Precision

Model PS11BW

Linear

Programmable Temperature Sensor

Systems, Inc

and 4-20mA Transmitter Flex Assembly

PROGRAMMABLE TEMPERATURE SENSOR & 4-10mA TRANSMITTER ASSEMBLY

FEATURES:

• Very Low Cost Programmable Temperature Sensor & 4-20mA Transmitter

• High Accuracy:  ±0.5ºC over -50°C to +150°C Temperature Range

• Field Programmable Sensor Temperature Range: - 50°C to +150°C

• Fast, Easy & More Reliable PUSH-IN Terminal Block - Industry First!

• Matched Sensor & Transmitter Connected on Flex Assembly

• Transmitter Temperature Range:  -25°C to +70°C

• Loop Voltage Range:  ±10 to  ±30 VDC

• Loop Terminals are NON-POLARIZED - Cannot be Misconnected!

• Flex Assembly fits either MC03 Minicase or DB03 DIN Form B Case

• 4-20mA Loop Powered

• Made in the US

DESCRIPTION:

The PLS PS11BW temperature sensor & transmitter flex assembly brings a new concept in 4-20 mA temperature measurement systems to temperature probe manufacturers. A rugged solid state temperature sensor and a programmable 4-20mA transmitter are manufactured on the same flexible circuit substrate and connected together by flex that is about 11 inches long. The flex sensor can be used in free air or inserted and sealed into a probe. The 4-20mA transmitter fits into a PLS PLS MC03 Minicase as shown in the MC03 datasheet or DB03 DIN B Case as shown in the DB03 datasheet. A reliable, quick-connect push-in terminal block is used for the 4-20mA current loop connections. This terminal block can be used with either solid or stranded wires. The current loop connections are not polarized so the wires can be connected either way to the terminal block. The sensor temperature range of the PS11BW can be programmed by the user in the field using a PC with the PLS PROG1 programmer interface. The flex assemblies are shipped with the sensor range set to -50°C to +150°C.

Low cost manufacturing of the assembly is achieved by using fully automated surface mounted sensor and transmitter components. Manufacturing cost is further reduced by making and testing multiple assemblies together on one flex panel, and by interleaving two flex assemblies, “L” and “S”, to minimize the width of the panel. Due to the interleaving, the “L” assembly is about an inch longer overall than the “S” assembly, but both are intended to be used interchangeably.

Because the sensor and programmable transmitter are made on the same flex substrate, they are a “matched set” which significantly improves the temperature measurement accuracy. Both the sensor and the programmable transmitter are calibrated over their full operating temperature ranges at test, which provides full system accuracy that is significantly better than the IEC 751 Class A accuracy. These PLS design, manufacturing and test innovations result in both Very Low Cost and Very High Accuracy, providing probe manufacturers with new solutions for temperature sensors with 4-20mA transmitters.

"S"  "L"

SPECIFICATIONS

Sensor Temperature: PS11BW

Operating: -50ºC to +150ºC (-58 ºF to + 300ºF)

Tested: -40ºC to +140ºC (-40 ºF to + 284ºF)

Storage: -65ºC to +150ºC (-85 ºF to + 300ºF)

Transmitter Temperature:

Operating: -25ºC to +70ºC (-13 ºF to + 158ºF)

Storage: -50ºC to +150ºC (-58 ºF to + 300ºF)

Output Current:

4 to 20 mA over specified range.

3 mA minimum, 26 mA maximum.

Accuracy:

±0.5 ºC (±0.9 ºF) over the -40ºC to +150ºC (-40 ºF to + 300ºF) temperature range

Includes sensor non-linearity, self heating and thermal hysterisis effects.

Includes transmitter warmup, supply voltage effect and thermal hysterisis effects.

Supply Voltage:

±10VDC to ±30VDC.

Supply voltage effect <0.001% of span per volt (included in system accuracy)

Transmitter Span:

Minimum: 10ºC (45ºF)

Maximum: 200ºC (360ºF)

Sensor Self Heating and Warm Up:

Sensor power is <75uW.

Testing is done after the system has powered up and stabilized in a temperature controlled bath so nominal self heating and warm up effects for the sensor installed in a tube (with Al2O3 or MgO dielectric) in a bath are included in the calibration.

Temperature rise <0.05 ºC for sensor installed in tube in still air.

Temperature rise <0.06ºC for the flex sensor in still air.

Sensor Fail Output:

Sensor open = Max Output Current

Sensor shorted = Min Output Current

Connections:

2 Wire, Push-In Terminal Block, AWG 22-26 solid or stranded

Physical:

Length overall: “L” assembly: 15.8”, “S” assembly: 14.7” (interchangeable)

Width: Transmitter Boards: 0.235”, Sensor & connecting flex: 0.15”

Connecting Flex Length (from Sensor to Transmitter): “L” assembly: 12.3”, “S” assembly: 11”

Sensor and Transmitter have a protective coating for moisture and corrosion resistance.

Do not bend the flex connecting section tighter than 1/10” radius. Flex outside the sensor tube should be protected from abrasion, wear or bending. Excess flex can be placed inside the DIN B case.

PRICING:

Programmable 4-20mA transmitter & sensor with 11” stem length flex assembly:

Part Number          Description                                  Quan:    1             10      100      1K      10K

PS11BW                Sensor/Transmitter Assembly                 $43.50     $35    $29     $24      $22