Electromagnetic Digital Flow Switch Temperature characteristics Ambient temperature 5% F.S. (25C reference) Fluid temperature 5% F.S. (25C reference) Operating pressure range*3 0 to 1 MPa Proof pressure*3 2 MPa Accumulated flow range*4 9.9 L 9 L by 0.1 L by 1 L Switch output NPN or PNP open collector output Maximum load current 80 mA Maximum applied voltage 28 VDC Internal voltage drop NPN: 1 V or less (at load current of 80
to 1.050 MPa Pressure Display/Smallest settable increment 0.1 kPa 0.001 MPa Withstand pressure 500 kPa 1.5 MPa Power supply voltage 12 to 24 VDC 10%, Ripple (p-p) 10% or less Power supply Current consumption 25 mA or less Protection Polarity protection Display accuracy 2% F .S. 1 digit (Ambient temperature of 25 3C) Repeatability 0.2% F .S. 1 digit Temperature characteristics 2% F .S. (25C
Item CH1 CH2 Setting range 5 to 35 10 to 40 CH2 set temperature CH1set By default 20 25 temperature [Tips] Sample set temperature: To change from CH1SP: 25C and CH2SP: 30C status, to CH2SP: 15C, first set CH1SP to 15C and then CH2SP to 15C. If CH2SP is set to 15C before setting CH1SP to 15C, then the following message appears: Please set CH1SP first.
Minimum display unit (Ambient temperature of 25C) Analog output accuracy 0.5% F.S. (Ambient temperature of 25C) Repeatability 0.1% F.S. Minimum display unit Temperature characteristics 0.5% F.S. (Ambient temperature: 0 to 50C, 25C standard) Accuracy Output type Select from NPN or PNP open collector output.
minute between live parts and case Insulation resistance 50 M between live parts and case (at 500 VDC) 10 to 500 Hz at whichever is smaller of 1.5 mm amplitude or 98 m/s2 acceleration, Vibration resistance in X, Y, Z directions, for 2 hours each (De-energized) 980 m/s2 in X, Y, Z directions, 3 times each (de-energized) Impact resistance Temperature characteristics 2% F.S. or less (based on 25C
(Ambient temperature at 25C) Linearity 0.4% F.S. Repeatability 0.2% F.S. Effect of power supply voltage 0.8% F.S.
Trace the arrow mark, starting with F for cooling temperature 25C (pressure dew point 25C) to obtain the intersection G on the pressure characteristic line for 0.7 MPa. From the intersection G, trace the arrow mark to obtain the intersection H on the vertical axis. The intersection H is the amount of water included in the compressed air 1 m3 at 0.7 MPa, pressure dew point of 25C.
Item CH1 CH2 Setting range 15 to 25 20 to 40 CH2 set temperature CH1set By default 20 25 temperature [Tips] Sample set temperature: To change from CH1SP: 25C and CH2SP: 30C status, to CH2SP: 15C, first set CH1SP to 15C and then CH2SP to 15C. If CH2SP is set to 15C before setting CH1SP to 15C, then the following message appears: Please set CH1SP first.
