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F-Series: F077

Field mount - Level monitor

with linearization and one high / low alarm output

The F077 is a versatile level indicator with linearization and continuous level monitoring feature. In addition to the average Span, eight linearization points can be entered to compensate for the tank shape. The unit will interpolate between these points to increase the accuracy. With the level monitoring feature, one low level and one high level alarm value can be set. The configuration of the Span, off-set and number of decimals is done through software functions, without any sensitive DIP-switches or trimmers. The display shows the actual level, height or percentage, alarm values, alarm messages and status.
On-screen engineering units are easily configured from a comprehensive selection.

Advantages
  • Robust IP66, IP67 (NEMA Type4X) field enclosure. It is so rugged, you can even stand on it!
  • Intrinsically Safe available - ATEX, IECEx, FM and CSA approval for gas and dust applications.
  • Programming can be done by your own crew, with the sensible menu-driven structure, saving cost and irritation. Know one, know them all!
  • Very diverse mounting possibilities: walls, pipes, panels or directly onto outdoor sensors.
Application overview F077

Features

  • Eight point linearization of the tank-shape - with interpolation.
  • Displays level and height or percentage filled.
  • Level monitoring: two alarm values can be set: low and high level alarm.
  • Alarm values can be changed by the operator or they can be password protected.
  • One alarm output for high, low or both combined level alarms.
  • Level: six large 17mm (0.67") digits.
  • Selectable on-screen engineering units for level: ml, L, m³, GAL, USGAL, kg, lb, bbl or no unit.
  • Selectable on-screen engineering units for height: mm, cm, m, mtr, inch, ft, mmwk, mmwc, cmwk, cmwc, mwk, mwc, inwc, ftwc, mBar, Bar, PSI or no unit.
  • Red flashing LED backlight in case of a level alarm; intensity adjustable.
  • Displays clear alarm messages.
  • Auto backup of settings in EEPROM memory.
  • Easy configuration with clear alphanumerical display.
  • Ambient temperature: -40°C to +80°C (-40°F to 176°F).
  • Various accessories are available for this product.
  • The F-Series is so rugged, even a truck can stand on it!

Level Inputs

  • (0)4 – 20mA.

Alarm Outputs

  • Function: Configurable alarm output for high, low or both combined level alarms.
  • Type: One passive NPN transistor, active PNP transistor or isolated electro-mechanical relay.

Analog Outputs

  • None.

Applications

  • The F-Series is your first and best choice for field mount indicators in safe and hazardous area applications. Especially in harsh weather conditions like rain, snow, salty atmospheres and temperatures between -40°C up to +80°C (-40°F up to 176°F).
  • Level measurement where continuous level monitoring and linearization of the tank shape is important without signal re-transmission.
    Alternative basic models: F070, F073. Alternative advanced models: F170, F173 or the D-Series DIN panel mount indicators.

Power Supply

  • Long life Lithium battery.
  • 4 – 20mA, input Loop-powered.
  • 8 – 24V AC/DC.
  • 115 – 230V AC.
  • Basic: 8 - 30V DC.

Sensor Supply

  • 8.2, 12, 24V DC.

Intrinsically Safe

  • ATEX:
    II 1 G Ex ia IIC T4 Ga
    II 1 D Ex ia IIIC T100°C Da
  • IECEx:
    Ex ia IIC T4 Ga
    Ex ia IIIC T100°C Da
  • CSA:
    I.S. Class I / II / III, Div. 1, Grps A...G, T4
    Class I, Zone 0, AEx ia IIC T4
  • FM:
    I.S. Class I / II / III, Div. 1, Grps A...G, T4
    Class I, Zone 0, AEx ia IIC T4

Explosion Proof

  • ATEX:
    II 2 G / Ex d IIB T5 Gb
    II 2 D / Ex t IIIB T100°C Db

Communication
– Modbus communication only available on F1-Series products.

LCD example F077
Photo F077