| Name |
Description |
| Ranges and Limits |
See "DTN2070 Ranges and Limits" documentation located under the Documents tab. |
| Performance Specification Criteria |
Model DTN2070 Performance Characteristics |
| -Reference Accuracy |
±0.25% of span (Typical < 0.15% includes Linearity + Hysteresis + Deadband & Settability + Repeatability) |
| -Stability/Drift |
±0.2% of URL per 30 months at reference conditions |
| -Static Pressure Zero Effect |
±0.25% URL for 1,000 psi static pressure change. This effect is systematic and can be calibrated out for a particular pressure before installation |
| -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 |
| -Operating Temperature |
40°F to 257°F (4.4°C to 125°C) normal services. Operating temperatures will affect qualified life. |
| -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 |
| -Turn-On Time |
2 seconds or less, .1 minute for rated accuracy |
| -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, Range Code 200, 300 |
≤0.7 sec (Sensor response time to 50% with a 100% span step change at 100°F [37.8°C] |
| -Response Time, Range Code 400, 600 and 800 |
≤0.4 sec (Sensor response time to 50% with a 100% span step change at 100°F [37.8°C] |
| -Response Time, Range Code 850 |
≤0.25 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 from 40°F to 130°F (4.4°C to 54.4°C) |
Range Codes 200, 300, 400: ±0.6% URL + 0.4% Span; Range Codes 600, 800: ±0.35% URL + 1.0% Span; Range Code 850: ±0.6% URL + 1.2% Span |
| - -Harsh Environments from 130°F to 257°F, (54.4°C to 125°C) |
Range Codes 200-800: ±0.7% URL; Range Code 850: ±1.35% URL; Note (a) |
| - - Mild, Rad Harsh and Submergence Environments from 40°F to 130°F [4.4°C to 54.4°C] |
Range Codes 200-850: • ± 0.50% URL; Note (a) |
| 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 |
| -Range-down |
3.5 to 1 (minimum span is 28.6% URL) |
| -Volumetric Displacement |
< 0.005 in3 (0.082 cm3) |
| -Enclosure Rating |
NEMA 6P (IP 68) |
| -Humidity Limits |
0-100% R.H., Submergence |
| Physical Specification Criteria |
Model DTN2070 Physical Characteristics |
| -Isolating Diaphragms |
Range 200, 300, 400, 850, and 100: Hastelloy™ Alloy-C; Range 600 and 800: Stainless 17-7 PH; |
| -Drain Vent Valve |
316 SST |
| -Process Flange |
316 SST |
| -Process Seal |
EPDM |
| -Electronics Housing O-ring |
EPDM |
| -Fill Fluid |
Silicone Oil - DC550 Standard |
| -Sensor Module Housing |
316 SST |
| -Flange Bolt |
Medium Carbon Alloy Steel, SAE J429, Grade 8, Zinc Yellow-Chromate Plated Finish Per ASTM B633 |
| -Electronics Housing |
316 SST |
| -Mounting Bracket |
304 SST |
| -Mounting Bolts |
300 Series Stainless Steel, ASTM F593 |
| Process Connections |
1/4-18 NPT Optional: welded fittings |
| -Electrical Connections |
Gen 3 QDC Quick Disconnect Connector; Seal Gland with 8 ft. leads |
| -Weight |
16.9 lbs. (7.66 kg) with mounting bracket, bolts and SST tag 14.9 lbs. (6.78 kg) transmitter only 2 lbs. (0.9 kg) 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 |
Model 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 |
