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FAIRCHILD TXI7800/TXI7850
EXPLOSION-PROOF I/P TRANSDUCERS
Installation,Operation and Maintenance Instructions
Standard Range Unit
Extended Range Unit
GENERAL INFORMATION
The Model TXI7800/TXI7850 Explosion-Proof I/P Transducer transmits a pneumatic signal which is linearly proportional to a DC
input signal from electronic control devices. The Transducer uses low powered microelectronics and pressure feedback control
to provide a stable, accurate pneumatic output for the operation of valve actuators.
I
NSTALLATION
The Model TXI7800/TXI7850 can be mounted directly onto a flat surface using the two tapped mounting holes in the mounting
face of the housing. For more information, see Figure 2.
TXI7800/TXI7850, Installation with the "N" Option.
NOTE: For Hazardous Location in Potentially Explosive Atmosphere Installations
1. Tapped exhaust required for installation in Class 1, Division 2/Zone 2 (European Union) classified locations with
group D/Group IIA (European Union) gases such as Natural Gas and Methane-Industrial as the pressure supply medium.
2. The explosion-proof pipe nipple seal (N option) supplied with this unit is an integral component of the design safety
of this version and must not be removed. Use caution to avoid marring the threads on the pipe nipple which voids the
explosion-proof integrity of the device.
3. Gases used as the pressure supply medium in hazardous location applications must be compatible with the elas-
tomer indicated in Materials of Construction.
A mounting Kit is available to mount the TXI7800/TXI7850 on a flat surface or on a 2" pipe. For more information, see Figure 3.
MAINTENANCE
To clean the Orifice, use the following procedure:
1. Shut off the valve that is supplying air to transducer. It is not necessary to remove the Transducer from the air line.
2. Remove the Orifice Assembly from the unit. For more detailed information see View A.
3. Clean with alcohol and dry with compressed air.
4. Lubricate O-Rings on Orifice Assembly (4) with silicone grease or equivalent lubricant before reassembling.
NOTES:
Parts must be completely dry before reassembling.If the standard maintenance procedure does not correct the trouble, a service
kit containing a replacement diaphragm and orifice assembly is available, see Figure 5.
Figure 2. TXI7800/TXI7850 Outline Dimensions
Figure 2. TXI7800/TXI7850 Outline Dimensions.
Figure 2
Materials of Construction
Body and Housing . Cromate Treated
Orifice . . . . . . . . . . Aluminum
Trim . . . . . . . . . . . . Stainless Steel, Brass
Sintered Elements . Stainless Steel
Elastomers . . . . . . .Nitrile
Finish . . . . . . . . . . . Epoxy Powder Coating
NOTE: Unused IN and OUT Ports are plugged
1
Aluminum
and Sapphire
and Zinc Plated Steel
.
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- Página 1 3. Gases used as the pressure supply medium in hazardous location applications must be compatible with the elas- tomer indicated in Materials of Construction. A mounting Kit is available to mount the TXI7800/TXI7850 on a flat surface or on a 2" pipe. For more information, see Figure 3. MAINTENANCE To clean the Orifice, use the following procedure: 1.
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Página 2: Pneumatic Connections
The inlet and outlet ports are labeled on the side of the transducer. Tighten connections securely. Avoid undersized fittings that will limit the flow through the transducer and cause a pressure drop downstream. For detailed information, see Figure 2. “TXI7800/TXI7850 Outline undersized fittings that will limit the flow through the transducer and cause a pressure drop downstream. - Página 3 Lo/Hi Span Adjustment Set the Lo/Hi Span switch to the required position for needed output and supplied MA input. For more detail information, see Figure 6 “TXI7800/TXI7850 Calibration Configuration”. Forward Acting Mode Adjustment Set Fwd/Rev Mode switch to Forward position.
- Página 4 The information set forth in the foregoing Installation, Operation and Maintenance Instructions shall not be modified or amend- ed in any respect without prior written consent of Fairchild Industrial Products Company. In addition, the information set forth herein shall be furnished with each product sold incorporating Fairchild's unit as a component thereof.
- Página 5 The information set forth in the foregoing Installation, Operation and Maintenance Instructions shall not be modified or amended in any respect without prior written consent of Fairchild Industrial Products Company. In addition, the information set forth herein shall be furnished with each product sold incorporating Fairchild's unit as a component thereof.
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Página 6: Äußere Abmessungen
Materials of Construction. Figure 2. finden Sie in Abbildung 3. A mounting Kit is available to mount the TXI7800/TXI7850 on a flat surface or on a 2" pipe. For more information, see Figure 3. WARTUNG MAINTENANCE Die Düse muss folgendermaßen gereinigt werden: To clean the Orifice, use the following procedure: 1. -
Página 7: Elektroanschlüsse
Verunreinigungen des Wandlers zu vermeiden. Installieren Sie den Wandler an der Luftleitung. Die Einlass- und Auslassöffnungen the flow through the transducer and cause a pressure drop downstream. For detailed information, see Figure 2. “TXI7800/TXI7850 Outline sind auf der Seite des Wandlers beschriftet. Ziehen Sie die Anschlüsse fest. Verwenden Sie keine zu kleinen Verschraubungen, die Dimensions”... - Página 8 Einstellen der niedrigen/hohen Spannweite Stellen Sie den Schalter Niedrige/Hohe SPAN auf die gewünschte Position für die benötigte Ausgangsleistung sowie die dazu gehörigen Eingangsparameter ein. Nähere Angaben finden Sie in Abbildung 6. “Kalibrierkonfiguration TXI7800/TXI7850”. Einstellen des Vorwärtsmodus Stellen Sie den Schalter Vorwärts-/Rückwärtsmodus auf Vorwärts.
