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SGW-D Series Gas Turbine Flow Meter Display Introduction

SGW-D series Gas turbine flow meter Converter

SGW-D series Gas turbine flow meter Converter

Gas turbine flowtransmitter Keys Introduction

Marking

Function

SET

Page Down, modify, confirm ,save

RIGHT

Shift

UP

Add ,page up

ESC

Exit (quit without saving)

Gas turbine Flow transmitter Display

Gas turbine Flow transmitter Display

(1) Function Area

Marking

Description

Battery Capacity

Powered by 24V DC or loop powered


RS485 Communication, send display,receive display



  • Total: that is the totalized flow, max to 4 decimals places, when the digits overflow will carry automatically. Actual total flow and Normal total flow unit is different, actual flow unit is m3, while normal total flow unit is Nm3.
  • Std.: Standard instant flow, max to 3 decimals places, when the digits overflow will carry automatically. Max value 999999 Nm3/h.
  • Oper.: Instant flow in operation condition, max to 3 decimals places, when the digits overflow will carry automatically. Max value 999999 m3/h.
  • Temp.:Show measured gas temperature value, max to 2 decimals places, the display value range can be set, temperature unitºC orºF
  • Press.:Shown gas pressure value, max to 2 decimals places, the display value range can be set, pressure unit Bar or Kpa.
  • : Battery mark, when the battery voltage is over 3.4 V ,it will show full status. When the value between 3.4 and 3.2V, it show 2 drops, when between 3.2 and 3 V, it will show last drop, and when there is no drop, users should change the battery.
  • : Powered by 24V DC or loop powered, it will be bright.
  • : When in RS485 communication, the mark will be bright.


Supplementary displays

The main display will jump to supplementary display after 60s, and the supplementary display will jump to main display automatically after 3s. The supplementary display can show time, signal frequency and current parameters.

Password Display Area

When the display in supplementary display, please press SET keys to input passwords.

When input the wrong passwords, users can view P1-P19 parameters, but cannot modify them.

DIP Switch

Switch Position

Picture

Function

1-ON;2-OFF;3-OFF

1. Unscaled pulse output

2. Standard 0-1000Hz output

3. Revised frequency output (Refer to P2 display)

1-OFF;2-ON;3-OFF

Scaled pulse output

1-OFF;2-OFF;3-ON

Unscaled pulse output

Note:

a. DIP switch corresponds to frequency output port FOUT

b. Unsacled pulse output is the pulse not compensate by flow meter factor, modified pulse is the pulse which compensated by the instrument’s factor.

c. Scaled pulse is recommended not set high resolution ratio, and not large pulse width to avoid output saturation.

For example: DN50 Gas turbine flow meter, flow range 6-65 m3/h, P-1 set 0.001,scaled pulse set 50ms,that means when there is 0.001 Nm3 total flow, it will output a scaled pulse with width 50ms, 50% duty cycle, the max frequency is 1000/(50*2)=10Hz, the corresponding max flow is 0.001 *10*3600=36 Nm3/h, that is when the instant flow over 36N m3/h, the output scaled pulse frequency is still 10 Hz, that is output saturation.

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