Azbil PREX3000 User manual

OM2-5220-1101
PREX3000 Pneumatic
Dierential Pressure Transmitter
Model KDP
User's Manual

NOTICE
While the information in this manual is presented in good faith and
believed to be accurate, Azbil Corporation disclaims any implied
warranty of merchantability or fitness for a particular purpose and
makes no express warranty except as may be stated in its written
agreement with and for its customer.
In no event shall Azbil Corporation be liable to anyone for any indirect,
special or consequential damages. is information and specications
in this document are subject to change without notice.
© 1998-2022 Azbil Corporation. All Rights Reserved.

i
Table of Contents
Chapter 1. Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Chapter 2. General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2-1. Inspection upon delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2-2. Checking the specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2-3. Transporting the instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2-4. Storing the instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2-5. Place of installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2-5-1. Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2-5-2. Atmosphere . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2-5-3. Vibration and shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2-6. Pressure application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Chapter 3. Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
3-1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3-2. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3-2-1. Standard specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3-2-2. Max. working pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3-2-3. Optional specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3-3. Model number table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
3-3-1. KDP11/22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
KDP33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
KDP44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
KDP61/62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
KDP71/72 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
KDP81/82 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3-4. Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
3-4-1. Nozzle and flapper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
3-4-2. Pilot relay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
3-4-3. Feedback mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3-4-4. Meter bodies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Chapter 4. Operating Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

ii
Chapter 5. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5-1. Place of installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
5-2. Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
5-3. Bracket and bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
5-4. Installation of regular-type meter body. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5-5. Installation of model 61/62 and 71/72 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
5-6. Installation of remote-sealed diaphragm type meter body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
5-7. Mounting attitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
5-8. Air supply connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
5-9. Pressure piping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
5-9-1. Model 11/22/33/44/81/82 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
5-9-2. Connection of flange type meter body to process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
5-10. Elevation and suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
5-10-1. Definitions of elevation and suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
5-10-2. Setting of elevation / suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Chapter 6. Operation Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6-1. Differential pressure (Flow) transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
6-2. Liquid level transmission. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Chapter 7. Inspection and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7-1. Check for leakage from piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
7-2. Maintaining the meter body and piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
7-2-1. Blow procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7-2-2. Cleaning of meter body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
7-2-3. Notes for use in freezing weather. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Chapter 8. Service and Unit Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
8-1. To replace the pilot relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
8-2. To service the pilot relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Chapter 9. Calibration and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
9-1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
9-2. Calibration of differential pressure transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
9-3. Setting of elevation / suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
9-3-1. Setting of elevation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
9-3-2. Setting of Suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

1
Chapter 1. Scope
This manual covers the operation instructions for the PREX3000 Differential Transmitter. Be
sure to read this manual before using the instrument.
This manual has been written for instruments with the standard specifications. Note that some
items may differ for those instruments with modified specifications.

2

3
Chapter 2. General Precautions
2-1. Inspection upon delivery
Upon receiving the instrument, immediately check it for any damage which it might have
sustained while being shipped. If any signs of damage to the instrument are found or if
there are any missing accessories, immediately notify the transport company and your Azbil
Corporation agent.
2-2. Checking the specifications
The main specifications are given on the nameplate fixed on the casing of the instrument.
Check that the specifications conform with those in the model number table. (When making
any enquires regarding the instrument, please state the model number and serial number.)
2-3. Transporting the instrument
To prevent damage to the instrument when it is being moved to the place of installation, it is
best if it is packed as it was shipped from the factory.
2-4. Storing the instrument
(1) Store the instrument in a place where the instrument is not exposed to rain or other
adverse weather or to mechanical vibration or shocks. Although the “specification” storing
temperature range of the instrument is -40°C to +85°C (that of the instrument with
indicator is 0°C to +55°C), it is most recommendable to store the instrument at normal
temperature and normal humidity (approximately 25°C and 65% RH).
(2) It is most recommendable to store the instrument in the packing in the state in which the
instrument is delivered to you.
(3) When storing the instrument which has been used, be sure to drain out liquid from both
high and low pressure sides of the meter body and thoroughly clear the instrument.
(4) When the measured fluid is toxic, handle the instrument carefully even after the pressures
are released from the instrument.

