Bộ chuyển đổi tín hiệu điểm sương 4-20mA 350barg -100°C..+20°C ±2°C - Alpha Moisture Systems - Dewpoint Transmitter MT-703984

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Bộ chuyển phát tín hiệu điểm sương 4-20mA  350barg -100°C..+20°C ±2°C - Alpha Moisture Systems - Dewpoint Transmitter MT-703984

 

Model AMT-SD 4/20mA Loop Powered Dewpoint Transmitter

- Sensor: Ultra High Capacitance Aluminium Oxide
- Measuring Range: -100°C to +20°C dewpoint
- Operating Temperature Range: -20°C to 60°C
- Output: 4-20mA linear, loop powered.
- Process Connection: ¾” UNF (male)
- Pressure: Maximum inlet pressure: 350 barg
- IP Rating: IP66 (with connector in place)
 Accuracy: ±2°C Dewpoint

 

Thông số kỹ thuật/ Datasheet

Model AMT
Dewpoint Transmitter 4-20mA. Ranges available between -120°C to +20°C (-184°F to +68°F) dewpoint

Model AMT Dewpoint Transmitter is a two wire 4-20mA loop powered transmitter, used for continuous measurement of moisture in dry process gases or dry compressed air, which will output a linear 4-20mA signal corresponding to the dewpoint temperature. The Model AMT transmitter can also be factory configured to output a 4-20mA linear signal for any other moisture unit e.g. ppm(v), ppm(w), g/m3, lb/MMSCF etc.

Fast Response - Stable - Reliable - Accurate - Easy to Install.
The Ultra High Capacitance sensing element is long lasting and offers excellent sensitivity, repeatability and response speed. Each unit is supplied with a Certificate of Calibration, traceable to International Humidity Standards, validating accuracy better than ±2°C dewpoint.


 

Đặc tính

- 2 Wire Loop Powered Dewpoint Transmitter
- Overall Range: -120°C to +20°C Dewpoint
- Accuracy better than ± 2°C Dewpoint
- INTEGRATED AUTOMATIC CALIBRATION
- Can be configured for linear 4-20mA signal in: °C & °F Dewpoint, ppm(v), ppb(v), g/m3, lb/MMSCF
- Temperature Compensation
- Failure Diagnostics
- Long Term Stability
- Fast Response Time
- IP66 / NEMA4X Protection

The transmitter also incorporates an Automatic Calibration (AUTOCAL) feature, which allows the user to carry out a field calibration / span check. The AUTOCAL feature is operated by two small button switches built within the transmitter enclosure. To avoid tamper, the switches are locked in normal use and can only be activated by following a specific routine from the manual.

The integral RISC microprocessor circuitry of the Model AMT transmitter allows high resolution with advanced self diagnostics for fault conditions. It also enables periodic re-calibration of the moisture sensor, storing calibration data within the fully self contained unit. Loop powered by a 7V to 28V dc source, the Model AMT transmitter will provide a linear 4-20mA signal over the chosen range.

The mechanics of the Model AMT transmitter have been designed to cope with extreme environmental conditions. The rugged stainless steel construction offers protection to IP66 (NEMA4X), with the transmitter electrical connections made via a secure industrial connector.

Model AMT transmitter can withstand 35,000 kPa (350bar) maximum pressure and by employing a low resistance cable, the transmitter can be located at significant distances, in excess of 1000 metres, from the control room.

Designed with the operator in mind for reliable and accurate measurements, the Model AMT transmitter is extremely easy to install and operate, requiring little or no maintenance.

The Model AMT transmitter is supplied with a Certificate of Calibration, an instruction manual and 2m connecting cable.


 

Thông số kỹ thuật

MODEL AMT Dewpoint Transmitter
4-20mA Loop Powered Transmitter

- TRANSMITTER TYPE: 2 Wire, 4-20mA Loop Powered Transmitter
- OUTPUT SIGNAL: 4 to 20mA Linear
- OPERATING VOLTAGE: 7V - 28V dc. Reverse polarity protected.
- MAXIMUM SERIES RESISTANCE: = {40 x (Supply Voltage – 7)} ohms
- SENSING ELEMENT: Ultra High Capacitance - Aluminium Oxide Type
- RANGES: See How to Order Below
- AUTOCAL: Field calibration / Span check facility. Activated and operated via two button switches on the Transmitter body. Locked in normal operating mode to avoid tamper.
- FACTORY CALIBRATION: Supplied with Certificate of Calibration traceable to NPL / NIST
- ACCURACY: Better than ±2°C dewpoint (NPL / NIST traceable for range -90°C to +20°C)
- TEMPERATURE COEFFICIENT: Temperature compensated for operating range.
- REPEATABILITY: Better than ±0.3°C dewpoint
- OPERATING TEMPERATURE: -20°C to +60°C
- STORAGE TEMPERATURE: -20°C to +70°C
- OPERATING PRESSURE: From 1kPa (0.01 barA) to Maximum 35,000kPa ( 350 barA)
- OPERATING HUMIDITY (External): Maximum - 95% RH Non-condensing
- SAMPLE FLOW RATE: Flow independent but ideally 2 to 5 litres per minute. Max: 25 litres/min.
- CABLE TERMINATIONS: IP66 (NEMA4X) rated, size C, DIN EN 175301 connector at the Transmitter and other end terminated with bootlace ferrules.
- CABLE: Supplied with 2m standard cable. Nominal diameter 3.4mm, 92ohms/km at 20°C
- ELECTROMAGNETIC COMPATIBILITY (EMC): Complies to BS EN 61326-1
- WARM UP TIME: 10 seconds
- FAULT CONDITIONS: Open Circuit : Output drives to 20.50mA; Short Circuit : Output drives to 20.75mA
- ISOLATION: Sensing Element connected to the 4-20mA loop but isolated from Transmitter body.
- TRANSMITTER ENCLOSURE: 316 Stainless steel body with size C,
- DIN EN 175301 connector.
- SENSOR PROTECTION: 316 Sintered stainless steel filter - 50 micron
- PROBE MATERIAL (WETTED PARTS): 316 Stainless Steel
- WEATHERPROOF CLASSIFICATION: IP66 / NEMA4X when Connector mated to Transmitter.
- MECHANICAL CONNECTION: 3/4” UNF (16tpi) with integral Viton “O” ring seal.
- MECHANICAL WARRANTY: 24 months in case of faulty workmanship and defective parts.
- CALIBRATION WARRANTY: 12 months.
- ACCESSORIES INCLUDED: Standard 2 meter connecting cable.


