Vaisala PR-23 Series - Indicating transmitter model codes; Specifications

13.2 Indicating transmitter model codes
Table 58 Indicating transmitter DTR and STR model codes
Model Description
DTR Indicating transmitter (connectivity for two sensors)
STR Indicating transmitter (connectivity for one ‑IA/‑IF/‑CI sensor)
Cable connection
-U ½ in NPT type conduit hubs for CSA certified transmitter
-M M20x1.5 metric cable glands for general purpose
Electrical classification
‑GP General purpose
‑CS CSA certified for use in general purpose (ordinary) locations
Applicable to CSA and ANSI/UL standards
1)
Power supply
-AC Power supply 100‑240 V AC 50/60 Hz, fuse with voltage 250 V AC, max. size 10 A and
speed slow
-DC
Power supply 24 V DC
2)
1) Available only with cable connection code -U, ½ NPT type conduit hubs and -AC power supply.
2) With -GP option only.
13.3 Specifications
13.3.1 Indicating transmitter specifications
Table 59 Indicating transmitter specifications
Feature Specification
Display 320 x 240 pixel graphical LCD with LED backlight
Keypad 18 membrane keys
Current output Two independent current sources, 4 … 20 mA, max.
load 1000 Ω, galvanic isolation 1500 VDC or AC
(peak), hold function during prism wash
Power AC input 100-240 VAC, ±10%, 50/60 Hz / 30 VA
optional 24 VDC, Overvoltage Category II
Alarms/Wash relays Two built-in signal relays, max. 250 V/3 A
Input switches Four switch inputs
Chapter 13 – Indicating transmitter DTR and STR specifications
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