Measuring accuracy
Deviation from the characteristic curve according to IEC 60770 – limit point calibration (non-linearity, hysteresis, repeatability)
≤ ± 0.1 % FSO
≤ ± 0.2 % FSO at turn down > 1:5
Long-term stability
≤ ± 0.1 % FSO/Jahr at reference conditions
Display
LC display,
5-digit 7-segment main display,
Character height 8 mm,
Range ± 9,999,
8-digit 14-segment additional display,
Character height 5 mm,
52-segment bar chart,
Accuracy 0.1 % ± 1 digit
Measuring range
See ordering table
Overpressure safety
≤ 0/20 bar:
At least 4 x FS
≤ 0/400 bar:
At least 2 x FS
> 400 bar:
1,000 bar
Operating temperature range
Medium:
-40/+125 °C
short-term (60 min) up to 150 °C
Ambient:
-20/+70 °C
-20/+60 °C in Ex zone 0 at patm 0.8 to 1.1 bar
Storage:
-30/+80 °C
Temperature error band
≤ ± 0.2 % FSO x Turn-Down In compensated range -20/+85 °C
Dynamic characteristics
Response time:
100 ms (without consideration of electronic damping)
Process connection
G½B (EN 837-1/7.3)
Material
Housing
DMU 14 DG Ex:
Aluminium die cast, powder-coated
DMU 14 FG Ex:
Stainless steel 316 L
Pressure connection:
Stainless steel 316 L
Diaphragm:
Stainless steel 316 L
Seal:
FKM (Viton)
Pressure transmission liquid
Silicone oil
Adjustable parameters
Electronic damping:
0/100 s
Offset::
0/90 % FSO
Turn down of span:
1:10
Supply voltage
DC 12 – 28 V
Output signal
2-wire, 4–20 mA
With Ex version/HART<sup>®</sup> communication
Load
R
Max = [(UB – UB
Min)/0.02 A] Ω
HART® communication:
Rmin = 250 Ω
Current input
< 25 mA
Electrical protection
Short circuit proof and protected against reverse polarity
Electrical connection
Cable gland M20 x 1.5
Degree of protection
IP 67 (EN 60529)
CE conformity
EMC Directive 2014/30/EU
RoHS Directive 2011/65/EU
Pressure Equipment Directive 2014/68/EU (module A)
ATEX Directive 2014/34/EU
Ex approval
IBExU 15 ATEX 1059 X
DMU 14 DG Ex:
Ex II 2G Ex ia IIC T4 Gb and Ex II 1D Ex ia IIIC T85°C Da
DMU 14 FG Ex:
Ex II 1G Ex ia IIC T4 Ga and Ex II 1D Ex ia IIIC T85°C Da
