Instruction Manual MM850432 ed. 05c
114
15 INTRINSIC
SAFETY SUPPLEMENT
The Multi-Calibrator model MICROCAL 20 DPC has been designed for testing and calibration of process instrumentation and portable test equipment. The unit provides data to
comply with the ISO 9001 requirements for calibration. The MICROCAL 20 DPC can be used to measure and source analogue and digital signals often used in an industrial
environment. It can also be used to simulate a wide variety of temperature sensors. Measurement and source/simulation functions can be operated and read simultaneously.
Model MICROCAL 20 DPC IS marked with label “Ex” has been built in accordance with European Norm II 2 (1) G EEx ia IIC T4 and may be used in IEC defined zones 0,1 and 2.
15.1
IS model specifications
For unit performances see MICROCAL 20 DPC data sheet for the standard version.
Deviations from the standard unit:
0 ... 21 mA Rmax. 600
Ω
Transmitter Supply:
12 VDC at the output terminals of the unit
PCMCIA card:
NOT supported, non removable COMPACTFLASH inside.
Backlight:
supported (it is slightly reduced).
Power Supply:
Integrally mounted battery pack with rechargeable cells and power limiting elements.
Charger:
Suitable for 115/230 V, 50/60 Hz
Recharging time:
Discharged to fully charged, 16 hours at max 75 mA
Battery life:
4 hours in read mode - 2.5 hours at 20 mA source mode
Storage temperature:
-20 to +50 degrees Celsius (+60 permitted for 24 hours)
Operating temperature:
-20 to +50 degrees Celsius
Transmitter supply/Frequency output:
12 V at 25 mA
Milliamps input:
isolated
Drive capacity:
20 mA into 600 Ohm
Input safety parameters:
Ui = 30 V
Ii = 100 mA
Pi = 750 mWatt
Ci= 24
µ
F
Li = 53
µ
H
