RedCos-D Temperature/Humidity Transmitter

Description

Highest protection class (ATEX) and IP66 protection, small dimensions, universal functions and technical data guarantee safe operation even under difficult environmental conditions.

All sensors are programmable on site without any additional tools. The measuring ranges are scalable within the maximum ranges. The analogue output signal is either 0…10 VDC or (0)4…20 mA and can be selected on site.

The integrated display (can be switched off as needed) is for parametrisation and an actual value indication at working mode.

TECHNICAL DATA

Marking:
II 3(1)G Ex nC [ia Ga] IIC T6…T4 Gc
II 3(1)D Ex tc [ia Da] IIIC T80°C…T130°C Dc IP66
Certificate: EU-Type Examination Certificate
Supply voltage / frequency: 24 VAC/DC ± 20% (19,2…28,8 VAC/DC), 50/60 Hz
Current power consumption: 150 mA, ~ 4 W, internal fuse 500 mAT, without bracket, not removable
Galvanic isolation: Supply for analogue in- and outputs min. 1,5 kV, supply for relay output min. 1,5 kV
Electrical connection: Terminals 0,14…2,5 mm² at integrated Ex-e terminal box, stripping length 9 mm, torque 0,4…0,5 Nm,
equipotential bonding 4 mm²
Display / Control elements: 2 × 16 digits, dot-matrix display, backlit, for configuration, user guidance, parameter and actual value indication / 3 buttons for configuration
Housing: Aluminium die-cast housing, coated. / T6 (T80 °C) a −20…+50 °C
Ambient Temperature – Humidity: −20…+50 °C, storage temperature −35…+70 °C / 0…95 % rH, non condensing
Sensor connection: For ExPro-C… sensor only! Via plug and socket connection at front side (for room mounting) or at back side
(for duct mounting). Attention: Only 1 ExPro-C… sensor per transmitter can be connected!
Measuring ranges adjustable: Measuring ranges are scalable within and limited by the maximum sensor measuring range
Response time of sensor: T90 / ~ 1 s
Start delay: 5 s
Stability: Long term stability < 0,2 %/year, temperature influence < 0,02 %/K, supply voltage influence < 0,01 %
Output: Voltage U [V] or current I [mA] selectable via menu on site (with combi sensors not adjustable separately), protected against short circuit and external voltage up to 24 V, protected against polarity reversal
Voltage output U: 0…10 V adjustable, invertible, burden > 1 kΩ, influence < 0,05 %/100 Ω + accuracy of …Pro-C… sensor
Current output I: 0…20 mA adjustable, invertible, burden < 500 Ω, influence < 0,1 %/100 Ω, open circuit voltage < 24 V + accuracy of …Pro-C… sensor
Output in alarm mode: Increasing or decreasing output signal, selectable on site, down to 0 VDC/0 mA or up to 10 VDC/20 mA
Scope of delivery: Transmitter, 3 self-tapping screws 4,2 × 13 mm resp. in stainless steel (with …CT and …VA versions)
Parameter at delivery: Output 4…20 mA, output in alarm mode decreasing to 0 V/0 mA
Dimensions: 180 × 107 × 66 mm
Weight: ~ 950 g
Cable entries: 2 × M16 × 1,5 mm, Ex-e approved, for cable diameter ~ Ø 5…9 mm