4
2-5. Place of installation
To maintain the instrument’s performance and reliability for a long period, pay attention to
the following points when selecting a place of installation for the instrument.
2-5-1. Ambient temperature
(a) Select a place where temperature change is minimal.
(b) When it is unavoidable to install the instrument in a place where it is subjected to
radiation from a source of heat (such as the process plant itself), provide a heat insulator
and select a well ventilated location so that the ambient temperature of the instrument is
made as low as possible.
(c) If there is a possibility of the measured fluid freezing, provide a heat insulator or take
appropriate measures to prevent freezing.
2-5-2. Atmosphere
Avoid, as much as possible, installing the instrument in a corrosive atmosphere.
2-5-3. Vibration and shock
Select a place where the instrument is not subjected to mechanical vibration or shock.
2-6. Pressure application
Regarding application of pressures to the instrument, pay attention to the following items:
(1) The instrument is delivered with the clamping-bolts of the adaptor flanges untightened.
Be sure to tighten them before using the instrument.
(2) Never apply pressures higher than the rated pressures. (See "3-2 : Specifications" on page
3-2.)
(3) Be sure to completely release the pressures form the instrument before tightening or
loosening its clamping-bolts.

5
Chapter 3. General
3-1. General
The PREX3000 is a pneumatic transmitter which converts a process differential-pressure or a
pressure into pneumatic signals (20 to 100 kPa {0.2 to 1.0 kgf/cm2}. The transmitter consists of
a transmitting section and a detecting section (meter body).
Transmitting section
Detecting section
(Meter body)
Fig. 3-1. Overview of PREX3000 transmitter

6
3-2. Specifications
3-2-1. Standard specifications
Measuring range (continuously adjustable)
Range
Regular type
Flange
type
Remote
seal
type
Measuring range
---
High static
pressure
type
High ΔP KDP11 KDP81 KDP61 KDP71 0-25 to 0-500 kPa
{0-2500 to 0-50000 mmH2O}
Medium ΔP KDP22 KDP82 KDP62 KDP72 0-2.5 to 0-53.9 kPa
{0-250 to 0-5500 mmH2O}
Low ΔP KDP33 --- --- --- 0-0.5 to 0-6 kPa
{0-50 to 0-600 mmH2O}
Very low ΔP KDP44 --- --- --- 0-0.1 to 0-1.2 kPa
{0-10 to 0-120 mmH2O}
Process connection
KDP11/22/33/44, KDP61/62 (Flange); Rc1/2 (PT1/2 internal thread)
KDP81/82; Rc1/4 (PT1/4 internal thread)
KDP71/72 Flange
Extended diaphragm type: JIS10K, 20K-100A (RF) equivalent
ANSI150, 300-4B (RF) equivalent
Flash diaphragm type: JIS 10K, 30K-80A (RF) equivalent
ANSI150, 300-3B (RF) equivalent
Air supply connection
Rc1/4 (PT1/4) or 1/4NPT internal thread
Air supply pressure
140±14 kPa {1.4±0.14 kgf/cm2}
Output
20-100 kPa {0.2-1.0 kgf/cm2}

