1. General introduction

Unwound tail Artery Blood Pressure Measure 8i Analysis System is special to design for watching animal blood pressure, under such condition there is no harm to animal. And the testing animal can not be anaesthetized, wounded. So it’s a convenient method. The system notes contraction pressure, diastole pressure, average pressure and heart frequency, moreover, deals with data automatically, stores and counts experiment result in some time. It’s used to chronic animal blood pressure experiment especially when making use of the system, what makes you feel free.

2. Function character

Note, display, determine and store contraction pressure, diastole pressure, average pressure and heart frequency. In every measuring course, average every time’s measuring value, the result will be more accurate. Conserving every animal and experiment’s accumulation data, it’s unnecessary to note these data by hand. Handling data automatically, storing and counting some time’s experiment result, the preserved data can be input into Excel statistical table directly, then we statistics analyze the data and form the table what makes writing paper turn easy. The preserved charts are bmp documents, so you can use any chart compiling software to compile for paper. For original data being preserved, they can be reappeared and measured again. Not only computer but user by hand measures the data.. The user decides to hold the data or not by himself.

3.Technical index

Medlab collection system	ZH—100 pulse Transfer Energy Apparatus	ZH Blood Pressure Transfer Energy Apparatus	Blood pressure table
Channel amount: 4 channels Software operation terrace: Windows 2000/xp ME/98, standardized Windows interface Driver program. Have special Medlab-USB facility driver program The data shares together with Excel Sampling velocity is 1.6μs and maximum passing velocity is 800k bytes/second. Input data through USB structure	①Response frequency:≥1500HZ ②No source ③Outputting electric cable has two fuses ④External size: 16.5×6	①Measuring, scope ②Full measuring scope outputting ＞30mv ③No linear degree＜0.1%FS ④Delay＜0.5%FS ⑤operating voltage: 5—8v D.C. ⑥Zero line flow＜0.05%h(FS) ⑦Insulation resistance＞500 mΩ/100v ⑧Pressure limit is measuring scope’s 4 times ⑨Outputting resistance is from 1kΩ to 2kΩ ⑩Operating temperature: -20℃-+80℃	①Two graduations: kPa, mmHg ②Minimum graduation: 0.5kpa/kpa mmHg/2mmHg ③Error:±0.5KPa  ±0.75mmhg ④Zero line≤1KPa or ±0.5mmhg