Hach WPC-21 Manual Del Usuario página 3

Specifications
Specifications are subject to change without notice.
Specification
Dimensions (W x D x H)
Enclosure
Light source
Detector
Display
Port sizes
Wetted materials
Flow cell
Weight
Installation category
Protection class
Pollution degree
Operating environment
Storage environment
Altitude
Power requirements
Detection method
Calibration
Particle sizes
Coincidence fields
Number of channels
Measurement units
Sensor resolution
Sensor counting efficiency Meets JIS 9925 B-1997 standards
Sample pressure
Sample flow rate
Sample temperature
Details
248 x 114 x 302 mm (9.75 x 4.50 x 11.88 in.) with sensor and mounting brackets
NEMA 4X
780 nm, 5 mW class 3B laser diode; 30,000 hours lifetime
Photodiode
LCD, 4-line x 16-character
Two compression fittings for 0.25-in. OD inlet and outlet tubing
Fused silica, Viton (fluorocarbon) and Kynar (PVDF)
WPC-21: 600 x 600 µm fused silica with AR coatings
WPC-22: 800 x 800 µm fused silica with AR coatings
2.25 kg (5 lb)
II
I
2
WPC-21: 5 to 40 °C (41 to 104 °F), 5 to 90% relative humidity, non-condensing
WPC-22: 5 to 45 °C (41 to 113 °F), 5 to 90% relative humidity, non-condensing
–20 to 60 °C (–4 to 140 °F), 98% relative humidity, non-condensing (maximum)
2000 m (6562 ft) maximum
230 VAC ±15% , 20 VA, 50/60 Hz
Light blocking
WPC-21: Factory calibrated at flow rate of 50 mL/minute, NIST traceable, eight
particle sizes
WPC-22: Factory calibrated at flow rate of 100 mL/minute, NIST traceable, eight
particle sizes
WPC-21: 1.3, 2, 3, 5, 7, 10, 15 and 25 µm
WPC-22: 2, 5, 7, 10, 15, 25, 50 and 100 µm
WPC-21: 10% loss at 25,000 particles/mL
WPC-22: 10% loss at 15,000 particles/mL
Two channels; Channel 1: smallest particle size, Channel 2: one of the other seven
channel sizes (fixed) or all seven particle sizes (scrolling)
Number of particles per mL
Less than 10% at 10 µm as described in ASTM-F658-87
8.3 bar (120 psi) maximum
WPC-21: 45–55 mL/minute
WPC-22: 90–110 mL/minute
0 to 50 °C (32 to 122 °F), non-freezing
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