Smart Meter Specifications - Honeywell ST 3000 Installation Manual

A.3

Smart Meter Specifications

Operating Conditions
and Specifications
Table A-2 Smart Meter Specifications.
Operating Conditions
Parameter
Ambient Temperature
Relative Humidity
———————————
Design
Accuracy
Display Resolution Bargraph
Digital Readout
Display Update Rate
Meter Display at High
and Low Temperature
Extremes
2/05
Before installing a transmitter equipped with a smart meter or installing
the smart meter in an existing transmitter, please note the specifications
and operating limits of the meter in Table A-2.
—————
°F –40 to 176
°C
%RH
No error. Reproduces transmitter signal exactly within its resolution.
±3% of reading
±0.005 for ±19.99 reading range,
±0.05 for ±199.9 reading range,
±0.5 for ±1999 reading range,
±5 for ±19990 reading range,
±50 for ±199900 reading range,
±500 for ±1999000 reading range,
±5000 for ±19990000 reading range.
Above 32°F (0°C): ½ second
@ or below 32°F (0°C): 1½ seconds
The rated temperature limits for the meter are listed above and are true
in that no damage to the meter will occur over these temperatures,
however the readability of the LCD is affected if taken to these
temperature extremes:
• The LCD will turn black at some temperature between 80 to 90 °C
(176 and 194 °F), rendering the display unreadable. This effect is
only temporary, and normally occurs at 90 °C (194 °F).
• At low temperatures, the update rate of the display is lengthened to
1.5 seconds due to the slower response time of the display.
At -20 °C (-4 °F) the display becomes unreadable due to slow
response of the LCD. This is also only temporary and normal
readability will return when temperature returns above -20 °C (-4 °F).
ST 3000 Release 300 Installation Guide
Rated
–40 to 80
10 to 90
Extreme, Transportation and
Storage (See below)
–58 to 194
–50 to 90
0 to 100
Shown as:
19.99
199.9
1999
19.99 K
199.9 K
1999 K
19990 K
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