XD-502 Digital Isokinetic Sampling Console

XD-502 Digital Isokinetic Sampling Console

Lighter. Smaller. Easier.

Overview

The Apex Instruments XD-502 Digital Source Sampling Console is designed to monitor gas velocities, temperatures, pressures, sample flow rates, and volumes while maintaining isokinetic sampling conditions.

This console is compatible with all isokinetic methods, including Other Test Method (OTM)-45 for PFAS sampling.

🚀 50% Lighter! The XD-502 reduces total weight from 80 lbs to 40 lbs by using an internal diaphragm pump. It can also be ordered without an internal pump for use with external pump systems.

🔹 Multi-function transflective display—sunlight-readable
🔹 Easy-to-use 4-button keypad—simplifies auditing and calibration
🔹 Peak 32 microcontroller module—user-adjustable dampening for stable ΔP and ΔH readings

💡 “You’ll want to carry it around like the Stanley Cup!”

Key Features & Specifications

  • Lightweight, rugged case with three heavy-duty stainless-steel handles
  • USB data export—streaming or batch downloads via intuitive console software
  • Sunlight-readable display for indoor & outdoor use
  • SK-25 Precision Dry Gas Meter with digital optical encoder
  • Digital vacuum gauge for precise measurements
  • Digital temperature display with six Type-K inputs + DGM + internal sensors
  • All stainless-steel fittings & control valves for durability
  • Digital PID temperature controllers for probe & oven
  • Digital elapsed timer (hh:mm:ss)
  • Easy-access service design (components mounted in case)

Technical Specifications

  • Display:
    • 4×20 character transflective LCD display
    • Membrane switch for menu navigation & sampling control
  • Dry Gas Meter:
    • Model SK25EX, 100 CPR quadrature encoder
    • 0.7L per rotation, max flow 41 LPM
  • Flow Indicator:
    • Stainless-steel orifice with pressure transducer
    • Range: 0 – 5 inH₂O (1245 Pa), Resolution: 0.01 inH₂O (1 Pa)
  • Temperature Measurement:
    • 8-channel Type-K thermocouple meter (individually isolated)
    • Selectable °C/°F (-200°C to 1372°C / -328°F to 2502°F)
  • Probe Temperature Control:
    • Auto-tuning PID temperature controller (1/32 DIN)
    • 25-amp solid-state relay, Type-K input
  • Digital Pressure Transducers:
    • ΔP: ±1.0” (+/-249 Pa) & ±10.0” (+/-2491 Pa), 0.001” resolution
    • ΔH: ±5.0” (+/-1245 Pa), 0.01” resolution
    • Automatic transducer selection for accurate flow measurement
  • Data Export: USB batch downloads using included software
  • Vacuum Gauge: Digital scale (0-30” Hg / 0-100 kPa)
  • Umbilical Connections:
    • Electrical: 5-pin circular connector with ground
    • Sample Inlet: 1/2” stainless-steel quick-connect (other sizes available)
    • Pitot Lines: 1/4” stainless-steel quick-connects
    • Thermocouples: Aux, Stack, Probe, Oven, Filter, Exit
  • Power Supply: 120V, 150W, 24V/6.3A (IEC C-14 Inlet)
  • Dimensions: H17” × W17” × D12” (43 cm × 43 cm × 30.5 cm)
  • Weight: 40 lbs (18 kg) base
  • Internal Sample Pump:
    • KDF Dual-Head Diaphragm
    • 70 LPM free flow, 21 LPM @ -50 kPa, Max vacuum -85 kPa
    • 24V DC brushless motor

Lighten the Load with a Digitally Enhanced Sampling Console

The XD-502 Console delivers advanced functionality in a lighter, smaller package, making it ideal for field sampling applications.

Data Sheets