APEX Instruments XD-502 Flue gas sampling controller (0 – 5” H₂O (1245 Pa))

Display: 4x20 character back-lit transflective liquid crystal display

Gas Meter: Model SK25EX with 100 CPR quadrature encoder; 0.7 L/rev; max 41 L/min

Flow Indicator: Precision machined stainless steel orifice with pressure transducer; range 0 – 5” H₂O (1245 Pa); resolution 0.01” (1 Pa)

Temperature Measurement: 8-channel individually isolated Type-K thermocouple meter; selectable °C/°F; range -200°C to 1372°C (-328°F to 2502°F)

Probe Temperature Control: Compact 1/32 DIN auto-tuning temperature controller with separate 25 A solid state relay; Type-K input jack

Digital Pressure Transducers:

ΔP: ±1.0” (±249 Pa) and ±10.0” (±2491 Pa), bi-directional; resolution 0.001” (1 Pa)

ΔH: ±5.0” (±1245 Pa), bi-directional; resolution 0.01” (1 Pa)

(ΔP automatically selects appropriate transducer based on current flow)

Data Export: USB or wireless; real-time streaming or batch download

Vacuum Gauge: Digital scale; 0 – 30” Hg or 0 – 100 kPa

Umbilical Connection:

Electrical: 4-conductor circular connector with grounded shell

Sample Inlet: 1/2” stainless steel instrumental quick-connect (alternative sizes available)

Pitot Connections: 1/4” stainless steel instrumental quick-connects

Thermocouples: AUX, STACK, PROBE, OVEN, FILTER, EXIT

Power: 120 V, 150 W; 24 V / 6.3 A; IEC C-14 inlet

Dimensions: 17” (H) x 17” (W) x 12” (D) (57 x 33.5 x 61 cm)

Weight: 37 lbs (9.98 kg)

Datasheet