Honeywell RP7517A PRODUCT DATA

RP7517A/B

ELECTRONIC/PNEUMATIC TRANSDUCER

APPLICATION

An E/P Transducer accepts a proportional voltage signal from an electronic controller and converts it into a proportional pneumatic signal of 0.2 to 1.0 bar to operate pneumatic actuators or reset pneumatic controllers.

The RP7517A accepts a 2...10 Vdc / 4...20 mA signal directly from a MicroniK 100 output. The RP7517B includes a voltage-to-current converter for use with an Excel DDC output and Delta CPA. It may also be used in applications where more than one transducer must be connected to one MicroniK 100 output. The RP7517B requires an external 24 Vac power supply.

All E/P-Transducers supplied with 1 m cable

MAINTENANCE

A full range of maintenance programs is available from your local registered Honeywell office.

SPECIFICATIONS			PRODUCT DATA
Type No.		RP7517A		RP7517B
Power supply		none		+10% / -15%
				24 V, 50/60Hz
Power consumption		0.15 W		1.7 VA
Input signal			2...10 V
Min. current at 10 Vdc		(15 mA)		(0.1 mA)
		0.2...1.0 bar (20...100 kPa) at
Output pressure at		2...10 Vdc
		max. 0.035 bar (3.5 kPa) at 0 Vdc
1.25 bar (125 kPa)
main pressure		min. 1.06 bar		min 1.12 bar
		(106 kPa) at		(112 kPa) at
		11.5 Vdc		11.5 Vdc
Main air pressure		1.25 bar (125 kPa)
Main air pressure		1% per 0.1 bar main air pressure
independence
Maximum safe air		2.0 bar (200 kPa)
Air consumption		42 NL/h (700 sccm) at 0.6 bar
Air capacity		720 NL/h (12000 sccm)

Dual-barb-fittings for either 6 x 1 mm Air connections (1/4“ O.D.) or 4 x 0.75 mm (5/32“

O.D.) polyethylene tubing.

Calibration	Factory calibrated
Ambient temperature	5...55ºC
Storage	-30...+70ºC
Humidity	5...95% RH

WIRING

	distance from E/P-	type of wire	max. length
	Transducer to
	controller or	local standard	100 m	150 m
	Delta CPA output		1.0 mm2	1.5 mm2

BLUE	c	BLUE	Vdc
Y = 2...10 Vdc	o	Y = 2...10
	n	BROWN
RP7517A	v
	RP7517B e	24 V~
	r
BLACK	t	BLACK
	e	24 V
	r

Fig. 1. Wiring and connections

NOTE: The E/P Transducer connection wire 24 V (black) must be connected to the same potential 0 V level as the controller or Delta DGP.

® U.S. Registered Trademark		EN0B-0635GE51 R0908
Copyright © 2008 Honeywell Inc. • All rights reserved

RP7517A/B ELECTRONIC/PNEUMATIC-TRANSDUCER

OPERATION

The basic operation is similar for both E/P-Transducers: The input signal 2...10 V is fed directly to a coil on the RP7517A or into a voltage to current converter in the RP7517B.

The current through the coil produces a magnetic force on the flapper. This force is balanced by the feedback force developed by the nozzles pressure on the opposite side of the flapper.

When the magnetic force on the flapper changes due to a change in current, the position of the flapper over the nozzle changes, and a new pressure is established. This pressure is used to pilot the pneumatic amplifier, which converts the low capacity pilot pressure to a high capacity branch line. The operation span is fixed and the start-point of the output signal is factory calibrated.

Both transducers are compensated to eliminate ambient temperature influence. The transducers are protected by a rigid plastic cover.

		51.5									4.5						47
							38

78

diameter 4.1

5°

13.5

7

62

Fig. 2. RP7517A/B dimensions (in mm)

MOUNTING

Wall mounting with two screws 4 mm diameter (see Fig. 2). Rail mounting using the European Standard Rail 35 x 7.5 (EN 50022) (see Fig. 3).

Mount the transducer in the vertical position ONLY with a maximum of 5 angular degree tolerance to the perpendicular line (see Fig. 2).

1. For test or indication gauge

2. Additional length to dismount from rail

Fig. 3. Mounting

START-UP INSTRUCTIONS

Before starting up the system, the following checks should be made on the transducer:

1.Check that main line pressure is available and input voltage is at maximum i.e. 12 Vdc.

2.Check that output pressure is at minimum, i.e.

112 kPa (1.12 bar) (RP7517A) or 120 kPa (1.2 bar) (RP7517B).

3a. If the output pressure is within the transducer rating, the system can be started up.

3b. If not, short out the contact pins with a screwdriver. When this is done, the sound of discharging air should be heard.

4.Check for correct output pressure build-up and repeat step 3(b) if transducer does not function correctly.

Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Sàrl, Ecublens, Route du Bois 37, Switzerland by its Authorized Representative:

Automation and Control Solutions

Honeywell GmbH Böblinger Strasse 17

71101 Schönaich / Germany

Phone: [phone]

Fax: [phone] http://ecc.emea.honeywell.com

Subject to change without notice. Printed in Germany

EN0B-0635GE51 R0908