Miniature Low-Cost Temperature Transmitters

Temperature Transmitters, Miniature Low Cost

:Miniature Low-Cost Temperature Transmitters

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^$ 109.00 TX91A-J2

•	Two-Wire Transmitter
•	4-20 mAdc Output
•	±0.1% Accuracy
•	Upscale Break Protection
•	Non-Isolated
•	Mountable in any Standard Protection Head
•	Accepts J, K, T, E Thermocouple or 100 ohm Platinum RTD Inputs
View related products - Signal Conditioners/Transmitters

The non-isolated TX90A Series transmitters convert thermocouple or RTD signals into a 4 to 20 mA dc signal output that is directly referenced to the mV input of a thermocouple or resistance of a 100 Ohm platinum RTD.

For thermocouple transmitters, the 4 to 20mA output is not linearized. T/C transmitters are available for type K, J, T, and E with color coding for each T/C type. The transmitters for RTD’s are available with the 4 to 20mA output directly proportional to the input resistance or with the 4 to 20mA output linearized to tempearature.

Note, RTD’s are slightly non-linear with the resistance diverging from actual temperature by approximately 1% at the mid point of full scale. (For linearized RTD transmitters, specify “RTD-L”. Non-linearized transmitters are the more popular choice).

The TX90A transmitters mount directly within OMEGA’s standard protection heads for connection to your sensor. OMEGA also provides complete thermocouple and RTD assemblies.

Specifications
Output Range: 4 to 20 mA dc
Zero and Span Adjustment Range: ±25% for °F and ±10% for °C
Accuracy: ±0.1% of FS (includes effects of linearity, hysteresis and repeatability) referenced to the mV input
Operating Temperature Range: -40 to 85°C (-40 to 185°F)
Storage Temperature Range: -46 to 121°C (-50 to 250°F)
Max Loop Resistance: (Vs – 8) / 0.020A
Supply Voltage: 8-50 Vdc, 24V nominal
Dimensions: 44.5 D x 31.75 mm H (1.75 x 1.25"); height includes terminal strip

Range Codes

TX91A				TX92A		Range
J	K	T	E	RTD	RTD-L
–	–	–	–	1	1-L	-40 to 60°C (-40 to 140°F)
J2	K2	T2	E2	2	2-L	-18 to 93°C (0 to 200°F)
J3	K3	T3	E3	3	3-L	-18 to 149°C (0 to 300°F)
J4	K4	T4	E4	4	4-L	-18 to 260°C (0 to 500°F)
J5	K5	T5	E5	5	5-L	-18 to 399°C (0 to 750°F)
J6	K6	–	E6	6	6-L	-18 to 538°C (0 to 1000°F)
J7	K7	T7	E7	7	7-L	0 to 100°C (32 to 212°F)
J8	K8	T8	E8	8	8-L	0 to 150°C (32 to 302°F)
J9	K9	T9	E9	9	9-L	0 to 250°C (32 to 482°F)
J10	K10	T10	E10	10	10-L	0 to 400°C (32 to 752°F)
J11	K11	–	E11	–	–	0 to 500°C (32 to 932°F)

To Order (Specify Model Number)

What Other People Bought: When you see this icon, click on it to expand a list of products that other people have bought when they purchased this model.

Part Number	Availability	Price	Description	Qty.

Thermocouple Transmitters

TX91A-K2		$109.00	TYPE K T/C transmitter, Range -18 to 93°C (0 to 200°F)	qty.

TX91A-J4		$109.00	TYPE J T/C transmitter, Range -18 to 260°C (0 to 500°F)	qty.

TX91A-K4		$109.00	TYPE K T/C transmitter, Range -18 to 260°C (0 to 500°F)	qty.

TX91A-T4		$109.00	TYPE T T/C transmitter, Range -18 to 260°C (0 to 500°F)	qty.

TX91A-E4		$109.00	TYPE E T/C transmitter, Range -18 to 260°C (0 to 500°F)	qty.

TX91A-K6		$109.00	TYPE K T/C transmitter, Range -18 to 538°C (0 to 1000°F)	qty.


RTD Transmitters

TX92A-1		$109.00	RTD transmitter 100 ohm, Range -40 to 60°C (-40 to 140°F)	qty.

TX92A-2		$109.00	RTD transmitter 100 ohm, Range -18 to 93°C (0 to 200°F)	qty.

TX92A-3		$109.00	RTD transmitter 100 ohm, Range -18 to 149°C (0 to 300°F)	qty.

TX92A-4		$109.00	RTD transmitter 100 ohm, Range -18 to 260°C (0 to 500°F)	qty.

TX92A-5		$109.00	RTD transmitter 100 ohm, Range -18 to 399°C (0 to 750°F)	qty.

TX92A-6		$109.00	RTD transmitter 100 ohm, Range -18 to 538°C (0 to 1000°F)	qty.


RTD Probe and Transmitter Assembly

PRTXA-1-12	1 Week	$215.00	RTD transmitter with 12 inch Probe and Head, 100 ohm, Range -40 to 60°C (-40 to 140°F)	qty.

PRTXA-2-12	1 Week	$215.00	RTD transmitter with 12 inch Probe and Head, 100 ohm, Range -18 to 93°C (0 to 200°F)	qty.

