MASS FLOW METER WITH INDICATOR MODEL 8500 kofloc Vietnam
Hãng sản xuất: KOFLOC
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live:ha_1652MASS FLOW METER WITH INDICATOR MODEL 8500 kofloc Vietnam, MASS FLOW METER WITH INDICATOR MODEL 8500 kofloc Viet nam. MASS FLOW METER WITH INDICATOR MODEL 8500 kofloc
KOFLOC Vietnam, KOFLOC Viet nam, KOFLOC
This mass fl ow controller/meter driven by a 24 VDC power supply has been developed as a successor to the MODEL8300.
The view point change function of the display unit and the pattern setting function are unique to this model, and noise resistance has been improved dramatically. A sister model with a detachable display and setting unit is also available.
Features
・The high-lift actuator allows this compact model to control a large fl ow rate.
・Equipped with a display and setting unit, this model can be op-erated by a 24 VDC power supply.
・The RS232C/RS485 communication function and integration function are provided as standard equipment.
・The 14-bit converter permits display and operation in 4-1/2 dig-its.
・Control of the fl ow rate of infl ammable gas is possible, because the heat generating part of the sensor is not exposed to gas.
・There are no limitations on the mounting position that may be employed.
・In addition to SV setting, fi ve other patterns can be set.
・Auto zero and auto close functions are also standard.
Standard Specifi cations
| ITEM | 8500MC/MM | 8550MC/MM |
| Flow range | 10SCCM〜20SLM | 30SLM〜100SLM |
| （N2 equivalent 20℃/1ATM） | （freely selectable） | （freely selectable） |
| Sensor type | Thermal sensor | |
| Valve type（*1） | Normally closed proportional solenoid valve | |
| Control range（*1） | 2〜100％（F.S.） | 5〜100％（F.S.） |
| Response（*1） | ≤2sec | ≤3sec |
| (within±2%F.S) | (within±2%F.S.) | |
| Accuracy | ±1.0%F.S.（25℃） | ±1.5%F.S.（25℃） |
| Temperature coefficient | ±0.1F.S./℃（15〜35℃） | ±0.2F.S./℃（15〜35℃） |
| Repeatability | ±0.5%F.S. | |
| Operating differential pressure （*1） |
F.S.≤5SLM 50〜300kPa（G） | F.S.≤50SLM 150〜300kPa（G） |
| F.S.＞5SLM 100〜300kPa（G） | F.S.＞50SLM 200〜300kPa（G） | |
| Option：Medium differential pressure（MP）, low differential pressure（LP） specifications are available |
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| Allowable operating pressure（*1） | 500kPa（G） or less | |
| Proof pressure | 980kPa（G） | |
| Leak rate | ≤1×10−8Pa・㎥/s（excluding permeation of He） | |
| Allowable operating temperature | 5〜45℃ | |
| Allowable operating humidity | 10〜90％RH（No condensation allowed） | |
| Materials of gas contact part | Body : SUS316 | |
| Valve seat : FKM（option : CR or NBR） | ||
| Sealing : FKM（option : CR or NBR） | ||
| Electrical connection | Dsub half pitch 20pin DX10M−20S(HRS) | |
| Flow rate setting signal | 0〜5VDC（input impedance 100kΩ or more) | |
| （*1） | or 4〜20mA selectable | |
| Flow rate output signal | 0〜5VDC（external load resistance 250kΩ or more） or | |
| 4〜20mA （external load resistance 300Ω or less）selectable | ||
| Communication | RS232C（3 wire）or RS485（3 wire） selectable | |
| Other functions | Instantaneous flow rate・integrated flow rate display （ 7-segment 4-digit LED | |
| display accuracy ±1% integrated display 0000〜9999MAX）, | ||
| Alarm output（NPN open collector output 2 points | ||
| Max DC35V 50mA）, pattern setting（5 pattern） function | ||
| Required power supply | 24VDC±10%（ripple 5%） current consumption 300mA max | |
| Joint | Standard 1/4F900（9/16-18UNF） | Standard 3/8F900（9/16−18UNF） |
| （Main unit bore） | Option 1/8F900, 1/4UJR, | Option 1/2F900, 3/8UJR, |
| Rc1/4 etc. | Rc3/8 etc. | |
| Weight | Approx. 1200g | Approx. 1500g |
