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WO81 RoHS WO71 FR51A MS99 MS99S MS61A-RA QDP33 EMD8A EMD7 EMT1 EMIGP1 EMTIH EMT6 EMP5A EMRT1 HWS15A Accessines Application Precautions Ilaintarance (2) on relationship between Procuring device based airflow rate (speed) and pressure When the airflow rate (speed) is conversion condition of dynamic pressure of the airflow rate (speed) up to Pa. is measured with the ◆When making an inquiry or placing an order, specify the above product code. To procure an airflow rate/speed meter, it is necessary to first prepare a specification document and check it. Because we will prepare a specification document, please fill in (1) or (2) in the sheet below and let us know the specifications. Airflow rate/airflow speed specification document preparation sheet
This page and the following page introduce the WO81 airflow rate/ airflow speed meters. For WO81 micro differential pressure gauges, refer to page 11. WO81 airflow rate meter ◆The maximum airflow rate/speed scale value is applied after rounding it to our scale value.
(Note) Accuracy at full span of pressure value (refer to page 121) ◆For use environment, refer to page 118.
Airflow rate/airflow speed range (scale example)
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 products WO81 WO71 FR51A MS99 MS99S MS61A-RA QDP33 EMD8A EMD7 EMT1 EMIGP1 EMTIH EMT6 EMP5A EMRT1 HWS15A Accessones Application Precautions Maintenance
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External dimension drawing
WO81 Installation of base on side face…………(standard condition at time of shipment from factory) VT base (for vinyl pipe) WO71 FR51A MS99 MS99S MS61A-RA QDP33 EMD8A EMD7 EMT1 EMTGP1 EMT1H EMT6 EMP5A
Example of base arrangement
EMRT1 HWS15A Accessinis Application Precautions Vaintarance Base tightening torque: 1 N m    Sealing cap tightening torque: 0.5 N m Do not tighten to a torque that exceeds the specified value because doing so breaks the gauge body  (Refer to page 120.) Caution
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Installation of base on rear face VR base (rotary type for vinyl pipe) MS61A-RA QDP33 EMD8A EMD7 EMT1 EMTGP1 EMT1H EMT6 EMP5A EMRT1 HWS15A Accessones Application Precautions Maintenance
Change of base arrangement
The WO81F type has two base mounting holes on each of the side face and the rear face, allowing various base combinations depending on the piping conditions.
1.Be sure to use bases in the combination of one high-pressure side (red) base and one low- pressure side (blue) base. 2. There are impossible base arrangements as shown on the right. 3. At two mounting holes on the gauge body that are not installed with bases, be sure to attach the sealing caps.
Mounting orientation and range
WO81 WO71 FR51A MS99 MS99S
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products WO81 WO71 FR51A MS99 MS99S MS61A-RA QDP33 EMD8A EMD7 EMT1 EMTGP1 EMTIH EMT6 EMP5A
Mounting method
EMRT1 HWS15A Accessines Application Presautions Vaintarance mounting fittings from the gauge body. first, put two mounting fittings back, and tighten screw A to secure the gauge. mounting screws B in two places to secure the gauge to the panel. Mounting screw B tightening torque: 0.5 to 0.6 N m Do not tighten to a torque that exceeds the specified value because doing so breaks the gauge body. Caution
List of 
products WO81 WO71 FR51A MS99 MS99S MS61A-RA QDP33 EMD8A EMD7 EMT1 EMTGP1 EMT1H EMT6 EMP5A EMRT1 HWS15A Accessones Application Precautions Maintenance
Mounting method
1. From four comers of the square gauge mounting frame, remove the M4 nuts, spring washers, and flat washers. (Be sure to install the gauge with- out removing the spacer nuts as shown in the figure.) 2. After installing the gauge in the panel, tighten the flat washers, spring washers, and M4 nuts in that order from the rear side. Caution • If you install the gauge to the panel after removing the spacer nut, the gauge frame may break • M4 nut tightening torque: 1 N m Do not tighten to a torque that exceeds the specified value because doing so breaks the gauge body. Base tightening torque: 1 N m Do not tighten to a torque that exceeds the specified value because doing so breaks the gauge body. (Refer to page 120) Caution mounting panel 6 mm
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Overview of structure WO81 WO71 FR51A MS99 MS99S MS61A-RA QDP33 EMD8A EMD7 EMT1 EMTGP1 EMTIH EMT6 EMP5A EMRT1 HWS15A
RoHS
Accessories for WO81
Accessines Application Precautions Vaintarance
A vinyl pipe or rubber pipe with an inner diameter of 6 mm can be connected. This is already installed when the gauge is purchased. rubber pipe with an inner diameter of 6 mm can be connected.
