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| The pressure transmitter Focp is suitable to measure liquid, gas, or steam flow as well as liquid level, density and pressure. Focp outputs a 4 to 20 mA DC signal corresponding to the measured pressure. The key features include quick response, remote set-up using communications, self-diagnostics and optional status output for pressure high/low alarm. |
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Focp Gauge/Absolute Pressure Transmitter
The gauge/absolute pressure transmitter includes two functional units: |
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—Main unit
—Auxiliary Unit The main unit includes gauge/absolute/temperature sensors and process connection. The low pressure span completely welded sensor module is a twin-chamber system with an integral overload diaphragm, and a silicon pressure sensor. The temperature sensor as a temperature compensated reference value to compensate for the temperature drift. |
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Performance·Specifications
HUAHAI instruments｜Strive for excellence
Committed to provide solution for field instruments
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| Reference Accuracy of Calibrated Span (includes terminal-based linearity, hysteresis, and repeatability) |
| ± 0.075%; |
| If TD>10 (TD=URL/SPAN): ± (0.0075×TD) %; |
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| Ambient Temperature Effects |
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| Span Code |
-20℃～65℃ |
| B/L |
±(0.30×TD+0.20)%×Span |
| Others |
±(0.20×TD+0.10)%×Span |
| Span Code |
-40℃～-20℃ and 65℃～85℃ |
| B/L |
±(0.30×TD+0.20)%×Span |
| Others |
±(0.20×TD+0.10)%×Span |
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| Span Code |
Stability |
| B/L |
±0.2%×Span/1year |
| Others |
±0.1%×Span/1year |
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| Span and Range Limits (Gauge Pressure) |
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| Span/Range Limits |
kPa |
bar |
| B |
Span |
0.6～6 |
6～60mbar |
| Range Limits |
-6～6 |
-60～60mbar |
| C |
Span |
2～40 |
0.02～0.4 |
| Range Limits |
-40～40 |
-0.4～0.4 |
| D |
Span |
2.5～250 |
0.025～2.5 |
| Range Limits |
-100～250 |
-1～2.5 |
| F |
Span |
30～3000 |
0.3～30 |
| Range Limits |
-100～3000 |
-1～30 |
| G |
Span |
0.1～10MPa |
1～100 |
| Range Limits |
-0.1～10MPa |
-1～100 |
| H |
Span |
0.21～21 MPa |
2.1～210 |
| Range Limits |
-0.1～21 MPa |
-1～210 |
| I |
Span |
0.4～40 MPa |
4～400 |
| Range Limits |
-0.1～40 MPa |
-1～400 |
| J |
Span |
0.6～60 MPa |
6～600 |
| Range Limits |
-0.1～60 MPa |
-1～600 |
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| Span and Range Limits (Absolute Pressure) |
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| Span/Range Limits |
kPa |
bar |
| L |
Span |
2～40 |
0.02～0.4 |
| Range Limits |
0～40 |
0～0.4 |
| M |
Span |
2.5～250 |
0.025～2.5 |
| Range Limits |
0～250 |
0～2.5 |
| O |
Span |
30～3000 |
0.3～30 |
| Range Limits |
0～3000 |
0～30 |
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| External zero is continuously adjustable with 0.01% incremental resolution of span. Re-range can be done locally using the range setting switch. |
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| Mounting Position Effects |
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| Rotation in diaphragm plane has no effect. Tilting up to 90 degree will cause zero shift up to 0.25 kPa which can be corrected by the zero adjustment. |
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| Two wire 4 to 20 mA DC output with digital communications, linear or square root programmable. HART FSK protocol is option superimposed on the 4 to 20 mA signal. Output range: 3.9 mA to 20.5 mA. |
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| Failure Alarm (the mode can be selected) |
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Low Mode (min): 3.7 mA, High Mode (max): 21 mA
No Mode (hold): Keep the effective value before fault. The standard setting of failure alarm is High Mode. |
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| The amplifier damping constant is 0.1 sec; The sensor damping constant is 0.1~1.6 sec, it depends on t he range and range compression ratio. Amplifier damping time constant is adjustable from 0 to 60 sec by software and added to response time. |
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Ambient Temperature Limits: -40 to 85°C
-20 to 65°C with LCD display or fluorine rubber sealing
Storage and Transportation Temperature Limits
-50 to 85°C, -40 to 85°C with LCD display
Working Pressure Limits (Silicone oil)
From vacuum to upper range limits |
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| Span |
6kPa(B) |
40kPa(C) |
250kPa(D/M) |
3MPa(F/O) |
| OPL |
0.2MPa |
1MPa |
4MPa |
16MPa |
| Span |
10MPa(G) |
21MPa(H) |
40MPa(I) |
60MPa(J) |
| OPL |
20MPa |
50MPa |
50MPa |
70MPa |
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| Electromagnetic Compatibility (EMC) |
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| Look the EMC Performance Table |
