Description; Specifications - Emerson Fisher 4200 Series Instruction Manual

4200 Series Transmitters
No person may install, operate or maintain a 4200
Series electronic position transmitter without first D
being fully trained and qualified in valve, actuator
and accessory installation, operation and
maintenance, and D carefully reading and
understanding the contents of this manual. If you
have any questions about these instructions, contact
R
your Fisher sales office.
Neither Emerson
Management, Fisher, nor any of their
affiliated entities assumes
responsibility for the selection, use
and maintenance of any product.
Responsibility for the selection, use
and maintenance of any product
remains with the purchaser and
end-user.

Description

The 4200 Series electronic position transmitters
combine Fisher's field-proven electronic and
mechanical expertise in a versatile, accurate
instrument. It senses the position of a sliding stem
actuator, rotary actuator, vent, damper, or other
device and sends a standard (4 to 20 milliampere)
output signal to an indicating device, a process
control system or programmable logic controller. The
4200 Series transmitters are available as a
transmitter only, as a transmitter with integral high
and low position switches, or with high and low
position switches only. Refer to the nameplate to
determine the type of transmitter. Use the Type
number and table 2 to determine the output and
travel ranges available from the transmitter.
When the instrument is mounted, the potentiometer
shaft (figure 3) is mechanically connected to the
device to sense mechanical motion. Except for the
Type 4215 transmitter, all types of transmitters use a
single potentiometer for position input. The Type
4215 transmitter uses dual potentiometers mounted
on the same shaft. This permits using individual
potentiometers for the transmitter and the position
switch circuits, providing additional electrical
isolation. For long stroke applications, a multi-turn
potentiometer attached to a cable/pulley assembly
senses linear motion of the actuator stem or other
device.
2
Note
R
, Emerson Process
1000
750
650
500
250
0
0
10 20
11
POWER SUPPLY VOLTAGE (VOLTS dc)
A6765/IL
Figure 2. Power Supply Requirements
For instruments equipped with position switches, the
high relay position switch can be set at any point of
travel. The low relay position switch can be offset
from the high relay position switch trip point by as
little as 1/20 of the travel. In the event of a power
loss both position switch relays de-energize,
indicating loss of transmitter power.

Specifications

Specifications for the 4200 Series transmitters are
listed in table 1.
WARNING
This product is intended for a specific
current range, temperature range and
other application specifications.
Applying different current, temperature
and other service conditions could
result in malfunction of the product,
property damage or personal injury.
Instruction Manual
Form 5596
July 2005
OPERATING
REGION
30
MAXIMUM TRANSMITTER
24
TERMINAL VOLTAGE
NOMINAL SUPPLY
VOLTAGE
MINIMUM TRANSMITTER
TERMINAL VOLTAGE