Yokogawa PR300 Power and Energy Meter - Manual (Page 65)

A-8 IM 77C01E01-01E
Appendix 1 Specifications of PR300
Environmental Conditions
Normal operating conditions
Warm-up time At least 30 minutes
Ambient temperature 0 to 50 °C (reference temperature: 23Ϯ2°C)
Temperature change 10 °C/h or less
Ambient humidity 20 to 90% RH (no condensation)
Magnetic field 400A/m or less
Continuous vibration 10 to 60 Hz, 0.035 mm, 75 minutes; 60 to 150 Hz, 4.9 m/s 2 , 75 minutes
Short-time vibration 14.7 m/s 2 for 15 seconds or less
Shock 98 m/s 2 or less (for shock time of 11 ms)
Installation Indoor installation only
Mounting position Vertical surface mounting only
Installation altitude 2000 m or less
Effect on operating conditions
Effects of ambient temperature Analog output: Ϯ0.05% of F.S./°C or less
Effects on power supply voltage variations Analog output: Ϯ0.05% of F.S./°C or less
Transport and storage conditions
Temperature -20 to 70 °C
Humidity 5 to 95% RH (no condensation)
Shock and dropping of package
90 cm (provided that an external packing box is used)
Mounting and Shape
Materials Casing Polycarbonate resin (PC), UL94 V-0
Terminal block Polybutylene terephthalate (PBT), UL94 V-0
Terminal cover Polyamide resin (PA6), UL94 V-2
Mounting method Panel mounting
Connection Method M3 screws for terminal connections (analog output, pulse output, demand alarm output, digital
input, and RS-485 communication)
M4 screws for terminal connections (voltage/current input and power supply)
RJ45 connection (Ethernet communication, when the Ethernet communication function is specified)
External Dimensions (including a terminal cover)
110 ϫ 110 ϫ 128 mm (H ϫ W ϫ D)
96 ϫ 96 ϫ 126 mm (H ϫ W ϫ D)
Weight Approx. 600 g (when accessories such as mounting bracket are attached)