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Ultra-Miniature Thermocouple or RTD Temperature Transmitters
TX93A and TX94A

Temperature Transmitters, Ultra-Miniature
±0.1% FS Accuracy
4 to 20 mA DC Output
Only 35.6 mm (1.4") Diameter
Upscale Break Protection
J, K, T, or E Thermocouple Input
100 Ω Platinum RTD Input


1 Year Warranty

Scroll Below to Order Specs Manuals Manuals Mechanical

NEWPORT® Ultra-Miniature temperature transmitters convert millivolt inputs from thermocouples or resistance from RTD’s into 4-20 mA outputs. Transmitters are available in color-coded enclosures covering the four most popular thermocouple types (J, K, T and E) as well as three-wire 100 Ohm platinum RTD’s.

Featuring state-of-the-art integrated circuits and electronic design these ultra-compact transmitters have a diameter of only 35.6mm (1.40”) and are designed to fit in many compact thermowell protection heads such as the Newport NB2.

Newport also provides complete thermocouple and RTD assemblies. Typical stock sensors and transmitters are shown in the ordering guide. Almost any custom assembly is available for fast delivery.

TX93A and TX94A transmitters can eliminate long runs of costly field wiring in a variety of applications. A stable 4 to 20 mA output signal is provided proportional to the transmitters specific input type and calibrated temperature range. Adjustability of ±25% for zero and span is provided to facilitate some rangeability. The transmitted signal eliminates noise pickup, voltage drops, multiple cold junction errors and requires only a twisted pair of copper wire for loop connections.


TX93A/TX94A
All models and ranges of these Newport ultra-miniature transmitters are available with fully epoxy-potted electronics
(specify -P option) providing the ultimate protection in extreme environments.


SPECIFICATIONS

Output Range: 4-20 mA dc
Zero and Span Adjustment Range: ±25%
Accuracy: ±0.1% of FS
(includes effects of linearity, hysteresis and repeatability)
Frequency Response: 3dB @ 3 Hz
Operating Temperature Range:
-25 to 85°C (-13 to 185°F)
Storage Temperature Range:
-65 to 125°C (-85 to 257°F)
Supply Voltage:
8-35 Vdc, 24V recommended
Max Loop
Resistance:   
Vs – 8
0.020A
Dimensions: 35.6 mm Dia. x 23.6 mm H (1.40" x 0.93")
height includes terminal strip
Weight: 15 g ( 0.53 oz.);
25 g (0.8 oz) if epoxy-potted.


Industrial Thermocouple Protection Head
Industrial Thermocouple Protection Head
Available from Newport

RANGE CODES
Range
TX93A
TX94A
J
K
T
E
RTD
-40 to 49°C (-40 to 120°F)
J1
-
-
E1
1
-18 to 93°C (0 to 200°F)
J2
K2
T2
E2
2
-18 to 149°C (0 to 300°F)
J3
K3
T3
E3
3
-18 to 260°C (0 to 500°F)
J4
K4
T4
E4
4
-18 to 399°C (0 to 750°F)
J5
K5
T5
E5
5
-18 to 538°C (0 to 1000°F)
J6
K6
-
E6
6
- Not an available range


