SLU-CSP Electric Capacity Negative Pressure Transmitter

1.Technical Performance

●       To subject: liquid, gas or vapour

●       Range ability: 

●       Output: 4-20mA DC

●       Power: 24VDC, it may be 12VDC if non-load, max. is 45VDC

●       Positive & negative transfer: up and low may not exceed the range limit after positive & negative transfer, whatever the output is.

Max. positive transfer: 500% of the min. span.

Max. negative transfer: 600% of the min. span.

●       Temperature:

Temperature of operating for amplifier: -25℃ ～ +90℃

Temperature of operating for sensor:  -40℃ ～ +104℃

●       Relative humidity: 0~100%

●       Sensor capacity changes: <0.16cm³

●       Indicate meter (field): scale gauge length: 30mm,

grade: 2.5

●       Isolating explosion: ds Ⅱ BT5,   Intrinsically-safety: ia Ⅱ CT5

●       Span & Zero: external continually adjusted

●       Over-pressure: 0 (absolute pressure) –14Mpa, no damage for transmitter,

the max. pressure is 60Mpa for flange template.

Operating pressure>3.45Kpa (absolute pressure)

●       Damp: continually adjusted when time constant is between 0.2~1.67 seconds.

●       Settling time: 2s,

2. Performance Index (note: test under the condition of none shift, max. range status of sensor, 316Lstainless isolating diaphragm and other standard condition)

●       Accuracy: ±0.25% of the span, including the synthesize errors of linear,     change-difference and repeat.

●       Stability: ±0.25% of max. range (12 months)

●       Temperature affect:

zero error:±0.5% / 55℃,  zero & range errors:±1.0% / 55℃, when max. range;

zero error:±3.0% / 55℃,  zero & range errors:±3.5% / 55℃, when min. range;

●        Over-pressure affect: ±0.25% of max. range (according to permitted over-loads for    different ranges)

●       Vibration affect: ±0.05% / g of the max. range, when 200Hz, any axis up.

●       Power affect: <0.005%/V of output range

●       Load affect: none affect when voltage >12VDC input to the transmitter.

●       Mounting position affect: may cause zero error max. 0.24Kpa, but can be calibrated,  none affect for range

3. Structure IIndex:

●       Structure material: diaphragm: 316 stainless steel, hastelloy C, Monel alloy, Tantalum;

                 O ring: Fluorin rubber;

Flange & bolt: 316 stainless steel;

Fill oil: silicon oil;

Electric shell: low-Cu & aluminum alloy

Plating of electric shell: toast lacquer of amido, formyl, ethene & colophony;

●       Pressure-lead connector:

Flange NPT 1/4 (taper pipe screw thread), (this is the transmitter flange connection);

Connection head screw thread NPT 1/2 (taper pipe screw thread), (selected);

●       Electric parts connector:

Down-lead conduit NPT 1/2 line-through hole;

●       Net weight: 2.4kg (exclude the selected parts)