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Installation/Configuration Instructions for 42DR

Intrinsically Safe Sensor

IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.

Specifications

Normal O peration Requirements

Voltage Supply 13--29.5V DC

Supply Current 26mA max (output energized) at 13V DC

30mA max (output energized) at 29.5V DC

Response Time 1ms

Dual Outputs 1 NPN open collector (current sink)

1 PNP open collector (current source)

Output Ratings 20mA, 29.5V DC maximum

Turn On Pulse Suppression Yes

Light/Dark Energized Option Yes

Reverse Polarity Protection Yes

Output Overvoltage

Protection w/ Barriers

Yes

Field of View Type 42DRU Reflex 2.5

Type 42DRP Proximity 3

Sensitivity Adjustment Selectable by LOW (L)—HIGH (H) switch.

Covers full range of operating distances.

Ambient Temperature -- 4 0 F to 150F(--40Cto65C)

Relative Humidity 90%

Rated Operating Distances

All operating distances are with LOW (L)—

HIGH (H) switch in the HIGH (H) position.

42DRU- 5500 3 Dia. Reflector #92--39 1 to 30

1.25 Dia. Reflector #92--47 1 to 20

0.625 Dia. Reflector #92--46 1 to 15

42DRU- 5700 3 Dia. Reflector #92--39 6 to 15

1.25 Dia. Reflector #92--47 6 to 8

42DRP- 5500

White Paper

Distance Discrimination Range

Short Range (SR) Long Range (LR)

1 5

5 to 16 16 to 5

Distance differential between surface to be detected and background is defined

as the increase in distance required to de-energize the output, measured from the

point of energization:

Min. differential 10% 6 to 16

Min. differential 20% 2 to 5

42DRA- 5500 Operating distance depended on the choice

of lens or Fiber Optic Cable. See Bulletin

PA- 8306, PA- 8307, and PA- 8401.

Attention: Installation in hazardous environment

locations shall be made according to

ANSI/ISA -- RP 12.6 and other applicable

codes and standards.

Features

S For use in Class I, II, III; Division 1, 2; Group A, B, C, D, E,

F, G hazardous locations with Intrinsic Safety Zener Diode

Barriers.

S Reflex, polarized reflex, proximity, and special function

control models.

S Rated operating ranges

-- R e f l e x 1  to 30 (0.03m to 9m)

-- Polarized Reflex 6 to 15 (0.15m to 4.5m)

-- Proximity 0 to 5 (0 to 1.5m).

S Quick-Disconnect (QD) reduces downtime. No disruption of

alignment or wiring.

Features (continued)

S Photohead and terminal base are specially keyed to

prevent improper installation of non-intrinsically safe

equipment in a hazardous location.

S Terminal base for input voltages 13 to 29.5V DC eliminates

needs for separate junction box.

S Entity approval:

-- Vmax = 29.5V

-- Imax = 107mA

-- C i = 0 F

-- L i = 0 H

Attention: These parameters must be adhered to. If

not, injury may be caused to person or

property.

S Control input parameters

-- Supply voltage 13 to 29.5V DC

-- Supply current, 26mA max. at 13V DC, 30mA max. at

29.5V DC

S Plug-in Photohead contains functional electronics and

optics.

S Thick film microcircuitry for quality and reliability.

S Adjustable input sensitivity.

S RF interference protected.

S No false turn-on pulse.

S Synchronous detection circuitry avoids ambient

interference.

S Switch selection for light or dark operation.

S Dual open collector outputs provide current sink (NPN) and

current source (PNP) capabilities.

-- Load voltage 29.5V DC max.

-- Load current 20mA max.

S Response Time: 1ms

S LED alignment indicator: Visible 360

S NEMA 4X corrosion resistant, high impact housing.

S UL Listed.

Attention: Substitution of components may impair

intrinsic safety.

Why Intrinsically Safe

Explosion prevention is a prime consideration in plants and facilities containing

hazardous atmospheres where “explosion-proof” housings are used.

The main fault with the “explosion-proof” housing system is that a single human

error could create a light explosion probability. Such occurrences as, failing to

tightly replace covers on “explosion-proof” housings, failing to shut off the power

before removing the cover of such a housing, and damaging the machined

surfaces of such covers are all prime examples.