PRTXA-3-12	1 Week	$215.00	RTD transmitter with 12 inch Probe and Head, 100 ohm, Range -18 to 149°C (0 to 300°F)	qty.

PRTXA-4-12	1 Week	$215.00	RTD transmitter with 12 inch Probe and Head, 100 ohm, Range -18 to 260°C (0 to 500°F)	qty.

PRTXA-5-12	1 Week	$215.00	RTD transmitter with 12 inch Probe and Head, 100 ohm, Range -18 to 399°C (0 to 750°F)	qty.

PRTXA-6-12	1 Week	$215.00	RTD transmitter with 12 inch Probe and Head, 100 ohm, Range -18 to 538°C (0 to 1000°F)	qty.


TC Probe and Transmitter Assembly

NB1TXA-J4	1 Week	$171.00	TX91A-J4 Transmitter in Cast Iron Head with 12"L, 1/4" O.D., ungrounded junction, 304SS sheath probe.	qty.

NB1TXA-K2	1 Week	$171.00	TX91A-J2 Transmitter in Cast Iron Head with 12"L, 1/4" O.D., ungrounded junction, 304SS sheath probe.	qty.

NB1TXA-T4	1 Week	$171.00	TX91A-T4 Transmitter in Cast Iron Head with 12"L, 1/4" O.D., ungrounded junction, 304SS sheath probe.	qty.

NB1TXA-E6	1 Week	$171.00	TX91A-E6 Transmitter in Cast Iron Head with 12"L, 1/4" O.D., ungrounded junction, 304SS sheath probe.	qty.

NBSTXA-J4	2 Weeks	$171.00	TX91A-J4 Transmitter in Aluminum Head with 12"L, 1/4" O.D., ungrounded junction, 304SS sheath probe.	qty.

NBSTXA-K2	2 Weeks	$171.00	TX91A-K2 Transmitter in Aluminum Head with 12"L, 1/4" O.D., ungrounded junction, 304SS sheath probe.	qty.


Accessories

TX90-BR		$18.00	Mounting Bracket for DIN Rail or Mounting to Surface	qty.

TX90-DIN		$27.50	DIN rail mounting adaptor	qty.

RT		$30.00	1.2 m (48") mounting track	qty.

RAIL-35-2		$19.00	2 m (6.5') section 35 mm DIN rail	qty.

PSR-24L		$60.00	Regulated power supply, US plug, 90 to 264 Vac input, 24 Vdc output, 400 mA, stripped leads, UL	qty.

PSR-24S		$60.00	Regulated power supply, US plug, 90 to 264 Vac input, 24 Vdc output, 400 mA, screw terminals, UL	qty.

PSR-24L-230		$60.00	Regulated power supply, 24 Vdc, 400 mA, stripped leads, 230 Vac input, CE	qty.

† All dollar amounts on this site are shown in US currency.

Note: Range Code "T6" is not available

Ordering Example: (1) TX91A-J2 Specifies a Type J transmitter, with 0 to 200°F range, $109.00

Part Number Builder

(1)		(2)	(3)	(4)	(5)
	-

Option Descriptions

(1)

Transmitter Type

Select
TX91A for Thermocouple transmitter only
TX92A for RTD transmitter only
NB1TXA for Thermocouple transmitter with Cast-Iron head and 12 inch probe
NBSTXA for Thermocouple transmitter with Aluminum head and 12 inch probe
PRTXA for RTD transmitter with Cast-Iron head and 12 inch RTD probe

(2)

Input Type

Select
Nothing(leave field blank) for RTD transmitter
J for Type J thermocouple (Iron-Constantan)
K for Type K thermocouple (Chromega®-Alomega®)
T for Type T thermocouple (Copper-Constantan) (ranges 6 and 11 excluded)
E for Type E thermocouple (Chromega®-Constantan)

(3)

Range for transmitter

Select
Nothing(leave field blank) for RTD probe assemblies
1 for -40 to 140°F (RTD only)
2 for 0 to 200°F
3 for 0 to 300°F
4 for 0 to 500°F
5 for 0 to 750°F
6 for 0 to 1000°F (Thermocouple J K E and RTD only)
7 for 0 to 100°C
8 for 0 to 150°C
9 for 0 to 250°C
10 for 0 to 400°C
11 for 0 to 500°C (Thermocouple J K E only)

(4)

Range for RTD probe assemblies only

Select
Nothing(leave field blank) for single transmitter units
1-12 for -40 to 140°F (RTD)
2-12 for 0 to 200°F (RTD)
3-12 for 0 to 300°F (RTD)
4-12 for 0 to 500°F (RTD)
5-12 for 0 to 750°F (RTD)
6-12 for 0 to 1000°F (RTD)
7-12 for 0 to 100°C (RTD)
8-12 for 0 to 150°C (RTD)
9-12 for 0 to 250°C (RTD)
10-12 for 0 to 400°C (RTD)

(5)

Linearized RTD

Select
Nothing(leave field blank) for standard non-linearized transmitter
-L for for the 4-20mA output linearized to temperature and selected range

NOTE: All combinations may not be valid, check spec sheet for valid part numbers.

Related Links - Manual

Product Manual
Download TX92A - RTD Transmitter Manual
Download TX91A - Mini Temperature Transmitter

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