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Monocrystalline silicon differential pressure transmitter is used to measure the level, density and flow rate of liquid, gas or steam, and then transform it into 4-20mADC HART current signal output.
Monocrystalline silicon differential pressure transmitter features
1, the center sensing unit using high-precision silicon technology, platinum-level accuracy
2, proprietary double overload protection diaphragm design, unidirectional overpressure up to 40MPa
3, monocrystalline silicon differential pressure transmitter excellent static pressure performance, far from the same occasion capacitive products can be comparable to the static pressure error can be controlled within ± 0.05% / 10MPa
4, monocrystalline silicon differential pressure transmitter range ratio adjustment of up to 100:1
5, monocrystalline silicon differential pressure transmitter electromagnetic compatibility (EMC) in line with GB/T 18268.1-2008
6, very high stability, reliability and very low temperature drift, transmitter zero, precision and repeatability for many years, long-term operation maintenance-free
7, three alarm current output mode user-selectable
8, differential pressure transmitter linear output and square root output can be freely programmed configuration, bus standard 4-20mA / HART output
Monocrystalline silicon differential pressure transmitter performance specifications
Reference accuracy of adjusting range (including linearity, return difference and repeatability from zero point)
①±0.05% accuracy; if TD＞10 (TD=maximum range÷adjustment range), it is: ±(0.005×TD)%.
② ± 0.075% accuracy; if TD>10 (TD = maximum range ÷ adjustment range), then: ± (0.0075 × TD)%
③ ±0.1% accuracy; if TD＞10 (TD=maximum range÷adjustment range), then: ±(0.01×TD)%.
④Square root output accuracy is 1.5 times of the above linear accuracy.
①Total influence at -20 to +65℃:
: ±(0.075×TD+0.025)%×Span; ±0.04%×Span between every 10°C (at TD=1)
: ±(0.15×TD+0.05)%×Span; ±0.08%×Span between every 10℃ (when TD=1)
②Total impact at -40 to -20°C:
: ±(0.2×TD+0.05)%×Span
◆ Static pressure influence: YR-ER101-A series: ±(0.025%URL+0.05%Span)/10MPa; YR-ER101-B/C series: ±(0.05%URL+0.075%Span)/10MPa
◆ Overpressure effect: YR-ER101-A series: ±0.05%×Span/10MPa; ±0.1%×Span/10MPa
◆ Stability: ±0.1%×Span/3 years
◆ Power supply impact: ±0.001%/10V (12-42VDC), negligible
◆ Monocrystalline silicon differential pressure transmitter range and scope
◆
Range Limit: Within the upper and lower limits of the range, it can be adjusted arbitrarily. It is recommended to select the range code with the lowest possible range ratio to optimize the performance characteristics
◆ Zero point setting: the zero point and range can be adjusted to any value within the measurement range in the table above, as long as: calibration range ≥ minimum range.
◆ Installation position impact: monocrystalline silicon differential pressure transmitter diaphragm surface parallel direction of the installation position change will not cause zero drift impact, if the installation position and the diaphragm surface more than 90 ° change will occur ＜0.4kPa range of zero impact, can be corrected by adjusting the zero. No range effect
◆ Output: 2-wire, 4-20mADC HART output, digital communication, selectable linear or square root output, HART protocol loaded on the 4-20mADC signal output signal limit for Imin = 3.9mA, Imax = 20.5mA
◆ Alarm current
①Low alarm mode (minimum): 3.7mA
②High alarm mode (maximum): 21mA
③No alarm mode (hold): keep the effective current value before fault.
④Alarm current standard setting: High alarm mode
◆ Response time: amplifier component damping constant is 0.1s; sensor time constant is 0.1-1.6s, depending on range and range ratio. Additional adjustable time constant is 0.1-60s, the effect on non-linear output (e.g. square root) depends on the function and can be calculated accordingly
◆ Warm-up time: <15s
◆ Ambient temperature: -40～+85℃; with liquid crystal display, fluorine rubber sealing ring -40～+65℃
◆ Storage/transportation temperature: -50～+85℃; with LCD display -40～+85℃.
◆ Working Pressure (Silicone Oil): Rated working pressure is divided into 16MPa, 25MPa and 40MPa three gears.
◆ Static pressure limit: from 3.5kPa absolute pressure to the rated pressure, the protection pressure can be greater than 1.5 times the rated pressure, added to both sides of the monocrystalline silicon differential pressure transmitter at the same time.
