Michell Instruments Optidew User Manual

Optidew User’s Manual
Michell Instruments 45
APPENDIX B
Control Unit
Resolution 1 or 2 decimal places selectable
Measurement Units
°Cdp or °Fdp
Relative humidity - %
Absolute humidity - g/m
3
, ppm
V
Mixing Ratio - g/kg
Wet Bulb Temperature (Twb) - °C, °F
Water Vapour Pressure (wvp) - Pa
Ambient Temperature - °C, °F
pressure converted DP - °C, °F
pressure - KPa, Bara, Barg, Psia, Psig
Enclosure Wall Mount Bench Top
Material ABS ABS
Analog Outputs
Two mA outputs, selectable
0-20, 4-20 (maximum load
500Ω)
Two mA outputs, selectable
0-20, 4-20 (maximum load
500Ω)
Digital
Communications
Modbus RTU over RS485
(standard)
Modbus TCP over Ethernet
(optional)
Modbus RTU over:
USB (standard)
RS485 (standard)
Modbus TCP over Ethernet
(optional)
Alarms
1x Process Relay,
1x Alarm Relay,
Both Form C, 1A, 30V DC
1x Process Relay,
1x Alarm Relay,
Both Form C, 1A, 30V DC
Inputs 4-20mA for pressure sensor 4-20mA for pressure sensor
Data Logging SD card slot (optional) SD card slot (standard)
Ingress Protection
IP54 (standard)
IP65 (optional)
IP54
Dimensions 220x175x75mm 220x175x118mm
Weight
Control unit: 1.5kg
Sensor: 200g
Control unit: 1.5kg
Sensor: 200g
Display
5.7” color touch screen
(optional)
5.7” color touch screen
Environmental
Conditions
-20 to +50°C, up to 100%RH non-condensing
(optional) 100% RH condensing with IP65 version
Supply Voltage 100 to 240V AC, 50 to 60Hz
Power consumption 30VA max

Michell Instruments Optidew Specifications

General

Brand	Michell Instruments
Model	Optidew
Category	Measuring Instruments
Language	English