Riken Keiki SD-D58-AC User Manual (English)

Questions and Answers:

A
Angela GardnerAug 21, 2025
How to fix Riken Keiki SD-D58-AC when the power cannot be turned on?
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  parkevelynAug 21, 2025
  If the Riken Keiki Security Sensors won't power on, possible causes include incorrect wiring (connect the wiring properly), a removed terminal plate (connect it properly), power supply issues such as abnormalities or momentary blackouts (provide the rated voltage and check the UPS, power supply line filter, and insulation transformer), or cable abnormalities like disconnection or short circuit (check the wiring of the detector head and related devices).
E
Eddie TurnerAug 22, 2025
What to do if my Riken Keiki SD-D58-AC Security Sensors reading rises or drops and remains so?
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  William MossAug 23, 2025
  If the reading on your Riken Keiki Security Sensors consistently rises or drops, it could be due to drifting sensor output (perform a zero adjustment), the presence of interference gas (for information on actions, such as removal filter, please contact RIKEN KEIKI), a slow leak (take remedial measures as you would for a gas alarm), or environmental changes (perform a zero adjustment).
S
Sharon HudsonAug 25, 2025
What to do if Riken Keiki SD-D58-AC Security Sensors trigger a gas alarm despite no gas leak?
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  Angela CooperAug 25, 2025
  If your Riken Keiki Security Sensors trigger a gas alarm when there is no gas leak, it could be due to the presence of interference gas (for information on actions, such as removal filter, please contact RIKEN KEIKI), disturbance by noise (turn off and restart the detector and take appropriate measures to eliminate the noise if the issue persists), or a sudden change in the environment (take any preventive actions to eliminate these changes).
K
Kristen ColonAug 27, 2025
How to fix sensor abnormalities E-1 on Riken Keiki Security Sensors?
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  Meghan HaydenAug 27, 2025
  Sensor abnormality E-1 on Riken Keiki Security Sensors can be caused by the sensor not being connected properly (check if the sensor cable is securely fastened to the terminal plate), zero drift due to environmental changes or aging (perform the zero adjustment, and if the symptom persists, replace the sensor), or faults of the sensor (replace the sensor).
P
popekathleenAug 27, 2025
Why is my Riken Keiki Security Sensors responding slowly?
- A
  April DoyleAug 28, 2025
  A slow response from your Riken Keiki Security Sensors may be due to deteriorated sensor sensitivity. In this case, replace the sensor with a new one.
G
gonzalezdavidAug 29, 2025
What causes abnormal operations in Riken Keiki SD-D58-AC?
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  Michael LittleAug 29, 2025
  Abnormal operations in Riken Keiki Security Sensors can be caused by disturbances such as sudden surge noise. Try turning off and restarting the detector. If the problem persists, take measures to eliminate the noise.
Y
yvonnewongAug 31, 2025
How to troubleshoot low flow rate abnormality E-5 in Riken Keiki SD-D58-AC Security Sensors?
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  phaynesAug 31, 2025
  A low flow rate abnormality E-5 in Riken Keiki Security Sensors could be due to a decreasing flow rate, potentially caused by deterioration or clogging of the pump or tube (check the flow rate), or faults of the flow sensor (replace the sensor).
J
Jessica HolmesSep 2, 2025
Why is span adjustment impossible on Riken Keiki SD-D58-AC?
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  smithjenniferSep 2, 2025
  If span adjustment is impossible on your Riken Keiki Security Sensors, it might be due to an improper calibration gas concentration (use the proper calibration gas) or deteriorated sensor sensitivity (replace the sensor with a new one).
E
Erica BaldwinSep 3, 2025
What does system abnormalities E-9 mean for Riken Keiki SD-D58-AC Security Sensors?
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  Linda PriceSep 3, 2025
  System abnormalities E-9 in Riken Keiki Security Sensors indicate abnormalities of ROM, RAM, or EEPROM inside of the detector. Please contact RIKEN KEIKI.
G
greenjenniferSep 5, 2025
How to fix a Riken Keiki Transmitter that won't turn on?
- M
  Michael WilsonSep 5, 2025
  If your Riken Keiki Transmitter isn't powering on, it could be due to several reasons: incorrect wiring (connect the wiring properly), a removed terminal plate (connect the terminal plate properly), abnormalities in the power supply system (provide the rated voltage and consider a UPS or power line filter), or cable issues (check the wiring of the detector head and related devices).

Riken Keiki SD-D58-AC Specifications

General

Alarm Method	Audible and Visual
Power Source	AC power
Output	Relay Contact (SPDT)
Operating Humidity Range	95% RH (non-condensing)
Dimensions	W120 x H180 x D70 mm
Operating Temperature Range	-10°C to +40°C

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Riken Keiki SD-D58-AC User Manual

Table of Contents

Questions and Answers:

Riken Keiki SD-D58-AC Specifications

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