Clock; Specifications; Fcc Compliance Information - GSE 60 SERIES Technical Reference Manual

A-16 Appendix A
GSE Scale Systems
C M
LOCK ODULE
The clock module is a real time clock/elapsed time counter. It is designed
to count seconds when Vcc power is applied, and to count seconds
continually under battery backup power with an additional counter
regardless of the condition of Vcc. The continuous counter is used with a
GSE software algorithm to derive time of day, week, month, and year.
The device contains a 32.768 kHz crystal that keeps track of time to within
+/-2 min/mo. An internal lithium energy source contains enough energy to
power the continuous seconds counter for more than 10 years.
Specification
Accuracy
Battery Life
Storage Temperature
Soldering Temperature
Any Pin to GND Voltage
FCC C
OMPLIANCE
This equipment has been tested and found to comply within the limits for a
Class A digital device pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and if
not installed and used in accordance with this Technical Reference
Manual, can cause harmful interference to radio communications.
Operation of this equipment in a residential area may cause harmful
interference, in which case the user will be required to correct the
interference at his own expense.
CABLES: Shielded cables must be used with this equipment to ensure
compliance with the Class A FCC limits.
S
PECIFICATIONS
Description
Self contained crystal provides an accuracy of +/-2
minutes per month at an operating temperature range
between 0 and 70°C (absolute maximum). The
module automatically corrects for leap year.
Minimum of 10 years with controller power off.
-40°C to 70°C (absolute maximum. (Clock exposure
to absolute maximum rating conditions for extended
periods of time may affect reliability.)
260°C for 10 seconds (absolute maximum).
The absolute maximum applied voltage on any pin
relative to ground is -0.3V to +7.0V (absolute
maximum).
I
NFORMATION