39
Chapter 7. SPECIFICATIONS
*7: For battery models, if the operation temperature and humidity ranges for the batteries are more narrow than the
ranges for the MCF, the ranges for the battery have priority.
The operation and storage temperature range for the trial-run batteries (included with the MCF) is -10 to +45°C
Example : If batteries with an operating temperature range of -10 to +50 °C are used, the operating
temperature range for the MCF is -10 to +50 °C. If batteries with an operating temperature range
of -15 to +50 °C are used, the operating temperature range for the MCF is -10 to
+50 °C.
*8: The response time delay goes from the calculation filter to the instantaneous flow rate and the integration switch.
If faster responses are necessary, change the calculation filter setting.
Example : 11 seconds (time until the value reaches 95 % of the final value in response to a 0 to 100 % FS
step input) when the calculation filter is set to 4, and 5 seconds when it is set to 2
Compared to normal mode, standby mode causes a delay of up to 10 seconds.
Item
MCF0080
MCF0150
MCF0151
MCF0250
MCF0400
MCF0500
Operating pressure range -0.07 to +1.0 MPa (gauge pressure)
*
7
Operating temperature range
-10 to +60 °C (without freezing)
*
7
Operating humidity range
0 to 90 % RH (without condensation)
*
7
Storage temperature range -20 to +70 °C (without freezing)
*
7
Storage humidity range
0 to 90 % RH (without condensation)
*
7
Pressure resistance
1.5 MPa (gauge pressure)
Allowable leakage rate
100 mL/h (at internal pressure of 1.5 MPa)
Pipe size (Rc or G depend-
1/4 inch
1/2 inch
1/2 inch
1 inch
1 1/2 inch
2 inch
ing on model)
Power supply *
10
4 AA alkaline batteries
Measurement cycle *
9
1
±
0.1 s1 (normal mode) 10
±
0.1 s (standby mode)
Response time *
9
30 s max. (time until 95 % of final value for response to 0 to 100 % FS step input, with
50 ms measurement cycle and calculation filter 8.) *
8
Event output
NPN open collector: 30 Vdc, 50 mA max
Selectable from following functions:
• Instantaneous flow rate switch (upper limit, lower limit, within range)
• Integrated flow switch (count-up, countdown)
• Integrated pulse output (500ms)
• Alarm output
Alarm event
NPN open collector: 30 Vdc, 50 mA max
• Alarm output
Dielectric strength
1 mA or less of leak current when 500 Vac is applied for 1 s between contacts of
connector and main flow path or mounting bolts.
Insulation resistance
50 M
Ω
or more between contacts of connector and main flow path or mounting bolts,
with 500 Vdc megger
Measurement module mount- 2.6 to 3.3 N·m
ing bolt tightening torque
Protective structure
IP65 (JISC0920 and IEC529): drip-proof and dust-proof structure, assuming indoor use
Tightening torque for
1.3 to 1.6 N·m
battery box cover screws
Mass
Approx. 400 g Approx. 400 g Approx. 400 g
Approx. 500 g
Approx. 700 g Approx. 1.1 kg
