AP200

CO2/H2O Atmospheric Profile System
AP200

AP200

OrderableConfigurable

CO2/H2O Atmospheric Profile System

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Model:
AP200
Item Number:
45102
Warranty:
1 year

Overview

The AP200 is a complete, integrated CO2 and H2O atmospheric profile system. It measures carbon dioxide (CO2) and water vapor (H2O) concentration from up to eight intakes, which are normally spaced along the height of a tower to give a vertical profile. The AP200 is often used in conjunction with an eddy-covariance system to measure the storage term and provide you with a more complete measure of the surface gas exchange.

Key Advantages

Complete, Integrated System
Preprogrammed and low power

Technical Description

Measurements

Primary:

  • CO2 concentration at each intake
  • H2O concentration at each intake
  • System diagnostic word

Secondary:

  • Sample flow rate
  • Sample cell pressure
  • Sample cell temperature
  • Other control variables

Note: Contact the Micromet Group at Campbell Scientific for questions or updates regarding the data logger program.

Benefits

  • Fully integrated system
  • Requires only 13 W (average at 25°C and 12 Vdc)
  • Contains a Campbell Scientific CR1000X Measurement and Control Datalogger
  • Automatically performs CO<sub>2</sub> zero and span
  • Automated temperature and pressure control
  • Data logger program included

Specifications

System Enclosure

Operating Temperature
-30° to +45°C
Power Requirements
10 to 16 Vdc

(voltage)

13 W

(average power at 25°C)
Average power varies from 12.5 W above +35°C to 22.5 W at -30°C.

3.75 A

(45 W) maximum power (cold startup)

Dimensions
52.1 x 44.5 x 29.7 cm

(20.5 x 17.5 x 11.7 in.)

Weight
15.9 kg

(35 lb) for AP200 base model

1 kg

(2.3 lb) for LI-850

272 g

(10 oz) for CR1000KD

154 g

(5.4 oz) for CFM100/NL116

Pump Module

Pump Type
Dual-head diaphragm pump with a brushless dc motor
Mounting
Mounted in an insulated, temperature-controlled box inside system enclosure
Control
Pumping speed is automatically controlled to maintain the pump inlet pressure at the set point
Maximum Pumping Speed
9.0 liters per minute

(LPM)

Pressure Sensor Range
15.0 to 115.0 kPa
Heater
8.0 W

(turns on/off at 2°C)

Warm-up Time
~50 min

(from -30° to +2°C)

Fan
0.7 W

(turns on at 50°C and off at 45°C)

Valve Manifold

Mounting
Mounted inside system enclosure
Inlets
Eight air sample inlets plus one inlet for zero, one inlet for CO2 span, and one inlet for H2O span
Connections
0.25-in Swagelok
Mass Flow Sensor
0 to 1.0 standard liters per minute

(SLPM)

Heater
8.0 W

(turns on/off at 5°C)

Warm-up Time
~20 min

(from -30° to +4°C)

Fan
0.7 W

(turns on at 45°C and off at 43°C)

Intake Assembly

Filter
1.0-in diameter, sintered stainless-steel disk filter, 10-micron pore size
Orifice Heater
2 kohm

(0.07 W at 12 Vdc)

Mixing Volume
750 mL
Sample Connection
0.25 in. Swagelok
Number of Connections for Heater Cable Entry Seals
3

(1 in, 2 out)

Cable Diameter for Heater Cable Entry Seals
2.8 to 6.6 mm

(0.11 to 0.26 in.)

Wire Diameter for Heater Cable Screw Terminals
26 to 12 AWG
Wire Stripping Length for Heater Cable Screw Terminals
5.0 mm

(0.2 in.)

Screw Tightening Torque for Heater Cable Screw Terminals
0.4 N•m
Orifice Inside Diameter
0.178 mm

(0.007 in.)

Dimensions
31 x 12.5 x 19 cm

(12 x 5 x 7.5 in.)

Weight
1.4 kg

(3.1 lb)

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