TESTO, INC.
TESTO, INC. is a world leader in the design, development and manufacture of portable instrumentat……...

The Viatran model 590 is a detachable level transmitter which has the advantage of enabling the sensors to be swapped out fast without the need to take out the cable which has already been installed. Other than the standard polyurethane cable, FEP and PVC cable options are available. These transmitters have a capability of 0-40” through 835’ W.C. with a stainless steel construction for the sensor, and polyurethane housing.
Both the 590 and 591 models are rated to the deepest level of 835 feet. The sensor head and cable may be ordered together or separately, along with any of a wide array of compatible accessories for level sensing, many of them being already in stock.
Features of Model 590
The model 590 transmitter has the following features which make it suited for use in a number of level sensing applications.
It is detachable
It has a completely stainless steel body
It is IP-68 compliant
It conforms to RoHS standards
It is ideal for measuring level at low pressures
The major benefit of the detachable 590 is the speed with which the sensor can be changed out, since the cable is left in situ and therefore requires no tools other than those which are used to retrieve the sensor and untwist the sensor coupling sleeve to disengage it, finally separating the two parts.
The model 590 has an all-stainless steel housing as well as sensor body, with cables made of polyurethane as standard, but with other materials being used for the cables and O-rings as available options.
Uses
The Viatran model 590 is well suited to measure fluid levels and liquid depths, for various applications including waste water systems, lift stations, holding ponds, reservoirs, rivers and dams, tanks (above-ground or in-ground), as well as tank gauging for inventory purposes.
It has the capacity to measure pressures from 0-40" W.C. through 15' W.C. with an accuracy of +/- 0.50% FSO, while for ranges over 15 feet W.C. the combined accuracy is +/- 0.35% FSO.
Viatran level transmitters also come with a wide range of optional fittings to suit all types of applications, including surge protectors, meters and cable hangers, junction boxes and cable weights. Both a replacement sensor head and the cables are available for separate purchase.
Relevant Parameters
Performance-wise, the model 590 detachable transmitter is summarized as seen below:
| . | . | |
|---|---|---|
| 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] | For ranges ≥ 15 Ft. W.C. | ≤ +/-0.35% FSO |
| For ranges < 15 Ft. W.C. | ≤ +/- 0.50% 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 parameters are summed up in the following table:
| . | . |
|---|---|
| Output Signal | 4-20 mA |
| Supply Voltage | 8 -32 Vdc |
| Power Supply Regulation | < +/- 0.005% FSO per volt |
| 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 | <10 mSec |
Mechanical properties are given in the table below:
| . | . |
|---|---|
| Pressure Connection | Protective POM cap |
| Ingress Protection | IP 68 |
| Overpressure Limit | 4x Minimum (>525 Ft. range = 3.2x) |
| Burst Pressure | 5x Minimum (> 525 Ft. range = 4.8x) |
| Weight | 0.9 lbs. (without cable) |
Construction materials used in model 590 are as follows:
| . | . |
|---|---|
| Housing | 316L stainless steel |
| Sensor Diaphragm | 316L stainless steel |
| O-ring Seals | FKM (Standard) or EPDM (Optional) |
| Protective Cap | POM (Polyoxymethylene) |
Other available options include:
| . | . |
|---|---|
| EA | Special Calibration Run |
| PW | Calibrate Transmitter with Meter / Display |
| ZB | 1/2" NPT Conduit Adapter |
TESTO, INC. is a world leader in the design, development and manufacture of portable instrumentat……...
The latest quartz MEMS technology is applied to this versatile Vertical Gyro IMU, featuring full ……...
RACO Manufacturing and Engineering Co., Inc. has provided municipalities, industry, and governmen……...
3 bar MAP (Manifold Absolute Pressure) sensor, allowing boost levels above 1,54 bar with full con……...
A world leader in water treatment solutions, IDE specializes in the development, engineering, con……...
SolarCraft has been providing trustworthy and reliable solar energy services in the North Bay for……...
MROcrib is dedicated for customers of Industrial & Electric Supply Co. The products offered are primarily used for the repair and maintenance of production related equipment including products ……
Eidesvik Offshore ASA owns and operates a worldwide fleet of purpose-built vessels, providing ship services for offshore supply and transport of pipes, oil recovery and stand-by, maintenance and in……
Trojan Technologies enables customers to meet their water quality objectives by providing eco-efficient solutions that reduce and recover costs, energy, resources and space. Collaboratively solving……