7
External load
ID 4 mm × Length 3 m + 20 cc or over
Air supply capacity
20 L/minute(N) or over, with 6.7 kPa {50 mmHg} change
Air consumption
5 L/minute(N) or less (when balanced at output 100%)
Accuracy
KDP11; ±0.5% F.S. (For span 50 to 500 kPa {5000 to 50000 mmH2O})
±0.75% F.S. (For span 25 to less than 50 kPa {2500 to less than 5000 mmH2O})
KDP22; ±0.5% F.S. (For span 5 to 53.9 kPa {500 to 5500 mmH2O})
±0.75% F.S. (For span 2.5 to less than 5 kPa {250 to less than 500 mmH2O})
KDP33; ±0.5% F.S. (For span 1.0 to 6 kPa {100 to 600 mmH2O})
±1.0% F.S. (For span 0.5 to less than 1 kPa {50 to less than 100 mmH2O})
KDP44; ±0.5% F.S. (For span 0.2 to 1.2 kPa {20 to 120 mmH2O})
±1.0% F.S. (For span 0.1 to less than 0.2 kPa {10 to less than 20 mmH2O})
KDP61/71/81; ±0.5% F.S. (For span 50 to 500 kPa {5000 to 50000 mmH2O})
±1.0% F.S. (For span 25 to less than 50 kPa {2500 to less than 5000
mmH2O})
KDP62/72/82; ±0.5% F.S. (For span 5 to 53.9 kPa {500 to 5500 mmH2O})
±1.0% F.S. (For span 2.5 to less than 5 kPa {250 to less than 500 mmH2O})
Dead band
0.1% F.S.
Damping (KDP44)
Time constant: Minimum 2 sec. or less, Maximum 25 sec. or over, continuously variable.

8
Operating pressure range
Model Cover mate
Carbon steel, SUS Monel PVC
KDP11/22 -50 kPa to +10 MPa
{-0.5 to +100 kgf/cm2}
-50 kPa to +10 MPa
{-0.5 to +100 kgf/cm2}
-10 kPa to +1.5 MPa
{-0.1 to +15 kgf/cm2}
KDP33 -50 kPa to +3.5 MPa
{-0.5 to +35 kgf/cm2}
-50 kPa to +3.5 MPa
{-0.5 to +35 kgf/cm2}
-10 kPa to +1 MPa
{-0.1 to +10 kgf/cm2}
KDP44 -1.5 kPa to +0.05 kPa
{-150 to +5 mmH2O} --- ---
-50 kPa to maximum flange rated pressure
JIS10K: up to 1.4 MPa {14 kgf/cm2}
JIS30K: up to 5.1 MPa {51 kgf/cm2}
ANSI150: up to 1.4 MPa {14 kgf/cm2}
ANSI300: up to 3.7 MPa {37 kgf/cm2}
-10 kPa to +1.5 MPa
{-0.1 to +15 kgf/cm2}
KDP71/72 ---
KDP81/82 -50 kPa to +42 MPa
{-0.5 to +420 kgf/cm2}--- ---
Note) Refer to the annexed table regarding max. working pressure on flange and remote seal type.
Operating temperature
Meter body (process fluid): -40 to +120°C
Transmitter (ambient): -30 to +80°C
PVC cover: 0 to 55°C
Operating humidity
10 - 90% RH
Construction
Dustproof and waterproof, meets
IEC IP54, NEMA TYPE 3R,
JIS F 8001 Class 3 splashproof, and
JIS C 920 rainproof specifications

9
Materials
Meter body cover -Carbon steel (SF45A), SUS316... (KDP11/22/33/44/61/62/81/82)
Monel, PVC... (KDP11/22/33/61/62)
Flange - Carbon steel (IF45A), SUS304... (KDP61/62/71/72)
Measuring element: SUS316 (diaphragm: SUS316L), SUS316L, Monel, Tantalum
Wet part gasket: Teflon
Centerbody: SUS304 (KDP44 is Al)
Transmitter case: Aluminum alloy
Capillary tube length
2, 3, 5 m (remote seal type) SUS316
Mounting
KDP11/12...................On vertical or horizontal 2-inch pipe
KDP33/44..................Horizontal 2-inch pipe
KDP61/62..................Directly flange mounted to process flange
KDP71/72..................Directly flange mounted to process flange
(Transmitter body is mounted on vertical or horizontal 2-inch pipe)
Net weight
KDP11/22...................Approx. 8kg
KDP33........................Approx. 14.6 kg
KDP44........................Approx. 17.5kg
KDP61/62..................Approx. 13 kg (80A - JIS 10K Flange)
KDP71/72..................Approx 17.5 kg (80A - JIS 10K Flange)
KDP81/82..................Approx. 15.0 kg
Finish
Acryl baking finish
Color: Light beige (munsell 4Y 7.2/1.3)

