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| Temperature
Sensors |
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| Profile |
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- We are in the field of manufacturing entire
range of Temperature Sensors, Thermowells, Thermocouple
Grade Extension, & Compensating Cables,
RTD signal cables & accessories since 1989.
- The sales of more than 2,50,000 sensors throughout
India and globally is a testimony of quality
products and services.
- The custom-built sensors is what we like the
most and we can cater to any of your applicational
requirements.
- Our manufacturing bases are well equipped
with necessary testing facilities like Calibrators,
mV source, RTD source, precision multimeters,
insulation / HV testers, constant temperature,
oil bath, high temperature furnace, gauges,
dimension measuring, instruments etc... They
are traceable to N.P.L., Delhi and tested at
E.R.T.L./I.D.E.M.I.
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| Features: |
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- Sensors in any type, size, shape and M.O.C.
Each Sensor is tested and calibrated with E.R.T.L.
/ I.D.E.M.I. certified calibrators.
- Very high accuracies and very small time constants
due to improved manufacturing process like Argon
Welding, Brazing and high quality components.
- Special Sensors like Duplex, Glass Embedded,
skin type, multipoint assembles, Pt46, group
LLC etc... can be supplied.
- Entire Digital Instrumentation range manufactured
by us support these Sensors.
- Thermowells to suit any size and shape of
sensors.
- EX-STOCK DELIVERIES OF STANDARD PRODUCTS.
- SHORT DELIVERIES FOR CUSTOM BUILT SENSORS
& THERMOWELLS.
- Sold more than 2,50,000 sensors till date.
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| TIPS FOR
SELECTION: |
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| 1. Thermocouples
are preferred due to: |
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- Faster response.
- Wide Temperature Range.
- Lower Costs.
- Flexibility in designing.
- Higher Mechanical strengths.
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| 2. RTD's are
preferred due to: |
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- Better accuracies.
- Better stability.
- Repeatability.
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| 3. Smaller
Sheath Diamaters will give faster response. We can
offer sheath dia. as low as 1.5mm. |
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4. Ungrounded
Junctioned Sensors, through electrically isolated
have sluggish response time. Electrical isolation
better than 700 M
at 500 VDC.
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| 5. RTD's with
3 wire configuration compensates lead length resistance
effect on temperature measurements as compared to
2 wire configuration. |
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Limits of Error for Thermocouples
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ThermocoupleType
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Temp. Range ºC
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Standard Whichever is greater
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Special Whichever is greater
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T
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0-350
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± 1 ºC or ±
0.75%
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± 0.5 ºC or ±
0.4%
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J
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0-750
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± 2.2 ºC or ±
0.75%
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± 1.1 ºC or ±
0.4%
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E
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0-900
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± 1.7 ºC or ±0.5%
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± 1 ºC or ±
0.4%
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K
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0-1250
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± 2.2 ºC or ±
0.75%
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±1.1 ºC or ±
0.4%
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R or S
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0-1450
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± 1.5 ºC or ±
0.25%
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± 0.6 ºC or ±
0.1%
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B
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800-1700
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± 0.5%
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| Reference Junction 0
ºC |
As per ANSI MC 96.1 (1982)
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Limits of Error for Platinum
- RTD Elements
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Measuring Temperature ºC
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PERMISSIBLE DEVIATIONS
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CLASS
A
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CLASS
B
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ºC
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ºC
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-200
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±0.24
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±0.55
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±0.56
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±1.3
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-100
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±0.14
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±0.35
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±0.32
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±0.8
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0
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±0.06
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±0.15
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±0.12
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±0.3
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100
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±0.13
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±0.35
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±0.30
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±0.8
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200
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±0.20
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±0.55
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±0.48
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±1.3
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300
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±0.27
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±0.75
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±0.64
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±1.8
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400
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±0.33
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±0.95
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±0.79
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±2.3
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500
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±0.38
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±1.15
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±0.93
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±2.3
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600
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±0.43
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±1.35
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±1.06
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±3.3
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| As
per DIN 43760, BS 1904 |
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