Simex SRD-99, User Manual

Page: 49 / 112

User manual - DATA RECORDER SRD-99 and cooperating software
7.4.5. ” Input settings ” menu (common parameters)
This menu enables the configuring of current inputs. The number of the configured input
is displayed in the upper part of the display ( Fig. 7.19 ).
The following options are available in this menu:
”Name” - name assigned for the given channel (9-character sequence enabling identification
of given channel),
”Filter”
- this option enables the level of the filtration of indications to be changed.
Permissible values: from 0 (no filtration) to 5 (filtration with maximum time constant
of approx. 2 seconds).
” AL1 mode ”
” AL2 mode ”
- those parameters describes the way of alarms generation. Each channel is
able to generate two independent alarms, used in control of the outputs (see
„
Outputs settings ”). The following options are available:
” Under threshold ”
- alarm is generated when displayed value in this channel is
under entered value.
” Over threshold ”
- alarm is generated when displayed value in this channel is
over entered value.
” Threshold 1 ”
” Threshold 2 ”
- the value entered in this field is constantly compared with the current
value. Outpassing this value (up or down, depends on mode setting)
causes alarm generation.
Entered values are not checked by the device. If value of the threshold is out range
of the current channel (e.g.: -10 when minimal value in the channel is 0) specific
alarm will not be generated (or will be generated continuously , depending on
„ AL1 mode ”, „ AL2 mode ” settings).
”
Hysteresis 1
”
”
Hysteresis 2
”
- the hysteresis values for the ”
Threshold 1
” and ”
Threshold 2
”
parameters. Those parameters can be configured to prevent generation of
short and often alarms. When this parameter is set to value greater than
0
the specific alarm is generated when displayed value exceeds threshold
+/- hysteresis.
Fig. 7.19. „ Input settings ” - a larms settings
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