Omega Engineering TX802RTDF manual TX802RTD only

TX802RTD ONLY

TX802RTD Specifications.

RTD Input		CU10 RTD (3 Wire Type) Standard.
		Sensor Current = 0.8mA.
		Lead Wire Resistance = 10Ω/Wire Max.
		Field Programmable Zero: -200C (-400F) to 200C (400F). (TX802RTD Only.)
		Field Programmable Span: 20C (40F) to 400C (800F). (TX802 RTD Only.)
		Suitable for 2 Wire Connection. (Offset Calibration needed.)
		Other Types of RTD Available. JIS Pt100, Pt250, Pt500,
		Pt1000, CU10, CU100, Ni100 or specify.
Output	-mA	2 wire 4~20mA. (Loop Powered.)
	-mV	40~200mV µ 4~20mA. (Indicative Test Signal Only.)
		Other Output Voltages Available. e.g. 1~5V.
Power Supply		8~40Vdc.
Supply Voltage Sensitivty		<±0.005%/V FSO.

Input Programming Pt100 only

If the input range is not listed in the programming table, use the following formulae to work out the Zero and Span DIP switch settings for gain.

deg C Span Gain =	1200
	deg C High - deg C Low
deg C Zero Gain =	deg C Low
	5

If Zero Gain is 1/ +ve Put S3-1 OFF (Positive Offset) 2/ -ve Put S3-1 ON (Negative Offset)

Note: Enter the Zero or Span gain value into the appropriate Zero or Span DIP switch.

deg F Spain Gain =				2400
		deg F High - deg F Low
deg F Zero Gain =				deg F Low
				10
	Gain Value	1	2	4	8	16	32
	DIP Switch No.	1	2	3	4	5	6

So if a gain value of 28 is required, put DIP switch No's 3, 4, 5 OFF (ie, gains of 4 + 8 + 16 = 28) and all the other DIP switches ON. Dip switches are accessed by seperating the two halves of the enclosure

Output Load Resistance			800W @ 24Vdc. (50W/V Above 8Vdc.)
	Maximum Output Current		Limited to <28mA.
	Sensor Fail	-Upscale	23mA Min.
		-Downscale	3.6mA Max.
Accurate to		<±0.1% FSO Typical.
	Linearity & Repeatability		<±0.1% FSO Typical.
	Ambient Drift		<±0.02%/C FSO Typical.
	Noise Immunity		125dB CMRR Average. (2.0kVac RMS Limit.)
	R.F. Immunity		<1% Effect FSO Typical.
	Isolation Voltage		2.0kVac\dc Input to Output for 60sec.
	Response Time		200msec Typical. (10 to 90% 50msec Typical.)
	Operating Temperature		0~70C.
	Storage Temperature		-20~80C.
	Operating Humidity		90%RH Max. Non-Condensing.
	Construction		6.6 Polyamide Thermoplastic Rail Mount Enclosure.

Note 1. Specifications based on Standard Calibration Unit, unless otherwise specified.

Note 2. Due to ongoing research and development, designs, specifications, and documentation are subject to change without notification. No liability will be accepted for errors, omissions or amendments to this specification.

Examples of Input Connection.

40~200mV Test Signal

Terminations.

Input

Input

Output

1

A

1

A

T 6

+

mV

-

I n p u t 1

A

2

B

2

B

2

B

-

5

+

E.g. Loop Indicator,

3

B

Link 2 & 3

B

-

With 4~20mA Input.

O u t p u t 4

+mA

3

3

B ZERO

SPAN

+

4

5

-mA

8~40Vdc

2000V

Isolation Barrier

-

6

mV TEST

2 Wire RTD

OR

3 Wire RTD

Power Supply

+

(Typ. 24Vdc.)

Plan View of TX802RTD Adjustments (Pt100 only)

OFF	ON	1	S1	Input Terminals
Gain = 1	Gain = 0
Gain = 2	Gain = 0	2	Zero
Gain = 4	Gain = 0	3
		4
Gain = 8	Gain = 0				OFF	ON
Gain = 16	Gain = 0	5	S3	1
					- Ve Offset	+ Ve Offset
		6
Gain = 32	Gain = 0		Function	2	Celsius	Fahrenheit
		ON
				3	Upscale Break	Downscale
OFF	ON
			S2	4	Break
Gain = 1	Gain = 0	1
				ON	25 Turn Trimpot for ZERO ±10%
Gain = 2	Gain = 0	2	Span
					25 Turn Trimpot for SPAN ±10%
Gain = 4	Gain = 0	3
Gain = 8	Gain = 0	4
Gain = 16	Gain = 0	5
Gain = 32	Gain = 0	6

ON

LED Indication of Loop Current.

