3-Screen Display High-Precision Digital Pressure Switch ∗1 ® New New The ∗1 Excluding the Z/ISE20B-L compatible type has been added to the 20B series. 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
Trace the arrow mark, starting from F for cooling temperature 77F (25C) (pressure dew point 77F (25C)) to obtain the intersection G on the pressure characteristic line for 102 psi (0.7 MPa). 8. From the intersection G, trace the arrow mark to obtain the intersection H on the vertical axis. 9.
This is a legacy product. Please contact us for the latest version.sales@ocaire.com
This is a legacy product. Please contact us for the latest version.sales@ocaire.com
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.
(Note5) Circulating fluid temperature: CH1: 20C/CH2: 25C at the device outlet. (Note6) Flow rate required to maintain cooling capacity.Install bypass piping if the flow rate is less than the minimum required flow rate. (Note7) Front 1m/Height 1m.
Flow rate LPM 3.4 Connector Specifications (Circulating fluid OUT is directly connected with IN) Cooling capacity Approx. 220W (Flow rate 1L/min, set temperature 25C and ambient temperature 25C) The compatibility of equipment is the responsibility of the person Description No. Signal Style and Part No. who designs the system or decides its specifications.
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
) 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
) 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
(Ambient temperature at 25C) 0.4% F.S. or less 0.2% F.S. or less 0.8% F.S. or less 2% F.S. or less (Ambient temperature: 25C reference) Resin case Sensor pressure receiving area: Silicon, O-ring: HNBR Oilproof heavy-duty cable 2.7 x 3.2 mm (Elliptic), 0.15 mm2 3 cores 3 m Case Pressure sensing section Material Lead wire Digital Pressure Switch for Vacuum/ZK2-ZS-A (Refer to the individual
Safety standards CE marking, UL (NRTL) standards 1 Conditions: Set temperature 25C, Ambient temperature 25C, Circulating ow rate 3 L/min 2 Conditions: Set temperature 25C, Ambient temperature 25C, Circulating ow rate 4 L/min 3 The indicated values are with a stable load without turbulence in the operating conditions. It may be out of this range in some other operating conditions. 7
Battery life 12 months continuous operation (Without backlighting, temperature conditions: at 25C) Response speed 250 ms Display accuracy 2% F.S. or less (Temperatue conditions: at 25C) Repeatability 1% F.S. or less (Temperatue conditions: at 25C) Temperature characteristics 3% F.S. or less (0 to 50C with 25C standard) Piping port M5 x 0.8 0 to 50C (With no condensation) Ambient operating
Pressure Minimum display unit/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
acting Single acting MHK2-16D 16 6 14.6 20.6 113 MHK2-20D 20 10 16 26 235 MHZ MHK2-25D 25 14 19 33 440 MHK2-12S 120 12 9 4 9 13 76 Normally open Normally closed L1 MHF MHK2-16S 16 23 6 14.6 20.6 114 L2 L1 MHK2-20S 20 34 10 16 26 237 MHL L2 Series MHK2 MHK2-25S 25 58 14 19 33 443 Series MHKL2 MHK2-12C 12 12 4 9 13 76 MHR MHK2-16C 16 25 6 14.6 20.6 115 MHK MHK2-20C 20 44 10 16 26 237 MHK2-25C