Status SEM320 User Manual

SEM320 USER GUIDE
HART HEAD MOUNT TEMPERATURE TRANSMITTER WITH DISPLAY
TWO WIRE (4 to 20) mA OUTPUT
Important - Please read this document before installing.
Every effort has been taken to ensure the accuracy of this document; however, we
do not accept responsibility for damage, injury, loss or expense resulting from errors
and omissions, and we reserve the right of amendment without notice.
IMPORTANT - CE & SAFETY REQUIREMENTS
Product must be mounted inside a suitable enclosure providing environmental
protection to IP65 or greater.
To maintain CE EMC requirements, input wires must be less than 3 metres.
The product contains no serviceable parts, or internal adjustments. No attempt must
be made to repair this product. Faulty devices must be returned to supplier for
repair.
This product must be installed by a qualified person. All electrical wiring must be
carried out in accordance with the appropriate regulations for the place of
installation.
Before attempting any electrical connection work, please ensure all supplies are
switched off.
ABSOLUTE MAXIMUM CONDITIONS (To exceed may cause damage to the device).
Supply Voltage ± 30 V dc (Protected for over-voltage and reverse
connection)
Current with over-voltage ± 100 mA
Input Voltage ± 3 V between any terminals
Ambient Temperature (-40 to 85) °C, Humidity (10 to 95) % RH (Non-
condensing)
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1~DESCRIPTION.
The device is a universal in-head HART transmitter with display that converts the
sensor output(s) over a configured range to a standard industrial (4 to 20) mA
transmission signal.
The product is a HART generic device so does not need a specific HART file.
Simple HART commands can be performed using a handheld programmer;
advanced commands are entered using the PC USB configuration module and
software; refer to sales@status.co.uk
Calibration set up may be saved as a file on the PC for later use. If required, the
desired range can be specified at the time of order, removing the need for user
configuration.

2~RECEIVING AND UNPACKING.

Please inspect the packaging and instrument thoroughly for any signs of transit
damage. If the instrument has been damaged, please notify your supplier
immediately.

3~SPECIFICATION.

Refer to data sheet for full specification.
Configuration
Factory default Pt100, (0 to 100) °C, upscale burnout, 0.0°C offset

4~INSTALLATION AND WIRING.

4~1 MECHANICAL.

The display device is mounted using a three-pin plastic module support suitable for
fitting into a suitable connection head. The module support is secured into the head
with screws.
The orientation of the display can be adjusted as required by rotating the display in
the module support. Care must be taken to avoid over-stressing any wiring.
The display must be installed with adequate protection from moisture and corrosive
atmospheres. The device must be located so the ambient temperature does not
exceed the specified operating temperature of the device.

4~2 ELECTRICAL.

Electrical connections are made to the two-part screw terminals provided on the
back of the device. The transmitter is protected against reverse connection and
D2620-02-01
over-voltage. If no sensor (input) connection is made, the transmitter will go into
either up or down scale output current, depending on configuration setting.
TURN OFF SUPPLY BEFORE WORKING ON ANY ELECTRICAL CONNECTION
For a wiring diagram, please refer to the rear panel of the device inside the
case housing, and this document.
Two-part connectors are used for input and output connections, allowing the
device to be easily removed if required.
Figure 1: Rear panel layout
Input sensor connections.
Figure 2: Input connections
RTD input wires must be equal length and type.
Sensor connections are as figure 2: to maintain BS EN61326
compliance, sensor wires must be less than 3 metres. All sensor
connections must be isolated from ground.
For RTD dual input use two wire RTDs. If required, user-offsets can be done on
both inputs to known input values.
Thermocouple inputs must use correct compensation cable.
Sensor connections are as figure 2: to maintain BS EN61326 compliance, sensor
wires must be less than 3 metres. All sensor connections must be isolated from
ground.
For dual thermocouple input, both thermocouples must be of the same type.
If required, user-offsets can be done on both inputs to known input values.