Nova-Tech Digi–Sense 12-Channel Benchtop Scanning Thermometer User Manual
Page 44
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Front panel displays and controls continued
How to set alarm hysteresis
NUM
ALARM
°
F
How to set alarm hysteresis
The alarm mode must be ALARMS ON. If the alarm mode is ALARMS
OFF this setting is skipped in the MENU.
Note: Defaults /settings are described in
°
F, the actual scale used is the
scale that was previously selected.
The default setting is 1.0
°
F.
Hysteresis can be any value from 0.0
°
F to 99.9
°
F.
Hysteresis is the
±
temperature range before an alarm is out of range.
For example, if a HI alarm is set at 100
°
and hysteresis is set at 1
°
, that
channel’s temperature exceeds 100
°
, and alarms are set to ON, the
alarm will come on. The alarm will be automatically reset when the
channel’s temperature goes below 99
°
. If hysteresis was set at 5
°
the
alarm would be automatically reset when the channel’s temperature goes
below 95
°
.
To set alarm hysteresis:
1. Push MENU until HYST 1a, ALARM 1b and current hysteresis
value 1c (flashing) are displayed.
NUM 1d appears and flashes indicating number keys are active.
2. Push number keys to set hysteresis.
(For example, 02.3 is entered by pushing 0 - 2 - 3.)
3a. Push EXIT to save the setting and return to scanning, or
3b. Push MENU to switch to the next setup topic (adjust HI alarm
setpoints).
+ -
A L A R M
E X I T
MENU
1
S T O R E
2
L O G
3
R E C A L L
4
P R I N T
5
M A X
6
M I N
7
A V G
8
H O L D
9
S C A N
NUM
ALARM
°
F
1a
1, 3b
3a
1b
1d
1c
2
0
C L E A R
BA 37-43
10/12/01, 11:05 AM
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