10
3-2-2. Max. working pressure
Note) 1. Max. working pressure depends on flange rating, flange materials and operating
temperature. Please refer to the following data. Operating range of temperature
depends on specification of transmitters.
2. In the case of the remote sealed type (KKP75, KFKB-75), max working pressure
depends on the smaller value of either 1.05 MPa or following data.
JIS JPI/ANSI
Carbon steel
6.0
5.0
4.0
3.0
2.0
1.0
0.0
Max. Working Pressure (MPa)
30K
20K
10K
6.0
5.0
4.0
3.0
2.0
1.0
0.0
Max. Working Pressure (MPa)
Class 300
Class 150
SUS304
6.0
5.0
4.0
3.0
2.0
1.0
0.0
Max. Working Pressure (MPa)
30K
20K
10K
6.0
5.0
4.0
3.0
2.0
1.0
0.0
Max. Working Pressure (MPa)
Class 300
Class 150
SUS316
6.0
5.0
4.0
3.0
2.0
1.0
0.0
Max. Working Pressure (MPa)
30K
20K
10K
6.0
5.0
4.0
3.0
2.0
1.0
0.0
Max. Working Pressure (MPa)
Class 300
Class 150
SUS316L
6.0
5.0
4.0
3.0
2.0
1.0
0.0
Max. Working Pressure (MPa)
30K
20K
10K
6.0
5.0
4.0
3.0
2.0
1.0
0.0
Max. Working Pressure (MPa)
Class 300
Class 150

11
3-2-3. Optional specifications
Suppression and elevation
Model Span
kPa {mmH2O}
Suppression (max.)
kPa {mmH2O}
Elevation (max.)
kPa {mmH2O}
KDP11 25 to 500 {2,500 to 50,000} 50 {50,000} 475 {47,500}
KDP22 2.5 to 53.9 {250 to 5,500} 53.9 {5,500} 51.4 {5,250}
KDP33 0.5 to 6 {50 to 600} 6 {600} 5.5 {550}
KDP44 0.1 to 1.2 {10 to 120} 1.2 {120} 1.1 {110}
KDP61 25 to 500 {2,500 to 50,000} 500 {50,000} 475 {47,500}
KDP62 2.5 to 53.9 {250 to 5,500} 53.9 {5,500} 51.4 {5,250}
KDP71 25 to 500 {2,500 to 50,000} 500 {50,000} 475 {47,500}
KDP72 2.5 to 53.9 {2,50 to 5,500} 53.9 {5,500} 51.4 {5,250}
KDP81 25 to 500 {2,500 to 50,000} 500 {50,000} 475 {47,500}
KDP82 2.5 to 53.9 {250 to 5,500} 53.9 {5,500} 51.4 {5,250}
Note) elevation + span ≤ maximum span
Air-set (filter and pressure regulator) (All models)
Primary pressure: 200-990 kPa {2-9.9kgf/cm2}
Secondary pressure: 140 kPa {1.4 kgf/cm2}
Filter mesh diameter: 5 microns
Connections: Rc1/4 (PT1/4) or 1/4NPT internal thread
Integral orifice (KDP11/22/33)
Flow measuring ranges
Liquid: 1.3-2,000 LN/hr water equivalent (15°C, 1atm.)
Gas: 0.04-50 Nm3/hr air equivalent (0°C, 1atm.)
High-accuracy type (KDP11/22)
KDP11: ±0.25% F.S. (For span 50 to 500 kPa {5,000 to 50,000 mmH2O})
±0.5% F.S. (For span 25 to 50 kPa {2,500 to 5,000 mmH2O})
KDP22: ±0.25% F.S. (For span 5 to 53.9 kPa {500 to 5,500 mmH2O})
±0.5% F.S. (For span 2.5 to 5 kPa {250 to 500 mmH2O})

