EMTGP1

Manostar transmitter
List ofproducts

WO81

EMTGP1<Dedicated to negative pressure measurement>
RoHS

Anti-corrosion type fine differential pressure transmitterThis is an anti-corrosion type fine differential pressure transmitter dedicated to negative pressure

WO71

measurement. This is mainly suitable for the monitoring of static pressure (negative pressure) at theexhaust duct for gas containing corrosive gas in a production factory.

FR51A

MS99

MS99S

MS61A-RA

QDP33

EMD8A

EMD7

EMT1

EMTGP1EMTGP1A type

EMT1H

EMTGP1B type(Indoor drip-proof type)(Exposed terminal type)

EMT6

EMP5A

EMRT1

HWS15A

Accessories
Application

Precautions
Maintenance<Main application fields>•	General factory management
equipment•	Negative pressure for dust
collector/differential pressure ofair conditioners•	Filter pressure lossmanagement•	Precision machine
manufacturing line•	Building air conditioning control
equipment<Usage>•	Detection of clogging of air filter•	Room pressure measurement
in a clean room•	Measurement of clogging ofbug filter•	Measurement of dynamic
pressure at ventilation/exhaust
device*(Refer to pages 114 to 117)

81

Product code

EMTGP1A

Pressure range code

0D－200(Example)

Range
Unit
OutputExternalshapeMaximum value

DE0A
BPakPaTwo-wire type 4–20 mA DC
Indoor drip-proof type
Exposed terminal type◆When making an inquiry or placing an order, specify the above
product code.

EMTGP1

Manostar transmitter
EMTGP1

List ofproducts

Specifications

WO81

Model

Indoor drip-proof type

Exposed terminal type

EMTGP1A

EMTGP1B

Pressure unit

Pa, kPa

Pressuremeasurement
methodSingle pressure type (negative pressure measurement)

Measured gas

Corrosive gas (sulfuric acid gas cannot be measured; for details, contact us)

Pressure-receiving
element

Diaphragm

Mounting orientation

Horizontal (inclination angle of within ± 5°)

Operating ambient
temperature

10°C to 40°C

Operating ambient
humidity

90% RH or below (no condensation allowed)

Material of gascontacting part

Diaphragm PEEK film and molded item
Base
PEEK molded item

Exterior material

Main body: aluminum die casting, painting on exterior (paint color: gray)Electric signal
conversion method

Variable inductance

Output andtransmission
methodOutput signal of 4 to 20 mA DC (load resistance of 500 Ω or lower)
Power voltage of 24 V DC ± 10% (ripple of 0.2 V P-P or lower)

Insulation
resistance

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

Durable impact

5 to 10 Hz, amplitude of 10 mm,
10 to 50 Hz, acceleration of 39 m/s2 (two hours each for three axial directions)

Durable vibration

100 m/s2 (six times each for three axial directions)Base mounting
screw size

Internal thread for general U.S. pipes 1/4-18NPT

Mass

EMTGP1A type: approx. 980 g
EMTGP1B type: approx. 860 g

WO71

FR51A

MS99

MS99S

MS61A-RA

QDP33

EMD8A

EMD7

EMT1
Pressure range
code

Pressure range

D - 200

0 to −200 Pa

D - 300

0 to −300 Pa

D - 500

0 to −500 Pa

D - 1000

0 to −1000 Pa

E-2Accuracy(at 20°C)

Temperature characteristics(each for zero and span)at 10°C to 40°C

Pressure-receiving
element material

Withstanding pressure ofpressure-receiving element(Refer to page 118)

±2.5％ FS

±0.15％ FS/°CPEEK film－10 kPa

0 to −2 kPa◆This instrument cannot measure combustible gas.
◆Do not install this product in an explosion hazard area.
◆Although this product is corrosion resistant, it may not be used depending on the type orconcentration of the corrosive gas and the use environment.
Before using this product, be sure to conduct evaluation in actual usage conditions and confirm that
there is no problem.
◆For the use environment, refer to page 118.

