RTD In-Head Temperature Transmitter |
| TX12 |
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The TX12 head mounted
temperature transmitter connects
to any standard pt100 resistance
sensor and converts the linearized
temperature to a 4 to 20 mA signal.
The transmitter is a two wire device,
and is fully configurable by the user,
over a wide temperature range, with
the aid of a simple push button. This
new TX12 design incorporates
additional configuration menus,
allowing the user to push button trim
the transmitter output at both zero
and span, ideal for trimming out
sensor errors. The transmitters
advanced circuitry guaranties high
stability over the wide operating
ambient temperature ranges
experienced by head mounted
devices.
One of the transmitters features is
the program LED, which provides
visual indication of sensor fault
when in normal operation and is
also used to guide the operator
through the simple menus during
configuration.
SPECIFICATIONS
Input
Sensor Type: Pt100 100 Ω @ 0°C 2 or 3 Wire
Sensor Range: -200 to 850°C (-328 to 1562°F)
Sensor Connection: Screw terminal
Minimum Span: 25°C (77°F)
Linearisation: BS EN 60751(IEC 751) standard/JISC 1604
Measurement Accuracy: 0.1°C ±0.05% of reading
Thermal Drift: 25 ppm/°C
Excitation Current: <200 uA
Lead Resistance Effect: 0.002°C/Ω
Maximum Lead Resistance: 20 Ω per leg
Output
Output Type: 2 wire, 4 to 20 mA current loop
Output Range: (4.0 to 20.0) mA
Output Connection: Screw terminal
Maximum Output: 21.5 mA (in high burnout condition)
Minimum Output: 3.8 mA (in low burnout condition)
Accuracy: (mA output /2000) or 5 uA (whichever is the greater)
Loop Voltage Effect: 0.2 uA/V
Thermal Drift: 1 uA /°C
Maximum Output Load: [(Vsupply-10)/20]K Ω
(Example: 700 Ω @ 24V)
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 Vdc
Environmental
Ambient Operating Range: -40 to 85°C (-40 to 185°F)
Ambient Storage Temperature: -50 to 90°C (-58 to 194°F)
Ambient Humidity Range: 10 to 90% RH non condensing
Physical
Dimensions: 43 diameter; 21 mm height (1.7; 0.8")
Weight: 31 g (0.068 lb) (encapsulated)
Approvals
EMC - BS EN 61326 :1998: 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 m to comply.
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† Price are shown in RMB.
Note: Comes with operator’s manual.
Ordering Example: (1) TX12 RTD transmitter (100 Ohm, Pt 0.00385), ¥1,475.00
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