The Series 340 is a small bore submersible hydrostatic level transducer that combines Pressure Systems’ excellent sensor competencies with the latest in Application Specific Integrated Circuit (ASIC) technology. Pressure Systems’ implementation of the ASIC provides unmatched sensor compensation over the entire operating range of the pressure sensor.
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Series 340 Features
- Custom Level Ranges up to 230 ft (70 m) H2O
- Unparalleled Performance
- Total Error Band: ±0.25% FS
- Analog Outputs of 4-20 mA or 0-5 VDC
- Welded 316 SS or Titanium Construction
- Small Diameter, Rugged, and Waterproof
- Custom Cable Lengths
Series 340 Applications
- Ground Water Monitoring
- Surface Water Monitoring
- Down Hole
- Tailrace and Forebay Monitoring
- Dewatering
- Level Control
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The Total Error Band specification (±0.25% FS) over the complete operating temperature range (-20 to 60ºC) eliminates the user having to combine multiple performance specifications to understand the total accuracy of the transducer.
All KPSI Transducers utilize a highly accurate pressure sensor assembly specifically designed for hostile fluids and gases. The assembly is integrated with supporting electronics in a durable waterproof housing constructed of 316 stainless steel or titanium. The attached electrical cable is custom manufactured to Pressure Systems’ specifications and includes Kevlar® members to prevent errors due to cable elongation, and a unique water block feature that self-seals in the event of accidental cuts to the cable. Each transducer is shipped with our latest SuperDry™ Vent Filter that prevents moisture from entering the vent tube for at least one year without maintenance, even in the most humid environments.
The Series 340 is CE compliant to EN 61000-6-4:2001 and EN 61000-6-2:2001 and have a IP 68 and NEMA 6P housing protection rating. All KPSI Transducer calibrations are traceable to the National Institute of Standards and Technology (NIST).
Dated 04/09
| Parameter |
342 |
Units |
Comments |
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LEVEL RANGES
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| Full Scale Level Ranges (1) |
10 thru 230
(3 thru 70) |
ft H2O
(m H2O)
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for vented gage reference |
35 thru 230
(10 thru 70) |
ft H2O
(m H2O) |
for sealed gage or absolute reference |
| Proof Pressure |
1.5 |
x FS |
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| Burst Pressure |
2.0 |
x FS |
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STATIC PERFORMANCE
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| Total Error Band (2, 3) |
±0.25 |
%FS TEB
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Total Error from BFSL |
| Resolution |
Infinitesimal |
%FS
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ENVIRONMENTAL
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| Wetted Materials |
316 SS or Titanium;
polyurethane or Viton® |
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Viton® is a registered trademark of DuPont. |
| Compensated Temp Range |
-20 to 60
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ºC |
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| Operating Temp Range |
-20 to 60
0 to 50
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ºC
ºC
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when using polyurethane cable
when using ETFE cable (4)
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| Protection Rating |
IP 68, NEMA 6P
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ELECTRICAL
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| Excitation |
9-30
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VDC
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for mA and VDC output |
| Input Current |
20
3.5
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mA max
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for mA output
for VDC output |
| Output |
4 - 20
0 - 5
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mA
VDC
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| Zero Offset |
±0.12
< 0.1
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mA
VDC
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for mA output
for VDC output |
| Output Impedence |
See Loop Resistance diagram page 5
510
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ohm
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for mA output
for VDC output |
| Insulation Resistance |
100
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mega ohm
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at 50 VDC |
| Circuit Protection |
Polarity, surge/shorted output
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PHYSICAL
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| Approximate Weight |
0.50 (224)
0.05 (79) |
lbs (g)
lbs/ft (g/m)
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transducer
cable |
Cable
Jacket Material
Pull Strength
Number of Conductors
Conductor Size |
Polyurethane (std)
ETFE (4) (opt)
200 (90)
4
22 |
lbs (kg)
AWG |
Tefzel®, Teflon® and Kevlar® are registered trademarks of DuPont. |
| Cable Seal |
Molded polyurethane
Viton® Gland |
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for polyurethane cable
for ETFE cable |
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LIGHTNING PROTECTION (OPTIONAL) (6)
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| Life Expectancy |
>1000 operations
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| Peak Clamping Voltage |
36 volts |
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| Response Time |
< 10 nsecs |
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- Intermediate level ranges are available.
- Total Error Band (TEB) includes the combined errors due to nonlinearity, hysteresis, nonrepeatability, and thermal effects over the compensated temperature range per ISA S51.1.
- TEB is based on averaging multiple readings.
- -20ºC to 50ºC for level ranges <= 100 ft (70m) H2O when using ETFE cable.
- ETFE is a fluoropolymer (Teflon® derivative) material, Tefzel® or equivalent.
- The power supply needs to be limited to 150 mA to avoid lock up of the gas tube after a suppression event.
Specifications subject to change without notice.