The V565 is a loop-powered digital process indicator which derives its power entirely from the 4-20mA or 10-50mA signal being measured. No local power is required at the point of measurement.

The 3-1/2 digit, 0.8" high Liquid Crystal Display (LCD) provides clear visibility up to a distance of 30 feet, and can be easily calibrated to the required range. Zero and fullscale can be set

anywhere between -1999 and 1999. Span can be from 0 to 3998 counts (100 count minimum span).

The V565 provides linear and square root operation, permitting direct flow readings from differential pressure origins (e.g., orifice plates). The V565 is also equipped with selectable direct/reverse display gain. Reverse operation provides a decreasing count with an increasing input. A trailing, dummy, zero allows display readings to ±19990. The decimal point position is switch selectable and can be independently set to any of four positions (1.9.9.9.).

Application

The V565 is useful in any application requiring a wide-ranging 3˚ digit display from a 4-20mA or 10-50mA current source. The V565’s standard NEMA 4X housing enables indoor or outdoor installation with protection from sleet, corrosion, moisture,

chemicals, and even hose directed water or severe condensation. The V565 is ideal for displaying process variables in local and remote areas where line power is not available or impractical.

The V565 is entity approved by FM for intrinsically safe operation in Class I, II, and III, Division 1 & 2 hazardous locations when installed per manufacturer's drawing 790-0029-00.

The V565 is also intrinsically safe per CSA for operation with the following housings when installed per manufacturers drawing 790-0025-00: panel housing: Class I, Groups A, B, C and D; conduit housing: (Opt C) Class I, Groups A, B, C and D. Class II, Groups E, F and G. Class III; EP housing: Class I, Groups C and D. Class II, Groups E, F and G.t. Loop Drop of 1 Volt

The supply requirement of model V565 is only 1.0 volt on a 4- 20mA current loop. This is beneficial in applications where intrinsic safety barriers are used and voltage compliance is at a premium. The V565 can provide an extra 3-5 volts of loop drive above standard loop-powered indicators.

Input Current Ranges:

4-20mA and 10-50mA, switch selectable

Input Current Limits:

• Minimum: 3mA

• Maximum: 220mA (Fuse)

Input Voltage Drop:

• 4-20mA: 1 volt max. @ 20mA

• 10-50mA: 1.4 volt max @ 50mA

Power Consumption:

2.5mW maximum @ 3.5mA input

Display Reading Update

2 readings per second

Readout Display:

• Type: 0.8" High Liquid Crystal, 3-1/2 digit (1999)

• Decimal Point Indication: Switch-selectable, four positions 1.9.9.9.

• Dummy Zero: Switch-selectable trailing zero, e.g., 19990

• Direction: Jumper-selectable,

• Underrange (below -1999): displays -1

• Overrange (above +1999): displays 1

Display Calibration:

• Zero (4mA/10mA): Adjustable from -1999 to 1999

• Span (20mA/50mA): Adjustable from 0 to 3998

Accuracy (@ 25 ±5°C):

• Linear:<±0.1% of span counts, ±1 count.

• Square-Root: <±0.1% of span counts, ±1 count (from 1% to 100% of span)

Ripple Rejection:

1 count error with 1mA p-p ripple @ 50Hz

Screws (V565/V565C):

• Front Panel: 10-32, brass with corrosion resistant stainless steel plating: MIL-W-52263C (MR)

• Rear Electrical: 6-32, nickel plated brass