UPR700 Microprocessor-Based Pressure/Process Indicator 11
the following functions:
• alarm reset • remove zero calibration
• peak reset • alarm, peak, and zero calibration
• alarm and peak reset
NOTE: This input is not isolated from primary input. A double or reinforced insulation between
instrument output and power supply must be guaranteed by the external device.
2.8 ALARMS SPECIFICATION
Alarm Outputs: 2 standard alarms (AL1 and AL2). 1 optional alarm (AL3).
AL1 and AL2 Contacts: 1 SPDT 2 A max 0 240V AC resistive load.
AL3 Contacts: 1 SPST solder jumper selectable NO/NC 2 A max @ 240V AC resistive load.
Contact Protection: Varistor for spike protection.
Alarm Type: Each alarm is keyboard programmable for:
• Primary / Secondary input
• High / Low / Low inhibited on start up
•Auto / Manual reset
Excitation Type: Keyboard configurable for each alarm: relay coil energized in no alarm condition
(failsafe) or relay coil energized in alarm condition (non-failsafe).
Threshold: From 0 to 110% Full Scale (the threshold may be limited due to the selected full scale
value).
Hysteresis: Keyboard programmable for each alarm; from 0.1% to 10.0% of span or 1 LSD
(whichever is greater) for each alarm.
Filter: Selectable from the following values for each alarm:
OFF, 0.4 s, 1 s, 2 5. 3 s. 4 s, 5 s.
Alarm Update Time: At every input conversion.
2.9 OPTIONAL SERIAL COMMUNICATION INTERFACE SPECIFICATION
Serial Interface: RS-485 type. Opto-isolated.
Protocol Type: Modbus/Jbus (RTU mode).
Type of Parameters: Run-time and configuration are available by serial link.
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