The Viatran model 570 is a durable high pressure range product meant for use in situations requiring prior approvals for transmitter use. It gives an output of 4-20 mA for ranges of 0-100 through 0-100 000 PSI. It is sealed and thus provides reliable performances even in harsh production environments and even those rated hazardous.
Features
The Viatran model 570 pressure transmitter has many high-rated features making it a product of choice in its class, including:
- An IP-68 rating
- The ShuntCal feature
- Ideal for applications involving high pressures
- RapidShip facility which ensures a two-day turnaround on orders
- Availability of several optional accessories to fit it for different applications
- Construction material is all-stainless steel
The use of welding to bond parts and components together, with the stainless steel material, enable the use of Model 570 in test or industrial applications which expose it to corrosive media or gases. This includes the use of an O-ring free sealing design, boosting its durability in such environments. These units are labeled and approved to FM standards, and comply with NEC/API Dual Seal requirements. Wetted parts made of 316 stainless steel, Inconel or Hastalloy may be ordered in accordance with client requirements and to suit the most harsh applications.
Operating and Other Relevant Parameters
The performance of Model 570 is shown in the following table:
| . |
. |
| Full Scale Pressure Range |
0-100 thru 0-100 K PSIS (0-6.89 thru 0-6894 bar) |
| Linearity (Best Fit Straight Line) |
0-100 PSI (0-6.89 bar) |
±0.5% |
| 150-10 K PSI (10.3-6.89 bar) |
±0.2% |
| 15 K-100 K PSI (1034-6894 bar) |
±0.25% |
| Hysteresis |
≤0.15% FSO |
| Repeatability |
≤0.15% FSO |
| Full Scale Output (FSO) |
16 mA |
| Zero and Span Balance |
±1% FSO |
| Long Term Stability |
≤±0.25% FSO per 6 months |
| Response Time |
<2 mSec to reach 90% FSO |
| Temperature Effect on Zero |
≤±1% FSO per 100 °F (37 °C) |
| Temperature Effect on Span |
≤±1% FSO per 100 °F (37 °C) |
| Compensated Temperature |
70 °F to 170 °F (21 °C to 76 °C) |
| Operating Temperature |
-40 °F to 190 °F (-40 °C to 87 °C) |
| Storage Temperature Limit |
-65 °F to 250 °F (-53 °C to 121 °C) |
The electrical parameters are summarized below:
| . |
. |
| Supply Voltage |
12 to 30 Vdc |
| Power Supply Regulation Effect |
≤±0.02% FSO per Volt |
| Output Signal |
4 - 20 mA |
| Bridge Impedance |
5000 Ohms nominal |
| Circuit Protection |
Varistor protected across the input leads for surges above 40 V and currents to 250 Amps peak with a pulse width of 20 μSecs. Reverse polarity protected. |
| Insulation Resistance |
>200 MegOhms to case ground |
| Electrical Connection |
1/2" NPT (M), 18 AWG wire, 72" |
| Wire Color Codes |
| Red |
+Power/Signal |
| Black |
-Power/Signal |
| Green |
Case ground |
| White |
No Connection |
The mechanical properties of the 570 are displayed in the following table:
| . |
. |
| Pressure Connection |
0-50 thru 0-15 K PSI |
1/4" - 18 NPT Female (0-3.3 thru 0-1034 bar) |
| 0-20 K thru 0-50 K PSI |
1/4" F250-C High Pressure Tube (0-1378 thru 0-3447 bar) |
| 0-60 K thru 0-100 K PSI |
5/16" F312C High Pressure Tube (0-4136) thru 0-6894 bar) |
| Proof Pressure |
0-100 thru 0-15 K PSI |
1.5 times FSPR or 20K PSI (1378 bar), (0-6.8 thru 0-1034 bar) whichever is less |
| 0-20 K thru 0-100 K PSI |
1.2 times FSP (0-1378 thru 0-6894 bar) |
| Burst Pressure |
0-100 thru 0-15 K PSI |
≥ 2.3 to 5 times FSPR dependent on (0-6.8 thru 0-10342 bar) sensor |
| 0-20K thru 0-100 K PSI |
1.5 times FSPR or 125 K PSI (8618 bar) (0-1378 thru 0-6894 bar) whichever is less |
| Mounting |
Supported by process piping or optional mounting bracket |
The 570 is constructed from the following materials:
| . |
. |
| Enclosure |
0-100 thru 0-15 K PSI |
15-5 PH and 316 stainless steel (0-6.8 thru 0-1034 bar) |
| 0-20 K thru 0-100 K PSI |
316 SST and PH 13-8 Mo SST (0-1378 thru 0-6894 bar) |
| Wetted Parts |
0-100 thru 0-15 K PSI |
15-5 PH stainless steel (0-6.8 thru 0-1034 bar) |
| 0-20 K thru 0-100 K PSI PH |
13-8 Mo SST (0-1378 thru 0-6904 bar) |
| Shock Limitation |
100 G’s |
| Weight |
24 oz. (0.680 kilograms) |
| Identification |
Laser etched onto body |
| Enclosure |
Classification NEMA 4X |
Various optional parts and components are available as per customer requirement, and are detailed in the following table:
| . |
. |
| DF |
Bleed port (10 K PSI and below) |
| DG |
Improved temperature compensation (<5%/100 °F for zero/span) |
| DH |
Special range |
| DQ |
Cleaning for oxygen service |
| EA |
Special calibration run |
| JJ |
Direct mount indicator with explosion proof housing |
| JS |
Direct mount indicator |
| ME |
CSA explosion proof label |
| MR |
Modified electrical damping |
| NG |
ATEX flameproof label |
| NH |
Customer specified identification |
| NJ |
CE label |
| NK |
ATEX intrinsic safety label |
| NX |
CSA intrinsic safety label |
| NY |
FM explosion proof label |
| NZ |
FM nonincendive label |
| PW |
1/8 DIN digital indicator (consult factory) |
| QA |
316 stainless steel wetted parts |
| QB |
Inconel (X-750) wetted parts |
| QC |
Hastelloy (C-276) wetted parts |
| TF |
FM intrinsic safety label |
| TW |
GOST certification label |
| Y ( ) |
Alternate pressure ports |
It should be noted that applying some of these options to the 570 may impact standard performance. For more information, please contact the Viatran representative.