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 RT9420-0003-121-1120详细描述

 t Industrial Grade – Up to 50 Turns

t 4...20 mA Output Signal

t Intrinsically Safe

Specification Summary:

The RT9420 provides rotational position feedback

via 4...20 mA current loop signal. This

device combines the superb linearity and resolution

of a plastic-hybrid potentiometer and the

durability of Celesco’s 4...20mA circuit to provide

an accurate and reliable electrical signal.

Additionally the zero and span settings

are adjustable through access holes in the

housing.

This innovative sensor from Celesco, designed

to meet NEMA-4 and IP67 standards,

is available in full stroke ranges of 1/4 to 50

turns.

Electrical Output Signal:

GENERAL

Full Stroke Range .................................... 0-0.25 to 0-50 turns, see next page

Output Signal ................................ 4 - 20 mA (2-wire), 0 - 20 mA (3-wire), see

Accuracy ...................................................... + 0.30 to +0.15% full stroke, see

Repeatability ................................................................ + 0.05% full stroke, max.

Resolution ............................................................................... essentially infinite

Enclosure Material ............... powder-painted aluminum or stainless steel, see

Sensor .................................................... plastic-hybrid precision potentiometer

Shaft Loading ................................................ up to 35 lbs. radial and 5 lbs. axial

Weight, Aluminum (Stainless Steel) Enclosure ..................... 5 lbs. (10 lbs.) max.

ELECTRICAL

Input Voltage ................................................................................. 12 to 40 VDC

Input Current ....................................................................................... 4 - 20 mA

Loop Resistance (Load) ........................... (loop supply voltage - 12 ) / 0.02, max

Circuit Protection ...................................................................... 38 mA maximum

Impedance ................................................................ 100 MW @ 100 VDC, min.

Zero and Span Adjustment ............................................................. 2:1 turndown

ENVIRONMENTAL

Enclosure Design ..................................... NEMA 4/4X/6, IP 67/68, see and

Hazardous Area Certification (see )

CSA 22.2: ......................................................... Class 1, Groups A, B, C and D

Cenelec: .................................................................................. LCIE EEx IIc T4

Operating Temperature ............................................................... -40o F to 200oF

Thermal Effects

Zero ........................................................................ 0.01% full stroke / oF, max.

Span ........................................................................................ 0.01% / oF, max.

Vibration ............................................................... up to 10 G's to 2000 Hz max.

EMC COMPLIANCE PER DIRECTIVE 89/336/EEC

Emission / Immunity ..................................................... EN50081-2 / EN50082-2

RT9420- 0005 - 1 1 1 - 1 1 1 0

order code: R A B C D E F G

Specifications: Full Stroke Range: 5 turns (5 clockwise shaft rotations)

Enclosure Material: powder-painted aluminum

Shaft Diameter: 0.25 inches

Output Signals: 4-20 mA, 2-wire, output increasing with clockwise shaft rotation

Electrical Connection: 6-pin plastic connector