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| Supply & Load Requirements |
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| 24 V DC supply Maximum voltage limited: 42VDC, Minimum voltage limited: 12VDC, 15VDC（with LCD display） 230Ω to 600Ω for digital communication |
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| The electrical connection is made via cable entry M20x1.5.The screw terminals are suitable for wire cross-sections up to 2.5mm2. |
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| Default Process Connection：1/2-NPT female thread, it can be changed to 1/2-NPT,G1/2,M20x1.5male thread and KF16 vacuum Connection. |
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| Isolating Diaphragm |
316L stainless steel/Hastelloy C |
| Process Connector |
316 stainless steel |
| Fill fluid |
Silicone oil |
| Amplifier Housing |
Aluminum with epoxy resin coat |
| Housing Gasket |
Perbunan（NBR） |
| Name plate and tag |
304 stainless steel |
| Weight |
1.6kg |
| Degrees of Protection |
IP67 |
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| Items |
Test items |
Basic standards |
Test conditions |
Performance Level |
| 1 |
Radiated interference (Housing) |
GB/T 9254-2008 |
30MHz～1000MHz |
OK |
| 2 |
Conducted interference（DC power port） |
GB/T 9254-2008 |
0.15MHz～30MHz |
OK |
| 3 |
Electrostatic Discharge (ESD) Immunity |
GB/T 17626.2-2006 |
4kV(Line) 8kV(Air) |
B |
| 4 |
RF electromagnetic field immunity |
GB/T 17626.3-2006 |
10V/m (80MHz～1GHz) |
A |
| 5 |
Frequency magnetic field immunity |
GB/T 17626.8-2006 |
30A/m |
A |
| 6 |
Electrical Fast Transient Burst Immunity |
GB/T 17626.4-2008 |
2kV(5/50ns,5kHz) |
B |
| 7 |
Surge Immunity |
GB/T 17626.5-2008 |
1kV（line to line） 2kV（line to ground） (1.2us/50us) |
B |
| 8 |
Conducted interference immunity induced by RF field |
GB/T 17626.6-2008 |
3V (150KHz～80MHz) |
A |
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Note：（1）Performance level A description: The technical specifications within the limits of normal performance.
（2）Performance level B description: Temporary reduction or loss of functionality or performance, it can restore itself. The actual operating conditions, storage, and data will not be changed. |
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| Horizontal Impulse Piping Type（side face） |
Horizontal Impulse Piping Type（front side） |
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| Horizontal Impulse Wall mounting Type |
Vertical Impulse Piping Type |
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| Note：Quick interface functionally equivalent to the signal terminal |
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| Default Process Connection（Code 1） |
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| M/D/F/G/H/I/J/O Span |
B/C/L Span |
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| Other forms of Process connector |
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| 1/2-NPT male thread（Code 2） |
M20x1.5 male thread（Code3） |
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| G 1/2 male thread（Code 4） |
Vacuum Connection DIN 28403 KF16 / ISO 2861（Code 5） |
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| 1/4-NPT male thread（Code 6） |
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| Gauge Pressure Transmitter |
| Absolute Pressure Transmitter |
| 10 |
Output |
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H
N |
4-20mA with HART
4-20mA |
| 20 |
Span |
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Gauge Pressure |
B
C
D
F
G
H
I
J |
0-0.6kPa～6kPa /（0-60～600 mmH2O）/(0-6～60mbar)
0-2kPa～40kPa /（0-200～4000 mmH2O）/(0-20～400mbar)
0-2.5kPa～250kPa /（0-0.25～25 mH2O）/(0-25～2500mbar)
0-30kPa～3MPa /（0-3～300 mH2O）/(0-0.3～30bar)
0-0.1MPa～10MPa /(0-1～100bar)
0-0.21MPa～21MPa /（0-2.1～210 bar）
0-0.4MPa～40MPa /（0-4～400 bar）
0-0.6MPa～60MPa /（0-6～600 bar） |
| Absolute Pressure |
L
M
O |
0-2kPa～40kPa /（0-200～4000 mmH2O）/(0-20～400mbar)
0-2.5kPa～250kPa /(0-25～2500mbar)
0-30kPa～3MPa /(0-0.3～30bar) |
| 30 |
Diaphragm fill fluid |
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A
C |
316L stainless steel Silicone oil
Hastelloy C Silicone oil |
| 40 |
Process connector accessory |
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1
2
3
4
5
6 |
1/2-NPT female thread
1/2-NPT male thread (Containing 1/4-NPT female thread)
M20x1.5 female thread
G 1/2 female thread
Vacuum Connection DIN 28403 KF16 / ISO 2861
1/4-NPT male thread |
| 50 |
Special function |
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N
O |
None
Degrease cleansing treatment（Oxygen measurement must be with fluorinated oil filled capsule, Viton (FKM) gasket, <6MPa ,<60℃) |
| 60 |
Mounting bracket |
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N
1
2 |
None
304 stainless steel
Carbon steel galvanized |
| 70 |
Integral indicator |
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N
1
2 |
None
LCD display
Backlit LCD display |
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| Note：Vacuum Connection DIN 28403 KF16 / ISO 2861, applies only to the range of less than 2.5 bar; |
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