Riken Keiki RP-D58 AC User manual

PT9E-0128
Fixed type Explosion-Proof Pump Unit
RP-D58・AC
RP-D58・DC
Operating Manual

RP-D58 Series
<Contents>
1. Outline of the Product........................................................................................................... 1
1-1. Preface............................................................................................................................ 1
1-2. Purpose of use ................................................................................................................ 1
1-3. Definition of DANGER, WARNING, CAUTION, and NOTE ............................................. 2
1-4. Method of confirmation for Standards and Explosion proof specification ........................ 2
2. Important Notices on Safety ................................................................................................. 3
2-1. Danger cases .................................................................................................................. 3
2-2. Warning cases................................................................................................................. 4
2-3. Precautions ..................................................................................................................... 5
2-4. Safety Information ........................................................................................................... 6
3. Product Components............................................................................................................ 9
3-1. Main unit and standard accessories ................................................................................ 9
3-2. Names and functions for each part.................................................................................. 11
3-3. Block diagram.................................................................................................................. 14
4. How to Use........................................................................................................................... 16
4-1. Before using the pump unit.............................................................................................. 16
4-2. Precautions for installation points.................................................................................... 16
4-3. Precautions for system designing.................................................................................... 17
4-4. How to install ................................................................................................................... 19
4-5. How to wire...................................................................................................................... 21
4-6. How to tube ..................................................................................................................... 29
5. How to Operate .................................................................................................................... 30
5-1. Preparation for start-up ................................................................................................... 30
5-2. Basic operating procedures............................................................................................. 30
5-3. How to start the pump unit .............................................................................................. 31
5-4. How to exit....................................................................................................................... 32
6. Alarm Activation.................................................................................................................... 33
7. Maintenance......................................................................................................................... 34
7-1. Maintenance intervals and items ..................................................................................... 34
7-2. Parts replacement ........................................................................................................... 40
8. Storage, Relocation and Disposal ........................................................................................ 41
8-1. Procedures to store the pump unit or leave it for a long time .......................................... 41
8-2. Procedures to relocate the pump unit or use it again ...................................................... 41
8-3. Disposal of products........................................................................................................ 41
9. Troubleshooting.................................................................................................................... 42
10. Product Specifications........................................................................................................ 43
10-1. List of specifications ...................................................................................................... 43
10-2. Detection principle......................................................................................................... 48

1 Outline of the Product 1-1. Preface
RP-D58 Series - 1 -
1
Outline of the Product
1-1. Preface
Thank you for choosing our fixed-type explosion-proof pump unit RP-D58 series. Please check that the
model number of the product you purchased is included in the specifications on this manual.
This manual explains how to use the pump unit and its specifications. It contains information required for
using the pump unit properly. Not only the first-time users but also the users who have already used the
product must read and understand the operating manual to enhance the knowledge and experience before
using the pump unit.
1-2. Purpose of use
This pump unit is a suction pump unit for attracting the gas revealed into the atmosphere and sending
into a gas detector head.
This pump unit is used combining the indicator/alarm unit and the gas detector head if needed.
The pump unit can be used by itself, in order to function gas detector and gas detector head and low
flow rate alarm, please use it pairing a directions alarm part. Read also the operating manual of the
indicator/alarm unit.
Please fully understand the features of the detector head before using it, so that it can be used properly.
The pump unit draws abnormalities in the air caused by presence of gases or other reasons (leak) with
the built-in pump.
The pump unit has a built-in low flow rate detection function and can trigger a fault alarm when the flow
rate inside the tubing drops below a fixed rate.
The pump unit has two types of power supply specifications.
RP-D58·AC AC power specification 100 - 110 VAC
RP-D58·DC DC power specification 24 VDC

1 Outline of the Product 1-3. Definition of DANGER, WARNING, CAUTION, and NOTE
RP-D58 Series - 2 -
1-3. Definition of DANGER, WARNING, CAUTION, and
NOTE
DANGER This message indicates that improper handling may cause death or serious
damage on health or assets.
WARNING This message indicates that improper handling may cause serious damage on
health or assets.
CAUTION This message indicates that improper handling may cause minor damage on
health or assets.
NOTE This message indicates advice on handling.
1-4. Method of confirmation for Standards and
Explosion proof specification
This instrument has some specification depends on standard and explosion proof certificate. Please
confirm the detector specification before using. Please refer Declaration of Conformity that is at the end of
this manual if you have CE marking type.You can confirm instrument specification to see name plate as
follows.
ATEX, CE marking type name plate TIIS type name plate
(DC power specification only) (AC/DCpowerspecification)
ITRI type name plate
(AC/DC power specification)
CE marking
Ex marking TIIS certificate
ITRI certificate

