WIKA IS-3 User Manual

16 WIKA operating instructions pressure transmitter, model IS-3
MM/YYYY country code based on 14095850.02 12/2014 EN/CN
EN
3.3 Output signal
Analogue signal 4 ... 20 mA
Permissible load in Ω
■
Model IS-3: ≤ (power supply - 10 V) / 0.02 A - (cable length in m x 0.14 Ω)
■
Model IS-3 with eld case: ≤ (power supply - 11 V) / 0.02 A
For the test circuit signal of the IS-3 model with eld case a load of ≤ 15 Ω applies
3.4 Voltage supply (see product label)
Power supply U
+
■
Model IS-3: DC 10 ... 30 V
■
Model IS-3 with eld case: DC 11 ... 30 V
Power consumption P
i
(ignition protection Ex i)
800 mW (for group III 750/650/550 mW)
Supply and signal circuit for ignition protection Ex i (see product label)
Voltage U
i
= DC 30 V
Current I
i
= 100 mA
Power P
i
= 800 mW (for group III 750/650/550 mW)
Eective internal capacitance
(version with non-detachable cable connection)
C
i
≤ 16.5 nF
C
i
≤ 16.5 nF + 0.2 nF/m
Eective internal inductance
(version with non-detachable cable connection)
L
i
= 0 μH
L
i
= 0 μH + 2 μH/m
3.5 Reference conditions (per IEC 61298-1)
Temperature 15 ... 25 °C
Atmospheric pressure 860 … 1,060 mbar
Humidity 45 ... 75 % r. h., non-condensing
Mounting position Calibrated in vertical mounting position with process connection facing downwards.
Power supply U
+
DC 24 V
3.Specications

WIKA IS-3 Specifications

General

Output Signal	4 ... 20 mA, 2-wire
Power Supply	10 ... 30 VDC
Material	Stainless steel
Accuracy	≤ ±0.5 % of span
Temperature Range	-20 ... +85 °C
Ingress Protection	IP65
Long-term stability	±0.2 % FS per year
Process Connection	G 1/4, G 1/2, 1/4" NPT, 1/2" NPT
Electrical Connection	M12 x 1