Configuring Alarm Output (Alarm); Configuring Alarm Output (Alarm - Hioki MEMORY HiLOGGER LR8450 Instruction Manual

8.2 Configuring Alarm Output (ALARM)

This section describes how to set the voltage level for the signal that is output when an alarm
condition is satisfied.
For more information about alarms, see "4 Alarm (Alarm Output)" (p. 1 71).
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Under [Alarm output 1]
outputting an alarm.
Low

High
Alarm output terminal specifications
Output type
Output voltage
Output
response time
Maximum
switching
capacity
Output pulse
width
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to [Alarm output 8], select the voltage level you wish to output when
Outputs the alarm at low level (0 V to 0.5 V).
Outputs the alarm at high level (4.0 V to 5.0 V).
Open-drain output (with 5 V voltage output)
High level: 4.0 to 5.0 V; low level: 0 to 0.5 V
Switchable between high and low level output
When using the plug-in modules:
(Recording interval or data refresh interval, whichever is longer) × 2 + 1 ms
+ (analog response time)*
When using the wireless modules (LR8450-01 only):
(Recording interval or data refresh interval, whichever is longer) × 2
2
+ (wireless response time)* + (analog response time)*
*1: Varies with filter setting (U8554: 5 ms, with 120 Hz low-pass filter)
*2: Depending on the number of connected modules (3 s when one wireless module is
connected).
5 V to 30 V DC, 200 mA
10 ms or greater
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