2 Important Notices on Safety 2-1. Danger cases
- 3 - RP-D58 Series
2
Important Notices on
Safety
2-1. Danger cases
DANGER
<About explosion-proof>
The window plate material is a polycarbonate resin. Do not use organic solvents and alkali types
(liquid or vapor). It may cause the color and shape of the window plate to be changed.
The flameproof joints are not intended to be repaired.
Do not open the lid when applying current. The lid may be opened after five minutes or more
after power off.
Do not attempt to repair the pump unit by the user.
For the lid, use hexagon socket head bolts specified by RIKEN KEIKI.
The drive lid must be closed during use (except during maintenance).

2 Important Notices on Safety 2-2. Warning cases
RP-D58 Series - 4 -
2-2. Warning cases
WARNING
Power supply
Before turning on the pump unit, always check that the voltage is properly applied. Do not use an
unstable power supply because it may cause malfunctions.
Need of grounding circuit
Do not cut the grounding circuit or disconnect the wire from the grounding terminal.
Defects in protective functions
Before starting the pump unit, check the protective functions for defects. When seeming defects are
found in the protective functions, such as protective grounding, do not start the pump unit.
External connection
Before connecting the pump unit to the external control circuit, securely connect it to a protective
grounding circuit.
Do not use the pump unit in the presence of silicone or sulfides.
The flow sensor is made of metal porous sintered alloy permeated with an oxidation catalyst.
If silicon or sulfide compounds are accumulated on the surface of porous sintered alloy, the area of
the gas sensing part becomes smaller, which may result in serious deterioration of its sensitivity.

2 Important Notices on Safety 2-3. Precautions
- 5 - RP-D58 Series
2-3. Precautions
CAUTION
Do not use a transceiver or other equipment near the pump unit.
Radio wave from a transceiver near the pump unit or its cables may disturb operations. If a
transceiver is used, it must be used in a place where it disturbs nothing.
To restart the pump unit, wait for five seconds or more before doing it.
Restarting the pump unit in less than five seconds may cause errors.
Do not disassemble/modify the pump unit, or change the settings if not necessary.
Disassembling/modifying the pump unit will invalidate the warranty of the performance. Changing
the settings without understanding the specifications may cause alarm malfunctions. Please use the
pump unit properly in accordance with the operating manual.
Avoid applying organic solvents and others to the window plate for a long time.
The window plate material is a polycarbonate resin. When organic solvents (liquid or
highly-concentrated vapor) and others are applied to the plate for a long time, its color and shape
may be changed.
Never fail to perform a regular maintenance.
A regular maintenance must be performed to ensure safety. Continuing to use the pump unit without
performing maintenance will deteriorate the sensitivity of the sensor, thus resulting in inaccurate gas
detection.
Do not use the pump unit under an inert gas atmosphere.
The flow rate cannot be measured correctly under an inert gas atmosphere such as He.

2 Important Notices on Safety 2-4. Safety Information
RP-D58 Series - 6 -
2-4. Safety Information
Necessary information for explosion proof construction of Model RP-D58・AC／RP-D58・DC.
This product is an explosion-proof pump which is basically installing fixed place.
There is one point of contact and works by trouble.
<ATEX Specifications>
Technical Data
(Protection Method) Flameproof enclosure “d”
(Group) II
(Category) 2G
(Type of Protection and Marking code) Ex db ⅡB+H2 T4
(Equipment Protection Level) Gb
(Ambient Temperature) -20C to +53C
(Electrical Data)
Supply voltage : 24 Vdc(Typ.)
Relay (Contact output) : DC30V or AC250V 0.5A
(Applicable Standard) EN 60079-0 : 2012+A11:2013，EN 60079-1: 2014
Installation
【RP-D58･DC】
＋
－
＋
－
Hazardous Location
(Zone 1)
Nonhazardous Location
GasDetector(GD‐D58・DC)
←→
InstallationDiagram(RP‐D58・DC)
Cable
Power
（
RP-D58・DC
）

