SKU: XC-523 CONSOLE Category:

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


The Apex Instruments XC-523 Isokinetic Source Sampling Console is manufactured to conform to the construction design criteria and specifications cited in U.S. EPA Method 5, Code of Federal Regulations (40 CFR Part 60) and APTD-0581 documents.  

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


  • Precision gas meter with orifice  
  • Rugged, lightweight and stackable roto-molded case with two ergonomic handles and carrying strap for easy transport  
  • Removable 19-inch front panel  
  • Non-reversible sample pump connections  
  • Color-coded thermocouple jacks 
  • Bright, easy-to-read temperature displays  
  • Easy-leveling dual-column manometer
  • Stainless steel quick connects and fittings


Dry gas meter, DIGI-SK25: 

The new DIGI-SK25 is fitted with an optical encoder and an LED totalizer which receives incoming pulses and multiplies them by the scaling factor to obtain measured volume.   

The DIGI-SK25’s features include: 

  • A high-resolution optical encoder with 400 pulses per revolution  
  • Bright, easy-to-read 8-digit LED totalizer 
  • Quadrature sensing prevents false counts due to vibrations 
  • Totalizes up to 999.9999 ft3 
  • Accuracy less than 1.5%  
  • Multi-chamber positive displacement meter (fitted with a quadrature encoder) 
  • Qmax for air 68 lpm (2.4 ft3/min) at 220 Pa 
  • Qmin 0.00007 ft3 
  • Cyclic volume 0.025 ft3 
  • 400 pulses per revolution 
  • Type-K thermocouple for exit temperature 


  • Dual-inclined/vertical manometer for determining stack velocity and sample flow rate 
  • Inclined range 0-1.0” H20 with 0.01 divisions, vertical range 1-10 in H2O with 0.1 divisions 
  • Fabricated from solid acrylic, precision-bored, accurate to +/- 1%, convenient self-sealing chrome-plated brass quick-connects with Viton O-rings, supplied with plastic plugs for positive secondary seal 

Temperature Display: 

  • Panel mount digital thermometer 
  • Bright red LED display 
  • Range -157° to 1999°F, with separate 7-channel selector switch 

Volume Display: 

  • Panel mount 
  • Bright red LED display totalizer 
  • Resettable 

Temperature Controllers For Probe And Oven: 

  • Fuji PXR3 compact, 1/32 DIN self-tuning PID temperature controller with 3-button keypad 
  • SSR driver for 25-amp solid state relay 
  • Type-K thermocouple jack for input °C/°F selectable, -200°C to 1372°C range. (-328°F to 2502°F) 

Vacuum Gauge: 

  • Dual-scale vacuum gauge, 0-30 inHg / 0-100 kPa 

Sample Pump Connections: 

  • 3/8-inch quick connects, stainless steel, non-reversible 

Umbilical Connections: 

  • Sample inlet: 1/2-inch stainless steel quick connect 
  • Pitot lines: 1/4-inch (3/8-inch optional) stainless steel quick connect 
  • Electrical: 4 conductor circular connector 
  • Thermocouples: 6 type-K inputs, standard size 


  • 4 conductor circular connector 
  • Thermocouples 
  • 6 type-K inputs, standard size 

Power: 120 V at 60 Hz standard, or 240 V at 50 Hz optional 

Dimensions: 23” x 21” x 12” (58 x 53 x 30cm) 19-inch panel 

Weight: 43 lbs. (19.5 kg) 

Additional information

Weight N/A
Dimensions N/A