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PR-23 instrucon manual
10.3 Specificaons
10.3.1 Indicang transmier specificaons
Display: 320x240 pixel graphical LCD with LED backlight
Keypad: 18 membrane keys
Current output: Two independent current sources, 4-20 mA, max.
load 1000 Ohm, galvanic isolaon 1500 VDC or AC
(peak), hold funcon during prism wash
Power: AC input 100-240 VAC, ±10%, 50/60 Hz/30 VA,
oponal 24 VDC, Overvoltage Category II, Polluon
Degree 2 (DTR), Polluon Degree 3 (sensor)
Alarms/Wash relays: Two built-in signal relays, max. 250 V/3 A
Input switches: Four switch inputs.
Current outputs: Two current outputs configurable independently to
indicate process concentraon or temperature of
either sensor.
Sensor connecvity, DTR: One or two sensors can be connected to the
transmier. Sensors independent of each other:
own parameter sets and usable in different
applicaons.
Sensor connecvity, STR: Only one sensor can be connected to the transmier.
Used with the Intrinsically safe sensor PR-23-...-IA.
Transmier protecon class: Enclosure IP66, Nema 4X
Installaon: Transmier indoor, sensor indoor/outdoor, relave
humidity 80% max
Indicang transmier weight: 4.5 kg (10 lbs)
10.3.2 Interconnecng cable specificaons
Cable: IEC 61158-2 compliant two-wire cable:
two signal wires and shield
copper area 0.8 mm
2
(18 AWG)
cable resistance 24 Ohm/km (per wire)
cable aenuaon 3.0 dB/km @ 28 kHz
Cable length: Standard 10 m (33 ), max. total length 200 m
(660 )
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