2 Important Notices on Safety 2-4. Safety Information
- 7 - RP-D58 Series
<ITRI Specifications>
Technical Data
(Protection Method) Flameproof enclosure
(Explosion-proofclass) Exd ⅡB+H2 T4 Gb X
(AmbientTemperature) TypeAC:-20C to 50C
Type DC: -20C to 53C
(Electrical Data)
Supply voltage : Type AC: AC100～110V 50/60Hz 120mA
Type DC: DC24V 360mA
Contact output : AC250V 0.5A(Load resistance)
DC30V 0.5A(Loadresistance)
(Applicable Standard) JNIOSH-TR-NO. 43(2008)
Installation
【RP-D58･AC】 【RP-D58･DC】
RLY RLY
ACPower
L
N
PE
Pump(RP‐D58・AC)
Hazardous Location
(Zone1)
Nonhazardous Location
InstallationDiagram
RLY RLY
DCPower
DC24V
＋
－
Pump(RP‐D58・DC)
Hazardous Location
(Zone1)
Nonhazardous Location
InstallationDiagram

2 Important Notices on Safety 2-4. Safety Information
RP-D58 Series - 8 -
<TIIS Specifications>
Technical Data
(Protection Method) Flameproof enclosure
(Explosion-proofclass) Exd ⅡB+H2 T4
(AmbientTemperature) TypeAC:-20C to 50C
Type DC: -20C to 53C
(Electrical Data)
Supply voltage : Type AC: AC100～110V 50/60Hz 120mA
Type DC: DC24V 360mA
Contact output : AC250V 0.5A(Load resistance)
DC30V 0.5A(Loadresistance)
(Applicable Standard) JNIOSH-TR-NO. 43(2008)
Installation
【RP-D58･AC】 【RP-D58･DC】
RLY RLY
ACPower
L
N
PE
Pump(RP‐D58・AC)
Hazardous Location
(Zone1)
Nonhazardous Location
InstallationDiagram
RLY RLY
DCPower
DC24V
＋
－
Pump(RP‐D58・DC)
Hazardous Location
(Zone1)
Nonhazardous Location
InstallationDiagram

3 Product Components 3-1. Main unit and standard accessories
- 9 - RP-D58 Series
3
Product Components
3-1. Main unit and standard accessories
<Main Unit> (including cable glands)
Unit: mm
Gas outlet
Display
Gas inlet
Cable connecting port
for pump power
Cable connecting port
4-φ7
(for M6)

3 Product Components 3-1. Main unit and standard accessories
RP-D58 Series - 10 -
<Standard Accessories>
Operating manual
Dedicated handling lever ......................... 1 lever
Dedicated control key .............................. The control key quantity depends on the number of pump unit
to be delivered.
1 - 10 units 1 key
11 - 20 units 2 keys
21 - 50 units 3 keys
Over 51 units 4 keys
Hex key wrench ....................................... Same number of wrenches as with the test certificates will be
provided.
Dust removal filter with flow monitor ........ 1 filter
NOTE
The dedicated control key is for maintenance. It is not used for detection mode.
Keep it handy for use.
CAUTION
Use the supplied dedicated control key to operate the pump unit. If products other than these
accessories are used, key operations cannot be accepted properly.
The control key is made of an extremely strong magnet. Keep it away from a credit card, ID card,
or other magnetic product because stored data may be destroyed.

3 Product Components 3-2. Names and functions for each part
- 11 - RP-D58 Series
3-2. Names and functions for each part
<Display>
(1) MENU/ESC key * Used to enter the maintenance mode.
It is also used to cancel in a specific mode.
(2) SET/ALM key * It is used for value confirmation and so on in a specific
mode.
(3) ▲key * Used to switch menus or change a value (UP).
(4) ▼key * Used to switch menus or change a value (DOWN).
(5) Power lamp
Power lamp.
Detection mode: It lights up in green.
Maintenance mode: It blinks in green.
(6) Fault lamp Fault lamp. It lights up in yellow when an abnormality is
detected in the pump unit.
(7) Status display Displays the operating status.
* This is not typically used by the user.
NOTE
The nameplate on the front side of the pump unit shows the precautions to be taken for explosion-proof
performances. Read these precautions as well as "2. Important Notices on Safety."
(7) Status display
(5) Power lamp (6) Fault lamp
(1) MENU/ESC key
(2) SET/ALM key (4) ▼key
(3) ▲key

