DM-3700-985B1-E

PRODUCT INFORMATIONDIGITAL MANOMETER

Wide pressure range from 200 Pa to 50 MPa.
Equipped with high-accuracy sensor
excellent in pressure-proof performance.

DM-3700
Digital Manometer■ Overview
 Sensors available for differential pressure, gauge pressure, pressure/vacuum, and absolutepressure. The absolute pressure and pressure/vacuum are optional.
 Covers wide range from 200 Pa (Micro) to 50 MPa (Extremely High).
 Comparators, Auto-Zero, Reading Holds, etc.
 ISO/IEC 17025 calibration required by TS16949 available.
 External sensor optionally available, which allows shorter piping to the DUT.
 Portable and fixable with dedicated brackets.
 Multi-power supply: 100 to 240 VAC■ Features
Description
Digital Display

0000 to ±9999

Comparator Output

5 outputs: Limits (HH、HI、LO、LL) and GO

8 Channels

8 individual programmable comparators

Reading Holds

The reading can be held at any time.

Peak value hold /Bottom value hold

The peak value in pressure rise and the bottom value in pressure drop can be held.

Auto-ZeroWith the current value set to zero, pressure changes after that can be displayed.

Analog Output

The analog voltage corresponding to the Pressure Range is output.
(Amplifier optionally available)

Digital Output

BCD output board is optionally available.
Data can be transferred to external equipment.

Keyboard Lock

The keyboard can be locked to prevent false operation.

Specifications

StandardSensor Type

Gauge Pressure

Measuring MediaAir / Non-corrosive gasAir, Non-corrosive gas, Liquid(Not corrosive to wetted material)

Sensing Element

Beryllium copper

Transducer

Inductance type

Accuracy *2

Differential Pressure

Accuracy

SUS630
SUS303O-ring: Fluorine rubber
Capacitance type±0.15 % of F.S. ±1digit *1

Temperature Characteristic at
Zero Point±0.03 % of FS/°C

Span Temperature
Characteristic±0.03 % of FS/°C
Less than 50 kPa: 10 x F.S.
50 kPa or more: 5 x F.S.

Proof Pressure
Maximum Line Pressure
Response TimeLess than 10 MPa: 2 x F.S.
10 MPa or more: 1.5 x F.S.

2 x Proof pressure－380 ms Max. (99 % of F.S.) *3

110 ms Max. (99 % of F.S.)

Digital Display

0000 to ±9999

Sampling Time

200 msComparator Output
Analog Output

HH, HI, GO, LO, LL (Relay contact output)
The analog voltage 1, 2 or 5 VDC corresponding to the Pressure Range isoutput. (5 and 10 VDC are optionally available.)
Ripple: Within 10 mV peak to peakBCD Output

Option (Open collector, TTL)

Power Source

100 to 240 VAC multi-power supply ±10 %, 50/60 Hz 1.0 A

Operating Temperature

5 to 40 °C

Pressure Inlet Port

Rc1/8Size

184 (W)×108 (H)×232 (D) mm

Weight3.5 kgPanel-Cut Size

■ External Appearance

Front Panel

181.5 (W) x 101(H) mm*1. Accuracy of drip-proof model: ±0.25％ of F.S.±1digit*2. Linearity, repeatability, and hysteresis are included.
*3. The response time in the range of 0 to 200 Pa is approx. 540 ms.

RearCosmoʼs ISO/IEC 17025 Calibration
What is ISO/IEC 17025?
ISO/IEC 17025 is an international standard providing the general requirements for testing and calibration
capabilities. The calibration certificates issued by ISO/IEC 17025 accredited Cosmo Group Calibration
Laboratory, Cosmo Instruments, are the global standard with high reliability.

Mutual Recognition Arrangement (MRA)
MRA is a multinational agreement for mutual recognition. The calibration results of MRA accredited
calibration institutions are equally acknowledged by all mutual recognition organizations and are valid
worldwide. This system is called One-Stop-Testing. Cosmo Group Calibration Laboratory has been accreditedby MRA. Our ISO/IEC 17025 calibration certificates are the evidence of our technical competence andfairness.

Strengths of MRA Accredited Laboratory
One-Stop-Testing eliminates duplicate tests. As a result, cost will be reduced and delivery time will beshortened. That contributes to customers' smoother international business transactions.

■ Applications
Pressure Measurement▌ Measuring the pressure inside of test

equipment/furnace▌ Controlling the governor pressure ofgas pressure burner▶ Inspecting the pressure gauge daily▶ Monitoring the pressure inside of piping or container▶ Measuring the pressure when the relief valve is open
or closed▶ Measuring the pressure inside of clean room
▶ Controlling the pressure inside of tank

Leak Measurement▌ Gauge pressure decay method▶ Leak test of factory piping▌ Gauge pressure (hydraulicpressure) decay method

Flow Measurement▌ Measuring orifice flow

▶ Checking blockage of piping▌ Measuring air velocity and flow rate

through pitot tube

Dimension Measurement▌ Measuring flatness with flow ratemicrometer▌ Measuring with back pressure(differential pressure) micrometer■ Introduction of Features
Comparators
 8 comparators can be programed. (8 channels)
 The comparators output 5 levels (HH, HI, GO, LO, LL) of contact
signals.
 Relay contact output.
 The LEDs (P1、P2、P3) corresponding to the selected channel light up.

