DN15-D50 Fully Automatic Double-Row Water Meter Test Bench (Volumetric method)

Measurement uncertainty: Urel≤0.2% (k=2) 
Flow stability: 1.0% for the start-stop method, 0.2% for other test methods 
Test medium: Purified tap water 
Flow range: 0.004~63 m³/h 
Water supply working pressure: 0.2-0.5 MPa (adjustable); Air source working pressure: 0.4-0.7 MPa 
Equipment operating temperature: 4~80℃ 
Applicable nominal diameter of tested meters: DN15-DN50 
Applicable meter types: Ordinary mechanical water meters, various smart water meters (IC card meters, NB-IoT valve-controlled meters, MBus meters, etc.), electronic water meters (ultrasonic water meters, electromagnetic water meters, etc.) 
Single-row testing quantity: DN15:10pcs, DN20:8pcs, DN25:6pcs 
Double-row testing quantity: DN15:10pcs, DN20:8pcs, DN25:6pcs, DN32:2 pcs, DN40:2 pcs, DN50:2 pcs 
Test method: Start-stop method 
Water meter tightness test pressure range: 0~2.65 MPa 
Standard volumetric provers: 10L/20L, 50L/105L, 300L/700L 
Liquid level controller: Liquid level switch 
Automatic liquid level reading system: Hikvision camera 
Instantaneous flow indicator (rotameter, accuracy ≤2.5%): 
LZ/W30-15:4-90L/h 
LZ/W30-25:20-500L/h 
LZ/W30-25:120-1600L/h 
LZ/W30-50:500-8000L/h 
LZB-80:7000-40000 L/h 
Meter clamping mechanism: Double-cylinder outward push serial linkage clamper; single pneumatic clamper for front 10 and rear 5 positions, nominal bore Φ50mm, telescopic stroke ≥80mm 
Vacuum system: Differential pressure vacuum generator, vacuum water filling to keep the tested meters filled with water 
Water temperature fluctuation per single measurement: ≤±2℃ 
Circulating water fluctuation coefficient per single cycle: ≤±0.1% 
Meter reading collecting device: First-tier brand Android smartphones (Honor/Xiaomi/vivo) with over 50 million pixels 
Water supply power system equipped with filter: Nanfang pump CHM10-50 (flow 8m³/h, head 48m); TD50-50G/2 (flow 65m³/h, head 30m) 
Available operation modes: Fully automatic, semi-automatic, touch screen manual 
Optional function: Electronic component inspection for water meters with standard format data import available 
Warranty period: 2 years; all kinds of valves are excluded from warranty coverage