3 Product Components 3-2. Names and functions for each part
RP-D58 Series - 12 -
<Inside of the main unit> (Electric circuit section)
(1) Terminal plate (for power supply) Power input terminal plate (RP-D58·AC: 3-pole,
RP-D58·DC: 2-pole).
(2) Terminal plate (for transmission) Terminal plate for transmission.
(3) Power switch Power switch of the pump unit (RP-D58·AC only).
(4) Grounding terminal Terminal for grounding (M4 x 6).
(5) Fuse Main power fuse (RP-D58·AC only).
NOTE
Open the electric circuit lid.
Remove the electric circuit lid and display unit to find behind them the electric circuit section shown in
the figure above.
Power input terminal plates are RP-D58·AC: 3-pole and RP-D58·DC: 2-pole.
A fter use, closely tighten the lid until the thread is no longer seen (clockwise 8 rotations +1/4 rotation
or more) and the "TOP" marking faces upward. Tighten the hexagon socket set screw with a tightening
torque of 107.8±12.7 N・cm.
(1) Terminal plate
(for power supply)
(2) Terminal plate
(for transmission)
(3) Power switch
(4) Grounding terminal
(5) Fuse
* The figure above shows
RP-D58·AC.
Display unit
Electric circuit lid
Open
Close
Specialized tool (Option)
Hexagon socket set screw

3 Product Components 3-2. Names and functions for each part
- 13 - RP-D58 Series
<Inside of the main unit> (Drive section)
(1) Flow sensor Sensor for detection of low flow rate.
(2) Pump Sample draw pump.
NOTE
Loosen the drive lid and the hexagon socket head bolts on the
four corners.
Remove the drive lid to find the drive section shown in the
figure above.
The bolt with the hexagon socket must use the stainless
steel material of property class "A2-70".
Grease specified by RIKEN KEIKI : BARRIERTA JFE 552
(manufactured by NOK KLUBER)
If you can not prepare the specified grease, use one that
meets the following requirements.
1. Material does not harden due to deterioration
2. Volatile solvent-free
3. Material does not cause corrosion at the surface
4. Silicon-free
5. Validation of suitability depends on the specifications of grease manufacturer
Drive lid
(1) Flow sensor (2) Pump

3 Product Components 3-3. Block diagram
RP-D58 Series - 14 -
3-3. Block diagram
<Electric Diagram>
RP-D58·AC
Controller
(CPU)
POWER OUTPUT (24 VDC)
AC/DC converter
Display
(POWER) (FAULT)
Seven-segment LED
(four-digit)
Magnetic operation part
(MENU/ESC) (▲) (▼) (SET)
Flow sensor
POWER INPUT (100-110 VAC)
Power supply part Pump

3 Product Components 3-3. Block diagram
- 15 - RP-D58 Series
<Electric Diagram>
RP-D58·DC
Controller
(CPU)
Display
(POWER) (FAULT)
Seven-segment LED
(four-digit)
Magnetic operation part
(MENU/ESC) (▲) (▼) (SET)
Flow sensor
POWER INPUT (24 VDC)
Power supply part Pump

