Electronic volumetric computing head

The EsiWelma TW1-B electronic computing head have LNE-15272 rev.2 type examination certificate dated 26/08/2009 attesting to conformity with international directive OIML R117 (Metrological Instruments Directive) (liquid fuels).

In keeping with the aforesaid directives, the fuel flow meters can be supplied in two versions:- Standard version with electromechanical relay command output.- Non-sparking version with solid state relay command output, compliant with ATEX 2014/34/UE directive and with ATEX EX nA IIC T4 X protection mode.

MisurFuel Price list request – click here

MisurFuel TW1-B Computing Head User Guide Gasoline version

The electronic volumetric computing head have a display that shows the volume every time the fuel is dispensed.

Single-product Volumetric Gasoline, Diesel and LPG

The TEW1-VM electronic computing head shows the litres of fuel dispensed on one display (one-sided meter) or two displays (two-sided meter) and it controls one nozzle at a time.

More than one TEW1-VM electronic computing head can be used at the same time for multiple dispensers.

TW1-B-VB

VOLUMETRIC COMPUTING HEAD KIT TW1-B-VB. Two-sided for Gasoline – Diesel – LPG.

Formed of:

  • Power supply – CPU module, part no.: TW1-B-CPU
  • First DISPLAY module with totalizer, part no.: TW1-DCT
  • Second DISPLAY module, part no.: TW1-DCN
  • SETUP module, part no.: TW1-STP
  • 4-connection flat cable, part no.: TW1-FL2

Technical specifications:

  • Power supply 230 Vca
  • Passivated steel enclosures
  • Provision for pre-setting
  • Two relays (3A, 270 Vca, 810 VA), N.O. contact for solenoid valves, electropump
  • Two relays (3A, 270 Vca, 810 VA), N.O. contact for signal lights
  • One host communication line, three current loop cables
  • Temperature compensation for LPG version according to A.P.I. tables

Options:

  • Backlighting for display (230 Vca) LED , part no.: TW1-RCL
  • Custom host communication card

Accessories:

  • Preset keyboard, part no.: TW1-TPR
  • Pulser Eltomatic 01-09 up to 125ppr, 1,5 m cable, cod.: TW1-E0109
  • Repeater module of Alarm signal state relay 3A, part no.: TW1-MRE
  • Repeater module of Alarm signal state SSM 1A, part no.: TW1nA-MRS

TW1-B-VM

VOLUMETRIC COMPUTING HEAD KIT TW1-B-VM One-sided for: Gasoline – Diesel – LPG.

Formed of:

  • Power supply – CPU module, part no.: TW1-B-CPU
  • First DISPLAY module with totalizer, part no.: TW1-DVT
  • Second DISPLAY module, part no.: TW1-STP
  • 3-connection flat cable, part no.: TW1-FL1

Technical specifications:

  • Power supply 230 Vca
  • Passivated steel enclosures
  • Provision for pre-setting
  • Two relays (3A, 270 Vca, 810 VA), N.O. contact for solenoid valves, electropump
  • Two relays (3A, 270 Vca, 810 VA), N.O. contact for signal lights
  • One host communication line, three current loop cables
  • Temperature compensation for LPG version according to A.P.I. tables

Options:

  • Backlighting for display (230 Vca): LED part no.: TW1-RVL
  • Custom host communication card

Accessories:

  • Preset keyboard, part no.: TW1-TPR
  • Pulser Eltomatic 01-09 up to 125ppr, 1,5 m cable, cod.: TW1-E0109
  • Repeater module of Alarm signal state relay 3A, part no.: TW1-MRE
  • Repeater module of Alarm signal state SSM 1A, part no.: TW1nA-MRS

Single-product Volumetric Gasoline, Diesel and LPG - ATEX

Volumetric single-product electronic computing head for gasoline, diesel and LPG dispensers installed in ATEX classified areas such as type two zones, are defined as follows:

  • TW1nA-B-VB ATEX two-sided meter. – ATEX
  • TW1nA-B-VM ATEX one-sided meter – ATEX

TW1nA-B-VB

VOLUMETRIC COMPUTING HEAD KIT TW1nA-B-VB Two-sided for Gasoline – Diesel – LPG.

Formed of:

  • Power supply – CPU module, part no.: TW1nA-B-CPU
  • First DISPLAY module with totalizer, part no.: TW1-DVT
  • Second DISPLAY module, part no.: TW1-DVN
  • SETUP module, part no.: TW1-STP
  • 4-connection flat cable, part no.: TW1-FL2.

Technical specifications:

  • Power supply 230 Vca
  • Passivated steel enclosures
  • Provision for pre-setting
  • Four solid state relays (1A, 270 Vca, 270 VA), N.O. for solenoid valves, electropumps and signal lights
  • One host communication line, three current loop cables
  • Temperature compensation for LPG version

Options:

  • Backlighting for every Display (230 Vca) LED, part no.: TW1-RVL
  • Custom host communication card

Accessories:

  • Preset keyboard, part no.: TW1-TPR
  • Pulser Eltomatic 01-09 up to 125ppr, 1,5 m cable, cod.: TW1-E0109
  • Repeater module of Alarm signal state relay 3A, part no.: TW1-MRE
  • Repeater module of Alarm signal state SSM 1A, part no.: TW1nA-MRS

TW1nA-B-VM

VOLUMETRIC COMPUTING HEAD KIT TW1nA-B-VM. One-sided for: Gasoline – LPG.

Formed of:

  • Power supply – CPU module, part no.: TW1nA-B-CPU
  • DISPLAY module with totalizer, part no.: TW1-DVT- SETUP module, part no.: TW1-STP
  • 3-connection flat cable, part no.: TW1-FL1

Technical specifications:

  • Power supply 230 Vca
  • Passivated steel enclosures
  • Provision for pre-setting
  • Four solid state relays (1A, 270 Vca, 270 VA), N.O. for solenoid valves, electropumps and signal lights
  • One host communication line, three current loop cables
  • Temperature compensation for LPG version.

Options:

  • Backlighting for every Display (230 Vca) LED, part no.: TW1-RVL
  • Custom host communication card

Accessories:

  • Preset keyboard, part no.: TW1-TPR
  • Pulser Eltomatic 01-09 up to 125ppr, 1,5 m cable, cod.: TW1-E0109
  • Repeater module of Alarm signal state relay 3A, part no.: TW1-MRE
  • Repeater module of Alarm signal state SSM 1A, part no.: TW1nA-MRS