Name: KEYILE科译勒 K-PT Integrated Temperature Transmitter/thermocouple
Brand: KEYILE SHOP
SKU: K-PT
Availability: InStock
Rating: 5 (1 reviews)

Description
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Instrument Feature

Adopting silicone rubber or epoxy resin sealing structure, it is shock resistant, moisture resistant, and suitable for installation and use in harsh on-site environments.
Installed on-site in junction boxes for thermocouples and thermal resistors, directly outputting 4-20mA and 0-10mA output signals. This not only saves expensive compensation wire costs, but also improves the anti-interference ability during long-distance signal transmission;
The thermocouple transmitter has an automatic compensation function for cold junction temperature;
High precision, low power consumption, wide temperature range for use, stable and reliable operation;
Widely applicable, it can form an integrated on-site installation structure with thermocouples and thermistors, and can also be installed as a functional module in detection equipment and instrument panels for use;
The intelligent temperature transmitter can communicate with the upper computer through a HART modem or remotely manage, configure, monitor variables, calibrate, and maintain the model, scale, and range of the transmitter through handheld devices and PCs;
The intelligent temperature transmitter can adjust the display direction of the transmitter according to the actual needs of the user, and display the medium temperature measured by the transmitter, changes in sensor values, output current, and percentage.

Application Field

A temperature transmitter is a device that converts temperature signals into measurable electrical signals and is commonly used in various fields. Power industry: used to monitor the operating temperature of wind turbines to ensure the stable operation of the power system; Petrochemical industry: can be used to monitor the temperature inside the reactor to avoid explosions or accidents. Environmental monitoring: It can be installed in various environmental monitoring devices to monitor temperature changes in the atmosphere, water bodies, soil, and other environments; In meteorological observation stations, temperature transmitters can monitor air temperature in real time.

Working Principle

Thermocouples or thermal resistance sensors convert the measured temperature into electrical signals, which are then sent to the input network of the transmitter. This network includes relevant circuits such as zeroing and thermocouple compensation. The zero adjusted signal is input to an operational amplifier for signal amplification. The amplified signal is then processed by a V/I converter and output as a 4-20mA DC current; The other path is processed by an A/D converter and displayed in the header. There are two types of linearization circuits for transmitters, both of which use feedback methods. For thermistor sensors, calibrate using positive feedback method, and for thermocouple sensors, calibrate using multi segment line approximation method. There are two display modes. The temperature transmitter for LCD display outputs using a two-wire system, while the temperature transmitter for LED display outputs using a three wire system.

Product Line


Threaded temperature transmitter	Sleeve type temperature transmitter		Standard Hirschman temperature transmitter

Hessman high-temperature type		Probe thermocouple

Technical Specification

1. Technical parameters of 2088 meter digital temperature transmitter

Two wire working mode
Input signal: Pt100/-1999.9~600.0 ℃, with one decimal point for the full range.
-Within the temperature range of 199.9-600.0 ℃, the zero point and range of the transmission output can be freely set; The button operation and calibration method are simple and fast;
The integrated intelligent temperature transmitter adopts a microcontroller circuit, which reliably and accurately completes the collection and conditioning of sensor signals and the output of loop current changes

Power supply	DC13～36V; Load resistance ≤600Ω (when powered by 24V)
Signal range	Pt100/-199.9～600.0℃
Input impedance	>1MΩ
Sampling rate	5 times/second
Measurement accuracy	±0.2％FS
Output accuracy	±0.2％
Display range	-199.9℃～600.0℃
Display mode	0.36" four-digit red digital tube
Temperature drift	<50ppm/℃
Working temperature	－20～80℃
Relative humidity	<85%RH
Protection level	IP65

2. Hirschmann joint technical parameters

On-site display	Without display With display
Output signal	4-20mA
Accuracy	0.5%
Power supply	24V±10%
Temperature measurement range	50°C-600°C
Stable performance	<0.2F.S/year
Case protection	IP65 (waterproof and dustproof)
Case material	304 stainless steel (conventional); others can be customized

