Setra System Model 201 - Manual (Page 2)

2
3.1 Model 201 Output
The Model 201 (current output) is a true 2-wire, 4-20 mA current output device that
delivers rated current into any external load of 0-800 ohms.
Note 1: Mating Hirschmann Connector #GDM3009J, Hirschmann #932214-100 with GDM3-16 Hirschmann
Gasket #731531-002 are not provided by Setra Systems, unless ordered separately as Option 552. Mating
cable-mount Bayonet connector P/N PT06A-8-45 (424) is not provided by Setra Systems.
4-PIN
CABLE HIRSCHMANN BAYONET
CONNECTION WIRE PIN PIN
+ EXCITATION RED #1 A
- EXCITATION BLACK #2 D & B
CASE GND DRAIN #4 SHELL
CONNECTOR PIN WIRING
Minimum Supply Voltage = 12+ 0.02 x Loop Resistance
Maximum Supply Voltage = 30 + 0.004 x Loop Resistance
Model 201
Transducer
(4-20 mA)
Power
Supply
Load
(Monitor)
+
+ +
_
_ _
3-SCREW TERMINAL BLOCK
Positive and negative connections are marked on the 201 terminal block. with” +” for
positive and a “–” for negative. (The center terminal may be used for shielding.)
The 4-20 mA current output units are designed to have current flow in one direction
only - PLEASE OBSERVE POLARITY. We suggest that the electrical cable shield be
connected to the system’s loop circuit ground to improve electrical noise rejection.
3.0 ELECTRICAL INSTALLATION
The Model 201 is available in the following electrical terminations:
Cable; Hirschmann Connector; 4-Pin Bayonet Connector, 3-Screw Terminal Block, and
1/2” male conduit with cable.