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The EsiWelma TW1-B electronic fuel flow meters 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 directive, 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.

The display on the electronic fuel flow meters shows:- Price in local currency.- Dispensed fuel (volume/weight).- Unit price. For LPG applications, it also includes the volume – temperature compensation function according to the A.P.I. tables. The electronic fuel flow meters include the preset function of both price and fuel dispensed; they also interface with a remote PC (host) to provide dispensing data conforming to the protocol in use

MisurFuel TW1-B Computing Head User Guide Gasoline version
MisurFuel Multiproduct version Computing Head User Guide

Electronic computing head Gasoline - Diesel - LPG

Single-product

TW1-B-CB

ELECTRONIC COMPUTING HEAD KIT TW1-B-CB 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 solid state 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 every Display (230 Vca): LED, part no.: TW1-RCL
  • Custom host communication card

Accessories:

  • Preset keyboard, part no.: TW1-TPR
  • Extended Preset keypad, part no.: TW1-TEX
  • 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-CB

ELECTRONIC COMPUTING HEAD KIT TW1-B-CM 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-DCT
  • 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
  • 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
  • Extended Preset keypad, part no.: TW1-TEX
  • 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 ATEX

TW1nA-B-CB

ELECTRONIC COMPUTING HEAD KIT TW1nA-B-CB Two-sided for Gasoline – Diesel – LPG

Formed of:

  • Power supply – CPU module, part no.: TW1nA-B-CPU
  • DISPLAY module with totalizer, part no.: TW1-DCT
  • 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
  • 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 (TW1-RCL)
  • Custom host communication card

Accessories:

  • Preset keyboard TW1-TPR
  • Eltomatic pulser (01-09 pulses/revolution – to specify) cable (1.5 m) TW1-E0109

TW1-B-CM

ELECTRONIC COMPUTING HEAD KIT TW1nA-B-CM One-sided for Gasoline – LPG Diesel

Formed of:

  • Power supply – CPU module, part no.: TW1nA-B-CPU
  • DISPLAY module with totalizer, part no.: TW1-DCT
  • 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-RCL
  • Custom host communication card

Accessories:

  • Preset keyboard, part no.: TW1-TPR
  • Extended Preset keypad, part no.: TW1-TEX
  • 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

Multi-product

TW1.4-B-CB

MULTI-PRODUCT COMPUTING HEAD KIT TW1.4-B-CB for four products (4 nozzles), 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. Technical specifications:

  • Power supply 230 Vca
  • Passivated steel enclosures
  • Provision for pre-setting
  • 2×4 relays (3A, 270 Vca, 810 VA), N.O. as multiplexer for solenoid valves and electropumps
  • Two relays (3A, 270 Vca, 810 VA), N.O. to control solenoid valves and electropumps
  • Two relays (3A, 270 Vca, 810 VA), N.O. to control signal lights
  • One host communication line, three current loop cables, Logitron protocol
  • Temperature compensation for LPG only

Options:

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

Accessories:

  • Preset keyboard, part no.: TW1-TPR
  • Extended Preset keypad, part no.: TW1-TEX
  • 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
  • Slave DISPLAY module without totalizer part no.: TW1-DCN
  • Four unit price displays with backlighting card part no.: TW1-DPU
  • Four electromechanical totalizer cards part no.: TW1-MTE
  • 2-connection flat cable for DPU/MTE, part no.: TW1-FL9
  • 3-connection flat cable, part no.: TW1-FL1
  • 4-connection flat cable, part no.: TW1-FL2
  • 5-connection flat cable, part no.: TW1-FL3
  • 6-connection flat cable, part no.: TW1-FL4
  • 7-connection flat cable, part no.: TW1-FL5

TW1.4-B-CM

MULTI-PRODUCT COMPUTING HEAD KIT TW1.4-B-CM for four products (4 nozzles) 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-DCT
  • SETUP module, part no.: TW1-STP

Technical specifications:

  • Power supply 230 Vca
  • Passivated steel enclosures
  • Provision for pre-setting- 2×4 relays (3A, 270 Vca, 810 VA), N.O. as multiplexer for solenoid valves and electropumps
  • Two relays (3A, 270 Vca, 810 VA), N.O. to control solenoid valves and electropumps
  • Two relays (3A, 270 Vca, 810 VA), N.O. to control signal lights
  • One host communication line, three current loop cables, Logitron protocol
  • Temperature compensation for LPG only