 

Hướng dẫn chọn Model sản phẩm

Chọn ngưỡng nhiệt độ đo
Model AMT- [X]
[X]: Ngưỡng đo

SD(F): -100°C to +20°C (-148°F to +68°F) dewpoint (resolution = 0.1°C / °F)
LD(F): -120°C to +20°C (-184°F to +68°F) dewpoint (resolution = 0.1°C / °F)
HD(F): -65°C to +20°C (-85°F to +68°F) dewpoint (resolution = 0.1°C / °F)
SILVER -110°C to -20°C (-166°F to -4°F) dewpoint (resolution = 0.1°C / °F)
RED -80°C to -20°C (-112°F to -4°F) dewpoint (resolution = 0.1°C / °F)
GREY -80°C to 0°C (-112°F to +32°F) dewpoint (resolution = 0.1°C / °F)
BLUE -80°C to +20°C (-112°F to +68°F) dewpoint (resolution = 0.1°C / °F)
PURPLE -100°C to 0°C (-148°F to +32°F) dewpoint (resolution = 0.1°C / °F)

SP: 1 to 1000 ppm(v) - - - - - - resolution = 1ppm
MP: 0.1 to 100.0 ppm(v) - - - resolution = 0.1ppm

LP: 0.01 to 10.00 ppm(v) - resolution = 0.01ppm
PB: 1 to 1000 ppb(v)- - - - - - - - resolution = 1ppb

HG: 0.01 to 10.00 g/m3 - - resolution = 0.01g/m3
LG: 0.001 to 1.000 g/m3-resolution = 0.001g/m3

LB: 0.1 to 100 Ib/MMSCF


Vui lòng chú ý
- Order Example:- Dewpoint Transmitter Model DS1200-AMT-SDC(F) = –1000C to +200C dp
- Model DS1200-AMT COMES COMPLETE WITH A STANDARD 2 METRE CONNECTING CABLE.


Chọn chiều dài Cáp kết nối
CAB069-AMT + [XX]
[XX]: Chiều dài của cáp kết nối

- Your AMT Transmitter comes complete with 2 metres of connecting cable as standard.
- To order a longer length in metres, add number after this part number.
- Example: CAB069-AMT-10 for 10 metres
- Non-Standard off the shelf cables available in 3, 4, 5, 10, 12, 15, 25m lengths. For longer lengths please call.

AMT Standard Cable 2 Meters

Part No. CAB069-AMT


Chọn Màn hình hiển thị
Model DS1200

- Perfect for continuous online measurements
- Fast Response
- 22V – 253V AC or DC operation
- Single channel in-line hygrometer
- Panel protection to IP65 (NEMA4X)
- 2 independent alarms
For more details please see data sheet DS1200.



Chọn Transmitter holder
Comes compete with mounting plate.

SH-AMT + [X] [X]
[X] [X]: Pipe Fittings

[X]: Pipe

X = Choose INLET Pipe Fitting
0 = None 1/8” NPT Port
4 = 1/4” - Pipe OD
8 = 1/8” - Pipe OD
6 = 6mm - Pipe OD

[X]: Fittings

X = Choose OUTLET Pipe Fitting
0 = None 1/8” NPT Port
4 = 1/4” - Pipe OD
8 = 1/8” - Pipe OD
6 = 6mm - Pipe OD

Order Example:- For Transmitter Holder with 2 x 1/4 fittings Order SH-AMT-4-4


 

Kích thước

Model AMT Dewpoint Transmitter
4-20mA Loop Powered Transmitter


Model SH-AMT Transmitter Holder
Flow Through Sample Cell

Note: The Assembly is shown with 1/4@ OD tube fittings. The dimensions across the tube fittings will vary for all other size fittings.


Model DS1200 Display
Stable, Accurate and Reliable Alarmed Monitor


Corrosive Gases: The Sensor should not be exposed to corrosive gases (or corrosive contaminants in the gas sample) as these can chemically attack the sensor, impairing calibration accuracy and/or damaging it beyond economic repair. Examples of such gases are mercury (Hg), ammonia (NH3), chlorine (Cl2) etc. Strong oxidising agents such as ozone (O3) should also be prevented from coming into contact with the sensor.
 

- Xem chi tiết Tài liệu kỹ thuật Datasheet Bộ chuyển đổi tín hiệu điểm sương 4-20mA  350barg -100°C..+20°C ±2°C - Alpha Moisture Systems - Dewpoint Transmitter MT-703984