| Temperature
Transmitters, 4-20mA output, 0-10Vdc Output, Head mounted, Din Rail, Rtd Pt100,
0-50mV and thermocouple input | | |
|
TEMPERATURE TRANSMITTERS ( MICROPROCESSOR BASED PROGRAMMABLE )
is the reliable way to transmit a signal to the readout and control system.The
transmitter
will take the low-level signal from the thermocouples, RTD or
0 to 50mV input and convert it to a strong
high-level signal 4-20mA or 0
to 10Vdc output, which can be transmitted over long distances without compromising
or weaken the signal. The signal can be sent to the readout and control system
with twisted nickel plated copper wires instead of using high cost thermocouple
wires when using a direct wiring system. Direct wiring system can cause problems,
especially when running over long distances. Signal from the thermocouple or RTD
are very weak and can be easily affected by RFI and EMI interferences. These transmitters
are robust and immuned to RFI and EMI interferences. Further more, it can be programmed
to accept thermocouple, Rtd or 0-50mV input. It also allow upscale and downscale
temperature setting. User can set error correction and sensor failure detection
if desire with ease. Non-isolated transmitter
for use with ungrounded probes. Isolated transmitter
could be use with grounded probe. | | |
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| Abbreviations | go
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| THX
= Thermocouple head with temperature transmitter assembly J
= Type J thermocouple calibration 14D
= 1/4" O.D. sheath L12
= 12 inches long probe 304
= Stainless Steel 304 tube URT
= Grounded round tip GG
= Fiberglass wire insulation FEP=
Teflon wire insulation 1/2-1/2
= 1/2" NPT process, 1/2" NPT conduit 3/4-3/4
= 3/4" NPT process, 3/4" NPT conduit AH
= Cast Aluminum Head AHX
= Explosion proof cast aluminum head TX
= Non isolated transmitter TXI
= Isolated transmitter SX
= Stainless Steel Explosion proof head SB
= Stainless Steel 304 hex bushing FL
= Stainless steel 304 compression flange 12SSC2
= 1/2" NPT Stainless steel 304 compression fitting |  
Non Isolated Temperature Transmitter Industrial
head TC sensor USB Programming Cable &
Software |
| |
|  | TxConfig
Cable Adaptor & Software
|
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| THX-J-14D-L12-304-URT-GG-1/2-1/2-
AH-TX
1/4" O.D. Tube 12" long probe type J and Non-Isolated Temperature Transmitter.
1/2" NPT process x 1/2" NPT conduit. SLE thermocouple head assemblies.
THX-K-14D-L12-304-URT-GG-1/2-1/2-
AH-TXI
1/4" O.D. Tube 12" long probe type K and Isolated Temperature Transmitter.
1/2" NPT process x 1/2" NPT conduit. Thermocouple head assemblies.
Available in 3/4" x 3/4"
NPT for the same price | | |
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| THX-K-14D-L12-304-URT-GG-1/2-1/2-
AH-TX-12SSC2
1/4" O.D. Tube 12" long type K thermocouple probe and Non-Isolated Temperature
Transmitter. 1/2" NPT process x 1/2" NPT conduit. Aluminum head with
adjustable compression fitting. |   | | |
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| THX-K-14D-L12-304-URT-GG-1/2-1/2-
AH-TX-SB
1/4" O.D. Tube 12" long type K thermocouple probe and Non-Isolated Temperature
Transmitter. 1/2" NPT process x 1/2" NPT conduit. SLE thermocouple head
assemblies with stainless steel hex bushing.
|  | | |
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| THX-K-14D-L12-304-URT-GG-1/2-1/2-
AH-TX-FL
1/4" O.D. Tube 12" long probe type K thermocouple sensor and Non-Isolated
Temperature Transmitter. 1/2" NPT process x 1/2" NPT conduit. SLE thermocouple
head assemblies with stainless steel compression flange.
| 
Flange
drawing | | |
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| THX-K-14D-L12-304-URT-GG-3/4-3/4-
SX-TX
1/4" O.D. Tube 12" long probe type K thermocouple Non-Isolated Temperature
Transmitter. 3/4" NPT process, 3/4" NPT conduit with stainless steel
304 explosion proof head.
THX-K-14D-L12-304-URT-GG-1/2-3/4-
SX-TXI 1/4"
O.D. Tube 12" long type K thermocouple Isolated Temperature Transmitter.
3/4" NPT process, 3/4" NPT conduit
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| go
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| Installation
and Operating Manual Operation : All inputs
types and the 4-20mA output current are factory calibrated. However, a manual
offset trim is implemented to provide fine adjustments to the signal in the field.
This is accomplished by means of short circuiting terminals 4 (zero) and 1(-).
The transmitter waits 2 seconds before it starts changing the offset. The offset
adjustment is capable of varying the output current by an amount equal to ±0.80mA
relative to the original calibration. After reaching the maximum value ( 0.80mA
above the original current), the output is driven instantly to -0.80mA below the
original current, and continues increasing. When the desired output current (
offset ) is reached, opening the jumper will cause the Txblock to acknowledge
the new offset value. Fine trimming is possible with momentary (2s minimum) jumper
contact. The offset correction can also be
accomplished by the TxConfig software. See in figure 3 the Zero Correction field
for this purpose. The serial adaptor can be connected to the transmitter while
it is operating in the process. | | |
| Note:
when using a Pt100 simulator, make sure the Txblock Pt100 excitation current (0.17mA)
is compatible with the simulator specification. The
input types are listed in Table 1, along with the maximum and minimum ranges accepted
by each one. The TxConfig software will allow only configurations that are consistent
with the data in this table. |  | | |
| | Figure
3 | | |
|  |  | | |
| Table
1 - Txblock input Sensors- Non- Isolated | Table
2 - TxIsoblock input Sensors- Isolated | | |
| Specifications Sensor
Input: User defined. The supported sensors are listed in table 1 and 2 with their
maximum ranges. Thermocouple J, K, T, R, S,
N, and E, according to IEC 60584 (ITS-90). Impedance >>1M Ohms Pt100
Excitation: 180 µA. 2 0r 3 wire connection ( for 2 wire sensors, tie terminals
2 and 3 togehter). Alpha=0.00385, according to IEC 60751(ITS-90) Voltage:
0-50mVdc Impedance >> 1 M Ohms | | |
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