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Pressure Sensor PR-21Y - -1 to 1 bar, 4-20 mA, G1/4"

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SKU:
PR-21Y - -1 to 1 bar
MPN:
222155.0483
Weight:
50.00 Grams
  • Pressure Sensor PR-21Y - -1 to 1 bar, 4-20 mA, G1/4"
  • Pressure Sensor PR-21Y - -1 to 1 bar, 4-20 mA, G1/4"
$128.00
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Description

Keller pressure sensor -1 to 1 bar, G1/4”, mPm electrical connection – PR-21Y

0.5 %FS accuracy, 4 to 20 mA output, 316L stainless steel

 

The case study pressure transmitter of the PR-21Y series has no internal seal and a high insulation voltage of 300 VDC, and is extremely resistant to environmental influences. The sophisticated compensation circuit makes it possible to specify a narrow total error band.

This transmitter is also extremely immune to external voltages between the housing and the electrical connection, which is particularly important when frequency converters are being used.

This pressure transmitter provides:

  • High accuracy
  • Low response time
  • Wide range of operating temperature
  • Silicone oil fitting
  • Extreme ruggedness towards electromagnetic fields

Measuring range

This Keller pressure transmitter is designed to measure process pressure at the range of -1 to 1 bar.

Body

The PR-21Y is made of stainless steel 316L which provides proper resistance and compatibility with a large variety of medias.

Part number, pressure measurement range, output, power supply, CE certification, wiring configuration and exclusive serial number of each sensor are carved on the body of this product.

Electrical connection

The electrical connection of this pressure sensor is mPm-plug (DIN 43650 C), which provides ingress protection of IP65.

Process connection

At the lower part of the sensor, there is a thread pressure port for connection to the process. This port is named process connection. This PR-21Y sensor has G1/4” male mechanical connection.

To ensure high chemical and thermal resistance and better sealing of the connecting part to the process, one Viton sealing washer (O-ring) is used in a G 1/4" mechanical connection. This sealing is compatible with -20…200°C temperature range.

Reference pressure

In this pressure transmitter, vented gauge (Relative) pressure has been considered as reference pressure. So, the process pressure would be measured in reference to the atmospheric pressure behind the stainless steel 316L internal diaphragm. This atmospheric pressure equals to pressure of the surrounding atmosphere.

Output

Output signal of this product is 4 to 20 mA, with 2 wires in need.

Accuracy

Accuracy of this PR-21Y sensor is less than or equal to 0.5% full scale at room temperature. This accuracy includes below specifications:

  • Non-Linearity (best fitted straight line)
  • Non-Repeatability
  • Hysteresis

Temperature

Different permissible temperature conditions are defined for using this product:

  • Medium temperature: -40 … 100°C
  • Storage temperature: -40 … 100°C

Series Information

21Y Series

Standard pressure transmitter

The pressure transmitters of the 21Y series have no internal seal and a high insulation voltage of 300 VDC, and are extremely resistant to environmental influences. The sophisticated compensation circuit makes it possible to specify a narrow total error band. A wide range of pressure connections and electrical connections are available to choose from.

21Y Series main features:

  • Pressure Ranges: 0…2 to 0…1000 bar
  • Accuracy: ±0.5 %FS
  • Total Error Band: ±1.5 %FS @ -10…80 °C
  • Output signals: 4…20 mA, 0…10 V
  • Temperature Range: -40…100°C

About Keller pressure transmitters

As a company that operates on an international scale, Keller produces pressure measuring cells, from start to finish. This company produces 12 main categories of pressure measuring cells:

  • Standard pressure sensors
  • IO-Link and CANopen pressure sensors
  • Front-flush pressure sensors
  • High temperature pressure sensors
  • Differential pressure sensors
  • Automotive pressure sensors
  • Intrinsically safe pressure sensors
  • Flame proof pressure sensors
  • OEM pressure sensors
  • OEM high-pressure sensors
  • Intrinsically safe OEM pressure sensors
  • Analog pressure sensors

Main applications of Keller pressure sensors:

  • Regulate the internal cabin pressure in aircrafts
  • Ensure the smooth switchover from natural gas to petrol in hybrid vehicles
  • Reference sensors in laboratory technology
  • Oil & gas industry
  • Food & beverage industry

Documents

In order to view the Keller standard pressure sensor, PR-21Y datasheet, please Click Here.
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Warranty Information

One Year Warranty
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Additional Information

Pressure Range:
-1 to 1 bar
Signal Output:
4...20 mA
Limitation Signal Outpu:
3,2...22,3 mA
Supply:
8...32 VDC
Load Resistance:
< (U-8 V) / 0,025 A
Limiting Frequency:
2 kHz
Electrical Connection:
Plug: M12 (4-pole), Packard, mPm
Pressure Connection:
G1/4" male
Response Time (Supply ON):
(0…99 %) < 5 ms
Isolation:
> 10 MΩ @ 300 VDC
EMC:
EN 61000-6-2: 2005
Dead Volume Change:
< 0,1 mm
Material in Media Contact:
Stainless Steel AISI 316L (1.4404/1.4435) / Viton® Seal external (-20…200 °C, no internal seals)
Protection Class:
mPm-Plug: IP65 (with corresponding mating plug)
Weight:
≈ 50 g
Endurance:
> 10 million cycles, 0…100 %FS at 25 °C
Oil Filling:
Silicone oill
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