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Table of Contents
Summary of Contents for QMTECH QMT 7MS028 Series
- Page 1 Operating & Maintenance manual Line pressure regulator Art nr QMT 7MS028XXX QMT 7MS035XXX QMT 7MS042XXX QMT 7MS054XXX Website/ e-post Address Phone Telefax www.qmt3.com Amerikavägen 6 +46(0)480 44 02 00 +46(0)480 44 00 10 info@qmt3.com 393 56 KALMAR, Sweden...
- Page 2 Contents General instructions Line pressure regulator principles Flow data Flow chart Operating instructions:Normal operation Reference diagram Operating instructions: Alarm Operation and Maintenance Installation instructions Wiring diagram Labeling / manufacturing control Spare parts...
- Page 3 General instructions These instructions are for the users to receive information about the line pressure regulator unit function and design. Read the instructions with the line pressure regulator in place so that you can quickly and easily find all the controls. The line pressure regulator is part of the medical gas pipeline system, and it is therefore subject to the inspections and controls specified in EN ISO 7396-1 and national standard SIS HB 370.
- Page 4 Line pressure regulator principle Qmt-tech's line pressure regulator (pressure stabilizing unit) is intended to regulate the pressure of medical gases from nominal supply system pressure to nominal distribution pressure. According to the principle of single fault condition*, the unit contains two mutually independent operating circuits. One is intended for normal operation and the other as a reserve during, for example, service and inspection.
- Page 5 Line pressure regulator principles The inlet valves (3) must normally be open, the handles set in a vertical position. The outlet valve (5) should normally be open for the circuit in operation, the handle set in a vertical position. You can select the operating side by opening one outlet valve and closing the other outlet valve.
- Page 6 Operating instructions: Alarm The pressure transducers sends a signal to the alarm unit which sounds an alarm when the pressure rises above or decreases below set thresholds. When the alarm sounds, take the following steps: 1. Acknowledge the alarm. 2. Check whether the alarm indicates high or low pressure. If the indicated pressure is correct, can be a malfunction to the alarm system or the pressure has returned to normal operating pressure.
- Page 7 Installation instructions Mounting: • Fasten the bottom plate to the wall with required screws (4 pcs). • For all gases except Air and AIR for driving surgical tools, the outlet pipe from the safety relief valves must be evacuated to the outside of the building according to EN 7396-1 and SIS HB 370.
- Page 8 Wiring diagram Each pressure transducers and contact gauges is equipped with a 3 m long cable. 9-24 VDC Pressure sensor 4-20 mA 1 (Brown) Connect to low alarm 4 (Black) Connect to common conductor Contact gauge 2 (Blue) Connect to high alarm Labeling / Manufacturing control Each individual is marked with a data plate containing the serial number, date and the tester's...
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