Easidew Online User’s Manual
Michell Instruments 45
APPENDIX A
Appendix A Technical Specifi cations
Monitor
Performance
Measurement Range
(Dew Point)
-100 to +20°C (-148 to +68°F) dew point
Electrical Specifi cations
Input Signal
4-20 mA input from Michell dew-point transmitter
Output Signal
4-20 mA (or –20mA) (2-wire connection, current source)
User confi gurable over range
Alr 1 Relay
Single pole make contact, rating 3 A @ 250 V AC
Alr 2 Relay
Changeover contacts, rating 5 A @ 250 V AC
Output
Dew point or moisture content for ppm
V
Analog Output Scaled
Range
Dew point: -100 to +20°C
Moisture content in gas: 0-3000 ppm
V
Non-standard available upon request
Power Connection
2 wire, length 2m (6.6ft)
Supply Voltage
100 to 240 V AC (+10%, -15%), 50/60 Hz
(Optional 24 V DC) (-15%, +10%) 6W
Over Voltage Category
III, fi xed installation category
Display
20.3mm red 4 digit LED display
Temperature and Alarms
Indicators
Red LED’s
Load Resistance
Max 600 Ω
Current Consumption
AL1, AL2, °C, °F
Power Connection
60 mA max
Transmitter cable
Copper braid screened cable; 4 core 7 / 0.2 (0.22mm²), stranded,
tinned copper conductors, PVC, insulated, Melinex taped, Black PVC
outer. Max length 800m (2,624 ft)
Operating Specifi cations
Environmental Ratings
Standard, indoor at an altitude of less than 2000 meters with non-
condensing humidity
Operating Temperature 0 to +50°C (+32 to +122°F) 90% RH max (non condensing)
Operating Mode Continuous
Mechanical Specifi cations
Ingress Protection IP65 (NEMA 4X) at front, IP20 at rear
Housing Material 1/8 DIN 43700 plastic housing
Dimensions 96 X 48 x 86.5mm (3.8 x 1.9 x 3.4”) horizontal
Mounting Panel mounting (cut out 92 x 46mm (3.6 x 1.8”))
Weight Approximately 210g (7.4oz)
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