Mighty Module Model SF1302
RTD Input Slim Profile Two Wire Transmitter

ORDERING INFORMATION SF1302, ( ) , ( ) | | | | Temperature Range |   (specify°F or°C) | | Sensor Type: 4270 - 10 Ohm Copper .00427 3850 - 100 Ohm Platinum .00385 3920 - 100 Ohm Platinum .00392 xxxx -  Other RTD (specify)	Catalogue Manual

Features

Description

The SF1302 is a low-cost, reliable, RTD input two-wire transmitter designed with the OEM in mind.  These transmitters are housed in a low profile, 50 mm diameter extruded aluminum case.  This thin design allows two transmitters to be stacked in one standard connection head for use with dual RTD sensors.

The SF1302 provides a DC output current (4/20 mA) proportional to a two-wire RTD input.  Filtering and conditioning to reduce susceptibility to transients and noisy operations provides accurate, trouble-free operation.  Linearization is provided for platinum RTDs.

The SF1302 utilizes a single constant current source to excite the RTD.  The output ZERO and SPAN controls are located on the top of the case.  Zero is adjustable ± 20% and span ± 15%.  Terminations are made to screw terminal connectors on the top of the case.  A center hole provides clearance for 1/4 inch diameter and smaller sensors.

Typical Application

Remote temperature data acquisition.

Mounting

The SF1302 can be mounted in a connection head (TSH-A6L), explosion-proof housing (XJAY), or on a flat surface using the two 4.5 mm diameter mounting holes provided. Standard 33 mm hole center spacing allows for mounting in most connection heads. The 5.08 mm center hole allows clearance for input wiring or for a 3/16 diameter temperature probe.  An optional DIN-Rail mounting kit is available (DMP2000).  Two transmitters can also be stacked in the DIN rail if space is limited.

Specifications

RTD INPUT 2-Wire, 10 ohms to 1000 ohms, Pt, Ni, Cu   (100pT RTD lead resistance 0/1 ohms max.    ie: 24 in. Probe with 24 awg Leads) INPUT RANGE Select any range within RTD limit   (min span 50°F/28°C) EXCITATION CURRENT 2.65 mA OPERATING TEMPERATURE -13°F to 176°F -25°C to  80°C LINEARITY (Pt RTD, output vs. temp) ± 0.05% of span   (-50 to 500°C) ± 0.15% of span (0 to 900°C) POWER  12-36 VDC, polarity protected

SUPPLY VOLTAGE EFFECT 0.02% of span max, 12 to 36 V COMMON MODE REJECTION 120 dB, DC to 60 Hz MAX LOAD RESISTANCE =[(V supply - 10)/20 mA] kilohms RESPONSE TIME - Step Change   150 ms for 99% of final value ACCURACY ± 0.1% of span or 0.02 ohms, whichever is greater OUTPUT RANGE 4/20 mA LOAD RESISTANCE Rmax = (Vsupply - 12V / .020 mA) kilohms TEMPERATURE STABILITY ± 0.02% of span or 0.025°C / °C, whichever is greater

* Within specified range limits