SEM215 STATUS, SEM215 Datasheet

SEM215

Manufacturer Part Number

SEM215

Description

TRANSMITTER, DIN RAIL SMART

Manufacturer

STATUS

Datasheet

1.SEM215.pdf (4 pages)

Specifications of SEM215

Input Type

PT100

Output Type

4-20mA

Output Accuracy

Â± 0.01%

Supply Voltage

35V

No. Of Input Channels

Mounting Type

DIN

No. Of Channels

Rohs Compliant

N, Mv

-10 TO 75mV

Accuracy

-0000

Lead Free Status / RoHS Status

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D I N R A I L S M A RT U N I V E R S A L T E M P E R AT U R E T R A N S M I T T E R

SEM215

The SEM215 is a universal DIN rail mounted temperature transmitter that accepts most commonly used temperature sensors,

slide wire transducers or millivolt signals, isolates and transmits them as a (4 to 20) mA signal to a host system. It can be

configured by either of the following methods:

Configuration using “Quick Selector”

One of 59 pre-set ranges can be selected by using switches. The switch, located close to the rail clip, is inaccessible in

normal use. This “Quick Selector” method does not require any additional calibration, and the transmitter can be put into

service immediately after selection is made.

Configuration via PC

The sensor type and range are easily programmed using a PC and a simple Windows based software programme. This allows

for re-programming or interrogation of the SEM215 while it is installed in the loop. Sensors can be changed without the need

for re-calibration. Special sensors can be accommodated by using the type “X” option, the characterisation for these sensors

are factory entered for later retrieval from the menus.

The transmitter is very compact enabling a high packing density to be achieved and by using the latest tension clamp

technology for the two part terminals, connections are made in half the time taken to wire conventional screw terminals.

These terminations are maintenance free and the tension clamp ensures that the contact is permanently under tension

eliminating any potential problem of loosening due to temperature fluctuations or vibration.

INPUTS

Pt100 Platinum resistance sensors, Thermocouples, millivolts or

Slidewire sensors may be connected to the unit, plus a ‘type X’

linearisation option which may be pre-configured at the factory to

satisfy any custom characterisation requirements.

The Process Variable may be filtered to remove incoming signal

noise using one of four settings. If the ‘Adaptive’ function is

selected the filter continuously adjusts to the incoming signal to

noise ratio in order to choose an appropriate level of filtering. In

this way a slowly changing input can be heavily filtered but if the

signal goes through a sudden change the filter quickly reduces

allowing a rapid response, other settings are; off, 2 seconds, 10

seconds.

A user programmable offset is available to remove any system

errors that may be present and sensor referencing enables the

transmitter to be accurately matched to a particular sensor.

I N T R O D U C T I O N

UNIVERSAL INPUT

QUICK SELECTOR / PC CONFIGURABLE

GALVANICALLY ISOLATED

LOOP POWERED

COMPACT DIN RAIL MOUNTED

10 YEAR WARRANTY

CURRENT OUTPUTS

In normal operation the current output varies between 4 and 20

mA. If the input sensor develops a fault, or the software in either

o f t h e t w o m i c r o p r o c e s s o r s d e t e c t s a n e r r o r, t h e n t h e

current output is driven either upscale (greater than 20 mA) or

downscale (less than 4 mA) depending upon the sense of the

burnout parameter selected.

BLOCK DIAGRAM SEM215 schematic

ADC

µP

1/on

Range Selection

ADC PSU

Main

µP

Comms

DAC

Burnout 0 = high

Units 0 = °C

Loop

V+

V-

Related parts for SEM215

SEM215 Summary of contents

Page 1

... The sensor type and range are easily programmed using a PC and a simple Windows based software programme. This allows for re-programming or interrogation of the SEM215 while it is installed in the loop. Sensors can be changed without the need for re-calibration. Special sensors can be accommodated by using the type “X” option, the characterisation for these sensors are factory entered for later retrieval from the menus ...

Page 2

...

Page 3

... CONFIGURATION DIAGRAM USING THE CONFIGURATOR MODULE WITH POWER SUPPLY No sensor necessary SEM215 Full configuration details are supplied with each unit. USING EXISTING LOOP POWER No sensor necessary SEM215 CONFIGURATION CONNECTIONS 99 18.25 10 INTERFACE ADAPTER CONFIGURATION MODULE PSU 24 VDC Minimum load 250 Ω ...

Page 4

... ORDER CODE SEM215 RCPW-KIT-UK RCPW-KIT-EUR RCPW-KIT-USA RCPW-KIT-AUS *Free updates and demo software available from our website. SENSOR TEMPERATURE TYPE RANGE °C Type K T 800 Type K T 1000 Type K T 1200 Type J T/C ...

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