3. Thermocouple technical parameters

Product name	Assembled hot couple/resistor
Graduation number	Default K type (can be made into PT100/E/CU50, etc.)
Probe length L1	200 (customizable length)
Probe length R	Default pipe diameter 16mm (others can be customized 8, 10, 12, 20, 25,etc.)
Thread	Thread default M27*2 (customizable)
Cold end length L2	100mm (customizable length)
Transmitter output	4-20mA 1-5V optional (transmitter required)
Special requirements	Transmitter, waterproof, anti-corrosion
Installation requirements	Flange, clamp, straight plug, threaded base
Terminal box length L3	80mm
Terminal box length L4	(default) 76.7mm

T is the absolute value of the measured temperature

Category (code)	Graduati on number	Casing outer diameter (d)	Used temperature (°C)	Maximum operating temperature (°C)	Temperature range	Allowable deviation △t
Nickelchromiumconstantan	E	≥φ3	600	700	0~700	± 2.5℃Or
Nickelchromiumnickelsilicon	K	≥φ3	800	950	0~900	± 2.5℃or
Copperconstantan	T	≥φ3	350	400	<-200	Not regulated
Copperconstantan	T	≥φ3	350	400	-40~350	± 1℃or

When the temperature changes step by step, the time it takes for the output of the thermocouple to change to 50% of the step change is called the thermal response time, which is represented by T0.5. Insulation resistance When the ambient air temperature is 20±1.5℃ and the relative humidity is not greater than 80%, the insulation resistance value between the wire and the outer sleeve of the insulated armored thermocouple shall comply with the provisions of the following table.

Wire diameter (mm)	Test voltage (V-DC)	Insulation resistance (MΩ.m)
1.5	50±10%	≥1000
>1.5	500±10%	≥1000

The radius of curvature of the flexible armored thermocouple shall not be less than 5 times itsouter diameter. Thermal response time of armored thermocouple:

Thermal response time T0.5S	Shell type	Insulation type
Casing diameter (mm)	Shell type	Insulation type
2.0	0.4	0.5
3.0	0.6	1.2
4.0	0.8	2.5
5.0	1.2	4.0
6.0	2.0	6.0
8.0	4.0	8.0

Standard Specifications for Outer Diameter and Nominal Length of Armored Thermocouples

φ 8	φ 6	φ 5	φ 4	φ 3
50	50	50	50	50
75	75	75	75	75
100	100	100	100	100
150	150	150	150	150
200	200	200	200	200
250	250	250	250	250
300	300	300	300	300
400	400	400	400	400
500	500	500	500	500
750	750	750	750	750
1000	1000	1000	1000	1000
	1250	1250	1250	1250
	1500	1500	1500	1500
	2000	2000	2000	2000
		2500	2500	2500
		3000	3000	3000
		4000	4000	4000
			5000	5000
			7500	7500
			10000	10000
				15000

Armored thermocouple outer diameter d (mm)

Note:

The nominal total length L of the ￠3 insulated armored thermocouple shall not exceed 10000mm.
For armored thermocouples with an outer diameter d≤￠5mm and products with splash-proof or waterproof junction boxes,users should pay attention during installation that the exposed part of the thermocouple must be equipped with auxiliary supports such as brackets to increase rigidity and ensure firmness to prevent the junction box from shaking back and forth and damaging the thermocouple.

4. Probe thermocouple technical parameters

Product name	Probe type thermocouple
Wire length	1~5 meters optional
Mounting thread	M8*1.25mm
Measurement temperature	0~400°C
Probe diameter	Diameters are 0.5, 1.5, 2,2.3, 2.5, 3, 4, 5, 6, 8, 10mm,etc. for selection
Probe length	50~200mm optional
Probe material	Stainless steel
Terminal	U-shaped terminal

KEYILE科译勒 K-PT Integrated Temperature Transmitter/thermocouple

Description

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