Michell Instruments Optidew User Manual page 43

Optidew Series User's Manual
Remote PRT
Cable
Cable Length 2m (6.56ft); 50m (164ft) max; up to 250m (820ft) on special request
Te m p e r a t u r e
4 wire Pt100, 1/10 DIN class B
Measurement
Transmitter Electronics
0.1 for °C, °F and %RH
Resolution
0.01 for g/m
Analog: 4-20 mA or 0-20 mA over user-settable output
Accuracy: ±0.2°C (±3.6°F); 500 Ω maximum load resistance
Outputs
Digital: RS232 @ 9600 baud rate
Alarm: Volt free contact, max 2 A @ 30 V DC, 0.5 A @ 120 V AC
Optidew: Power On, DCC/Alarm Status
Status LED's
Optidew Vision: DCC/Alarm Status
Operating
-20 to +50°C (-4 to +122°F) ambient
Temperature
Up to 98% RH non-condensing
Environmental
Conditions
Optidew (only): 100% RH condensing with optional weatherproof cable pack
Optidew: 304 stainless steel (DIN 1.4301)
Enclosure
Optidew Vision: Standing case with carry handle / Panel mounting kit optional
Optidew: IP66 (NEMA 4X)
Ingress
Protection
Optidew Vision: IP54 (NEMA 2) rated
Cable Pack Power and RS232 cable and output connector
General
4-point traceable in-house calibration as standard, UKAS accredited calibrations
Calibration
optional - please consult Michell Instruments
*Measurement accuracy means maximum deviation between instrument under test and corrcted
reference. To this must be added the uncertainties associated with the calibration system and the
environmental conditions during testing or subsequent use
**Recommended for special applications only, consult Michell Instruments before ordering..
Michell Instruments
Standard Cable: PVC insulator material, 70°C (158°F) max temperature
High Temperature Cable: PTFE insulator material, 250°C (482°F) max
and g/kg
3
temperature
APPENDIX A
35