Kofloc 8500MM Series Mass Flowmeter this mass flow controller/meter driven by a 24 VDC power supply has been developed as a successor to the MODEL8300. The viewpoint change function of the display unit and the pattern setting function is unique to this model, and noise resistance has been improved dramatically. A sister model with a detachable display and setting unit is also available.
A mass flow meter with an integrated display that can directly read the flow rate. It operates only with a single 24V DC power supply and can be installed in any orientation. It can be driven by AC100V by using an AC power adapter (sold separately). Since the heat-generating part of the sensor and the fluid are not in contact, it also supports the flow rate measurement of flammable gas. Various event outputs such as power supply, flow rate signal (analog), and digital communication (RS485 / 232C) can be connected with the optional free cable.
Specifications
MODEL |
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 |
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 |
(*1)Only for mass flow controller.