±5%/°C)
· Based on the temperature characteristics of NaCl
· No temperature compensation |
| Power supply |
Rated voltage 100 V to 240 V AC, 50/60 Hz, 10 VA (max.) |
| Protective structure |
Panel: IP65 (IEC60529, JIS C0920) |
| Conforming standards |
CE Marking
FCC Rule |
External
dimensions |
48(W) mm x 96 (H) mm x 115 (D) mm
Case depth: approx. 105 mm (when panel-mounted) |
| Mass |
Approx. 400 g |
Compatible
sensors |
conductivity sensor; cell constant: 0.01/cm, 0.1/cm, or 1.0/cm |
