Recommended separation distances between portable and mobile RF communications
equipment and the Welch Allyn Home Scale
Separation distance according to frequency of transmitter (m)
Rated max. output
power of transmitter
(W)
150 kHz to 80 MHz
d
= (1.167)
80 MHz to 800 MHz
d
= (1.167)
800 MHz to 2.5 GHz
d
= (2.333)
0.01
0.167
0.167
0.233
0.1
0.369
0.369
0.738
1
1.167
1.167
2.333
10
3.690
3.690
7.338
100
11.67
11.67
23.33
For transmitters rated at a maximum output power not listed above, the recommended separation distance
d
in meters
(m) can be estimated using the equation applicable to the frequency of the transmitter, where
P
is the maximum output
power rating of the transmitter in watts (W) according to the transmitter manufacturer.
Note 1: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
Note 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects, and people.
Warranty
Welch Allyn will warranty the Home Scale to be free of defects in material and
workmanship and to perform in accordance with manufacturer specifications for the
period of two years from the date of retail purchase.
The warranty period shall start on the date of purchase. The date of purchase is: 1) the
invoiced ship date if the device was purchased directly from Welch Allyn, 2) the date
specified during product registration, 3) the date of purchase of the product from a
Welch Allyn authorized distributor as documented from a receipt from said distributor.
This warranty does NOT cover damages caused by misuse or abuse, including but not
limited to:
•
Failure caused by unauthorized repairs or modifications
•
Damage caused by shock or dropping during transportation
•
Damage caused by improper use of the power supply
•
Failure caused by improper operation not consistent with the instructions stated in
this Directions for use
Should this device require maintenance (or replacement at our option) under warranty,
please deliver the original package to Welch Allyn prepaid. Please return the store receipt
(with the retail purchase date) and a note with the reasons for the return.
Directions for use
Appendices 19
