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Digital Pressure Transducers
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Portable Pressure Monitoring System (PPMS)

The PPMS brings the accuracy and reliability of solid state digital electronics into the traditional analogue field of on site jack/ram hydraulic pressure monitoring.

The system consists of a robust waterproof pressure transducer mounted on a 1/4 female quick release coupling. This is connected to the pressure side of the jack or ram.

The transducer outputs are taken via a screened cable. Typically 3m in Iength to a hand held readout giving a digital display of load.

The display has its own battery supply giving an endurance of approximately 20 hours continuous use.

The PPMS is not a dedicated system and can be used with a variety of jacks/rams by simply re-calibrating using the adjustments provided whilst following the instructions included with the unit.

A calibration check facility is provided.

Pressure Ranges 5, 10, 25, 50, 200, 250, 500, 1000bar
(1 bar = 14.504 psi-100kPa)
Pressure Reference Gauge
Bridge Resistance 350R±5%
Resolution PPMS 0.1 gives 100kg increments. Auto ranges @ 200 tonnes to give 1 tonne increments. maximum 1999 tonnes
PPMS 0.01 gives 10 kg increments. Auto ranges @ 20 tonnes to give 100 kg increments. Maximum 199.9 tonnes.
PPMS 0.001 give 1 kg increments. Auto ranges @ 2 tonnes to give 10 kg increments, maximum 19.99 tonnes.
Non linearity and hysteresis ±0.25% (±0.5% for 5 and 10 bar ranges)
Operating temp range Transducer only:20 to 100°C
Temperature Coefficients Less than ± 0.015%/°C (zero); less than + 0.010%/°c (span)
Pressure media Compatible with 17/4 Ph stainless steel
Pressure port ¼ BSP female to BS21. Flat face to suit 'dowty' bonded seal.
Weight 150gms approximately, with a 3 metre cable
Quick release coupling type ¼" female

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