Measurement parameters
Temperature
Relative Humidity
Isolation type and design
Two identical Zener isolators ZB1 and ZB2 in common housing
Positive and Return Diodes
Electrical Specifications
Rated resistance Ro: 310 Ω
Insurance rated current: 40 mA
Series resistance: Rs1 = 355 Ω (terminals 1-5, 3-7)
Rs2 = 42 Ω (terminals 2-6, 4-8)
Feedback diode voltage drop: 0.8 V
Operating voltage (safety terminal): 26 V max, at currents less than 10 uA
General Technical Data
Operating temperature: -20 to +60 °C
Dimensions: 22.5 x 114 x 100 mm
Weight (including battery): approx. 125 g
Warranty: 3 years
Relevant data for use in hazardous areas
Directive compliance: 2014/34/EU
Conformity with standards: EN IEC 60079-0:2018, EN 60079-11:2012
Certificate: FTZU 22 ATEX 0018X
Marking: EX ll (3)G [Ex ic Gc] IIC
Voltage Uo: 29.4 V
Current Io: 96 mA
Resistance Ro: 306 Ω min.
Capacitance Co + Impedance Lo: 120 nF + 2 mH or 60 nF + 4 mH
Maximum safe voltage: 250 V