Product Selection (Specify Model Number, see variations below in partnumber builder table)
 Part Number   Availability   Price    Description   
 Thermocouple Transmitters
 TX93A-J1 in-stock    $104.50     Thermocouple transmitter -40 to 49°C (-40 to 120°F) J TYPE  
 TX93A-K2 in-stock    $104.50     Thermocouple transmitter -18 to 93°C (0 to 200°F) K TYPE  
 TX93A-K3 in-stock    $104.50     Thermocouple transmitter -18 to 149°C (0 to 300°F) K TYPE  
 TX93A-T2 in-stock    $104.50     Thermocouple transmitter -18 to 93°C (0 to 200°F) T TYPE  
 TX93A-T3 in-stock    $104.50     Thermocouple transmitter -18 to 149°C (0 to 300°F) T TYPE  
 TX93A-E3 in-stock    $104.50     Thermocouple transmitter -18 to 149°C (0 to 300°F) E TYPE  
 RTD Transmitters
 TX94A-1 in-stock    $114.50     RTD transmitter -40 to 49°C (-40 to 120°F)  
 TX94A-4 in-stock    $114.50     RTD transmitter -18 to 260°C (0 to 500°F)  
 TX94A-6 in-stock    $114.50     RTD transmitter -18 to 538°C (0 to 1000°F)  
 Probe and Transmitter Assembly
 NB2TX93A-J2 6 Weeks    $143.50     TX93A-J2 mounted into a NB2 aluminum protection head, with 12" ungrounded probe, type J, 304 SS sheath 1/4" diameter  
 PRTX94A-2 3 Weeks    $202.00     TX94A-2 mounted into a PR14 miniature aluminum protection head, with 12" sheath length, 1/4" probe diameter  
 Accessories
 PSR-24L in-stock    $66.00     Regulated power supply, US plug, 90-264 Vac input, 24 Vdc output, 400 mA, stripped leads, UL  
 PSR-24L-230 in-stock    $66.00     Regulated power supply, European plug, 230 Vac input, 24 Vdc output. 400 mA, stripped leads, CE  
 PSU-93 in-stock    $50.00     Unregulated power supply  
 TX82B in-stock    $168.00     Process loop-powered indicator  
 
All dollar amounts on this site are shown in US currency.

 Note: (1) Thermocouple models, output proportional to mV output of thermocouple. Not linearized to temperature. (2) Non-isolated unit for use with ungrounded probes. (3) Each unit supplied with complete operator’s manual.
 Ordering Example: (1) TX93A-J4 J4, type J, transmitter with -18 to 260°C (0 to 500°F) range = $104.5
 Part Number Builder
(1) (2) (3)
-
-
Option Descriptions
(1) Transmitter Type
  Select
TX93A for Thermocouple transmitter
TX94A for RTD transmitter
NB2TX93A for Probe assembly with Thermocouple transmitter
PRTX94A for Probe assembly with RTD transmitter
(2) Sensor Type and Temperature Range
  Select
J1 for J Thermocouple -40 to 49°C (-40 to 120°F)
E1 for E Thermocouple -40 to 49°C (-40 to 120°F)
J2 for J Thermocouple -18 to 93°C (0 to 200°F)
K2 for K Thermocouple -18 to 93°C (0 to 200°F)
T2 for T Thermocouple -18 to 93°C (0 to 200°F)
E2 for E Thermocouple -18 to 93°C (0 to 200°F)
J3 for J Thermocouple -18 to 149°C (0 to 300°F)
K3 for K Thermocouple -18 to 149°C (0 to 300°F)
T3 for T Thermocouple -18 to 149°C (0 to 300°F)
E3 for E Thermocouple -18 to 149°C (0 to 300°F)
J4 for J Thermocouple -18 to 260°C (0 to 500°F)
K4 for K Thermocouple -18 to 260°C (0 to 500°F)
T4 for T Thermocouple -18 to 260°C (0 to 500°F)
E4 for E Thermocouple -18 to 260°C (0 to 500°F)
J5 for J Thermocouple -18 to 399°C (0 to 750°F)
K5 for K Thermocouple -18 to 399°C (0 to 750°F)
E5 for E Thermocouple -18 to 399°C (0 to 750°F)
J6 for J Thermocouple -18 to 538°C (0 to 1000°F)
K6 for K Thermocouple -18 to 538°C (0 to 1000°F)
E6 for E Thermocouple -18 to 538°C (0 to 1000°F)
1 for RTD -40 to 49°C (-40 to 120°F)
2 for RTD -18 to 93°C (0 to 200°F)
3 for RTD -18 to 149°C (0 to 300°F)
4 for RTD -18 to 260°C (0 to 500°F)
5 for RTD -18 to 399°C (0 to 750°F)
6 for RTD -18 to 538°C (0 to 1000°F)
(3) Option
  Select
Nothing(leave field blank) for no option
-P for Fully Epoxy-Potted Electronics for extreme environments
 NOTE: All combinations may not be valid, check spec sheet for valid part numbers.


   
Keywords: Xmitter, Transmitter, Thermocouple Loop Power, low-cost, Ultra Miniature, complete probe assembly, 4-20 mA transmitters, protection head assemblies, transmit thermocouple signals, RTD transmitter, thermocouple transmitter, 4-20 mA transmitter, TX93A, TX94A

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