The Apex XC-260 Manual Source Sampler is a low-price, portable, field-proven meter console that is easy to use, and ideal for sampling mercury emissions based on CFR 40, Part 60, Method 30B.

The heart of the Apex Instruments manual system is the XC-260 Source Sampler, a precision meter console used for collecting mercury emissions. The average mercury concentration for the sampling period is determined by using the sample volumes measured by the dry gas meters and the results of the sorbent trap analysis.

Three flow rate configurations are offered; 100-1000 cubic centimeters per minute, 200-2400 cubic centimeters per minute, or 200-4000 cubic centimeters per minute.

All applicable components are rated 120 V at 60 Hz or 240 V at 50 Hz.

SKU: XC-260 CONSOLE Category:

Note: The images shown are for illustration purposes only and may not be an exact representation of the product.


The XC-260 Mercury Source Sampler is designed for performance testing, baseline studies, and profiling.  This low-cost, easy-to-use, portable, and field-proven audit system is ideal for sampling mercury emissions based on Reference Method 30B of the U.S. EPA Appendix K, 40 CFR, Part 60.

The XC-260 Mercury Audit System is used for manual sampling of gaseous mercury emissions over a period of several minutes to several hours. The system extracts two separate flue gas samples through co-located sorbent traps attached to the end of a heated sample probe.

Mercury is collected in the sorbent traps for a predetermined sampling period.  The traps are easily transported for analysis.  The average mercury concentration for the sampling period is determined by using the sample volumes measured by the dry gas meters and the results of the sorbent trap analysis.  Sample data is manually recorded at the beginning and end of each sample collection period as well as periodically during the collection period.  All temperature, pressure, and flow measurement data are conveniently displayed and can be easily entered into a spreadsheet for analysis.

The XC-260 source sampler is also ideal for sorbent tube sampling for Method 18, the measurement of gaseous organic compound emissions by gas chromatography.


  • Dual independent flow paths
  • Dual dry gas meters with digital displays
  • Coarse and fine valves for precise flow and vacuum control
  • Stainless steel valves and fittings
  • Stainless steel 1/4-inch quick connects
  • Digital temperature controller for probe heater
  • Elapsed digital timers
  • Dual-scale vacuum gauge
  • Rugged and lightweight roto-molded linear low-density polyethylene (LLDPE/LMDE) case with two molded-in ergonomic carrying handles (size 10U)


  • Dry gas meters:
    • Model SK25EX series
    • Positive displacement diaphragm type
    • 0.7 liters per revolution
    • Optical encoder sensor
    • Quadrature pulse output
    • Gas volume totalizer with an eight-digit LCD display
    • 1 cubic cm resolution (standard)
  • Dual-diaphragm sample pumps: (2) 12 VDC motors, max vacuum 20 inHg
  • Probe temperature control:
    • Compact, 1/32 DIN auto-tuning indicating temperature controller with external 25-amp solid-state relay
    • 115 VAC outlet 5-15R, standard type-K jack for input
  • Digital temperature display: 3.5-digit display °F (-157°F to 1999°F), display and controller are resettable for °C upon request (°C is standard for export)
  • Thermocouple inputs: Five external type-K inputs plus two type-K internal gas meter connections
  • Flowmeters:
    • Solid machined acrylic, stainless steel float
    • A: 0.1 – 1.0 LPM
    • B: 0.2 – 2.4 LPM
    • C: 0.2 – 4.0 LPM
  • AC Power: 120 V at 60 Hz or 240 V at 50 Hz optional
  • Dimensions: 23” x 21” x 12” (58 cm x 53 cm x 30.5 cm)
  • Weight: 39 lbs (17.7 kg)


Additional information

Weight 40 lbs
Dimensions 21 × 13 × 21 in