Power Supply Terminals

Input Range Programming Table Pt100 only.

Notes:1/ Switch status 1 = ON, 0 = OFF, X = DON'T CARE.

2/ Input ranges with '*' beside them require more adjustment by the Span trimpot.

Input Range C	Input Range F			S1-Zero							S2-Span					S3-Function
(Put S5-2 OFF)	(Put S5-2 ON)	1	2		3	4	5	6	1	2		3	4	5	6	1	2		3	4
0~20C	0~40F	1	1		1	1	1	1	1	1		0	0	0	0	X
0~25C	0~50F	1	1		1	1	1	1	1	1		1	1	0	0	X		TO '1' FOR FAHRENHEIT.	'1' for DOWNSCALE Sensor Break.	'0' for DOWNSCALE Sensor Break.
0~30C	0~60F	1	1		1	1	1	1	1	1		1	0	1	0	X
0~40C	0~80F	1	1		1	1	1	1	1	0		0	0	0	1	X
0~50C	0~100F	1	1		1	1	1	1	1	1		1	0	0	1	X
0~60C	0~120F	1	1		1	1	1	1	1	1		0	1	0	1	X
0~70C*	0~140F*	1	1		1	1	1	1	0	1		1	1	0	1	X
0~75C	0~150F	1	1		1	1	1	1	1	1		1	1	0	1	X
0~80C	0~160F	1	1		1	1	1	1	0	0		0	0	1	1	X
0~90C*	0~180F*	1	1		1	1	1	1	0	1		0	0	1	1	X
0~100C	0~200F	1	1		1	1	1	1	1	1		0	0	1	1	X
0~110C	0~220F	1	1		1	1	1	1	0	0		1	0	1	1	X
0~120C	0~240F	1	1		1	1	1	1	1	0		1	0	1	1	X
0~125C*	0~250F*	1	1		1	1	1	1	1	0		1	0	1	1	X
0~150C	0~300F	1	1		1	1	1	1	1	1		1	0	1	1	X
0~200C	0~400F	1	1		1	1	1	1	1	0		0	1	1	1	X
0~250C*	0~500F*	1	1		1	1	1	1	0	1		0	1	1	1	X
0~300C	0~600F	1	1		1	1	1	1	1	1		0	1	1	1	X
0~400C	0~800F	1	1		1	1	1	1	0	0		1	1	1	1	X		TO '0' FOR CELCIUS. SET	for UPSCALE Sensor Break. Set to	for UPSCALE Sensor Break. Set to
0~600C	0~1200F	1	1		1	1	1	1	1	0		1	1	1	1	X
-10~10C	-20~20F	1	0		1	1	1	1	1	1		0	0	0	0	1
-10~20C	-20~40F	1	0		1	1	1	1	1	1		1	0	1	0	1
-10~40C	-20~80F	1	0		1	1	1	1	1	1		1	0	0	1	1
-20~20C	-40~40F	1	1		0	1	1	1	1	0		0	0	0	1	1
-20~30C	-40~60F	1	1		0	1	1	1	1	1		1	0	0	1	1
-25~25C	-50~50F	0	1		0	1	1	1	1	1		1	0	0	1	1
-25~50C	-50~100F	0	1		0	1	1	1	1	1		1	1	0	1	1
-30~20C	-60~40F	1	0		0	1	1	1	1	1		1	0	0	1	1
-50~50C	-100~100F	1	0		1	0	1	1	1	1		0	0	1	1	1
-50~100C	-100~200F	1	0		1	0	1	1	1	1		1	0	1	1	1
-50~150C	-100~300F	1	0		1	0	1	1	1	0		0	1	1	1	1
-100~100C	-200~200F	1	1		0	1	0	1	1	0		0	1	1	1	1
-100~200C	-200~400F	1	1		0	1	0	1	1	1		0	1	1	1	1
-200~200C	-400~400F	1	1		1	0	1	0	0	0		1	1	1	1	1
-200~400C	-400~800F	1	1		1	0	1	0	1	0		1	1	1	1	1
																		SET
20~40C	40~80F	1	1		0	1	1	1	1	1		0	0	0	0	0			to '0'	to '1'
50~100C	100~200F	1	0		1	0	1	1	1	1		1	0	0	1	0
50~150C	100~300F	1	0		1	0	1	1	1	1		0	0	1	1	0
																			Set	Set
100~200C	200~400F	1	1		0	1	0	1	1	1		0	0	1	1	0
100~500C	200~1000F	1	1		0	1	0	1	0	0		1	1	1	1	0