Epson XDT manual Instrument Technical Specifications, Isolation

XDT User’s Manual

3.2 Instrument Technical Specifications

Enclosure:	XDT-OEM bare board
	XDT-NEMA tabletop or surface mount, watertight IP65 tested, and NEMA 12 tested
	XDT-PM panel-mount, DIN 43700 dimensional standard, optional NEMA 12 type protection gasketing
	available
Dimensions & Weight:	XDT-OEM: 4.25” x 5.15” x 2.25”, 0.6 lbs (fully optioned) without cables.
	XDT-NEMA: 4.73” x 6.3” x 3.55”, 2.1 lbs (fully optioned) w/cables.
	XDT-PM: 5.67” x 2.84” x 2.95” DIN 43700 standard, 1.3 lbs (fully optioned) w/cables.
	refer to appendix E for detailed dimensions
Environmental Range:	Operating temperature of electronics: 14°F to 122°F (-10°C to 50°C)
	Storage temperature of electronics: -40°F to 176°F (-40°C to 80°C)
	Humidity: 0 to 90% RH non-condensing
	Altitude: 0 to 6500 feet (2000 meters)
Mains Supply Voltage:	100 to 250VAC autoranging, 50/60Hz, 10VA, internal 0.5A, 250V fast acting fuse.
	Optionally the instrument may be configured with DC power capability: 15 to 30VDC 0.5A.
Electrical connections:	21 contact pluggable screw terminal block, 1.3mm diameter pins on 5mm centers.
Wiring requirements:	For AC Power: 18AWG or heavier wire, an external means for disconnecting the power source is
	required to meet National Electrical Code requirements.
	For Sensor signal: RG58 coaxial cable, or RG6 for cable longer than 100’. A 6 foot cable is provided as
	a standard, other lengths ordered as options. When changing cable, refer to cable compensation section.
Input resolution:	0.1°C dewpoint.
Indicators:	3.5 digit backlit LCD with custom legends, audible indicator.
Engineering units:	°C,°F, PPM, LBS H	2	O/mm scf,gm H O/m3.
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Controls:	Four push buttons, user’s selections are stored in EEPROM.
Outputs:	Analog: voltage by order or current user selectable 4-20mA or 0/24mA. Linear to the selected engi-
	neering units, the range is programmable. Output resolution is 0.1°C dewpoint, linearity 1%, max load
	resistance 500 Ohms.
	Digital RS-232C (9600,8,E,1), can interface to a Personal Computer or other RS-232 device.
Alarm relay contacts:	Ordinary use, explosion-proof housed, and safe area instruments: 10A, 250VAC or 30VDC.
	Intrinsically Safe Div 2 instruments use hermetically sealed relays: 3A, 120VAC
Isolation:	Sensor is isolated from power ground, analog output and RS-232, but they are shunted with a 33V tran-
	sorb, a 1M Ohm resistor and 0.1uF capacitor. Refer to Electrical Connections section.
Approvals/Classifications: CE for electromagnetic compatibility, accredited laboratory tested and certified
	UL and cUL for ordinary field wired use
	Intrinsically Safe configurations:			for NEC standard IS installations UL,
				for CENELEC standard IS installations DEMKO,
				refer to instrument labeling

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