Riken Keiki GP-6001 Operating Manual

When installing the Riken Keiki RM-6000 Series, avoid places with vibrations or shocks, exposure to water, oil, or chemicals, and temperatures outside the range of -10°C to 50°C. Also, do not install it in places exposed to direct sunlight or sudden temperature changes, near noise source devices, or where maintenance cannot be performed safely. Ensure the machinery is properly grounded before installation.

Was this helpful? What is the primary purpose of the Riken Keiki RM-6000 Series indicator/alarm unit?

The Riken Keiki RM-6000 Series is an indicator/alarm unit designed for use in combination with a gas detector head on an one-on-one basis. It functions as part of a gas detection and alarm system, displaying gas concentration and providing alarm contacts. For more information, see pages 3 and 4 of the manual.

Was this helpful? What is the startup procedure for the Riken Keiki RM-6000 Series?

To start the Riken Keiki RM-6000 Series, first ensure it is properly installed. Then, open the lower front cover to find the power switch and turn it ON. The unit will then undergo a start-up procedure (approximately 25 seconds, or 210 seconds for RM-6003T) involving initial clear and gas specification display, before entering the detection mode. Do not turn off the unit during the initial clear. For more information, see page 30 of the manual.

Was this helpful? What should I do if the Riken Keiki RM-6000 Series does not power on?

If the Riken Keiki RM-6000 Series does not power on, first check if the power switch is turned off and turn it ON. If it still doesn't power on, check for a fuse open-circuit and replace it after finding the cause. Also, verify for incorrect connection of the power cable and correct it. For more information, see page 71 of the manual.

Was this helpful? How does the Riken Keiki RM-6000 Series display gas concentration and alarm levels?

The Riken Keiki RM-6000 Series displays gas concentration on a character LCD with digital and bar meter displays. The display colors indicate danger levels: green when no alarm setpoints are exceeded, orange if the first alarm setpoint is exceeded, and red if the second alarm setpoint is exceeded. It also has two-step gas alarm contact and fault alarm contact. For more information, see page 4 of the manual.

Was this helpful? How do I perform a zero adjustment on the Riken Keiki RM-6000 Series?

To perform a zero adjustment, access the "1-1. ZERO" option in the user mode. Introduce the zero adjustment gas to the detector head and wait for the reading to stabilize. Then, press the SET key to perform the adjustment. For oxygen deficiency alarm specifications (O2: 0 - 25%), an AIR adjustment is performed using fresh air to adjust to 20.9%. For more information, see page 37 of the manual.

Was this helpful? What are the power supply requirements for the Riken Keiki RM-6000 Series?

The Riken Keiki RM-6000 Series requires an AC specification of 100 - 240 VAC ±10% or a DC specification of 24 VDC ±10%. It is important to use a stable power supply and avoid unstable power supplies or those with large power loads or high-frequency noise, as this may cause malfunctions. For more information, see page 16 of the manual.

Was this helpful? How do I properly ground the Riken Keiki RM-6000 Series?

The Riken Keiki RM-6000 Series must be connected to a grounding terminal before turning on the power. This ensures stable operation and safety. The grounding should be a D type grounding (below 100 Ω of grounding resistance) and must not be connected to a gas pipe. For more information, see page 24 of the manual.

Was this helpful? What is the maintenance schedule for the Riken Keiki RM-6000 Series?

The Riken Keiki RM-6000 Series requires daily maintenance including a power supply check and concentration display check. Monthly maintenance involves performing an alarm test. Regular maintenance (once or more every six months) includes zero adjustment, span adjustment, and other services to maintain performance and safety. For more information, see page 48 of the manual.

Was this helpful? What types of cables are recommended for wiring the Riken Keiki RM-6000 Series?

The Riken Keiki RM-6000 Series requires specified cables for connections between the indicator/alarm unit and the detector head. For power supply, CVV (1.25 sq or 2.0 sq) 2-core cables are recommended. For detector head connections, CVV (1.25 sq or 2.0 sq) 4-core or 6-core are used for GP-6001, NC-6001, NC-6001W, SP-6001. For signal cables, CVVS (1.25 sq or 2.0 sq) 2-core is recommended.

Was this helpful? How do I turn off the Riken Keiki RM-6000 Series?

To turn off the Riken Keiki RM-6000 Series, open the front cover of the main unit and turn the power switch to "OFF". Then, turn off the power supply (24 VDC) to the indicator/alarm unit. Before turning it off, ensure that the inhibit (point skip) on the upper (central) system is activated, and check the operation of connected devices to prevent unintended alarms.

Was this helpful? What is the alarm test mode for the Riken Keiki RM-6000 Series?

The alarm test mode on the Riken Keiki RM-6000 Series is used to generate dummy signals that simulate gas concentration signals. This allows checking the activation of the alarm lamp and the transmission to external circuits. To activate, press the TEST key for three seconds. It's important to notify relevant sections before starting the test to prevent false abnormalities.

Was this helpful? What is the zero suppression function in the Riken Keiki RM-6000 Series?

The zero suppression function in the Riken Keiki RM-6000 Series is used to hide fluctuations in readings around zero that are caused by environmental changes or interference gases. This function helps to prevent false alarms when there is no actual gas leakage by indicating zero when fluctuations are under a set value.

Was this helpful? How do I clean the Riken Keiki RM-6000 Series?

To clean the Riken Keiki RM-6000 Series, first ensure the indicator/alarm unit is turned off. Use a waste cloth to remove dust. Do not use water or organic solvents for cleaning, as they may cause malfunctions.

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