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4/8 ´Ù±â´É µ¥ÀÌÅͷΰÅ
4/8 ´Ù±â´É µ¥ÀÌÅͷΰÅ
  ¸ðµ¨¸í : 450 / 850
  ¿ø»êÁö : ¿µ±¹
  Á¦Á¶»ç : ELTEK LIMITED
  °¡   °Ý : ¹®ÀÇ
  ºÐ·ù¸í : µ¥ÀÌÅͷΰÅ, datalogger
product
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Squirrel 450 / 850 Series Data Logger

450 / 850 ½Ã¸®Áî´Â ÃÖ´ë 4 ¶Ç´Â 8ÀÔ·ÂÀÇ ºñ¿ë È¿À²ÀûÀÎ ÈÞ´ë¿ë µ¥ÀÌÅÍ ·Î°Å ÀÌ´Ù. À§ ´Ü°èÀÇ 1000½Ã¸®Áî µ¥ÀÌÅÍ ·Î°Å¿Í °øÅëÁ¡ÀÌ ÀÖ°í ÀλóÀûÀÎ »ç¾ç°ú ±ä ¹èÅ͸® ¼ö¸í°ú 3³â º¸ÁõÀ» °®Ãß°í ÀÖ´Ù. ÀÌ ¸ðµ¨ 451 ¹× 452´Â ¼­¸ÓÄ¿Çðú ¼­¹Ì½ºÆ® µÑ´Ù ¼¾¼­¸¦ À§ÇØ Àü¾Ð°ú Àü·ù ¿Âµµ¸¦ À§ÇØ ÀÔ·ÂÀ» °¡Áö´Â º¸ÆíÀûÀÎ Àåºñ ÀÌ´Ù. 851¸ðµ¨Àº 451ÀÇ 8ÀÔ·Â ¹öÀüÀÌ´Ù.

The 450/850 Series Range Of Models

450/850½Ã¸®Áî´Â ´ÙÀ½ ¸ðµ¨·Î ±¸¼º, °¢ »ç¿ëÀÚ°¡ ´Ù¾çÇÑ ¾îÇø®ÄÉÀ̼ÇÀ» Á¦°øÇÑ´Ù.

Model Inputs Features
451
851
4 channels
8 channels
Each channel configurable for temperature, voltage or current input
451T 4 channels 0.1sec Interval (Fast Recording feature)
451pH 4 channels Supports up to 2 x external pH adaptor module type pH IFU(purchased separately).
451MC 4 channels PCMCIA memory slot installed to accept SRAM card (purchase separately)
452 4 Pulse only channels See CPU module
453 1 Event + 8 Pulse inputs (5Hz) for slow counting
401 4 channels 'Blind' 451 - less display and control panel

Factory installed Options

Pulse input
The 451/851 only is available with:

  • Two pulse inputs

pH adaptor module type (pH IFU )

  • For use only with the 451MC

PCMCIA Card Slot

¿É¼ÇÀ¸·Î µ¥ÀÌÅͷΰŠSRAMÀº ¸Þ¸ð¸®Ä«µå ½½·Ô¿¡ ÀåÂøÇÒ ¼ö ÀÖ´Ù. µ¥ÀÌÅͷΰŴ »ç¿ëÀÚ°¡ Á÷Á¢ Ä«µå ¶Ç´Â ÄÄÇ»ÅÍ°¡ PCÄ«µå ½½·Ô¿¡ ÀåÂøÇÏ¿© ½¬¿î µ¥ÀÌÅÍÀÇ Àü¼ÛÀ» À§ÇÑ ³»ºÎ ¸Þ¸ð¸® Ä«µå¿¡ º¹»ç, ³ìÀ½À» ÇÒ ¼ö ÀÖ´Ù. Ä«µå Æŵ¶ ÃÖ´ë 2M SRAMÀ» ÀúÀåÇϱâ À§ÇØ »ç¿ëÇÒ ¼ö ÀÖ´Ù. Darca¼ÒÇÁÆ®¿þ¾î´Â Ä«µå¸¦ ¼³Á¤ÇÏ°í ÆÄÀÏÀ» ºÐ¼® ¶Ç´Â ASCIIÇü½ÄÀ¸·Î º¯È¯ Ç¥ÁØ ¼ÒÇÁÆ®¿þ¾îÀÇ »ç¿ë¿¡ ÀûÇÕÇϵµ·Ï ¸ðµç Ä«µå¿¡¼­ µ¥ÀÌÅ͸¦ Àü¼ÛÇϱâ À§ÇÑ µµ±¸°¡ Æ÷ÇÔ µÇ¾î ÀÖ´Ù.

