SEM206P Temperature Transmitter for Pt100 Sensors, PC Programmable.

The SEM206P is our entry level PC programmable temperature transmitter. It accepts Pt100 temperature sensors and converts the sensor output  to a standard industrial 4 to 20mA transmission signal.

PC configuration allows the user to select range, units and burnout direction, without requiring calibration equipment. Configuration is performed quickly using our new USB port driven configurator by simply connecting two clips to the SEM206P loop terminals and following the software instructions. Calibration set up may be saved as a file on the PC for later use.

However, if you already know the temperature range you require, we can configure the product for you at no extra cost.

Features

Suitable For Pt100 Sensors
High stability
Over range LED indication
Programmable burnout
Gost Certificate
Sine Vibration Certificate
Can be supplied fitted to our temperature sensors.

Specifications @ 20°C

INPUT:
Sensor Type: PT100 100R @ 0°C 2 or 3 Wire.
Sensor Range : -195 to +845°C (18 to 390Ω)
Sensor Connection: Screw terminal
Minimum span (*1) : 25 °C
Linearisation: BS EN 60751(IEC 751) standard / JISC 1604
Measurement Accuracy (*2) : 0.2 °C ± 0.05 % of Reading.
Thermal Drift: ±0.02 °C / °C.
Excitation current:
Lead Resistance effect: 0.002 °C / Ohm.
Maximum lead Resistance: 20 Ohms per leg.
OUTPUT:
Output Type: 2 wire, 4 to 20mA current loop.
Output range: 4.0 to 20.0mA
Output Connection : Screw terminal
Maximum output: 21.5mA (in high burnout condition)
Minimum output:
Accuracy: (mA output /2000) or 5 uA (Which ever is the greater)
Loop Voltage effect: 0.2 uA / V.
Thermal drift: ±2 uA / °C
Maximum output load: [(Vsupply-10)/21]K Ohms (Example: 700 Ohms @ 24V)

Note *1 Any span may be selected, full accuracy is only guaranteed for spans greater than the minimum recommended.

Note *2 Basic measurement accuracy includes the effects of calibration, linearisation and repeatability.

General Specifications

Update time: 500 ms.
Response Time: 1 second
Start up time: 4 seconds ( I out < 4 mA during start up)
Warm-up time: 1 minute to full accuracy
Power Supply : 10 to 30 Volts dc
Ambient operating range: -40 to +85°C [Full Accuracy only between -30 to +75°C].
Ambient storage temperature: -50 to +90°C.
Ambient humidity range: 10 to 90% RH non condensing
Dimensions: 43 mm diameter; 21 mm height.
Weight: 31 g (encapsulated).
APPROVALS:
EMC – BS EN 61326: Electrical equipment for measurement control and laboratory use.
ANNEX A: Immunity test requirements for equipment intended for use in industrial locations
ANNEX F: Test configurations, operational conditions and performance criteria for transducers with integrated or remote signal conditioning.
IEC 61000-4-2: Electrostatic discharge
IEC 61000-4-3: EM Field
IEC 61000-4-4: Transient Burst (output)
IEC 61000-4-5: Surge (output).

Note – Sensor input wires to be less than 3 metres to comply.

Mechanical Drawing

SEM206P Mechanical Drawing

Electrical Drawing

SEM206P Wiring Diagram