12
3-3. Model number table
3-3-1. KDP11/22
Basic
model
no.
Cover material Measuring
element material Air
piping
connection
Pressure
unit/
Output
Options Description
HP LP HP LP
KDP11 0-25 to 0-500 kPa
{0-2,500 to 0-50,000 mmH2O}
KDP22 0-2.5 to 0-53.9 kPa
{0-250 to 0-5,500 mmH2O}
-1 Carbon steel (SF45A)
-2 SUS316
-3 Monel
-5 PVC
1 Carbon steel (SF45A)
2 SUS316
3 Monel
5 PVC
2 SUS316 (diaphragm: SUS316L)
3 Monel
4 Tantalum
8 SUS316L
2 SUS316 (diaphragm: SUS316)
3 Monel
4 Tantalum
8 SUS316L
A Rc1/4 (PT1/4) internal thread
B 1/4NPT internal thread
1kgf/cm2(or mmH2O) /
0.2 to 1.0 kgf/cm2)
2 PSI / 3 to 15 PSI
3 bar / 0.2 to 1.0 bar
4 Pa / 20 to 100 kPa
8Pa / 19.6 to 98.1 kPa
{equivalent to 0.2 to 1.0 kgf/cm2}
-X No option
-5 Elevation
-6 Suppression
-7 Air-set (KZ03)
-H High-accuracy type
-R Air-set (RA1B)

13
KDP33
Basic
model
no.
Cover material Measuring
element material Air
piping
connection
Pressure
unit/
Output
Options Description
HP LP HP LP
KDP33 0-0.5 to 0-6 kPa
{0-50 to 0-600 mmH2O}
-1 Carbon steel (SF45A)
-2 SUS316
-3 Monel
-5 PVC
1 Carbon steel (SF45A)
2 SUS316
3 Monel
5 PVC
2 SUS316 (diaphragm: SUS316L)
3 Monel
4 Tantalum
8 SUS316L
2 SUS316 (diaphragm: SUS316)
3 Monel
4 Tantalum
8 SUS316L
A PT1/4 internal thread
B 1/4NPT internal thread
1kgf/cm2(or mmH2O) /
0.2 to 1.0 kgf/cm2)
2 PSI / 3 to 15 PSI
3 bar / 0.2 to 1.0 bar
4 Pa / 20 to 100 kPa
8Pa / 19.6 to 98.1 kPa
{equivalent to 0.2 to 1.0 kgf/cm2}
-X No option
-5 Elevation
-6 Suppression
-7 Air-set (KZ03)
-R Air-set (RA1B)

14
KDP44
Basic
model
no.
Cover material Measuring
element material Air
piping
connection
Pressure
unit/
Output
Options Description
HP LP HP LP
KDP44 0-0.1 to 0-1.2 kPa
{0-10 to 0-120 mmH2O}
-1 Carbon steel (SF45A)
-2 SUS316
1 Carbon steel (SF45A)
2 SUS316
2 SUS316 (diaphragm: SUS316L)
2 SUS316 (diaphragm: SUS316)
A PT1/4 internal thread
B 1/4NPT internal thread
1kgf/cm2(or mmH2O) /
0.2 to 1.0 kgf/cm2)
2 PSI / 3 to 15 PSI
3 bar / 0.2 to 1.0 bar
4 Pa / 20 to 100 kPa
8Pa / 19.6 to 98.1 kPa
{equivalent to 0.2 to 1.0 kgf/cm2}
-X No option
-5 Elevation
-6 Suppression
-7 Air-set (KZ03)
-R Air-set (RA1B)

