EMT6

Manostar transmitter
List ofproducts

WO81

EMT6RoHS

Small-sized fine differential pressure transmitter• This is a small-sized/light-weight type

WO71

FR51A

fine differential pressure transmitter.
• A silicone rubber piece with small
hysteresis is used in the sensor part.
• The zero adjustment trimmer provided
on top facilitates zero adjustment as ofMS99

after installation.

MS99S

EMT6

MS61A-RA

QDP33

EMD8A

EMD7

EMT1

EMTGP1

EMT1H

EMT6

EMP5A

EMRT1

HWS15A

Product code
<Main application fields>

EMT6• Semiconductor manufacturingequipment• Negative pressure for dust
collector/differential pressure of airconditioners• Filter pressure loss management• Precision machine manufacturingline• General factory management
equipment

BPressure range code0FVDV
H
None

Range
Unit

• Measurement of internal pressure ofindoor device• Detection of clogging of air filter• Measurement of clogging of bugfilter• Measurement of dynamic pressure
at ventilation/exhaust device• Room pressure measurement in aclean room*(Refer to pages 114 to 117)

BaseOutput

Range for specification of vertical mountingRange for specification of horizontal mounting

Range for arbitrary mounting
Maximum valueDEPaFVFor vinyl pipe

0Two-wire type 4–20 mA DCkPa

External shape

Exposed terminal typeB◆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 thespecifications of the pressure detection side.
Fill out the airflow rate/airflow speed specification document preparation sheet on page 15 andinform us of the data.

Mounting orientation and range
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90°

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K

90°

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45°

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45°

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0°20°

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0°10°

89(Example)
Mountingorientation

Application

Maintenance

V<Usage>Accessories

Precautions

100

10°+RUL]RQWDO
SODQH

EMT6

Manostar transmitter
EMT6

List ofproducts

Specifications
Model

WO81

EMT6

Pressure unit

Pa, kPa

Pressure measurement
methodDifferential pressure method

Measured gas

Air and noncorrosive gas (liquid cannot be measured)

Pressure-receiving
element

Diaphragm (silicone rubber)Withstanding pressureof pressure-receiving
element

10 kPa (refer to page 118)

Instrument bodywithstanding pressure

50 kPa (refer to page 118)

Exterior material

Polyamide

Electric signal conversion
methodVariable inductance

Insulation resistance

Between terminal and case: 20 MΩ or higher (500 V DC megger)

Operating ambient
temperature

0°C to 50°C (no freezing allowed)

Pressure range
codeＤ

Pressure range50 H

0-50 Pa

Ｄ 100 H

0-100 Pa

Ｄ 200 H

0-200 Pa

Ｄ 300 H

0-300 Pa

Ｄ50 V

0-50 Pa

Ｄ 100 V

0-100 Pa

Ｄ 200 V

0-200 Pa

Ｄ 300 V

0-300 Pa

Ｄ 500

0-500 Pa

Ｄ 10000-1000 PaＥ

20-2 kPaＥ

30-3 kPaＥ

50-5 kPa

Operating ambient
humidity

90% RH or below (no condensation allowed)

Durable vibration

5 to 10 Hz, amplitude of 10 mm,

WO71

2

10 to 50 Hz, acceleration of 39 m/s (two hours each for three axialdirections)
Durable impact

100 m/2 (six times each for three axial directions)Compatible pipeVinyl pipe or rubber pipe (inner diameter of 4 mm)

Base polarity

Indicating high-pressure side and low-pressure side with “H” and “L”
marks, respectively, at piping connection base part.

MassApprox. 110 g

FR51A

MS99

MS99S
Accuracy(at 20°C)

Mounting orientation

Temperature characteristics(zero + span)
at 0°C to 50°C

Output and transmission
methodMS61A-RA
Horizontal(specification)

QDP33
Two-wire type:Output signal of 4 to 20 mA DC
Upright (specification)±2.5％ FS(load resistance of 500 Ω or

±0.15％ FS/°C

EMD8Alower)
Power voltage of 24 V DC ± 10%(ripple of 0.2 V P-P or lower)

Between horizontal
and uprightArbitrary mounting

EMD7EMT1◆When using this product in a combustible gas atmosphere, use the intrinsically safe type EMT1H described on page 85.
◆For the use environment, refer to page 118.

EMTGP1

External dimension drawing

EMT1H

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SRZHUVRXUFH
50±0.360
7450

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0RXQWLQJ
KROH

㹍㹑㹃㹒

㹘㹃㹐

50±0.3

Terminal connection diagramîĳ KROH RU
0WDS0WHUPLQDOVFUHZ

3DQHOFXWWLQJ

φ5.55060

ＥＭＴ6＋−＋−EMT6−

5HFHLYLQJGHYLFH

±P$＋◆When this instrument is used in combination with
our receiving instrument, a separately installed
DC power source is not necessary because thereceiving instrument has a built-in power source fora two-wire type fine differential pressure transmitter.
(Refer to page 96)

Transmission output diagram(pressure-output signal)

7HUPLQDOFRYHU

EMP5A

EMRT1

HWS15A

Accessories

15！
CautionTerminal screw tightening torque: 0.7 to 1.0 N·m
Do not tighten to a torque that exceeds the specified value because
doing so breaks the instrument body.

2XWSXWVLJQDO P$204.5

39Application
20Precautions
Maintenance124050100

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Warranty■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.

■Scope of warranty
If any failure or defect attributable to us becomes clear during the above warranty period, we will repair the product or supply asubstitute 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 theinstruction 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 ofproduct 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 ofapplication.
(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 givenService■Scope of service
Because the product price does not include service expenses, such as the dispatch of engineers, we will separately charge for theexpenses in the following cases:(1) Instruction for installation and adjustment and a witnessed test run(2) Maintenance inspection, adjustments, and repairs(3) 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 orother reasons.

●For order placement, contactGeneralagent

Manostar Shop Co., Ltd.

1-2-3 Nishishiriike-cho, Nagata-ku, Kobe City, Hyogo 653-0031
TEL. +81-78-621-7000 FAX. +81-78-621-7788

Manufacturer

Yamamoto Electric Works Co., Ltd.

1-2-3 Nishishiriike-cho, Nagata-ku, Kobe City, Hyogo 653-0031
TEL. +81-78-631-6000 FAX. +81-78-631-6020

SEPTEMBER 2021 YAMAMOTO ELECTRIC WORKS CO., LTD., JAPAN