Auto-Zero With the current value set to zero, relative pressurechanges can be measured.
 Convenient to check pressure variation.

Peak Value Hold and Bottom Value Hold The peak value in pressure rise and the bottom value in pressure drop can be held.

Peak Value HoldBottom Value Hold■ ModelCategory

DM-3700(A.B C.D)

A
B

A, B and C in the model notation
are mandatory.

DM-3700(100KD.N.VA)- Differential pressure 100 kPa

C- Internal pressure sensor

BCD

External pressure sensor

L1
LX1
LX5
LX10
D1
D2
F1F2

External pressure sensor with drip-proof(Gauge pressure only) *13 m (Standard)
1m5m
10 m
Open collector
TTL output
Analog output F.S. 5 V
Analog output F.S. 10 V

Q

Change of the minimum display digit(Only for the ranges that include 1)

Mounting Brackets

P

Mounting Brackets

Power Cable

VA
VE

125 VAC 3m power cable

Display Digits *2

DInternal pressure sensor (Standard)

S2Analog Output- 125 VAC with 3 m power cableStandardSensor

Description
See the “Pressure Ranges” below.

N
S1

Sensor Cable Length

Example of model notation:■ Pressure Ranges

Code

Pressure Range(Standard accessory)

VK

250 VAC 2 m power cable
250 VAC 2 m power cable(Mandatory for Chinese customers)*1. Accuracy of S2 model: ±0.25％ of F.S.±1digit.
*2. The analog output is amplified to 10 V. However, not available for
V100KG and X100KG.

Range
CodeSensor

Measurement
Range

Range
CodeSensor

2PD

Differential pressure

5PD

Differential pressure

1KD0 to 200 Pa

5MG

Gauge pressure

0 to 5 MPa

0 to 500 Pa

10MG

Gauge pressure

0 to 10 MPa

Differential pressure

0 to 1 kPa

20MG

Gauge pressure

0 to 20 MPa

2KD

Differential pressure

0 to 2 kPa

50MG

Gauge pressure

0 to 50 MPa

5KDDifferential pressure

0 to 5 kPa

V2PD

Vacuum differential pressure-200 Pa to 0

10KDDifferential pressure

0 to 10 kPa

V5PD

Vacuum differential pressure-500 Pa to 0

20KDDifferential pressure

0 to 20 kPa

V1KD

Vacuum differential pressure-1 kPa to 050KD

Differential pressure

0 to 50 kPa

V2KD

Vacuum differential pressure-2 kPa to 050KG

Gauge pressure

0 to 50 kPa

V5KD

Vacuum differential pressure-5 kPa to 0100KD

Differential pressure

0 to 100 kPa

V10KD

Vacuum differential pressure-10 kPa to 0100KG

Gauge pressure

0 to 100 kPa

V20KD

Vacuum differential pressure-20 kPa to 0200KG

Gauge pressure

0 to 200 kPa

V50KD

Vacuum differential pressure-50 kPa to 0500KG

Gauge pressure

0 to 500 kPa

V50KG

Vacuum gauge pressure-50 kPa to 01MG

Gauge pressure

0 to 1 MPa

V100KD

Vacuum differential pressure-100 kPa to 02MG

Gauge pressure

0 to 2 MPa

V100KG*1

Vacuum gauge pressure-100 kPa to 0

Pressure/Vacuum

Measurement
Range

Range
CodeSensor

Measurement
Range

Range
CodeSensor

Measurement
Range

X2PD

Differential pressure

0 to ±200 Pa

X50KD

Differential pressure

0 to ±50 kPa

X5PD

Differential pressure

0 to ±500 Pa

X50KG

Gauge pressure

0 to ±50 kPa

X1KD

Differential pressure

0 to ±1 kPa

X100KD

Differential pressure

0 to ±100 kPa

X2KD

Differential pressure

0 to ±2kPa

X100KG*1

Gauge pressure

0 to ±100 kPa

X5KD

Differential pressure

0 to ±5kPa

X200KG

Gauge pressure-100 to 200 kPa

X10KD

Differential pressure

0 to ±10kPa

X500KG

Gauge pressure-100 to 500 kPa

X20KD

Differential pressure

0 to ±20kPa*1 Option Q "Display Digits" is not available. Use thedifferential pressure model.

Since the lowest calibration point for all the Cosmo products is -90 kPa, the guaranteed range is down to -90 kPa as well.
The contents in this document are as of April 2023. The specifications are subject to change without notice.

Cosmo Instruments Co., Ltd.

2974-23 Ishikawa, Hachioji, Tokyo 192-0032 Japan
China: Cosmo (Shanghai) Trading Co., Ltd.
+86-(0)21-6575-6880
Shanghai, Tianjin, Guangzhou, Chongqing, Changchun, and Wuhan
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+82-(0)32-623-6961
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+886-(0)2-2707-3131+60-(0)3-51626677
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+62-(0)21-89328750
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+84-(0)24-37876085

http://www.cosmo-k.co.jp/
Phone: +81-(0)42-642-1357 Fax: +81-(0)42-646-2439
India: Cosmo Instruments India Pvt. Ltd. Head Office+91-(0)124-421-0946
South Zone Regional Office, Chakan Office, Chennai Office, Gujarat Office
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+1-248-488-2580
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