CL31 specifications - AWS810

AWS810 System Description

Document code
M212417EN
Revision
H
ft:locale
en-US
Product
AWS810
Document type
Technical description
CL31 measurement performance
Property Value
Measurement range 0–7.6 km (0–25 000 ft)
Reporting resolution (units selectable) With 5-m resolution: 5 m or 10 ft

With 10-m resolution: 10 m or 30 ft

Reporting interval Programmable 2–20 s, or polling
Measurement interval 2 s default
Distance measurement accuracy against a hard target ±5 m (16 ft)
CL31 inputs and outputs
Property Description/Value
Operating voltage

115/230 V AC

100–127 V AC, 207–253 V AC

Current consumption
Current consumption (maximum) 2.7/1.4 A
Measurement unit 0.1/0.1 A
Internal heater 0.9/0.4 A
Window conditioner heater 1.5/0.8 A
Window blower 0.2/0.1 A
Frequency (min./max.) 50/60 Hz
Battery backup 12 V internal, VRLA (valve regulated lead acid), 2.4 Ah
Overvoltage protection Low-pass filter, VDR
Overvoltage category II
Interfaces
Data
  • RS‑232
  • RS‑485, multidrop, 2‑wire
  • DXL421 modem module
  • LAN (Ethernet) interface option
Maintenance RS‑232
Baud rate
RS-232/RS-‑485 300–57 600 bps
Modem V.21, V.22 300–1200 bps
CL31 operating environment
Property Value

Operating environment

Outdoor use

Use in wet location

Yes

Operating temperature

−50 … +60 °C (−58 … +140 °F)

Operating humidity

0–100 %RH

Wind tolerance Up to 55 m/s (123 mph)
Vibration

Lloyds Register / IEC 60068‑2‑6

5–13.2 Hz, ±1.0 mm

13.2–100 Hz, ±0.79 g

9.1–150 Hz, ±0.5 g

Pollution degree for inside electronics

2

Maximum operating altitude

3000 m (approx. 9800 ft)

IP rating 1

IP65 (measurement unit) Dust-tight. Protected from water jets from any direction.

IPX6 (with radiation shield) : Protected against strong jets of water.

UL 50E rating

Type 4: Dust-tight. Protected from hose-directed water.

CL31 transmitter specifications
Property Value
Laser source Indium gallium arsenide (InGaAs) diode laser
Center wavelength 910 ±10 nm at 25 °C (77 °F)
Operating mode Pulsed
Radiated pattern emitted from the protective housing (measurement unit window)
Maximum average power through 7-mm aperture in the plane of the laser aperture 570 µW
Average pulse power 11 W
Peak power 18.5 W
Average power 16.0 mW
Beam divergence ±0.4 mrad × ±0.7 mrad
Pulse duration 110 ns
Repetition rate 10.0 kHz
Laser classification

Class 1M laser product, IEC 60825‑1:2014 (Edition 3.0) and EN 60825‑1:2014 + A11:2021

Incorporated laser source (CLT321 transmitter)
Peak power 91 W
Maximum average power 82.5 mW
Typical beam divergence ±5 × 12.5 degrees FWHM
Pulse duration 110 ns
Repetition rate 10 kHz
Laser class according to IEC/EN 60825‑1:2014 3B
CL31 mechanical specifications
Property Value
Tilt positions Vertical or 12° tilted
Dimensions
Measurement unit 620 × 235 × 200 mm (24.41 × 9.25 × 7.87 in)
Height with radiation shield 1190 mm (47 in)
Total 1190 × 335 × 324 mm (46.85 × 13.19 × 12.76 in)
Weight
Measurement unit 12 kg (26.46 lb)
Radiation shield and blower 19 kg (41.89 lb)
Total 31 kg (68.34 lb)
Plywood transport container
Container size 1400 × 490 × 450 mm (55.12 × 19.30 × 17.72 in)
Container weight 47 kg (103.62 lb)
1 The IP rating is valid only when the ceilometer is installed according to Vaisala instructions.