Dräger Narkomed 2B - Gas Delivery System

Section 7
Specifications
Gas Delivery
System
Pipeline inlet connections ...........................DISS/male
Nut with nipple (Canada)
Pipeline inlet pressure ........ 50–55 psi (345–380 kPa) (O
2
,N
2
O, Air)
Pipeline gauge accuracy ........................ ±3psi(0–25 psi)
±2 psi (25–75 psi)
±3 psi (75–100 psi)
Cylinder connections ................... Pin-indexed hanger yokes
(CGA V-1-1994)
Over pressure relief valve ...................... 95psi(655 kPa)
Over pressure relief valve (Canada) ............... 75psi(520 kPa)
(CSA Standard Z168.3-M84)
Fresh gas common outlet ......................... 15mmfemale
(Canada: 15 mm female, 22 mm male)
Fresh gas oxygen concentration (ORC) ................... 25±4%
Oxygen flush flow rate ........................... 55(±10) l/min
Minimum oxygen flow (at 50 psi pipeline pressure) .... 150±50ml/min
Low oxygen supply pressure alarm .................... 34–40 psi
Cylinder gauge accuracy ..................... ±90psi(0–750 psi)
±60 psi (750–2250 psi)
±90 psi (2250–3000 psi)
Cylinder Gas
Pressures
(typical full loads
at 70°F, 21°C)
Oxygen, Air .............................. 1900 psi (13100 kPa)
Nitrous oxide .............................. 745psi(5130 kPa)
Carbon dioxide ............................ 838psi(5770 kPa)
Oxygen-Helium ...........................1900 psi (13100 kPa)
Flowmeter
Accuracy
(at 20°C and
760 mmHg)
Oxygen, Nitrous Oxide, Air
(Fine) ........................... 100–1000 ml/min ±2.5% FS
Oxygen, Nitrous Oxide, Air
(Coarse) .............................. 1–10 l/min ±2.5% FS
Air (Dual Tapered) ................ 0.2–1 l/min ± 50 ml of reading
2–10 l/min ±5% FS
Carbon Dioxide ......................... 0.05–1.0 l/min ±5% FS
Oxygen-Helium ............................ 2–10 l/min ±5% FS
Oxygen, Nitrous Oxide (Fine)
(Optional, Low-Flow) .................20–500 ml/min ±2.5% FS
Oxygen, Nitrous Oxide (Coarse)
(Optional, Low-Flow) ..........0.6-10 l/min ±2.5% FS @ >1 l/min
± 15% of reading @ <1 l/min
Oxygen (Auxiliary Oxygen) ................... 0–10 l/min ±5% FS
7-2