15
KDP61/62
Basic
model
no.
Flange & cover
material
Measuring element
material Flange
rating
Length of
extended
part of
flange
Air
piping
connection
Pressure
unit/
Output
Options Description
Measuring
side
Reference
side
Measuring
side
Reference
side
KDP61 0-25 to 0-500 kPa
{0-2,500 to 0-50,000 mmH2O}
KDP62 0-2.5 to 0-53.9 kPa
{0-250 to 0-5,500 mmH2O}
-1 Carbon steel (SF45A)
-7 SUS304
1 Carbon steel (SF45A)
2 SUS316
3 Monel
5 PVC
2 SUS316 (diaphragm: SUS316L)
3Monel (excluding extended
diaphragm type)
4Tantalum (excluding extended
diaphragm type)
8 SUS316L
2 SUS316 (diaphragm: SUS316L)
3 Monel
4 Tantalum
8 SUS316L
1Flush diaphragm type 80 mm -JIS
10K (RF) equiv. flange
2Flush diaphragm type 80 mm -JIS
30K (RF) equiv. flange
3Flush diaphragm type 3 in.
-ANSI150 (RF) equiv. flange
4Flush diaphragm type 3 in.
-ANSI300 (RF) equiv. flange
5Extended diaphragm type 100 mm
-JIS 10K (RF) equiv. flange
6Extended diaphragm type 100 mm
-JIS 30K (RF) equiv. flange
7Extended diaphragm type 4 in.
-ANSI150 (RF) equiv. flange
8Extended diaphragm type 4 in.
-ANSI300 (RF) equiv. flange
00 Flush diaphragm type
10 Extended diaphragm type: 100mm
15 Extended diaphragm type: 150mm
A PT1/4 internal thread
B 1/4NPT internal thread
1kgf/cm2(or mmH2O) /
0.2 to 1.0 kgf/cm2)
2 PSI / 3 to 15 PSI
3 bar / 0.2 to 1.0 bar
4 Pa / 20 to 100 kPa
8Pa / 19.6 to 98.1 kPa
{equivalent to 0.2 to 1.0 kgf/cm2}
-X No option
-5 Elevation
-6 Suppression
-7 Air-set (KZ03)
-R Air-set (RA1B)

16
KDP71/72
Basic
model
no.
Flange material Measuring element
material Flange
rating
Capillary
tube
length
Length of
extended
part of
flange
Air
piping
connection
Pressure
unit/
Output
Options Description
HP LP HP LP
KDP
71
0-25 to 0-500 kPa
{0-2,500 to 0-50,000 mmH2O}
KDP
72
0-2.5 to 0-53.9 kPa
{0-250 to 0-5,500 mmH2O}
-1 Carbon steel (SF45A)
-7 SUS304
1 Carbon steel (SF45A)
7 SUS304
2 SUS316 (diaphragm: SUS316L)
3Monel (excluding extended
diaphragm type)
4Tantalum (excluding extended
diaphragm type)
8 SUS316L
2 SUS316 (diaphragm: SUS316L)
3 Monel
4 Tantalum
8 SUS316L
1Flush diaphragm type 80 mm -JIS
10K (RF) equiv. flange
2Flush diaphragm type 80 mm -JIS
30K (RF) equiv. flange
3Flush diaphragm type 3 in.
-ANSI150 (RF) equiv. flange
4Flush diaphragm type 3 in.
-ANSI300 (RF) equiv. flange
5Extended diaphragm type 100 mm
-JIS 10K (RF) equiv. flange
6Extended diaphragm type 100 mm
-JIS 30K (RF) equiv. flange
7Extended diaphragm type 4 in.
-ANSI150 (RF) equiv. flange
8Extended diaphragm type 4 in.
-ANSI300 (RF) equiv. flange
02 2 m
03 3 m
05 5 m
00 Flush diaphragm type
10 Extended diaphragm type: 100mm
15 Extended diaphragm type: 150mm
A PT1/4 internal thread
B 1/4NPT internal thread
1kgf/cm2(or mmH2O) /
0.2 to 1.0 kgf/cm2)
2 PSI / 3 to 15 PSI
3 bar / 0.2 to 1.0 bar
4 Pa / 20 to 100 kPa
8Pa / 19.6 to 98.1 kPa
{equivalent to 0.2 to 1.0 kgf/cm2}
-X No option
-5 Elevation
-6 Suppression
-7 Air-set (KZ03)
-R Air-set (RA1B)