Options:

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

Accessories:

  • Preset keyboard, part no.: TW1-TPR
  • Extended Preset keypad, part no.: TW1-TEX
  • 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
  • Slave DISPLAY module without totalizer part no.: TW1-DCN
  • Four unit price displays with backlighting card part no.: TW1-DPU
  • Four electromechanical totalizer cards part no.: TW1-MTE
  • 2-connection flat cable for DPU/MTE, part no.: TW1-FL9
  • 3-connection flat cable, part no.: TW1-FL1
  • 4-connection flat cable, part no.: TW1-FL2
  • 5-connection flat cable, part no.: TW1-FL3
  • 6-connection flat cable, part no.: TW1-FL4
  • 7-connection flat cable, part no.: TW1-FL5

Multi-product ATEX

TW1.4nA-B-CB

MULTI-PRODUCT FUEL FLOW METER KIT TW1.4nA-B-CB Two-side for four products Gasoline – Diesel – LPG

Formed of:

  • Power supply – CPU module, part no.: TW1.4nA-B-CPU
  • First DISPLAY module without totalizer, part no.: TW1-DCM
  • Second DISPLAY module, part no.: TW1-DCN
  • SETUP module, part no.: TW1-STP

Technical specifications:

  • Power supply 230 Vca
  • Passivated steel enclosures
  • Provision for pre-setting
  • 2×4 relays (3A, 270 Vca, 810 VA), N.O. as multiplexer for solenoid valves and electropumps
  • Two relays (1A, 270 Vca, 270 VA), N.O. to control solenoid valves and electropumps
  • Two relays (1A, 270 Vca, 270 VA), N.O. to control signal lights
  • One host communication line, three current loop cables, Logitron protocol
  • Temperature compensation for LPG only

Options:

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

Accessories:

  • Preset keyboard, part no.: TW1-TPR
  • Extended Preset keypad, part no.: TW1-TEX
  • 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
  • Slave DISPLAY module without totalizer part no.: TW1-DCN
  • Four unit price displays with backlighting card part no.: TW1-DPU
  • Four electromechanical totalizer cards part no.: TW1-MTE
  • 2-connection flat cable for DPU/MTE, part no.: TW1-FL9
  • 3-connection flat cable, part no.: TW1-FL1
  • 4-connection flat cable, part no.: TW1-FL2
  • 5-connection flat cable, part no.: TW1-FL3
  • 6-connection flat cable, part no.: TW1-FL4
  • 7-connection flat cable, part no.: TW1-FL5

TW1.4nA-B-CM

MULTI-PRODUCT FUEL FLOW METER KIT TW1.4nA-B-CM for four products (4 nozzles), one-sided for Gasoline – Diesel – LPG

Formed of:

  • Power supply – CPU module, part no.: TW1.4nA-B-CPU
  • DISPLAY module without totalizer, part no.: TW1-DCN
  • SETUP module, part no.: TW1-STP

Technical specifications:

  • Power supply 230 Vca- Passivated steel enclosures
  • Provision for pre-setting
  • 2×4 relays (3A, 270 Vca, 810 VA), N.O. as multiplexer for solenoid valves and electropumps
  • Two, solid state relays (1A, 270 Vca, 270 VA), N.O. to control solenoid valves and electropumps
  • Two, solid state relays (1A, 270 Vca, 270 VA), N.O. to control signal lights
  • One host communication line, three current loop cables, Logitron protocol
  • Temperature compensation for LPG only

Options:

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

Accessories:

  • Preset keyboard, part no.: TW1-TPR
  • Extended Preset keypad, part no.: TW1-TEX
  • 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
  • Slave DISPLAY module without totalizer part no.: TW1-DCN
  • Four unit price displays with backlighting card part no.: TW1-DPU
  • Four electromechanical totalizer cards part no.: TW1-MTE
  • 2-connection flat cable for DPU/MTE, part no.: TW1-FL9
  • 3-connection flat cable, part no.: TW1-FL1
  • 4-connection flat cable, part no.: TW1-FL2
  • 5-connection flat cable, part no.: TW1-FL3
  • 6-connection flat cable, part no.: TW1-FL4
  • 7-connection flat cable, part no.: TW1-FL5