Vertical Pointer Variable Area Flowmeter | QTLZ

Vertical Pointer Variable Area Flowmeter QTLZ
Vertical Pointer Variable Area Flowmeter QTLZ
Vertical Pointer Variable Area Flowmeter QTLZ
Vertical Pointer Variable Area Flowmeter QTLZ

Vertical Pointer Variable Area Flowmeter | QTLZ

Vertical Pointer Variable Area Flowmeter  – Overview

This Variable Area Flowmeter adopts advanced technology, without contact and no hysteresis detecting changes in the angles of the magnetic field of the magnetic sensor. It has a high-performance MCU. The LCD displays the instantaneous flow, total flow, loop current, environmental temperature, and damping time. Optional 4~20mA transmission (with HART communication), pulse output, and high and low limit alarm output function. This type of intelligent signal transmitter has high precision and reliability. Suitable for small and medium flow measurement of single-phase liquid or gas with small and medium pipe diameters. Applications include Water Treatment, Food Industry, Pharmaceuticals, Petrochemicals, Paper and Chemicals.

Vertical Pointer Variable Area Flowmeter  – Features

  • Range ratio: 10:1 (Special type 20:1)
  • Accuracy class: 2.5 (Special type 1.5% or 1.0%)
  • Working pressure: DN15~DN50 PN16 (Special type 2.5MPa)
  • Medium temperature: Normalised type -80℃~+220℃
  • Ambient temperature: -40℃~+120℃ (Remote display without LCD≤85℃)
  • Fully welded stainless steel body. Durable casing
  • Independent of medium’s physical and chemical states
  • Suitable for corrosive, toxic and explosive medium environments
  • Interface measurement or level measurement of 2 kinds of medium with different densities
  • Easy-to-read displays on all flow meter types）
  • Two-wire 4~20mADC signal output available
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Description

Vertical Pointer Variable Area Flowmeter | QTLZ

Table 1: Vertical Pointer Variable Area Flowmeter Data Sheet

Measuring range  Water (20℃)                  16~150000 l/h.

Air(0.1013MPa 20℃)       0.5~4000 m3/h.
 Range ratio  10:1(Special type 20:1).
 Accuracy class  2.5(Special type 1.5% or 1.0%).
 Working pressure  DN15~DN50 PN16 (Special type 2.5MPa).

DN80~DN150 PN10 (Special type 1.6MPa).

Pressure rating of jacket 1.6MPa.
 Medium temperature  Normalised type -80℃~+220℃.

High-temperature type 300℃.    Lined with FEP type ≤85℃.
 Ambient temperature  -40℃~+120℃(Remote display without LCD≤85℃).

(Remote display with LCD≤70℃).
 Dielectric viscosity  1/4” NPT, 3/8” NPT 1/2” NPT≤5mPa.s

3/4” NPT,1” NPT ≤250mPa.s
 Output  Standard signal: two-wire system 4 ~ 20mA (with HART communication).

Standard signal: three-wire system 0 ~ 10mA.

Alarm signal:

  1. Two-way relay output.

2. One-way or two-approach switches.

Pulse signal output: 0-1KHz isolated output.
 Process connection  Standard type:24VDC±20%.

AC type:220VAC(85~265VAC) (optional).
 Connection mode  Flange

Thread

Tri-clamp
 Levels of protection  IP65/IP67.
 Ex-mark  Intrinsically safe: ExiaIICT3~6.    Exd type: ExdIICT4~6.

Table 2: Vertical Pointer Variable Area Flowmeter Flow Range

Caliber

(mm)

 Work number Flow range Pressure loss kpa
Water L/h Air m3/h Water Kpa Air
Normal type Anti-corrosion type Normal type
Anti-corrosion type		 Normal type Anti-corrosion type
15 1A 2.5~25 — 0.07~0.7 6.5 – 7.1
1B 4.0~40 2.5~25 0.11~1.1 6.5 5.5 7.2
1C 6.3~63 4.0~40 0.18~1.8 6.6 5.5 7.3
1D 10~100 6.3~63 0.28~2.8 6.6 5.6 7.5
1E 16~160 10~100 0.48~4.8 6.8 5.6 8.0
1F 25~250 16~160 0.7~7.0 7.0 5.8 10.8
1G 40~400 25~250 1.0~10 8.6 6.1 10.0
1H 63~630 40~400 1.6~16 11.1 7.3 14.0
25 2A 100~1000 63~630 3~30 7.0 5.9 7.7
2B 160~1600 100~1000 4.5~45 8.0 6.0 8.8
2C 250~2500 160~1600 7~70 10.8 6.8 12.0
2D 400~4000 250~2500 11~110 15.8 9.2 19.0
40 4A 500~5000 300~3000 12~120 10.8 8.6 9.8
4B 600~6000 350~3500 16~160 12.6 10.4 16.5
50 5A 630~6300 400~4000 18~180 8.1 6.8 8.6
5B 1000~10000 630~6300 25~250 11.0 9.4 10.4
5C 1600~16000 1000~10000 40~400 17.0 14.5 15.5
80 8A 2500~25000 1600~16000 60~600 8.1 6.9 12.9
8B 4000~40000 2500~25000 80~800 9.5 8.0 18.5
100 10A 6300~63000 4000~40000 100~1000 15.0 8.5 19.2
150 15A 20000~100000 — 600~3000 19.2 — 20.3

Table 3: Vertical Pointer Variable Area Flowmeter Model Selection

QTLZ X X X X X X X X X
Indicator Code
Local indicator Z
LCD indicator with output D
Nominal diameter Code
DN15 -15
DN20 -20
DN25 -25
DN40 -40
DN50 -50
DN80 -80
DN100 -100
DN150 -150
Structure Code
Bottom-top /
Left-right (horizontal) H1
Right-left (horizontal) H2
Side-side AA
Bottom -side LA
Thread connection S
Tri-clamp M
Body material Code
304SS R4
316LSS R6L
Hastelloy C Hc4
Titanium Ti
Liner F46(PTFE) F
Monel M
Indicator type Code
Iinear indicator(pointer indication) M7
Nonlinear indicator(LCD Display) M9
Combination function(only for LCD display) Code
24VDC with 4~20mA output S
24VDC with HART communication Z
Battery power D
Additional function Code
Measuring tube with thermal preservation/heat insulation jacket T
Measure medium temperature higher than 120.C HT
Ex-proof: Code
With W
Without N
Alarm Code
One alarm K1
Two alarm K2
None N

Vertical Pointer Variable Area Flowmeter | QTLZ

Brand

Q&T Instrument

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