Squirrel 450 / 850 Series Data Logger
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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:
pH adaptor module type (pH IFU )
- For use only with the 451MC
PCMCIA Card Slot
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¿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
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