MHK2-12S 120 12 9 4 9 13 76 Normally open Normally closed MHK2-16S 16 23 6 14.6 20.6 114 DL1 MHK2-20S 20 34 10 16 26 237 L2 MHK2-25S 25 58 14 19 33 443 20MHK2-12C 12 12 4 9 13 76 MHK2-16C 16 25 6 14.6 20.6 115 MHK2-20C 20 44 10 16 26 237 MHK2-25C 25 73 14 19 33 443 Series MHKL2/Long Stroke Type Note) Width at opening (mm) L2 Width at closing (mm) L1 Effective gripping force per finger (N)
MHK2-12S 120 12 9 4 9 13 76 Normally open Normally closed MHK2-16S 16 23 6 14.6 20.6 114 DL1 MHK2-20S 20 34 10 16 26 237 L2 MHK2-25S 25 58 14 19 33 443 20MHK2-12C 12 12 4 9 13 76 MHK2-16C 16 25 6 14.6 20.6 115 MHK2-20C 20 44 10 16 26 237 MHK2-25C 25 73 14 19 33 443 Series MHKL2/Long Stroke Type Note) Width at opening (mm) L2 Width at closing (mm) L1 Effective gripping force per finger (N)
: 80 Internal hold: 86 MHK2-16D 16 6 14.6 20.6 113 MHQ Double acting MHK2-20D 20 10 16 26 235 MHL2 MHK2-25D 25 14 19 33 440 MHK2-12S 120 76 13 9 4 12 9 MHR L1 Normally open Normally closed MHK2-16S 114 20.6 14.6 6 16 23 L2 MHK MHK2-20S 237 26 16 10 20 34 MHK2-25S 443 33 19 14 25 58 Single acting MHS MHK2-12C 76 13 9 4 12 12 MHK2-16C 115 20.6 14.6 6 16 25 MHK2-20C 237 26 16 10 20 44 MHK2-25C
20 10 16 26 8.3 O.D. holding:18.0 (80) I.D. holding :19.3 (86) MHK2-25D 25 14 19 33 15.5 MHK2-12S 120 12 2.0 (9) 4 9 13 2.7 Normally open Normally closed MHK2-16S 16 5.2 (23) 6 14.6 20.6 4.0 MHK2-20S 20 7.6 (34) 10 16 26 8.4 L1 MHK2-25S 25 13.0 (58) 14 19 33 15.6 Single acting L2 MHK2-12C 12 2.7 (12) 4 9 13 2.7 MHK2-16C 16 5.6 (25) 6 14.6 20.6 4.1 MHK2-20C 20 9.9 (44) 10 16 26 8.4 MHK2-25C
) Battery life Response speed 250 ms 2% F .S. or less (Temperatue conditions: at 25C) Display accuracy 1% F .S. or less (Temperatue conditions: at 25C) Repeatability 3% F .S. or less (0 to 50C with 25C standard) Temperature characteristics Piping port M5 x 0.8 0 to 50C (With no condensation) Ambient operating temperature Ambient operating humidity 35 to 85% RH (With no condensation) Shock
(Example) Mass of transferred object: 300 kg, Transfer speed: 20 m/min Friction coefficient: = 0.1 Mass of transferred object m [kg] Friction coefficient RS2H50-30 The graphs indicate the values at normal temperature. (20 to 25C) = 0.1 = 0.2 500 500 Mass of transferred object m [kg] Mass of transferred object m [kg] 50 Operating range Upper limit 400 400 Upper limit 50 Operating range
Item Unit Standard value Corrosion Scale generation pH (at 77F [25C]) 6.0 to 8.0 Tap Water (as Facility Water) Quality Standards Electric conductivity (25C) [S/cm] 100 to 300 The Japan Refrigeration and Air Conditioning Industry Association JRA GL-02-1994 Cooling water system Circulation type Make-up water Standard item Chloride ion (Cl) [mg/L] 50 or less Sulfuric acid ion (SO42) [mg/L
) Battery life Response speed 250 ms 2% F .S. or less (Temperatue conditions: at 25C) Display accuracy 1% F .S. or less (Temperatue conditions: at 25C) Repeatability 3% F .S. or less (0 to 50C with 25C standard) Temperature characteristics Piping port M5 x 0.8 0 to 50C (With no condensation) Ambient operating temperature Ambient operating humidity 35 to 85% RH (With no condensation) Shock
Repeatability ISA2 Hysteresis mode Hysteresis Adjustable (can be set from 0) IS Window comparator mode Display 3 digit, 7-segment indicator, 2-color display (red and green) can be interlocked with the switch output, Sampling cycle: 5 times/s ZSM 2%F.S. 1 digit or less (at 25C 3C) Display accuracy Indication light Light up when output is ON (Green) PF2 Functions Anti-chattering function, Unit
. *2 Linearity 1% F.S. or less Current output Load impedance Maximum load impedance: Power supply voltage 12 V: 300 , Power supply voltage 24 V: 600 Minimum load impedance: 50 Display 4-digit, 7-segment, 2-color LCD (Red/Green) Sampling cycle: 5 times/s Display accuracy 2% F.S. 1 digit (Ambient temperature of 25C) Indicator light Lights up when switch output is turned ON.
Temperature characteristics 2% F .S. (25C standard) Accuracy Output type Select from NPN or PNP open collector output.
25C 25C 1 Leakage: The value at a differential pressure of 0.01 MPa or higher and an ambient temperature of 20C 2 This product has an IP67 enclosure, but if water enters the product, it may result in malfunction or breakage.