Varec 2920 Float & Tape Transmitter

The 2920 Float & Tape Transmitter (FTT) provides data from the tank side to the control room for use in inventory management applications. It accurately converts mechanical level measurement from the connected tank gauge, integrates temperature and HART devices, and provides digital inputs and digital outputs for the indication of alarms or drive relays.

Specifications

Accuracy & Repeatability

± 1/16? (1.58 mm)

Range

0 to 120 ft; Meters: 0 to 36 m
Limit switch range is 100 ft (30 M) maximum

Communications

Mark/Space
EIA?485/GSI Type MODBUS®
Biphase Mark
L&J Tankway

Power

Standard: 20 to 65 VDC 0.05A
Optional: 40 to 65 / 110 / 220 – 240 VAC
750 mW nominal, 50/60 Hz
Built-in galvanic isolation for both AC and DC models

Temperature Input

High?accuracy 20?bit analog?to?digital converter. 3?wire RTD Copper (CU90, CU100) or Platinum (PT100).

Discrete Inputs

Enables connection to ancillary devices, such as switches, pumps or valves
Standard: (DC Unit) Option: Two (2) discrete inputs.
Optional: (AC Unit): 4 discrete inputs
Host signal: Open/Closed

Contact Outputs

Triggers temperature or level alarm lights, horns, etc.
Optional (AC Unit): Four (4) software?driven contact outputs
Host signal: Open/Closed
Ratings:
0.6 A @ 125 Vac
1 A @ 30 Vdc
0.6 A @ 110 Vdc

I/O

Analog Input (x1) 4 to 20 mA
Analog Output (x2) 3.5 to 22 mA

HART

HART master for ancillary devices
Typically 4 max, depending on current consumption

Limit Switches

11 amp ? 125, 250, 277 VAC
4 amp ? 125 VAC Tungsten filament Lamp
Load: 1/3 HP ? 125 VAC, 250 VDC
Load: 1/2 amp ? 125 VDC, 1/4 amp ? 250 VDC

Approvals

cFMus (USA & Canada) ? Explosion proof: Class I, Division 1, Groups C&D T5 ?25 °C ? Ta ? +85 °C
Flameproof, Class I, Zone 1, AEx/Ex d IIB T5 ?20 °C ? Ta ? +85 °C
ATEX/IECEx (International) – Flameproof, Class I, Zone 1, Ex II 2G, Ex d IIB T5 Gb ?20 °C ? Ta ? +85 °C

Options

01 Approvals cFMus ATEX/IECEx

02 Power Input DC AC

03 Communications EIA-485 MODBUS/GSI Type MODBUS® Biphase Mark Mark/Space Tankway (L&J)

04 Limit Switches None Two (2) SPDT Limit Switches (180° adjustable dwell, positive activation) Four (4) SPDT Limit Switches (180° adjustable dwell, positive activation)

05 Limit Switch Range Not Applicable 0-25 ft 0-50 ft 0-100 ft 0-7.5 m 0-15 m 0-30 m

06 Digital I/O None 2 Digital Inputs 4 Digital Inputs + 4 Dry Contact Outputs

07 Analog I/O None Analog Input (4-20 mA) Analog Output (4-20 mA) Analog Input & Outputs (4-20mA)

08 HART None HART Master

09 Display Orientation Forward Facing Backward Facing Side Facing

Float & Tape Transmitter