Model WQC-30 2. Specifications and Functions
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Heading Details
Display range
Turbidity Range 0.0 to 88.0NTU (mg/L), 0 to 880NTU (mg/L)
Resolution 0.1NTU (mg/L) (0.0 to 80.0), 1NTU (mg/L) (0 to 800)
Electrical
conductivity
Range 0.0 to 202.0mS/m, 0.000 to 2.020S/m, 0.00 to 20.20S/m
Resolution Number of significant digits 3 1/2
Salinity Range 0.00 to 4.04% (NaCl)
0.00 to 40.40 (PSS)
Resolution 0.01% (NaCl), 0.01 (PSS)
Dissolved
oxygen
(optional)
Range 0.00 to 22.00mg/L, 0 to 220% (saturation)
Resolution 0.01/0.1mg/L (selectable), 1% (saturation)
Repeatability *3
pH ±0.05 pH
Temperature ±0.5°C
Turbidity ±1% (FS) (±0.8NTU (0.0 to 80.0NTU) , ±8NTU (0 to 800NTU))
Electrical conductivity ±1% (FS) (for each range)
Salinity ±0.04% (NaCl), ±0.42 (PSS)
Dissolved oxygen
(optional)
±0.1mg/L, ±2%
Calibration
pH 1 to 3 point(s) calibration for 4, 7, 9, (10)
Turbidity zero, span calibration
Dissolved oxygen
(optional)
zero, span calibration
Water depth (sensor) Up to 30m (equivalent to 0.3MPa)
Waterproof construction IP67 *4
Print function Interface standard equipment. The printer is an optional item.
RS-232C interface
(Communication conditions) *4, *5
Standard equipment (non-isolated) *6
•
In cases where the sample being measured is grounded (when measuring sea,
ponds, rivers, built-in metal tanks etc.), a commercially available RS-
232C
isolator (signal isolation unit) is required between the instrument unit
(WQC-30) and the connected RS-
232C equipment (personal computer,
sequencer, etc.). This is because the measu
red values may be affected by
ground loops (signal currents circulating through the earth).
DC power supply DC2.4 - 3V 0.3
VA AA alkaline dry cell batteries LR6 (2) or AA rechargeable
nickel metal hydride batteries HR6 (2)
DC5V 0.9VA AC adapter input connection
AC power supply AC100-240V 50/60Hz 7VA AC adapter (optional)
External dimensions Instrument unit: approx. 35 (height) × 68 (width) × 173 (depth) mm
Sensor module: approx. φ55 × 476 (length)
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