¿ì¸®´Â King Max, Panasonic or Mitsubishi cards ÃÖÀúÀǼҺñ Àü·ÂÀ» »ç¿ëÇÏ´Â °ÍÀÌ ÁÁ´Ù. Âü°í: ¿ì¸®´Â ¸ðµç SRAMÀÇ Ä«µå, ƯÈ÷ 2Â÷ ÀüÁö¿Í ±× ÀÌÀü ¹öÀüÀÇ ÀϺΠ³ôÀº Àü·Â ¼Òºñ¿Í ÇÔ²² »ç¿ëÇÒ¶§ ÀûÇÕÇÏ´Ù. ƯÈ÷ ¹èÅ͸®Àü¿øÀ» »ç¿ëÇÒ¶§. ¾Ç¼¼»ç¸®·Î SRAM¿¡ ´ëÇÑ ÀÚ¼¼ÇÑ ³»¿ëÀ» ÂüÁ¶ ÇϽʽÿä.

Field installed options

¸Þ¸ð¸®´Â 2M ¼öÄ¡ (¾à 2,080,000)À¸·Î È®ÀåµÉ ¼ö ÀÖ´Ù.

¸Þ¸ð¸®°¡ ¸¹ÀÌ ´Ù¿î·ÎµåÇÏ°í ±× ·Î±ëÀ» ½ÇÇà¿¡ »ç¿ëµÇ´Â ¸Þ¸ð¸®ÀÇ ¾çÀ» ÁÙÀÏ ¼ö ÀÖ´Ù. ´Ü ½Ã°£À̰ɸ®´Â°É ÀØÁö¸»¾Æ¶ó. Eltek·Î°Å´Â 38400º¸µå¿¡¼­ ´Ù¿î·ÎµåÇÏ°í ÃÊ´ç 500¹ø ÀÐÀ» ¼ö ÀÖ´Ù.

Common Features

All models feature panel mounted controls (except the 401) and a 2 line, 32 character LCD readout for setting up, monitoring and reading recorded events on the logger. Resolution is 12 bit with standard thermistor , thermocouple and DC voltage or current inputs. Two sensor power outputs are available to power external sensors - such as humidity probes.

EU Range
In addition "EU" range is standard, enabling the logger to independently rescale each input to a user defined engineering unit, e.g. humidity can be displayed as 0 to 100% RH, permitting quick and unambiguous understanding of the readings on the display.

Internal memory
The logger is fitted as standard with 250K of memory, backed up by a lithium battery, and at least 250,000 locations are available for data storage. Note that this refers to data storage, not bytes, as 2 bytes of conventional memory are used for every reading. Larger memory can be field fitted by a competent engineer as an option.

Accessories

The Squirrel 450/850 series shares many of the accessories available to the Squirrel 1000 series datalogger . The most significant exceptions are noted.

Software

The 450/850 series is fully compatible with the Eltek Darca Lite and Darca Plus software, providing comprehensive remote control, data transfer and analysis tools using a Windows based PC.

Connection to the PC can be:

  • Direct - use the LC68 computer cable.
  • Remote - via a landline - use a commercially available modem (use only Darca Plus software).
  • Remote - via a cellular network - use the GSM modem kit type GSM-mdm c/w antenna.
  • Remote - via Ethernet - for networked Squirrel dataloggers use the Moxa De311 serial to ethernet convertor

 

 

Specification

Accuracy (at 20ºC) Voltage/Current:
Temperature:
±0.1% of reading ±0.1% of span
±0.1% of reading ±0.1% of span
Environment Ambient temperature: -30ºC to 65ºC
Humidity up to 95% (non condensing)
Power Supplies Internal: Six AA manganese alkaline batteries (9V nominal)
External: 9-14V DC at 100mA.
Battery Life At least 6 months with all channels recording every 5 minutes
Clock Accuracy 1 second/day at 20ºC
Physical details Dimensions (mm): H 120, W 180, D 62
Weight, inc batteries: Approximately 1Kg
Material: ABS coated with durable NEXTEL finish
Interface RS232C at up to 38,400 Baud
Connectors RS232 Output:
Inputs:
6 pin female mini-DIN
3 pin ST Plug (5mm pitch "screw Terminal")
Input impedance Voltage and Thermocouple: 1M Ohms
Current: 10 Ohms
Sensor power outputs Internally selectable to 5V regulated or Squirrel supply voltage.

Ranges

Input type Available ranges Resolution
Thermistor -50 to 150ºC 0.1C
Thermocouple - Type K 0 to 900ºC 0.5C
Thermocouple - Type K -200 to 450ºC 0.2C
Thermocouple - Type T -200 to 350ºC 0.2C
Voltage 0 to 50mV 50µV
0 to 100mV 50µV
0 to 200mV 50µV
0 to 500mV 0.5mV
0 to 1V 0.5mV
0 to 2V 0.5mV
0 to 5V 5mV
0 to 10V 5mV
0 to 20V 5mV
-25 to 25mV 50µV
-50 to 50mV 50µV
-100 to100mV 50µV
-250 to 250mV 0.5mV
-500 to 500mV 0.5mV
-1 to 1V 0.5mV
-2.5 to 2.5V 5mV
-5 to 5V 5mV
-10 to 10V 5mV
Current 4 to 20mA 0.05%
0 to 20mA 5µA