AX-100/200TFR series
Frequently Asked Questions (FAQ’s)
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P.11
(3) Tamper alarm to acknowledge both backbox and front cover removal.
Tamper alarm works in three ways. Either removal of the front cover, back
box or mounting plate can trigger tamper output. The latter two tampers
share the same output connection placed in the backbox.
Q-19: What is an
“
IP rate
”
?
A-19: International Protection (IP) rate is the standard defined by IEC60529.
AX-TFRs
’
rating is IP55. The first numeral indicates degrees of protection
against dusts. The second numeral indicates degrees of protection against
water. Please refer to the International Electrotechnical Commission website
for detailed explanations (
IP 55 suggests:
Dust-protected. Ingress of dust is not totally prevented but dust shall not
penetrate in a quantity to interfere with satisfactory operation of the
apparatus or impair safety. Protected against water jets from any direction
(Front Cover Tamper)
(Back Box Tamper)
(Wall Tamper)