Intrinsically Safe systems are now recogni zed as a more hi ghly desirable

means of providing automated control functions in explosive environments. The

technique relies on the inherent parameters of electronic circuits, so that no

energy can be released under normal or abnormal operating conditions, of

sufficient magnitude to ignite a specified atmospheric mixture.

Summary of content (8 pages)

PAGE 1
Installation/Configuration Instructions for 42DR Intrinsically Safe Sensor IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE. Specifications Features (continued) S Photohead and terminal base are specially keyed to Normal Operation Requirements Voltage Supply 13-- 29.5V DC Supply Current 26mA max (output energized) at 13V DC 30mA max (output energized) at 29.
PAGE 2
To design an effective Intrinsically Safe system, energy sources that enter the hazardous area must be limited. For electronic controls, energy limiting is accomplished by controlling the voltages and currents that may enter the hazardous area. In addition, stored electrical energy in the controls is limited to levels that cannot cause ignition of a given atmosphere.
PAGE 3
Description Type 42DR Series 5500 QD Intrinsically Safe miniature self-contained Photoelectric controls each consist of a combination modulated LED light source, high speed silicon photodetector and dual open collector sold state outputs which can be used to interface with programmable controllers, computers, digital control systems or E-M control relays via Intrinsic Safety Zener Diode Barriers.
PAGE 4
Power Supply Barrier Intrinsic safety zener diode barrier #897H--S120 is recommended for FM Approved and UL Listed locations. See page 8 for barrier details. Alternatively, the user must select his own power supply barrier. It should be noted that the Series 5500 control must have at least 13V DC at the + and -terminals of the power base, Type 42DTB Model 5500. The supply current at 13V DC is 26mA. The maximum barrier resistance is then determined by the following formula: Rb max = Vs -- 13 0.
PAGE 5
Dimensions Terminal Style Power Base Control with Terminal Style Power Base To Remove Photohead 0.953 (24.2) 0.469 (11.9) 1.031 (8.7) Min. 1.437 (36.5) 0.109 (2.7) 0.469 (11.9) 5.516 (139.5) 2.500 (63.5) 4.250 (106.5) 4.344 (110.3) 1 (25.4) 1.250 (31.7) 0.250 (6.3) Clearance for #10-32 HDW Quick Disconnect Screw 5.750 (146.4) #10-32 Thread 2 Holes 2.797 (71.0) 2.594 (65.8) 0.344 (8.73) 0.609 (15.4) 0.453 (15.4) 2.186 (55.5) 0.953 (24.2) 0.922 (23.4) 1.312 (33.
PAGE 6
Typical Response Curves 42DRU--5500 Retroreflective 42DRA--5500 Fixed Focus Diffuse 1000 200X 3 (78mm) Reflector 100X 80X Operating Margin Operating Margin 40X 20X 10X 8X 0.625 (16mm) Reflector 4X 1.25 (32mm) Reflector 100 10 2X 1X 1 1 (2.54cm) 3 6 1 2 (7.62cm) (15.24cm) (0.3m) (0.6m) 5 (1.5m) 10 (3m) 20 (6.1m) 0.5 (1.27cm) 50 (15.24m) 1 (2.
PAGE 7
Installation Wiring Diagrams for Series 5000 Intrinsically Safe Version Hazardous Location Nonhazardous Location Class I, II, III, Division 1, Group C, D, E, F, G Class I, II, III, Division 2, Group A, B, C, D, F, G Photoheads Terminal Base 42DRA-- 5500, 42DRU-- 5500 42DRP-- 5500, 42DRU-- 5700 42DTB-- 5500 NPN Open Collector Connections (Sinking) (2 Barriers Required) Vmax = 29.
PAGE 8
#897H--S120 and #897H--S140 Intrinsic Safety Zener Diode Barrier Information Specifications Environmental Conditions Operating Temperatures Storage Temperature Relative Humidity - 40 to 122F (-- 40C to +50C) - 40F to 167F (-- 40C to +75C) 5% to 95% noncondensation 55Hz +1.5mm (+0.062in) 20g The Intrinsic Safety Zener Diode Barrier offer economical solutions for instrumentation and control systems in hazardous locations defined by NEC Article 500.