Model 591 Detachable Level Transmitter
The Model 591 High Accuracy Detachable Level Transmitter allows for a quick sensor swap without the removal of the installed cable. No special tools are required. Simply pull up the sensor, twist the sensor coupling sleeve till it is no longer engaged and then simply separate the two halves.
591 is constructed of stainless steel housing and sensor module, with a polyurethane cable as standard. Different cable materials and o rings are available.
Use it to measure Liquid Level and Depth for Water and Waste Water applications, at Lift Stations, Reservoirs and Dams, Rivers, Holding Ponds, Wells, In-ground / Above Ground Tanks and with Inventory Tank Gauging.
Viatran also offers a complete range of accessories for use in level applications such as a surge protector, cable hangers and weights, meters and junction boxes.
Replacement sensor heads and/or cables can be purchased separately
PERFORMANCE
| Pressure Ranges | 0 - 40" W.C. up to 0 - 835 Ft W.C. (Or equivalent in Meters or PSI | |
| Accuracy [Combined Non-Linearity (BFSL), Hysteresis & Repeatability] | ≤ +/-0.1% FSO | |
| Compensated Temperature Range | 32° to 158° F (0 to 70° C) | |
| Operating Temperature Range | 4° to 158° F (-20 to 70° C) Note: Medium must not freeze near sensor | |
| Storage Temperature Range | -13° to 158° F (-25 to 70° C) | |
| Long Term Stability (%FSO) | ≤ +/- 0.1% FSO / year At reference conditions | |
| Thermal Effect on Zero | ≤ +/- 0.8% FSO per 100° F | |
| Thermal Effect on Span | ≤ +/- 0.8% FSO per 100° F |
ELECTRICAL
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Output Signal
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4-20 mA
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Supply Voltage
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8 -32 Vdc
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Power Supply Regulation
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< +/- .005% FSO per volt
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| Circuit Protection | Reverse polarity protected, CE marked | |
| RFI / EMI | CE EMC compliant as per IEC EN 61326 | |
| Voltage Spike Protection | Withstand 1000 volt spike per EN 61000 | |
| Response Time | < 200 mSec |
MATERIALS OF CONSTRUCTION
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Housing
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316L stainless steel
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Sensor Diaphragm
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316L stainless steel
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O-ring Seals
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FKM (Standard) or EPDM (Optional)
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| Protective Cap | POM (Polyoxymethylene) |
MECHANICAL
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Pressure Connection
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Protective POM cap
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Ingress Protection
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IP 68
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Overpressure Limit
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x Minimum (> 525 Ft. range = 3.2x)
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| Burst Pressure | 5x Minimum (> 525 Ft. range = 4.8x) | |
| Weight | 0.9 lbs. (without cable) |
OPTIONS
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EA
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Special Calibration Run
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PW
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Calibrate Transmitter with Meter / Display
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ZB
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1/2" NPT Conduit Adapter
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