The Viatran Model 511 hammer union pressure transmitter is among the most advanced in this field. It has an output of 4-20 mA, with a 2 inch 1502 fitting. It is approved for use in hazardous locations. It is ideal for such situations because of its unique design features, created to fulfill direct feedback requests from actual operators. Thus it has such advantages as a voltage-powered tool to calibrate the shunt, the ability to detect and track spikes in pressure, using software from HART® Communicators or DevCom2000-Lite. The whole sleek device is housed in an extremely rugged housing which can resist high vibrations and extreme impact amounting to abuse, while still maintaining standard parameters of performance.
Features
The Model 511 Hammer Union Pressure Transducer offers an array of features such as:
- Compliance with RoHS
- Suitability for high pressure situations of use
- The ShuntCal to calibrate the shunt
- An IP-68 approval
- A 1502 fitting for the hammer union
- A housing which offers easy access to the connector and provides 77% more area
- A higher compensated temperature range of operation
- A better sealing method to seal connector pins
- External controls for settings to adjust, identify and capture peak pressures
- A patented housing design which is resistant to high levels of impact and vibration in the workplace
- Prevents the entry of fluid by the design which includes an angled connector (again patented), a base, the presence of drain holes for fluid, and sealing of connector pins
The relevant patent numbers are:
- EU Patent No. 002334250-001
- CN Patent ZL 201330 527540.1
- US Patents D711266 , US 9,607,596 B2
Operating and other relevant parameters
The performance of the Model 511 hammer union pressure transmitter is summarized below:
| . |
. |
| Full Scale Pressure Ranges |
0-5 K, 0-6 K, 0-10 K, 0-15 K, 0-20 K PSIS |
| Combined Accuracy (BFSL) |
(Non-Linearity, Hysteresis & Repeatability)
≤ ± 0.25% FSO |
| Full Scale Output (FSO) |
16.00 mA ±1% FSO @70 °F |
| Zero Balance. |
4 mA ±1% FSO @70 °F |
| Compensated Temperature Range |
-40 °F to 140 °F (4 °C to 60 °C) |
| Operating Temperature Range |
-40 °F to 185 °F (-40 °C to 85 °C) |
| Storage Temperature Range |
-67 °F to 302 °F (-55 °C to 150 °C) |
| Long Term Stability (%FSO) |
≤ ± .25% FSO per 6 months |
| Thermal Effect on Zero |
≤± 1% FSO per 100 °F Typical |
| Thermal Effect on Span |
≤± 1% FSO per 100 °F Typical |
The electrical features are as follows:
| . |
. |
| Output Signal |
4-20 mA @70 °F |
| Supply Voltage |
9-28 Vdc |
| Power Supply Regulation |
<± .01% FSO per volt |
| Load Impedance |
900 ohms @ 28 VDC decreasing linearity to 0 ohms @ 9 VDC |
| Circuit Protection |
Reverse polarity protected |
| RFI / EMI |
<1% FSO output change with 3 V Rms from 150 kHz to 80 MGz
(80% AM modulated at 1 kHz) applied to power supply and signal lines
[IEC 61000-4-6 radio frequency common mode immunity],
1% output change when exposed to a radiated electromagnetic field of 10 V/m from 80 MHz to 1 GHz AM modulated at 1 kHz and 3 V/m
1.4 GHz to 2.7 GHz. [IEC 61000-4-3 Radiated electromagnetic field immunity] |
| Voltage Spike Protection |
Withstand 1000 volt spike per EN 61000-4-5 |
| Insulation Resistance |
< 5 nS |
| Response Time |
< 1 millisecond to reach 90% of FSO |
| Range Calibration Signal |
100% FSO ±10% by exciting pins E&F |
| Calibration Power Supply Voltage |
8.5 -28 VDC |
| Calibration Signal Accuracy |
Readings on calibration certificate are within ±0.2% FSO of actual Cal signal output |
| Bridge Resistance |
10 K ohms, nominal |
| Standard Electrical Connection |
Mates with 6 pin, Hermetic, Box Mount, Shell Size 10, MIL-C-26482 bendix type connector |
| PIN OUTS |
PIN A + Power / Signal
PIN B - Power / Signal
PIN C No Connection
PIN D No Connection
PIN E + Calibration
PIN F - Calibration |
The mechanical properties of the model 511 are shown in the following table:
| . |
. |
| Standard Pressure Port |
Male hammer union 2 inch #1502 |
| Pressure Cavity Volume |
Standard: 0.45 cubic inches
Option "TP" : 0.22 cubic inches |
| Zero Effect from Installation |
0.3% FSO w/200 ft-lbs torque on union #1502 |
| Shock Sensitivity |
1000 g, 0.5 ms half sine wave pulse shall not cause change in calibration |
| Proof Pressure |
1.67X range or 22,500 PSI max |
| Burst Pressure |
3 Times full scale pressure range, limited by union #1502: 22.5 K PSI |
The materials from which the model 511 hammer union pressure transmitter is constructed are tabulated below:
| . |
. |
| Wetted Materials |
NACE compliant Inconel 718 (MR0175/ISO 15156-3:2009(E)) |
| Enclosure Material |
304 Stainless Steel |
| Identification |
Laser marked on body of unit |
| Enclosure Rating |
IP68*, NEMA 6P* |
| Weight |
5.6 lbs. nominal |
* Pending approvals
Several options are available for the client to choose from:
| . |
. |
| DC |
Compensated temperature -40 °F to 140 °F |
| DG |
Improved temperature compensation |
| DH |
Special Range |
| DN |
Improved accuracy |
| EA |
Special Calibration Run |
| EH |
Compensated temperature range 40 °F to 180 °F |
| LW |
Narrow adapter for banding |
| NA |
Carrying handle attached |
| NH |
Customer specific identification |
| NP |
Protective ring cage |
| NQ |
Protective criss-cross cage |
| QJ |
17-4 PH wetted material, heat treated per NACE MR0175-2000 |
| Z() |
Special connectors |
