| Name |
Description |
| Ranges and Limits |
See "DTN2070 Ranges and Limits" documentation located under the Documents tab. |
| Performance Specification Criteria |
Performance Specification Characteristics |
| -Reference Accuracy |
±0.25% of span (Typical < 0.15% includes Linearity + Hysteresis + Deadband & Settability + Repeatability) |
| -Stability/Drift |
±0.25% of URL per 30 months at reference conditions |
| -Zero Overpressure Effects (per 1000 psi [6.89 Mpa]) |
±0.25% URL one-sided, ±1% URL two-sided sequential |
| -Field Adjustability (Zero & Span) for Harsh Environment Models |
±15% of span, within the transmitter URL |
| -Field Adjustability (Zero & Span) for Non-Safety, Mild and Non-Submergence Models |
Zero: ±70% of URL, Span: ±33% to ±100% of URL |
| -Direct or Reverse Acting Capabilities |
Direct or Reverse acting is factory set and cannot be changed in the field |
| -Zero Elevation, Zero Suppression Factory set |
Zero elevation and suppression must be such that neither the calibrated span nor the upper or lower range value exceeds 100% of the URL |
| -Range-down |
3.5 to 1 (minimum span is 28.6% URL) |
| -Operating Temperature |
40°F to 257°F (4.4°C to 125°C) normal services. Operating temperatures will affect qualified life. |
| -Storage Temperature |
-40°F to 257°F (-40°C to 125°C). Storage temperatures above 120°F will affect qualified life. |
| -Output Signal |
4-20 mA two wire only |
| -Response Time (All range Codes) |
≤0.2 sec; Sensor response time to 50% with a 100% span step change at 100°F [37.8°C] |
| -Damping |
Factory set, 0 or 1.6 seconds |
| -Power Supply Effect |
0.005% of calibration span/volt |
| -Min Current Limit |
3.4 +/- .1 mA |
| -Max Current Limit |
21.6 +/- .2 mA |
| -Power Supply Load Limitations |
18 VDC to 48 VDC (Mild); 18 VDC to 33 VDC (Harsh); R (Ω) = Maximum field loop Resistance = 45.5 * (Power Supply Voltage - 18) |
| -Load Effect |
Within limits set by the line voltage, the output current is independent of load resistance |
| -Mounting Position Effect |
No span effect; zero shift of up to 1.5 inH2O (0.249 kPa) which can be calibrated out. |
| -EMC/EMI Compliance |
Satisfies requirements defined in: US NRC Reg. Guide 1.180 Rev. 1. European EMC Directive 2014/30/EU by conforming to applicable EN and IEC Standards: Compliance testing to the EN 61000 Series standards, CE Marking, declaration of conformity. |
| -Transient Protection |
Transient Protection Meets Criteria A of IEC 61000‐4‐4:1995 (Electrical fast transient/burst immunity test; Power and I/O Line Burst: 2kV, 15/300 ms, 5kHz) |
| -PED, CE mark |
DTN2070 is fully compliant |
| -Temperature Effects (per 50°F [27.8°C]) |
Note (a): Above 130°F (54.4°C), determine the error from 130°F to the temperature of interest then add the 130°F error. |
| - - Harsh Environments 40°F to 130°F (4.4°C to 54.4°C) |
±0.8% URL + 0.3 % Span |
| - - Harsh Environments 130°F to 257°F*, (54.4°C to 125°C) |
±0.52% URL + .25% Span; Note (a) |
| - - Mild, Rad Harsh and Submergence 40°F to 130°F (4.4°C to 54.4°C) |
± 0.50% URL |
| Power Supply Requirements |
18 VDC to 48 VDC (See the "DTN2070 Power Supply Load Limits" under the Documents tab for load resistance requirements.) |
| Functional Specification Criteria |
Model DTN2070 Functional Characteristics |
| -Volumetric Displacement |
Negligible |
| -Enclosure Rating |
NEMA 6P (IP 68) |
| -Humidity Limits |
0-100% R.H., Submergence |
| -Turn-On Time |
2 seconds or less, .1 minute for rated accuracy |
| Physical Specification Criteria |
Model DTN2070Physical Characteristics |
| -Isolating Diaphragms |
All Range codes: Stainless 15-5 PH |
| -Drain Vent Valve |
None |
| -Process Flange |
316 SST |
| -Process Seal |
EPDM |
| -Electronics Housing O-ring |
EPDM |
| -Fill Fluid |
None (Vacuum) |
| -Sensor Module Housing |
316 SST |
| -Electronics Housing |
316 SST |
| -Mounting Bracket |
304 SST |
| -Mounting Bolts |
304 SST |
| -Process Connections |
1/4-18 NPT Optional: welded fittings |
| -Electrical Connections |
Gen 3 QDC Quick Disconnect Connector; Seal Gland with 8 ft. leads |
| -Weight |
9.2 lbs. (4.17 kg) including integral mounting bracket. |
| -Traceability |
Per 10CFR50 Appendix B, 10CFR21, NQA-1, and ISO 9001:2008; chemical and physical certification of pressure retaining parts. |
| Nuclear Qualification Test |
DTN2070 Nuclear Qualification Specification |
| -Service Life |
23.4 years at 100° F (37.8°C) (See the "Qualified Service Live vs. Temperature" under the Documents tab for details.) |
| Seismic Accuracy- |
Specifications listed reflect Maximum error during seismic disturbance. All Ranges: Accuracy within ±0.5% URL for OBE at 1/2 SSE Accuracy within ±0.7% URL for SSE Transmitters will return to within ±0.20% after the event. (See the "Seismic - Test Response Spectra, 5% Damping" under the Documents tab for details.) |
| -During LOCA |
+ 4.0 % of URL for DPs +3.7 % of URL for PA/PGs First 15 days & Submergence, (Excludes Radiation) (See "Actual LOCA/PAMS Chamber Temperature" under the Documents tab for details.) |
| During PAMS (Post-Accident Monitoring)- |
+ 2.7% of URL 43 days (See "Actual LOCA/PAMS Chamber Temperature" under the Documents tab for details.) |
| -Environmental/Seismic Qualification |
Qualified to IEEE 323-1974 and 323-1983 Seismic: IEEE 344-75 & IEEE 344-87 |
