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SATO KEIRYOKI SK-M350-TRH-I Instruction Manual

SATO KEIRYOKI SK-M350-TRH-I Instruction Manual

Temperature/humidity indicator

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Instruction Manual
Temperature/Humidity Indicator
Model SK-M350-TRH-I
No. 3 Nishi-Fukudacho, Kanda, Chiyodaku, Tokyo 101-0037 Japan
URL: http://www.sksato.co.jp/english/

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Summary of Contents for SATO KEIRYOKI SK-M350-TRH-I

  • Page 1 Instruction Manual Temperature/Humidity Indicator Model SK-M350-TRH-I No. 3 Nishi-Fukudacho, Kanda, Chiyodaku, Tokyo 101-0037 Japan URL: http://www.sksato.co.jp/english/...
  • Page 2: Risk Of Explosion

    - This is an indicator which displays the temperature and humidity by inputting a direct current 4 to 20mA. SK-M350-TRH-I can be connected to a 4 to 20 mA output device or our temperature/humidity transmitter model SK-RHC-I. Do not use this instrument for any other purposes - Read this instruction manual thoroughly before use and keep it in a safe place for future references.
  • Page 3 Overview This instrument is an indicator which displays the temperature and humidity by inputting a direct current ranging from 4 to 20 mA. This instrument can be connected to a 4 to 20 mA output device or our temperature/humidity transmitter Model SK-RHC-I (4 to 20 mA). Features - Easy to read LED display with the character height of approx.
  • Page 4 Names of components Front view Side view Bottom view Rear view (with cover) Rear view (without cover) Standard instrument Instrument with alarm (optional) (1) Display (red LED) : character height approx. 57mm (2) Input terminal board (3) DC jack : AC adaptor connection port (4) Fixture stand : Plate thickness t=3.2mm, 4 holes for fixture (5) Knob screw...
  • Page 5 Wiring method Cautions - Connect to a power source only after completing the wiring. - Please be careful not to confuse the wiring. Incorrect wiring may result in instrument failure. - Do not wire the instrument in places with heavy humidity or water splash nor with wet hands. - When wiring the terminal block, tighten the screws securely without a slack.
  • Page 6 2. Wiring method (1) Loosen the six screws at the rear side of the instrument and remove the cover. * Do not loosen or re-tighten the screws other than those six screws. <without the cover> <with the cover> Cover fixture screws (size: M3) terminal block Cover fixture screws (size: M3) (2) Insert the cable through from the outside of the cable wiring port on the cover and wire to...
  • Page 7 ○ Connecting with a Temperature/Humidity transmitter, model SK-RHC-I Check the wiring diagram of the terminal block and wire correctly. Humidity Temperature Both ends are for terminal block fixture screws. Do not loosen the screws. Terminal name Description Temperature current input + Terminal Temperature current input - Terminal Humidity current input + Terminal Humidity current input - Terminal...
  • Page 8 Installation method Cautions - Be careful not to let the instrument fall when using in desktop. - Use screws such as concrete screws in 4 holes on the fixture stand for secure fixture. - Concrete screws are not supplied with the instrument. - The weight of the instrument is approximately 3.8 kg.
  • Page 9 ○ Dimensions of the fixture stand (bottom view) Bottom view of the fixture stand * Plate thickness t=3.2mm (2) Loosen the knob screws at both sides of the fixture stand and adjust the indicator in any direction desired. After adjustment, tighten the knob screws while maintaining the angle. The indicator is fixed to the angle.
  • Page 10 How to Use Cautions - No power switch is available for this instrument, therefore the instrument becomes its operation state when connected to a power source. - Connect to a power source only after completing the wiring. - Please be careful not to confuse the wiring. Incorrect wiring may result in instrument failure. - Do not touch the terminals while power is being supplied.
  • Page 11 Alarm setting (optional) Setting the thresholds for alarm will enable the instrument to alert with a buzzer or rotating warning light when the displayed value is beyond either upper or lower limits. * Alarm function is an optional function available at the time of purchase order. ·...
  • Page 12 ○ Wiring diagram AL Hi (°C) AL Hi (°C) AL Lo (°C) AL Lo (°C) AL Hi (%) AL Hi (%) AL Lo (%) AL Lo (%) ○ Terminal description Terminal name Description Temperature current input + Terminal Temperature current input - Terminal Humidity current input + Terminal Humidity current input - Terminal AL Hi (℃)
  • Page 13 2. Setting method (1) Remove the cover and wire the terminal block. Re-install the cover after wiring. Refer to the 'Wiring method' section for cover removal. Alarm setting part (2) Slide the alarm switch up or down to switch setting. Set limit is shown on the display. * Use tweezers or a flat-blade screw driver to toggle the switch.
  • Page 14 (3) Turn the volume of upper/lower limit until the displayed value Volume for upper/lower limit setting matches an alarm setting value. Turning it clockwise make the displayed value greater; turning counter-clockwise make the value less. * Do not let the alarm set value goes beyond the measurable range (-10.0 to 60.0℃...
  • Page 15 Specifications Product name Temperature/Humidity indicator Model SK-M350-TRH-I Cat. No. No. 8091-52 (*1) Display range Temperature : -10.0 to 60.0°C Humidity : 0.0 to 99.9%rh Resolution Temperature : 0.1°C Humidity : 0.1%rh Accuracy Temperature : ± (0.2°C + 1 digit) Humidity : ± (0.2%rh + 1 digit) Sampling speed Approx.