◆ One-way overload limit: one-way overload up to the rated pressure
◆ Explosion-proof performance: NEPSI explosion-proof license: Exd Ⅱ CT6; NEPSI intrinsically safe license: Exia Ⅱ CT4; allow the use of the temperature -40 ~ +65 ° C
◆ Electromagnetic compatibility (EMC)
Monocrystalline silicon differential pressure transmitter installation
◆
Power supply and load conditions:
① power supply voltage is DC24V, R≤(Us-12)/Imax kΩ, where Imax=23mA
② Maximum supply voltage: 42VDC
③ Minimum supply voltage: 12VDC, 15VDC (backlit LCD)
③Digital communication load range: 250-600Ω
◆ Electrical connection: M20 × 1.5 cable sealing buckle, terminals for 0.5-2.5mm2 wire
◆ Process connection: process connection flange with NPT1/4 and UNF7/16 “internal thread on both sides of the face
◆
Material: measuring diaphragm box: stainless steel 316L; diaphragm: stainless steel 316L, Hastelloy C, stainless steel 316L gold-plated, stainless steel 316L sprayed FEP, tantalum
Process flange: stainless steel 316
◆ Nuts and bolts: stainless steel (A4)
◆ Process connection: stainless steel 316
◆ Filling fluid: silicone oil, fluorine oil
◆ Seals: NBR, FKM, PTFE.
◆ Differential pressure transmitter shell: aluminum alloy, exterior spray epoxy resin
◆ Shell sealing ring: butyl rubber (NBR)
◆ Nameplate: stainless steel 304
◆ Differential pressure transmitter weight: 3.3kg (no LCD, mounting bracket, process connection)
◆ Shell protection grade: IP67
Monocrystalline silicon single crystal silicon differential pressure transmitters
Monocrystalline silicon differential pressure transmitter external dimensions
Monocrystalline silicon differential pressure transmitter horizontal piping connection form (side) Monocrystalline silicon differential pressure transmitter horizontal piping connection form (front)
Monocrystalline silicon differential pressure transmitter wall connection form Monocrystalline silicon differential pressure transmitter vertical piping connection form
Electrical wiring diagram of monocrystalline silicon differential pressure transmitter
Monocrystalline Silicon Differential Pressure Transmitter Process Connections
Monocrystalline Silicon Differential Pressure Transmitter Process Connection Description
Monocrystalline Silicon Differential Pressure Transmitter Model and Specification Code List
Monocrystalline silicon differential pressure transmitter selection
①accurate
A ± 0.05% precision monocrystalline silicon differential pressure transmitter
B ±0.075% accuracy (this is the largest sales, cost-effective transmitter, and other domestic manufacturers of differential pressure transmitter price is comparable to the stability of the whole higher grade)
C ± 0.01% accuracy monocrystalline silicon differential pressure transmitter
②Monocrystalline silicon differential pressure transmitter range codeB 0-200Pa～6kPa(0-20～600mmH2O)/(0-2～60mbar) Note: This option is not available for range selection code A.
C 0-400Pa～40kPa(0-40～4000mmH2O)/(0-20～400mbar)
D 0-2.5kPa～250kPa(0-0.25～25mH2O)/(0-25～2500mbar)
E 0-20kPa～2MPa(0-2～200mH2O)/(0-0.2～20bar)
③Static pressure sensors
0
1 40MPa(This parameter is determined by the maximum working pressure of the measuring medium.)
2 10MPa(This parameter is determined by the maximum working pressure of the measuring medium.)
④Diaphragm material Filling solution
A
Stainless Steel 316L Fluorine Oil
B Stainless Steel 316L Fluorine Oil
C Hastelloy C Fluorine Oil
D Hastelloy C Fluorine Oil
E Stainless Steel 316L Gold Plated Fluorine Oil
F Stainless Steel 316L Gold Plated Fluorine Oil
G Stainless Steel 316L FEP Coated Silicone Oil
T Tantalum Fluorocarbon Fluorocarbon Oil
⑤Rated working pressure1 16MPa
2 25MPa
3 40MPa
⑥Monocrystalline Silicon Differential Pressure Transmitter Process Connections Drain Valve
N 1/4-inch NPT and 7/16-inch UNF threaded holes No relief valve
B 1/4-inch NPT and 7/16-inch UNF threaded hole Drain valve on rear face of flange
U 1/4-inch NPT and 7/16-inch UNF threaded holes Drain valve on top flange side face
D 1/4 in. NPT and 7/16 in. UNF threaded hole Drain valve mounted on lower flange side
L Liquid level (negative chamber option B/U/D) (not applicable to range A)R Remote transmission (not applicable to range A)
⑦Seal Material
N NBR (Nitrile Rubber)
F Fluorine rubber (FKM)
P Polytetrafluoroethylene (PTFE)
⑧special function
N None (standard configuration)
F square root output
O Oil-prohibited treatment (oxygen measurement limited to fluorine oil filling solution, fluorine rubber seals, <6MPa, <60℃)
P lightning protection
⑨Mounting Bracket
N 无
1 stainless steels
2 Galvanized carbon steel (standard)
⑩Process connection accessories
N 无
1 1/2 inch NPT female stainless steel oval flange
2 M20×1.5 male stainless steel thong connector
⑫Explosion-proof options
N basic type
A Intrinsically Safe Monocrystalline Silicon Differential Pressure Transmitter
D Flameproof monocrystalline silicon differential pressure transmitter
⑬差Pressure Transmitter Field Installation Bit Number Placard
N not have
1 The bit number is located in the nameplate
2 Hanging Stainless Steel Bit Number Placard
