Pentair Raychem RTD7AL User manual

RTD7AL
RTD TempeRaTuRe SenSoR foR TempeRaTuRe meaSuRemenT up To 900°f (482°C) in
DiviSion 1 loCaTionS inSTallaTion inSTRuCTionS
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INDUSTRIAL HEAT TRACING SOLUTIONS EN-RaychemRTD7AL-IM-H5691611/15
DESCRIPTION
The RTD7AL temperature sensor is a three-wire platinum RTD
(resistance temperature detector) typically used with monitoring
and control systems when accurate temperature control is
required. The sensor is explosion proof and approved for Division
1 and 2 hazardous locations. The RTD7AL can be used with a wide
variety of Raychem monitoring and control systems.
These installation instructions detail the installation of the
RTD7AL in conjunction with existing Raychem component kits.
TOOLS REQUIRED
• 3.5mmflat-bladescrewdriver
ADDITIONAL MATERIALS REQUIRED
• Pipestrap
• Conduitwith16–22AWGshieldedinstrumentcableorequivalent
armored cable
APPROVALS
TheRTD7ALisCSACertifiedforuseinNorthAmerica by the
manufacturer for use in Division 1 and Division 2 hazardous loca-
tions as follows:
KIT CONTENTS
Qty Description
1 RTDTemperatureSensor
SPECIFICATIONS
Sensorhousing Zinc-plated cast-iron body with aluminum
cap;NEMA4,7
Sensorsheath 316stainlesssteel
Range –100to900°F(–73to482°C)max
Accuracy ±1°F(0.5°C)at32°F(0°C)
Resistance 100ohmsat0°Cα=0.00385ohms/ohm/°C
Connection 3/4in.NPTconduithub
Class I, Division 1, Groups C, D
Class II, Division 1, Groups E, F, G
Class I, Division 2, Groups A, B, C, D
Class II, Division 2, Groups E, F, G
This component is an electrical device. It must be installed
correctly to ensure proper operation and to prevent shock or
fire. Read these important warnings and carefully follow all the
installation instructions. Component approvals and performance
are based on the use of specified parts only. Do not use substitute
parts or vinyl electrical tape to make connections.
WARNING:
4.25 in.
(108 mm)
3/4 in NPT
conduit
opening
3 in. (76 mm)
2 in. (51 mm)

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Pentair is owned by Pentair or its global affiliates. All other trademarks are the property of their respective owners. Pentair reserves the right to change
specifications without prior notice.
© 2001-2015 Pentair. PN 229056-000
WWW.PENTAIRTHERMAL.COM
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INDUSTRIAL HEAT TRACING SOLUTIONS EN-RaychemRTD7AL-IM-H5691611/15
WIRING INFORMATION
The length of RTD extension wires is determined by the wire
gauge used.
To reduce the likelihood that electrical noise will affect
temperaturemeasurement,keepRTDextensionwiresasshortas
possible.
UseshieldedinstrumentcablesuchasRaychemMONI-RTD-WIRE
(22AWG,PVCinsulation,–30°Fto140°F,–20°Cto60°C)orBelden
83553(22AWG,FEPinsulation,–95°Fto395°F,–70°Cto200°C).
Maximum RTD extension wire length
AWG Feet (meters)
16 4500 (1400)
18 2800 (880)
20 1800 (550)
22 1100 (340)
RTD7AL WIRING
Connectthewiresasshown.
1Note: GroundRTDextensionwireshieldatone
endonly,preferablyatRaychemelectronicsend.
2Note: RTD housing must be properly grounded
using the screw provided.
Electrical schematic of RTD
Red (Source)
White
Red
Red Red (Compensate)
Field Wiring
White (Common return)
RTD DIRECT CONNECTION
Pipe strap
Place strap under heating cable
Conduit
drain
C1D1 INSTALLATION WITH HEATING CABLE
Electrical Wiring Notes:
Mostelectricalcodes(suchasNEC725–15)permitClass1circuits
tooccupythesamecable,enclosure,orracewaywithoutregard
to whether the individual circuits are alternating current or direct
current,providingallconductorsareinsulatedforthemaximum
voltageofanyconductorsinthecable,enclosureorraceway.
Additional Materials Required
• Approvedjunctionbox(suppliedbyothers)
• HAK-C-100
• Pipestrap
Agency approved
Div 1 junction box
(supplied by others)
HAK-C-100
Div 2
Div 1
Pipe strap
Place pipe strap under heating cable