- Página 9 The information set forth in the foregoing Installation, Operation and Maintenance Instructions shall not be modified or amend- ed in any respect without prior written consent of Fairchild Industrial Products Company. In addition, the information set forth herein shall be furnished with each product sold incorporating Fairchild's unit as a component thereof.
- Página 10 The information set forth in the foregoing Installation, Operation and Maintenance Instructions shall not be modified or amend- ed in any respect without prior written consent of Fairchild Industrial Products Company. In addition, the information set forth herein shall be furnished with each product sold incorporating Fairchild's unit as a component thereof.
- Página 11 INSTALLAZIONE Il modello TXI7800/TXI7850 può essere montato direttamente su una superficie piatta usando i due fori di montaggio con rubinetto che si trovano sul lato NSTALLATION di montaggio dell’alloggiamento. Per ulteriori informazioni, vedere la Figura 2.
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Página 12: Collegamenti Elettrici
The inlet and outlet ports are labeled on the side of the transducer. Tighten connections securely. Avoid undersized fittings that will limit the flow through the transducer and cause a pressure drop downstream. For detailed information, see Figure 2. “TXI7800/TXI7850 Outline Serrare saldamente le connessioni. - Página 13 Regolazione Span Lo/Hi (basso/alto) Impostare il commutatore dello span Lo/Hi (basso/alto) nella posizione desiderata per l’uscita necessaria e l’ingresso mA fornito. Per ulteriori e più dettagliate informazioni, vedere la Figura 6 “Configurazione della taratura dei modelli TXI7800/TXI7850”. Regolazione modalità di azionamento in avanti Impostare il commutatore di modalità...
- Página 14 The information set forth in the foregoing Installation, Operation and Maintenance Instructions shall not be modified or amend- ed in any respect without prior written consent of Fairchild Industrial Products Company. In addition, the information set forth herein shall be furnished with each product sold incorporating Fairchild's unit as a component thereof.
- Página 15 The information set forth in the foregoing Installation, Operation and Maintenance Instructions shall not be modified or amend- ed in any respect without prior written consent of Fairchild Industrial Products Company. In addition, the information set forth herein shall be furnished with each product sold incorporating Fairchild's unit as a component thereof.
- Página 16 Un kit de montage est disponible pour monter le TXI7800/TXI7850 sur une surface plane ou sur un tuyau 2”. Pour plus d’informations, voir la figure 3. 3. Gases used as the pressure supply medium in hazardous location applications must be compatible with the elas- tomer indicated in Materials of Construction.
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Página 17: Connexions Électriques
Serrez les raccords fermement. Évitez les raccords sous-dimensionnés qui limitent le débit dans le transmetteur Dimensions” on page 1. et provoquent une baisse de la pression en aval. Pour plus de détails, voir la figure 2. « Dimensions TXI7800/TXI7850 » sur la page 1. Electric Connections Connexions électriques... - Página 18 Réglage de l’étendue minimale/maximale Placez le commutateur de l’étendue minimale/maximale (Lo/Hi) sur la position requise pour la sortie souhaitée et l’entrée mA fournie. Pour plus de détails, voir la figure 6 « Configuration d’étalonnage TXI7800/TXI7850 ». Réglage du mode d’action avancée Placez le commutateur Fwd/Rev sur la position avancée (Fwd).
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Página 19: Fonctionnement Anormal
The information set forth in the foregoing Installation, Operation and Maintenance Instructions shall not be modified or amend- ed in any respect without prior written consent of Fairchild Industrial Products Company. In addition, the information set forth herein shall be furnished with each product sold incorporating Fairchild's unit as a component thereof. - Página 20 Les informations figurant dans ces instructions d’installation, de fonctionnement et de maintenance ne doivent en aucun cas être modifiées ni amendées, sans l’autorisation écrite préalable de la société de produits industriels Fairchild. De plus, les informations incluses dans ce document doivent être fournies avec chaque produit vendu incorporant l’unité Fairchild.
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Página 21: Dimensiones Generales
Materials of Construction. información, consulte la figura 3. Figure 2. A mounting Kit is available to mount the TXI7800/TXI7850 on a flat surface or on a 2" pipe. For more information, see Figure 3. MANTENIMIENTO MAINTENANCE Para limpiar el orificio, siga el procedimiento indicado a continuación: To clean the Orifice, use the following procedure: 1. -
Página 22: Configuración De Montaje
The inlet and outlet ports are labeled on the side of the transducer. Tighten connections securely. Avoid undersized fittings that will limit the flow through the transducer and cause a pressure drop downstream. For detailed information, see Figure 2. “TXI7800/TXI7850 Outline están marcadas en la parte lateral del transductor. - Página 23 Ajuste el interruptor de la amplitud (“Span”) en la posición correspondiente (“Lo” o “Hi”) en función de la salida necesaria y la entrada recibida (en mA). Para obtener más información, consulte la figura 6, “Configuración de calibración de los transductores TXI7800/TXI7850”. Ajuste en el modo normal Sitúe el interruptor de selección de modo (“Mode”) en la posición del modo normal (“Fwd”).
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Página 24: Configuración De Calibración
The information set forth in the foregoing Installation, Operation and Maintenance Instructions shall not be modified or amend- ed in any respect without prior written consent of Fairchild Industrial Products Company. In addition, the information set forth herein shall be furnished with each product sold incorporating Fairchild's unit as a component thereof. -
Página 25: Placas De Características Según La Directiva Atex
La información contenida en la anterior instalación, instrucciones de operación y mantenimiento no será modificada o enmendada en TXI7800/TXI7850 Calibration Configuration cualquier sentido sin el previo consentimiento por escrito de la compañía Industrial de productos de Fairchild. Además, se aportará la información establecida con cada producto que vende unidad de Fairchild incorpora como un componente del mismo.