Delta Controls 387 Series User Manual
Page 3
002522-387-G
3
PRODUCT CODE
1
2
3
4
5
6
7
8
9
10
Note that not all options are available on all models!
1 :-
Enclosure
4
=
Ex ia (Intrinsically Safe)
R
=
Ex d
A
=
Weatherproof
F
=
Factory Mutual approved
2 :-
Model,
387
=
Gauge and Absolute Pressure
3 :-
Electrical Entry
1
=
M20 Internal
2
=
½" NPT Internal
4 :-
Wetted Parts
R
=
All 316 Stainless Steel
S
=
17-4PH or 15-5 PH Sensor, 316 Process connection
T
=
All Monel (NACE)
U
=
All Hastelloy (NACE)
C
=
Hastelloy sensor, 316 Process connection
5 :-
Ranges (Bar)
DA
=
1
D2 = 2
DE = 6
EA
=
10
EB = 16
ED = 40
FA
=
100
FD = 400
FE = 600
GA
=
1000
6 :-
Pressure Reference
G
=
Gauge
A
=
Absolute
7 :-
Signal Output
6
=
4 – 20 mA - 50 Volt Isolation
M
=
4 – 20 mA - 500 Volt Isolation
8 :-
Process Connection
J
=
½ " NPT External
N
=
G ½"A to ISO 228
V
=
“Autoclave” High pressure connections
9 :-
Options and Treatments
Codes on Application
10 :-
Special Engineering
Codes on Application
DC
DC
HAZARDOUS AREA
NON-HAZARDOUS AREA
LOAD
LOAD
LOAD
35V(MAX) +DC
0V
0V
0V
4mm EARTH
1 ohm MAX
2
4mm EARTH
1 ohm MAX
2
* TO AVOID SPURIOUS SHUNT CURRENTS
IN THE BARRIER,THE MAX VOLTAGE
SHOULD BE LIMITED TO APPROX 27.5V
28V +
*
28V + *
28V
300
28V
300
10V
50
4mm EARTH
1 ohm MAX
2
1
2
3
4
SHUNT ZENER BARRIERS
Nb ALL SHUNT ZENER BARRIER
SYSTEMS REQUIRE AN IS EARTH
WHEN USED WITH MODEL 4-387.
SIGNAL CODE 6 OR 7 IS NOT
NECESSARY WITH SIGNAL CODES
M OR N.
METHOD 1
BARRIER WITH EARTH RETURN.
LOAD IS FLOATING WITH RESPECT
TO EARTH.
METHOD 2
BARRIER WITH 10V/50ohm RETURN.
LOAD MAY BE EARTHED.
METHOD 3
ACTIVE ZENER BARRIER GIVES
HIGHER POWER CAPABILITY AT
LOAD.
TYPICAL MODELS: MTL 702.
PEPPERL AND FUCHS
ZG30Ex.
Fig 1
SUPPLY
VOLTAGE
REQUIRED
EXTERNAL LOAD Kilo hm
0
5
10
15
20
25
45
30
35
40
1.6
1.4
1.2
1
0.8
0.6
0.4
0
0.2
VOLTAGE v LOAD
Voltage to be within triangular area
Fig 2
Fig 3