| Model |
HE-960CW |
| Measurement method |
2-electrode method |
| Sensor input |
2-channel (for concurrent measurement with sensors isolated each other) |
| Temperature sensor specifications |
Platinum resistance 1000Ω/0°C coefficient 3850ppm/°C standard |
| Measuring range |
Cell constant |
(/cm) |
0.01 |
0.1 |
1.0 |
| Conductivity |
μS/cm |
2.000/20.00 |
20.00/200.0 |
200.0/2000 |
| |
mS/m |
0.2000/2.000 |
2.000/20.00 |
20.00/200.0 |
| TDS conversion |
mg/L |
2.000/20.00 |
20.00/200.0 |
200.0/2000 |
| Temperature: 0°C to 100°C (Select your desired decimal point from 0, 1, and 2 digits) |
| Desalination rate: 0.0% to 100% |
| Conductivity difference: Depends on measurement range of sensor 2 (CH2) |
| Repeatability |
Conductivity display : Within ±0.5% of the full scale
TDSdisplay : Within±1.5% of the full scale |
(in equivalent input) |
| Linearity |
Conductivity display : Within ±0.5% of the full scale
TDS display : Within±1.5% of the full scale |
| Transmission output |
Number of outputs : 4
4mA to 20mA DC/0mA to 20mA DC : input/output isolated type
Maximum load resistance : 900Ω
Transmission output range : Freely selectable within the measurement range
However, repeatability and linearity will remain accurate to the separately set measuring range.
(Negative terminals of each transmission output channel are connected inside and thus have the same electric potential.) |
| Contact output |
Number of output : 4 points
Alarm contact output (R1,R2,R3,R4)
- Contact type : relay contact, R1, R2, R3 : SPST
Contact type : relay contact, R4 : SPDT
- Contact rating : 240V AC 3A and 30V DC, 3A(resistance load)
- Contact function : selectable from upper/lower limit action (ON/OFF control), delay, and hysteresis
- Output contents : selectable from the selected measurement, USP assessment, anomaly alarm, and maintenance.
(However, R1 and R2, R3 and R4 share the COMMON contacts respectively.) |
| Communication output |
RS-485 input/output |
| Calibration function |
Conductivity : Based on the specified compensation coefficient for the cell constant (parameter input)
Temperature : Calibrated by comparing with the reference thermometer
TDS: Conversion using a user-defined coefficient value(0.30 to 1.00) |
| Transmission output hold feature |
Selectable from the Previous value hold and the Optional value hold.
(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 characteristic of NaCl (reference temperature : 5°C to 95°C)
·Arbitrary temperature coefficient entry
(reference temperature : 5°C to 95°C, temperature coefficient : ±5%/°C)
(In the deionized water area, however, the temperature compensation for deionized Water is automatically performed in both NaCl and arbitrary temperature coefficient Compensation settings.) |
| Temperature compensation range |
0°C to 100°C |
| Ambient environment |
Temperature: -5°C to 55°C, Relative humidity: 20% to 85%(without dew condensation) |
| Power supply |
100V to 240V AC ±10%, 50/60Hz, 25VA(max) |
| Protective structure |
Panel: IP65, Rear case: IP20, Terminal: IP00( Indoor-use panel installation type) |
| Mass |
Approx. 550g |
| Conforming standards |
CE Marking, FCC Part15 |
