
14
(3) External outputs
(i) Signal name and pin assignments
Pin #
Signal
1
ALM1 (upper limit)
2
ALM1 (upper limit)
3
ALM2 (lower limit)
4
ALM2 (lower limit)
Note: Dedicated cable: ALMHA-1.5
(ii) Output signals
It compares the current temperature with the alarm set value and outputs
the contacts as shown in the table below.
Measurement data status
Upper limit alarm Lower limit alarm
Higher than upper limit
Close
Open
Within upper and lower limits
Open
Open
Lower than lower limit
Open
Close
Note: The alarm output uses a photo MOS relay.
ON resistance (internal protection resistance 400Ω, photo MOS relay
ON resistance 50Ω)
Drive voltage MAX.25V
(iii) Example of connection
Note: Make sure to turn the power off before connecting/disconnecting the
instrument to other equipment.
Содержание HR-1100
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