LOW COST TEMPERATURE TRANSMITTER
SEM104 SERIES
LOW COST
USER RE-RANGEABLE
Pt100 INPUT
THERMOCOUPLE INPUT K, T OR J
TWO WIRE (4 TO 20) mA OUTPUT
2 YEAR WARRANTY
INTRODUCTION
The SEM104 series is a (4 to 20) mA temperature sensor transmitter which can be housed in a head mount DIN standard
connector. The SEM104P for Pt100 and SEM104TC for Thermocouple inputs are field rangeable if necessary by links on the
printed circuit board and the use of on board SPAN and ZERO potentiometers.A wide selection of compatible probe assemblies
are available with various immersion lengths and process connections.
S P E C I F I C AT I O N S @ 2 0 ° C
Output
Loop Supply
Max. Loop Load
Loop Volts Sensitivity
Temp. Stability
Zero
Span
Ambient Temperature*
Ambient RH
EMC Compatibility
(4 to 20) mA loop powered,
maximum 30 mA
(10 to 30) VDC reverse
connection protected
(V.Supply -10)
0.020
10 µA/V
Drift type. 0.02 %/°C FRO
Type. 0.005 %/C FRO
(0 to 70) °C operating
(*at 24 V supply 250
Ω
load)
(0 to 95) % RH non condensing
BS EN61326
SEM104P PLATINUM RESISTANCE SENSOR
Pt100 Input
Accuracy
Response
Offset Adjustment
Span Adjustment
BS EN 60751, DIN43760
± 0.2 °C plus ± 0.2 % rdg
100 ms to reach 70 % of final value
Range dependant
(25 to 500) °C
SEM104K, T OR J THERMOCOUPLE SENSOR
(ISOLATED JUNCTION)
Output
Accuracy
Response
Offset Adjustment
(4 to 20) mA (directly
proportional to mV input)
± 0.1 %FS plus cold junction
errors non-linearised
100 ms to reach 70 % of final value
± 100 °C, solder link
and potentiometer
(100 to 1000) °C
>1M
Ω
Up scale standard.
Downscale by link
Automatic (0 to 70) °C
Accuracy 0.2 °C @ 20 °C
Tracking + 0.05 °C/°C
RANGE °C
-30 to 35
-25 to 75
0 to 50
0 to 100
0 to 150
0 to 200
0 to 400
0 to 600
0 to 800
0 to 1000
SEM104P
•
•
•
•
•
•
•
SEM104K
SEM104T
SEM104J
Span Adjustment
Impedance
Burn Out
Cold Junction
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Other ranges can be configured by the use of links on the SEM
PCB, full details are supplied with each transmitter.
LOW COST TEMPERATURE TRANSMITTER
M E C H A N I C A L D E TA I L S
(All dimensions in mm)
Ø42
23
33
CONNECTIONS
+
TC
-
V Supply
24 V Typical
Pt100
2 or 3 wire
LOOP
LOAD
ORDER CODE
SEM104
SENSOR
/
Lo
/
Hi
Platinum Resistance Sensor Pt100
Chromel/Alumel Thermocouple
Copper/Constantan Thermocouple
Iron/Constantan Thermocouple
ACCESSORIES:
RMK/1/G
RMK/3-T
P
K
T
J
@ 4 mA @ 20 mA
“G” DIN rail profile mounting kit
Top Hat DIN rail profile mounting kit
Status Instruments Ltd
Green Lane Business Park
Green Lane, Tewkesbury
Gloucestershire, UK
GL20 8DE
Tel: +44 (0)1684 296818
Fax: +44 (0)1684 293746
Email: sales@status.co.uk
Website: www.status.co.uk
52-215-2075-02 Issue 02
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