Specifications

Oxygen(gas) mass flow meter
1.Accuracy:-2%~ +2%
2.Pressure: 0.1MPa
3.Environment temperature: 0 ~ 50centigrade

 QZL oxygen(gas) mass flow meter with displayer

 

Introduction

QZL mass flow meter is a high accuracy measuring flow meter. It can measure very low flowing speed of medium and high speed flowing up to 200L per minute. The flow meter is able to measure, display reading and output current signal of 4 – 20mA for long distance computer control and alarming system. The equipment solved the problem of measuring low flowing rate. The QZL mass flow meter playing an important part in IC industry, special materials, chemical industry, the petroleum industry, medical, environment protection, etc. It widely used in gas analyzer, low vacuum control, process control, oxygen supply, anesthesia control apparatus, micro-reactor, capillary measurements, and medical breathing apparatus etc. The QZL mass flow meter is the best flow meter for gaseous mass measuring and controlling in many kinds of industry and research group

 

Specification

asuring range available in: 0-30mL/min, 0-100mL/min, 0-200mL/min, 0-1L/min, 0-5L/min, 0-6L/min, 0- 10L/min,0-15L/min, 0-20L/min, 0-100L/min, 0-200L/min.

2 Accuracy: ±2%

3 Response circus: 0.5 sec

4 Pressure: 0.1MPa

5 Linear expansion: 2%

6 Environment temperature: 0 ~ 50 °C

7 Input signal: 1 ~ 5V

8 Output signal: 4 -20mA, DC

9 Power supply: 100 – 240V AC/50 – 60Hz

10 Power loss: ≤5W

11 Facial size available in (mm): 96x48, 96x96, 160x80

12 Visual reading area available in (mm): 92x45, 92x92, 152x76

 

Principle and structure

QZL mass flow meter is working by thermal theory, sensor output voltage proportional to the mass of air or other gas which flow through the internal sensing element. Signal output will be passed onto the second part of the meter which will display the reading and output DC signal for long distance computer control.

 

Installation

QZL requires to be installed paralleled; filter is required at the input connection to prevent blocking of the equipment.

1. Lead of the second part of the equipment is better not to be fitted paralleled with main power supply cable. Shield cable is required for signal output, and better to be fitted individually. Earthing the cable will minimize electromagnetic interference. Power supply is better to be individually than using the electric power.
2. The equipment has been adjusted and password protected at factory. The connection shown as picture:

Please specify other special requirements when ordering for temperature & pressure compensation, RS485/RS232 communicator, and parallel series printer socket and/or relay multi-control multi-limit alarming.