EMTGP1

EMT1H

EMT6

EMP5A

EMRT1

HWS15A

Accessories
Application

Precautions
Maintenance82

EMTGP1

Manostar transmitter
List ofproducts

WO81

EMTGP1
External dimension drawing
EMTGP1B（露出端子形）(exposed terminal type)

EMTGP1A type (indoor drip-proof type)WO71

100

10088±0.3

8888±0.3

88ĳ KROH
îĳ KROH
RUî0WDSîĳ KROH
RUî0WDS

MS99S

3DQHOFXWWLQJ
MS61A-RA

116±0.3

116

100116ĳ KROH

100MS99116±0.3

FR51A

0WHUPLQDOVFUHZ

3DQHOFXWWLQJ*LQWHUQDOWKUHDG

EMTGP1EMT1H

í137,QWHUQDOWKUHDGIRU
JHQHUDO86SLSHV

EMT6Terminal connection diagram
±P$&KHFNWHUPLQDO

12EMTGP143EMRT1HWS15A

Accessories
Application

Precautions
Maintenance834±P$
5HFHLYLQJGHYLFH
9'&SRZHUVRXUFH

When an ammeter with an internal resistance of 10 Ω or lower isconnected to the check terminal, it is possible to monitor the output
signal even during operation.
◆When this instrument is used in combination with our receiving
instrument, a separately installed DC power source is not necessary
because the receiving instrument has a built-in DC power source fora two-wire type fine differential pressure transmitter. (Refer to page96)

Terminal screw tightening torque: 1.0 to 1.3 N·m
Do not tighten to a torque that exceeds the specified
Caution value because doing so breaks the instrument body.

！

í137,QWHUQDOWKUHDGIRU
JHQHUDO86SLSHV$WPRVSKHUHRSHQLQJSRUWRQWKHKLJKSUHVVXUHVLGH

Transmission output diagram (pressureoutput signal)*URXQGLQJ

EMP5A

POSITION$WPRVSKHUHRSHQLQJSRUWRQWKHKLJKSUHVVXUHVLGH

4EMD7EMT1

水 平
HORIZONTALPOSITION

2XWSXWVLJQDO P$

HORIZONTAL

94

水 平

EMD8A

91115

QDP3320124050
3UHVVXUH )6100EMTGP1

Manostar transmitter
EMTGP1

List ofproducts

Accessories dedicated to EMTGP1
Terminal cover set

RoHS

WO81

Plastic gland (Ace Service Co., Ltd.)

Adapter for conduit(Auxiliary item)

WO71

FR51A

Item number

Material

TCA-T1

Polycarbonate/brassThis is used to protect theterminal screw of EMTGP1Btype (exposed terminal type).
This is already installed at
the time of purchase of theinstrument.

PolyacetalBlackRedGreen

6．
5
8．
5
10．
0

9．
0
11．
0
12．
5

This is used when the wiring of fine differential pressuretransmitter is conducted with instrumentation cables. By
paying attention to the finish outer diameter of the cable
to be used, select a plastic gland in a size that allows therubber bushing to retain the cable outer diameter when
the cap nut is tightened.

22C 19AC4‒2T
AC4‒3T
AC4‒4T

Outer diameter of compatible

Color of rubber
electric wire D (mm)bushing
Minimum Maximum

256FUHZIRUHOHFWULF
ZLUHFRQGXLWMaterial

G 1/2

Item
numberφ 15

10Item number

ADPA-EMT1

MS99

MS99S

Material

BrassWhen conducting wiring to the fine differential
pressure transmitter by passing the wire through thethin steel electric wire conduit with a nominal size of
19 or a metallic flexible electric wire conduit, because
the service entrance of the transmitter has a G1/2
internal thread and a different size, use an adapter forthe conduit.

MS61A-RA

QDP33

EMD8A

EMD7

Bracket for mounting on vertical wall surface (horizontal mounting）*Mounting screw is not included.

ĳ KROH

îĳILQHGLIIHUHQWLDOSUHVVXUHWUDQVPLWWHUPRXQWLQJKROH

EMT1

EMTGP1135

EMT1H

PRU
PRUH
9HUWLFDOZDOOVXUIDFH

EMP5AEMRT11005525

1.6135110

EMT6HWS15A

îĳZDOOVXUIDFHPRXQWLQJKROH

Accessories

Item number

BRKT‒T1GP1*For quality improvement or for another reason, part of the specifications may be subject to change without prior notice.

Material

Steel

Application

Precautions
Maintenance84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 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 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