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2.10 Heart Rate Measuring（Only in“B/M”and “M” Modes）
1.In B/M mode, freeze a satisfying cardiograph.
2. Measure the distance between wave crests of two periods by means of distance measuring
method, and 4 groups of data will be displayed in the lower right-hand corner. The marks are
respectively：Time T（unit：ms）. Heart Rate HR（unit： /m）. Slope EF（unit：mm/s）. refresh
rate ST (units)
B/M Mode
Single M Mode
Illustration of Heart Rate Measuring
2.11 OB calculation
The device is capable of measurement on GA of equine, bovine, sheep, swine, cat and dog, and
so on. The GA (GW) can be acquired after measuring GS, BL, HL, SL, USD, HD, BD, CRL etc., among
them, the EDD of cat and dog will be given.
Operation process:
Freeze the image, press
key to display equine, bovine, swine, sheep OB menu;
Press
key again to display cat and dog OB menu, press
key to switch between
this two menus as the following figure shows:
Input the number and select the related OB menu and acquire the distance as per distance
measurement method. The corresponding GA result displays behind “G·A=” on screen right,
and the EDD displays behind “EDD=” as given below in details:
● EQUINE-GSD：Calculate the gestation age according to horse GS
0
．
EQUINE
：
GSD
1
．
BOVINE
：
BL
2
．
BOVINE
：
SL
3
．
BOVINE
：
HL
4
．
SWINE
：
HL
5
．
SHEEP
：
USD
0
．
CAT
：
HD
1
．
CAT
：
BD
2
．
DOG
：
GSD
3
．
DOG
：
CRL
4
．
DOG
：
HD
5
．
DOG
：
BD