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 products RoHS Accessories for WO81 The tube mounting part is a push-in joint. For piping, use the separately sold tube (refer to page 112) or a tube compatible with JIS B 8381-1. (Connectable tube outer diameter: 6 mm) A metallic pipe, such as copper pipe and aluminum pipe, with an outer diameter of 6 ± 0.1 mm can be connected. However, for stainless steel pipe, use an MTW base. When connecting with a plastic pipe (outer diameter 6 mm × inner diameter 4 mm), remove the brass sleeve and use the separately sold resin inner sleeve set (XIN6×4; refer to page 111). MTW base This is used to connect a stainless steel pipe with an outer diameter of 6 ± 0.1 mm.
R1/8 base adapter
It is possible to connect an R1/8 joint. *The specifications of this adapter differ from those of the adapter for rear face piping. The tube mounting part is a rotary elbow push-in joint. The piping is the same as that for the PT base. (Connectable tube outer diameter: 6 mm) This serves as an elbow whose tube mounting part rotates. The piping material is the same as that for the MT base. When connecting with a plastic pipe (outer diameter 6 mm × inner diameter 4 mm), remove the brass sleeve and use the separately sold resin inner sleeve set (XIN6×4; refer to page 111). When arranging an MT base on the rear face of the WO81F type, this adapter is required as a spacer for hooking a stabilizing wrench to the base at the time of pipe connection. This adapter is also required when arranging the VR base or MR base (excluding MTW base) on the rear face in order to avoid interference between the base and panel. When connecting an R1/8 joint, use an R1/8 base adapter. High-pressure side
R1/8 base adapter (SUS)
Low-pressure side Application Precautions Maintenance It is possible to connect an R1/8 joint. *The specifications of this adapter differ from those of the adapter for rear face piping. WO81 WO71 FR51A MS99 MS99S MS61A-RA QDP33 EMD8A EMD7 EMT1 EMTGP1 EMT1H EMT6 EMP5A EMRT1 HWS15A Accessones
_Warranty period The warranty period for our product is one (1) year from delivery to the location specified by the orderer who makes a direct transaction with us.
IScope of warranty
If any failure or defect attributable to us becomes clear during the above warranty period, we will repair the product or supply a substitute product free of charge. However, even during the warranty period, we will exclude the product from the scope of the warranty if the failure or defect corresponds to any of the following: (1) The failure or defect was caused by an unreasonable condition, environment, handling, or usage not mentioned in the instruction manual, specifications, and our product catalog. (2) The failure or defect was caused by a factor other than our product. (3) The failure or defect was caused by a modification or repair conducted by a party other than us. (4) The failure or defect was caused by an event that could not be foreseen at the scientific and technical levels at the time of product shipment from us. (5) The failure or defect was caused by an external factor not attributable to us, such as acts of God and disasters. Please note that the warranty mentioned here means the warranty for our individual product, and damage provoked by a failure or defect of the product is excluded from the scope of the warranty. *This warranty is valid only in Japan.
Application and usage
Our products are designed and manufactured as general-purpose instruments for general industries. Therefore, our products are not intended for the following uses, and our products used in such a manner are outside the scope of application. (1) Equipment that is anticipated to greatly affect lives and properties, such as nuclear power generation, aviation, railways, marine vessels, vehicles, and medical devices (2) Utilities that include electricity, gas, and service water (3) Use in outdoor locations and under similar conditions or environments other than those stipulated in the instruction manual (4) Usage to which considerable safety consideration and attention equivalent to (1) and (2) above need to be given
Service
Scope of service Because the product price does not include service expenses, such as the dispatch of engineers, we will separately charge for the expenses in the following cases: (1) Instruction for installation and adjustment and a witnessed test run (2) Maintenance inspection, adjustments, and repairs Technical guidance and technical education (4) Witnessed inspections of products at our factory <<Note>>   The product specifications and information in this catalog are subject to change without prior notice for product improvement or other reasons. ●For order placement, contact 1-2-3 Nishishiriike-cho, Nagata-ku, Kobe City, Hyogo 653-0031 TEL. +81-78-631-6000 FAX. +81-78-631-6020