List of
products WO81
Receiving instrument
RoHS WO71 When this instrument is used in combination with a micro differential pressure transmitter, it is possible to measure pressure, airflow rate, and airflow speed. • Incorporated with a DC power source for two-wire type micro differential pressure transmitter. • Equipped with two alarm outputs for which the action can be selected in accordance with the usage. FR51A • Incorporated with a square root calculation function (for airflow rate/airflow speed receiving instrument only). MS99 • Front panel with IP66 structure MS99S MS61A-RA QDP33 EMD8A EMD7 EMT1 EMTGP1 EMT1H EMT6 Product code EMP5A EMP5A EMRT1 HWS15A Accessines <Main application fields> • General factory management equipment • Negative pressure for dust collector/differential pressure of air conditioner Filter pressure loss management • Precision machine manufacturing line Building air conditioning control equipment Application Precautions Vaintarance <Usage> • Detection of clogging of air filter • Room pressure measurement in a dean room • Measurement of clogging of bug filter Measurement of dynamic pressure at ventilation/exhaust device *(Refer to pages 114 to 117)
◆When making an inquiry or placing an order, specify the above product code. ◆When you use this product for airflow rate/airflow speed measurements, we need to obtain the specifications of the pressure detection side. ◆This product has been adjusted to measure pressure, airflow rate, and airflow speed by combining the digital indicator JIR-301-M, BK, P24 T2917 manufactured by Shinko Technos Co., Ltd. with a micro differential pressure transmitter. ◆Some constituting parts of this instrument contain polyvinyl chloride.
For the purpose of manufacturing of airflow rate/airflow speed meter, fill out the airflow rate/airflow speed specification document preparation sheet on page 15, and inform us of the data. ◆For use environment, refer to page 118. List of WO81 WO71 FR51A MS99 MS99S MS61A-RA QDP33 EMD8A EMD7 EMT1 EMIGP1 EMT1H EMT6 EMP5A EMRT1 HWS15A Acossones Application Precautions Maintenance
EMP5A List of 
products WO81 External dimension drawing WO71 FR51A MS99 MS99S MS61A-RA
Notes on lead wire crimping terminal
Use a crimping terminal with insulation sleeve that is compatible with M3 screw as shown below.
Terminal screw tightening torque: 0.6 to 1.0 N m Recommended mounting screw tightening torque: approx. 0.12 N m Do not tighten to a torque that exceeds the specified value because doing so breaks the instrument body. Caution EMT1H
Operation panel
EMT6 EMP5A EMRI1 HWS15A Accessines Application Precautions Ilaintarance QDP33 EMD8A EMD7 EMT1 EMIGP1 ① PV display : Displays the input value in the red display. ② SV display : Displays the A1 setting value, A2 setting value, and A3 setting value in the green display. ③ A1 indication lamp : The red indicator lamp is lit when the A1 output is turned on. : The red indicator lamp is lit when the A2 output is turned on. (This is not used in EMP5A.) ④ A2 indication lamp ② A3 indication lamp : The red indicator lamp is lit when the A3 output is turned on. ④ A4 indication lamp : The red indicator lamp is lit when the A4 output is turned on. (This is not used in EMP5A.) ⑦ HOLD indicator lamp : The yellow indicator lamp is lit when the PV hold (hold, peak hold, bottom hold) output is turned on. ® A1 setting indicator lamp  : The green indicator lamp is lit when the A1 setting is displayed. ③ A2 setting indicator lamp  : The green indicator lamp is lit when the A2 setting is displayed. (This is not used in EMP5A.) (@ A3 setting indicator lamp  : The green indicator lamp is lit when the A3 setting is displayed. ( ) A4 setting indicator lamp  : The green indicator lamp is lit when the A4 setting is displayed. (This is not used in EMP5A.) 02 Up key Increases the setting value. (3) Down key : Decreases the setting value. (1) Mode key : Switches the setting mode, and registers the setting value. (To register setting value and selected value, press the Mode key.) 15 Fast key : Simultaneously pressing the Up key or Down key and the Fast key increases the speed of setting value increase/decrease.
List of 
 products WO81 WO71 FR51A MS99 MS99S MS61A-RA QDP33 EMD8A EMD7 EMT1 EMIGP1 EMT1H EMT6 EMP5A EMRT1 HWS15A Acossones Application Precautions Maintenance
List of 
products WO81
Input-output relationship diagrams
a: Low level cutoff range (This can be arbitrarily selected in the input range of 0% to 25%.) b: Input signal maximum value (This corresponds to the airflow rate/airflow speed maximum value, and slightly differs from 20 mA depending on individual receiving instrument.) Note on display/output range Display: This instrument displays the scaling range from over 110% to below −1%. Output: When the input value exceeds the output range, the output is fixed to 0% FS and 100% FS. Upper limit action/lower limit action When the input exceeds or falls below the alarm setting value, the alarm output is turned on (off when non-excitation is set). Upper limit action with standby/lower limit action with standby This is a function to refrain from alarm output even when the input at the time of turning on of power supply to the instrument is within the alarm action range. Also, when the input enters the alarm action range due to the change of the alarm setting value during operation, the alarm will not be output. Then, once the input exceeds the alarm action point (alarm setting value), the standby function will be canceled. Application Precautions Ilaintarance MS61A-RA QDP33 EMD8A EMD7
Alarm operation diagram
EMT1 EMIGP1 EMTIH EMT6 EMP5A EMRT1 HWS15A
Operation explanation:
Accessines FR51A MS99 MS99S WO71
EMP5A Wiring List of 
 products WO81 When connected with our two-wire type micro differential pressure transmitter In combination with our two-wire type micro differential pressure transmitter, short-circuit the terminals (10) and (19) with the supplied short-circuiting wire. In this case, a separately installed DC power source is not necessary because our receiving instrument has a built-in DC power source for two-wire type micro differential pressure transmitter. When connected with our four-wire type micro differential pressure transmitter The DC power source for two-wire type micro differential pressure transmitter incorporated in our receiving instrument is not used. Accessories dedicated to EMP5A RoHS HWS15A Acossones Application Precautions Maintenance FR51A MS99 MS99S MS61A-RA QDP33 EMD8A EMD7 EMT1 EMTGP1 EMT1H EMT6 EMP5A EMRT1 WO71
_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