4 How to Use 4-1. Before using the pump unit
RP-D58 Series - 16 -
4
How to Use
4-1. Before using the pump unit
Not only the first-time users but also the users who have already used the product must follow the operating
precautions.
Ignoring the precautions may damage the pump unit, resulting in inaccurate gas detection.
4-2. Precautions for installation points
Do not install the pump unit in a place with vibrations or shocks.
The pump unit consists of sensitive electronic parts. The pump unit must be installed in a stable place
without vibrations or shocks and it cannot drop.
Do not install the pump unit in a place exposed to water, oil or chemicals.
When selecting installation points, avoid a place where the pump unit is exposed to water, oil or chemicals.
Do not install the pump unit in a place where the range of operating temperatures is exceeded.
The pump unit must be installed in a stable place where the operating temperature is maintained and do not
change suddenly.
＜ATEX Specifications＞ RP-D58・DC：-20℃～+53℃
＜ITRI Specifications＞RP-D58・AC：-20℃～+50℃／RP-D58・DC：-20℃～+53℃
＜TIIS Specifications＞RP-D58・AC：-20℃～+50℃／RP-D58・DC：-20℃～+53℃
Do not install the pump unit in a place exposed to direct sunlight or sudden changes in the temperature.
When selecting installation points, avoid a place where it is exposed to direct sunlight or radiant heat
(infrared rays emitted from a high-temperature object), and where the temperature changes suddenly.
Condensation may be formed inside the pump unit, or the detector head cannot adjust to sudden changes
in the temperature.
CAUTION
This pump unit is a precision device. Because the pump unit may not provide the specified
performance in some places (environments), check the environment in the installation point, and
then take appropriate actions if necessary.

4 How to Use 4-3. Precautions for system designing
- 17 - RP-D58 Series
Keep the pump unit (and its cables) away from noise source devices.
When selecting installation points, avoid a place where high-frequency/high-voltage devices exist.
Do not install the pump unit in a place where maintenance of the detector head cannot be performed or
where handling the pump unit involves dangers.
Regular maintenance of the pump unit must be performed.
Do not install the pump unit in a place where the machinery must be stopped when maintenance is
performed in its inside, where parts of the machinery must be removed to perform maintenance, or where
the pump unit cannot be removed because tubes or racks prevent access to it. Do not install the pump unit
in a place where maintenance involves dangers, for example, near a high-voltage cable.
Do not install the pump unit in machinery which is not properly grounded.
Before installing the pump unit in machinery, the machinery must be grounded properly.
Do not install the pump unit in a place where other gases exist around it.
The pump unit must not be installed in a place where other gases exist around it.
4-3. Precautions for system designing
Using a stable power supply
The external output and alarm contact of the pump unit may be activated when the power is turned on,
when momentary blackout occurs, or while the system is being stabilized. In such cases, use a UPS
(uninterrupted power supply), or take appropriate actions on the receiving side of output signals.
The pump unit must be provided with the following power supply.
Power supply voltage RP-D58·AC: 100 - 110 VAC ±10%, 50/60Hz: Terminal voltage of the pump unit
RP-D58·DC: 24 VDC
10% : Terminal voltage of the pump unit
Allowed time of
momentary blackout
RP-D58·AC:
Less than approx. 200 msec
(To recover from the momentary
blackout for 200 milliseconds or more,
restart the pump unit.)
RP-D58·DC:
Less than approx. 10 msec
(To recover from the momentary
blackout for 10 milliseconds or more,
restart the pump unit.)
Example of actions
To ensure continuous operation and
activation, install an UPS outside the
pump unit.
Others
Do not use it with a power supply of
large power load or high-frequency
noise.
Example of actions
Use a line filter to avoid the noise
source if necessary.
CAUTION
An unstable power supply and noise may cause malfunctions or false alarms.
The descriptions in this section must be reflected on the designing of a system using the pump unit.

4 How to Use 4-3. Precautions for system designing
RP-D58 Series - 18 -
Introducing protective measures against lightning
If cables are installed outside the factory/plant, or if internal cables are installed in the same duct as the
cables coming from outside the factory/plant, "lightning" will cause problems. Because lightning acts as a
large emission source while cables act as a receiving antenna, devices connected to the cables may be
damaged.
Lightning cannot be prevented. Cables installed in a metal conduit or under the ground cannot be
completely protected from inductive lightning surge caused by lightning. Although complete elimination of
disasters caused by lightning is impossible, the following protective measures can be taken.
Protection against
lightning
Take appropriate measures in accordance with the importance of the facilities and
the environment.
Provide protection by a lightning arrester (cable arrester).
(Although inductive lightning surge can be transmitted through the cable, it is
prevented by installing a lightning arrester before the field devices and central
processing equipment. For information on how to use a lightning arrester,
please contact the manufacturer.）
Grounding In addition to lightning, there are more sources of surge noise. To protect units from
these noise sources, the units must be grounded.
* The lightning arrester has a circuit to remove a surge voltage which damages field devices, so that signals
may be attenuated. Before installing a lightning arrester, verify that it works properly.